170-DH Lawn Tractor

Parts Catalog

Form Number 3328-531 Rev A

© The Toro Company - 2008All Rights Reserved

To order replacement parts, please supply the part number, the quantity, and the description of each part desired.

Each Identified part in an illustration has a reference number. The reference number for a part also appears in the parts list, along with other information about the part.This catalog uses two special reference number formats, one to indicate parts in a service assembly and another to indicate the quantity of a given part in an illustration.

Parts in service assemblies have reference numbers in the form a:b. The a represents the reference number of the entire service assembly and the b represents a sequential number unique to each part within the service assembly.

Ordering Replacement Parts

Understanding Reference Numbers

Service Assembly Reference Numbers

For example, a wheel assembly might be identified by reference number 6, the tire by 6:1, the valve by 6:2, and the wheel by 6:3. When you order the assembly identified by reference number 6, you receive all parts identified by reference numbers 6:1, 6:2, and 6:3. However, you may also order any part individually. Reference numbers of this type appear in illustrations and in part lists.

In an illustration, if a reference number indicates more than one part, the reference number has the form nX y. The n represents the quantity of the part, the X is the multiplication symbol, and the y represents the reference number.For example, in an illustration, the reference number 2X 37 means that two of the parts identified by reference number 37 are indicated.

Reference Numbers Indicating Quantity

Register your product at www.Toro.com

Model No. 74570 - 220000001 and up.

FootnotesNot illustrated Not serviced separatelyIncluded in Gasket Set-Ref. 358. Included in Carburetor Kit-Ref. 121Included in Valve Overhaul Kit-Ref. 1033. Included in Carburetor Gasket Set-Ref. 977.Obtain from your local Briggs & Stratton dealer

Part Description AbbreviationsPart descriptions in this catalog may include the following abbreviations.AR. . . . . . . . . . . . . . . as requiredASM. . . . . . . . . . . . . assemblyBBC. . . . . . . . . . . . . blade brake clutchCARR. . . . . . . . . . . . carriageDEG. . . . . . . . . . . . . degreesEXT. . . . . . . . . . . . . . externalFH. . . . . . . . . . . . . . . flat headGA. . . . . . . . . . . . . . gaugeHD. . . . . . . . . . . . . . heavy-dutyHF. . . . . . . . . . . . . . . hex flangeHH. . . . . . . . . . . . . . hex headHHF. . . . . . . . . . . . . hex head flangeHHFTF. . . . . . . . . . . hex head flange thread formingHJ. . . . . . . . . . . . . . . hex jamHLH. . . . . . . . . . . . . hex lag headHOC. . . . . . . . . . . . . height-of-cutHSBH. . . . . . . . . . . . hex socket button headHSFH. . . . . . . . . . . . hex socket flat headHSH. . . . . . . . . . . . . hex socket headHWH. . . . . . . . . . . . . hex washer headHWHTF. . . . . . . . . . . hex washer head thread

forming

HYD. . . . . . . . . . . . . hydraulicLH. . . . . . . . . . . . . . . left handNI. . . . . . . . . . . . . . . nylon insertNPTF. . . . . . . . . . . . national pipe thread finePFH. . . . . . . . . . . . . phillips flat headPPH. . . . . . . . . . . . . phillips pan headPPHTF. . . . . . . . . . . phillips pan head thread

formingPRH. . . . . . . . . . . . . phillips round headPTH. . . . . . . . . . . . . phillips truss headPTO. . . . . . . . . . . . . power-take-offRH. . . . . . . . . . . . . . right handROPS. . . . . . . . . . . . roll-over protection systemSFH. . . . . . . . . . . . . slotted fillister headSHH. . . . . . . . . . . . . slotted hex headSHWH. . . . . . . . . . . . slotted hex washer headSPH. . . . . . . . . . . . . slotted pan headSQH. . . . . . . . . . . . . square headSRH. . . . . . . . . . . . . slotted round headSTD. . . . . . . . . . . . . standardTAP. . . . . . . . . . . . . . self tappingTTH. . . . . . . . . . . . . . torx truss head

ContentsDescription Page

. . . . . . 3Body Assembly

. . . . . . 5Front Axle Assembly

. . . . . . 6Steering Assembly

. . . . . . 7Body Assembly

. . . . . . 9Engine Assembly. . . . . . 10Operation Brake By-Pass Assembly. . . . . . 11Operation Travel Pedals Assembly. . . . . . 12Transmission Drive Assembly. . . . . . 14Control Shaft Assembly. . . . . . 15Differential Gear Assembly. . . . . . 16Final Pinion Assembly. . . . . . 17Axle Shaft Assembly. . . . . . 18Brake Assembly. . . . . . 19Fan Pulley Assembly. . . . . . 20Range Shift Assembly. . . . . . 21Center Case Assembly. . . . . . 22Pump Shaft Assembly. . . . . . 23Motor Shaft Assembly. . . . . . 24Transaxle Case Assembly. . . . . . 25Chute Collector Assembly. . . . . . 26Grass Collector Assembly. . . . . . 27Operation Cutting Pan Assembly. . . . . . 28Cutting Pan Assembly. . . . . . 29Operation Mower Lift Assembly

Description Page. . . . . . 30Electrical Assembly. . . . . . 31Electrical Assembly (continued). . . . . . 32Electrical Assembly (continued). . . . . . 33Electrical Assembly (continued)

. . . . . . 34Cylinder Assembly Briggs and Stratton 311777-0151-E1

. . . . . . 35Cylinder Head Assembly Briggs and Stratton 311777-0151-E1

. . . . . . 36Crankcase Assembly Briggs and Stratton 311777-0151-E1

. . . . . . 37Carburetor Assembly Briggs and Stratton 311777-0151-E1

. . . . . . 38Governor Assembly Briggs and Stratton 311777-0151-E1

. . . . . . 39Oil Filter, Tube, and Pump Assembly Briggs and Stratton 311777-0151-E1

. . . . . . 40Air Cleaner Assembly Briggs and Stratton 311777-0151-E1

. . . . . . 41Blower Housing Assembly Briggs and Stratton 311777-0151-E1

. . . . . . 42Starter Assembly Briggs and Stratton 311777-0151-E1

. . . . . . 43Carburetor Overhaul Kit Assembly Briggs and Stratton 311777-0151-E1

3328-531 Rev A

Body Assembly Ref Part No. Qty. Description

Bracket-Support, Seat1 104-2926 2Washer-Spring2 104-2927 4Screw-HH3 33114-025 3Bolt-Hex4 104-3192 2Washer-Spring6 104-2927 6Support-Seat7 104-2929 1Bolt-Carriage8 104-2930 2Washer-Flat9 104-2931 2Spring-Seat10 104-2932 2Spacer-Split11 104-2933 2Seat12 88-3950 1Bracket13 104-2934 1Bushing14 104-2935 2Nut-Lock15 33023-00 2Washer-Spring16 104-2936 2Knob-Adj.17 104-2937 2Frame-Chassis18 104-2938 1Screw-HH19 33114-030 1Screw-Support, Seat20 104-2939 2Washer-Plain21 33094-00 6Nut-Lock22 33024-00 6Screw-HSFH23 104-2940 2Washer-Finish24 104-2941 2Fender25 106-5752 1

Ref Part No. Qty. DescriptionWasher-Flat26 33095-00 4Nut-Lock27 33025-00 4Nut-Lock28 87-5140 6Washer-Flat29 104-2943 6Footrest ASM30 104-2944 1Spring-Seat31 104-2945 2Nut-Lock32 33024-00 2Washer-Plain33 104-2946 6Screw-HH34 33114-020 2Nut-Lock35 87-5140 6Washer-Flat36 104-2943 6Bolt-Carriage37 104-2948 6Cap-Hub38 104-2857 2Washer-Rubber39 104-2949 2Washer-Rubber39 104-2951 2Washer-Rubber40 104-2952 2Washer-Rubber41 104-2952 6Bracket-Right Seat42 104-2953 1Bracket-Left Seat43 104-2954 1Screw44 104-3195 4Decal - Tower 170Dh45 100-9124 2Decal-Brake, Parking46 104-3237 1Decal-Starting47 104-3238 1Decal-Operation, Hydro48 104-3241 1

3

3328-531 Rev A

Body Assembly (continued) Ref Part No. Qty. Description

Decal-Bag To Frame50 104-3242 1Decal-Switch51 99-5340 1Decal-Danger52 93-7276 1Decal-HOC, RH53 104-3240 1Decal-HOC, LH54 104-3239 1Decal-Instruction55 104-2903 1Screw56 60-6910 6Cover-Rear58 106-5753 2Screw59 106-5754 1Washer-Flat60 106-5755 8Box-Battery61 106-5756 1

4

3328-531 Rev A

Front Axle Assembly Ref Part No. Qty. Description

Screw-HH1 33116-090 1Screw-HH2 33115-080 2Spacer3 104-2851 2Fitting-Grease4 104-2904 3Washer-Flat5 104-2905 4Clip-Spring6 104-2891 2Axle-Front7 104-2852 1Washer-Flat8 104-2906 2Nut-Lock9 33025-00 2Bushing-Axle, Front10 104-2890 2Nut-Self Locking11 104-2907 1Rod-Tie, Front Axle12 104-2855 1Key-Woodruff13 104-2856 1Nut-Lock14 33023-00 1Cap-Hub15 104-2857 2Clip-Spring16 104-2891 2Washer17 104-3206 2Front Tire Wheel ASM18 104-2858 2Spindle-LH19 104-2860 1Screw-HH20 33113-045 1Lever-Spindle, Steering21 104-2862 1Nut-Hex22 33015-00 4Nut-Hex23 21-0360 2Spindle-RH27 104-2866 1

Ref Part No. Qty. DescriptionWasher28 106-5757 4Tyre -Turf Saver, 2-Ply50 104-2868 2Tube51 104-2870 2Valve-Tyre54 104-2875 2Joint-Ball, Angle55 104-2876 2

5

3328-531 Rev A

Steering Assembly Ref Part No. Qty. Description

Nut-Hex22 33015-00 4Hsg-Ball Angle23 104-2863 2Washer28 106-5757 4Nut-Lock71 33024-00 4Washer-Plain72 33094-00 4Screw-HH73 33114-020 2Clip-Spring74 104-2891 1Spacer-Upper75 104-2877 1Bearing-Spherical76 104-2878 2Spacer-Lower77 104-2879 1Shaft-Steering78 106-5773 1Nut-Lock79 33026-00 1Nut-Lock81 33025-00 1Washer-Plain82 33094-00 1Plate-Steering83 105-1238 1Gear-Sector84 104-2883 1Screw-Hex87 104-2910 1Link-Drag88 104-2886 1Bolt-Shoulder89 105-1239 1Pivot-Steering90 105-1240 1Bushing91 105-1241 1Screw-HH92 33114-016 2

6

3328-531 Rev A

Body Assembly Ref Part No. Qty. Description

Cover-Bumper1 104-2955 1Bumper2 104-2956 1Hood ASM3 104-2957 1Bushing4 104-2959 1Holder-Tank, Fuel5 104-2960 1Nut-Lock6 33023-00 2Screw7 104-2961 2Brace8 104-2962 1Nut-Lock9 33026-00 1Wheel-Steering10 98-1471 1Cover-Wheel, Steering10:1 98-1468 1Screw-Flt HD12 104-2966 2Knob13 66-0120 1Nut-Lock15 87-5140 14Cable-Throttle And Choke16 106-4166 1Panel-Dash18 104-2968 1Brace19 104-2970 1Bracket20 104-2971 1Panel-Right21 104-2972 1Panel-Left22 104-2973 1Latch-Hood23 92-6960 2Screw-HH24 33114-020 6Washer-Plain25 104-2946 6Nut-Lock26 33024-00 4

Ref Part No. Qty. DescriptionBar-Safety27 104-2974 1Spring-Hood28 104-2975 1Shield-Heat29 104-2976 1Screw-Slf Drl30 104-2977 3Washer-Spring31 104-2927 2Screw32 106-5759 2Washer33 106-5758 1Screw34 104-2980 6Screw35 104-2981 4Screw36 104-2982 4Screw37 104-2983 2Washer38 104-2984 6Nut-Hex39 104-2985 6Bracket40 104-2986 1Grill41 100-1344 1Reflector And Lamp ASM42 88-3970 1Socket-Light42:1 111686 2Bulb42:2 7228 2Reflector42:3 93-8741 1Lens - Headlight43 92-6656 1Hood-Top44 92-6658 1Hood - Baffle45 104-3245 1Plennum-Air46 104-2988 1Side-Hood, RH47 92-6650 1

7

3328-531 Rev A

Body Assembly (continued) Ref Part No. Qty. Description

Side-Hood, LH48 92-6652 1Foam-Sidepanel49 92-7148 2Screw50 104-2990 8Nut-Hex51 104-2991 8Screw-Plastite52 46-8093 2Screw54 32105-15 4Nut55 92-7006 4Foam-Hood56 94-1980 2Decal-PTO57 104-3235 1Decal-Choke/Throttle/Key58 104-3236 1Decal-Hood, LH59 95-0801 1Decal-Hood, RH60 95-0800 1Emblem-Horsehead61 92-6987 1Decal62 98-1459 1

8

3328-531 Rev A

Engine Assembly Ref Part No. Qty. Description

Screw-HH1 322-3 2Washer-Spring2 104-2927 2Tube-Exhaust3 104-3221 1Gasket-Muffler4 88-4410 1Valve-Oil Drain6 104-3208 1Engine-Briggs And Stratton, Intek, 1Cyl Model 311777-0151-E1

7 1

Pin-Hair8 104-3144 1Gas Cap ASM9 88-3980 1Gasket-Cap, Gas9:3 88-4010 1Tank-Fuel10 104-3057 1Line-Fuel11 104-3211 1Valve-Tank, Fuel12 104-3224 1Clamp-Line, Fuel13 104-3212 4Line-Fuel14 104-3213 1Nut-Lock15 33024-00 4Washer-Plain16 33094-00 4Screw-HH17 33114-035 4Cover-Front18 104-3222 1Washer-Flat19 104-2931 2Screw20 106-5763 2Washer-Flat21 104-2979 4Washer-Spring22 104-2927 4

Ref Part No. Qty. DescriptionScrew-HH23 33114-020 4Screw27 106-5763 4Muffler28 104-3229 1Guard-Muffler, LH29 104-3214 1Guard-Muffler, RH30 104-3215 1Nut-Hex35 33013-00 1Washer-Spring36 104-3186 1Screw-HH37 33113-016 1Tank-Fuel W/Cap40 104-3220 1Decal-Engine 17Hp41 104-2902 1Cover-Manifold, Exhaust42 105-1242 1

9

3328-531 Rev A

Operation Brake By-Pass Assembly Ref Part No. Qty. Description

Lever-Spring1 104-2992 1Washer2 104-2984 1Nut-Hex3 104-2985 1Washer-Plain4 33094-00 5Bracket-Rod, Brake5 104-2993 1Pin-Spring6 104-2994 1Rod-Lever, Bypass7 104-2995 1Lever-Bypass8 104-3324 1Washer9 104-3193 2Pin-Cotter10 104-2997 1Pad-Pedal11 104-2998 1Pedal12 104-2999 1Nut-Lock14 33024-00 2Spring-Brake15 104-3002 1Rod-Connecting, Brake16 104-3003 1Shaft-Brake17 104-3004 1Spring-Brake, Hand18 104-3005 1Lever-Brake, Hand19 104-3006 1Screw-HH20 33114-020 1Clamp-Lever, Parking Brake21 104-3007 1Pin-Spring22 104-3008 1Screw-Hex23 104-3009 1Pin-Cotter24 104-3016 2Bracket-Rod, Brake25 104-3011 1

Ref Part No. Qty. DescriptionSpring26 104-3012 1Plate-Bypass27 104-3323 1Stirrup28 104-3014 2Stirrup29 104-3015 1Washer-Flat30 33095-00 2Cap31 104-3247 1Washer32 106-5768 1Washer33 106-5769 1Washer34 106-5770 3Washer35 106-5771 2

10

3328-531 Rev A

Operation Travel Pedals Assembly Ref Part No. Qty. Description

Pedal-Rear, Travel1 104-3017 1Pad-Pedal2 104-3018 1Pedal-Travel, Front3 104-3019 1Pad-Pedal, Front4 104-3020 1Pad-Travel5 104-3021 1Rod-Tie6 104-3022 1Shaft-Diagonal7 104-3023 1Link-Formed8 104-3024 1Shaft-Diagonal9 104-3025 1Pin10 104-3026 1Washer-Flat11 33095-00 3Pin-Cotter12 104-3016 2Pin-Cotter13 104-3027 2Spacer14 104-3028 1Pin15 104-3029 1Nut-Hex16 33014-00 2Capscrew-HH17 43-3220 1Pin-Spring18 104-3008 2Pin-Spring19 104-3030 1Washer20 104-3031 1Screw-HH21 33114-025 1

11

3328-531 Rev A

Transmission Drive Assembly Ref Part No. Qty. Description

Pully-Idler1 104-2887 4V-Belt-Traction11 104-2888 1Transmission12 104-2889 1Cap-Hub13 104-2857 2Clip-Spring14 104-2891 2Washer15 104-3206 4Key-Square16 104-2892 2Rear Wheel Tyre ASM17 104-2893 2Spacer-Axle18 104-2895 2Screw-HH19 33114-080 4Washer-Plain20 33094-00 8Nut-Lock21 33024-00 4Screw-HH22 33115-040 4Washer-Flat23 33095-00 4Bushing-Idler24 104-2896 4Nut-Lock25 33025-00 5Spring28 104-2897 1Washer-Flat29 33095-00 1Nut-Lock30 33025-00 1Screw-HH31 33114-020 1Washer-Plain32 33094-00 1Retainer33 104-2898 1Nut-Lock34 33024-00 1Key-Square35 104-2899 1

Ref Part No. Qty. DescriptionScrew-HH36 3212-10 1Washer-Spring, Belleville37 93-9043 1Clutch-Electric38 104-3334 1Pulley-Engine39 104-2911 1Nut-Lock41 33024-00 1Washer-Plain42 33094-00 1Arm-Idler43 104-2912 1Pulley-Idler44 104-2913 1Bushing-Idler45 104-2896 1Screw-HH46 33115-040 1Tire-Turf Saver60 104-2916 2Tube61 104-2918 2Wheel ASM62 104-2920 2Nut-Wheel64 104-2922 8Screw-HH70 33115-045 1Sleeve71 104-2925 1Plate-Reinforcing72 104-3343 2Fitting-Grease73 104-2904 1Bar ASM80 104-3327 1Arm-Switch81 104-3328 1Tenon83 104-3326 1Roller84 104-3329 1Arm-Transaxle88 104-3342 1Stirrup90 104-3341 1

12

3328-531 Rev A

Transmission Drive Assembly (continued) Ref Part No. Qty. Description

Stirrup91 104-3014 1Screw-Thread Forming92 104-3344 2Screw-Hex93 104-3065 2Washer-Plain95 33094-00 2Nut-Lock96 33024-00 2

13

3328-531 Rev A

Control Shaft Assembly Ref Part No. Qty. Description

Shaft-Control1 114-3181 1Fulcrum-Eccentricity2 104-3292 1Spring-Torsion3 104-3293 1Arm-Control4 114-3180 1Lever-Control5 104-3295 1Plate-Jerky6 104-3296 1Washer7 93-0417 1Pin-Cotter8 114-3182 1Pin9 104-3297 1Pin-Roll10 93-0411 1Packing11 104-3298 2Nut12 93-0420 1

14

3328-531 Rev A

Differential Gear Assembly Ref Part No. Qty. Description

Differential Gear Kit1 104-3299 1Gear-Final2 104-3301 1

15

3328-531 Rev A

Final Pinion Assembly Ref Part No. Qty. Description

Collar-Final Pinion1 104-3302 1Shaft-Reduction2 104-3303 1Washer3 104-3304 2Gear-Reduction4 104-3305 1Pinion-Final5 104-3306 1

16

3328-531 Rev A

Axle Shaft Assembly Ref Part No. Qty. Description

Shaft-Axle, LH1 104-3307 1Shaft-Axle, RH2 104-3308 1Washer-Thrust3 104-3309 2Ring4 104-3310 2Seal5 104-3311 2Bushing6 104-3312 2

17

3328-531 Rev A

Brake Assembly Ref Part No. Qty. Description

Ring1 104-3313 1Shoe-Brake2 104-3314 1Arm-Brake3 104-3315 1Shaft-Brake4 104-3316 1Spring-Return, Brake5 104-3317 1Actuator-Brake6 104-3318 1Pin7 92-0767 1O-Ring8 92-0786 2Pin9 104-3319 2

18

3328-531 Rev A

Fan Pulley Assembly Ref Part No. Qty. Description

Collar-Spline1 104-3320 1Pulley-Transmission2 104-3197 1Fan- Transmission3 104-3199 1Washer-Lock4 104-3321 1E-Ring5 93-0387 1E-Ring6 104-3198 1

19

3328-531 Rev A

Range Shift Assembly Ref Part No. Qty. Description

Metal-Thrust1 104-3286 2Plate-Swash2 104-3287 1Bearing3 104-3288 1Plate-Thrust, A4 104-3289 1Plate-Thrust, B5 104-3290 1

20

3328-531 Rev A

Center Case Assembly Ref Part No. Qty. Description

Case-Center1 104-3267 1Pin-Knock2 104-3268 2Plug3 104-3269 1Packing4 93-0419 1Pin5 104-3270 1Filter6 104-3271 1Bolt7 104-3272 3Valve8 104-3273 2Spring9 104-3274 2Filter10 104-3275 2Magnet11 104-3257 1

21

3328-531 Rev A

Pump Shaft Assembly Ref Part No. Qty. Description

Block-Cylinder1 104-3276 1Spring-Pump2 104-3277 1Shaft-Pump3 104-3278 1E-Ring4 93-0387 2Bearing-Ball5 93-0374 1

22

3328-531 Rev A

Motor Shaft Assembly Ref Part No. Qty. Description

Housing1 104-3279 1Bearing2 104-3280 1Block-Cylinder3 104-3281 1Washer4 104-3282 1Shaft-Motor5 104-3283 1Ring-Snap6 93-0373 1Motor-Gear7 104-3284 1Bearing8 104-3285 1

23

3328-531 Rev A

Transaxle Case Assembly Ref Part No. Qty. Description

Transaxle Case Set1 104-3251 1Housing-Upper2 104-3252 1Housing-Lower3 104-3253 1Tank-Reservoir, With Cap4 104-2914 1Tube5 104-3254 1Clamp-Miniature6 104-3255 2Valve-Vent, 157 104-3256 1Magnet8 104-3257 1Holder-Magnet9 104-3258 1Seal-Oil10 104-3259 1Spring11 93-0396 1Shaft-Bypass12 104-3260 1Lever-Bypass13 104-3261 1Ring14 104-3262 1Plug-Bore15 104-3263 1Ring16 93-0360 1Pin17 104-3264 1Pin18 104-3265 1Packing19 93-0419 2Seal20 93-0361 1Screw-TAP21 93-0363 14Screw-TAP22 104-3266 2

24

3328-531 Rev A

Chute Collector Assembly Ref Part No. Qty. Description

Tunnel1 104-3054 1Nut-Hex2 104-2985 4Plate-Support3 104-3055 1Seal-Rubber4 104-3056 1Screw8 104-2983 1Screw-SFH9 104-3058 3Cover-Switch10 104-3059 1Bolt-Carriage11 104-3060 2Screw12 104-3061 4Support-Collector, Right13 104-3062 1Support-Collector, Left14 104-3063 1Hitch-Tow15 104-3064 1Screw-Hex16 104-3065 6Collector Plate ASM17 104-3066 1Washer-Flat18 33095-00 6Nut-Lock19 33024-00 10Support-Hitch, Tow20 104-3067 1Screw-Hex21 104-3068 5Bracket-Shield, Protective26 104-3069 1Shield-Protective27 104-3070 1Shield-Adjustable28 104-3336 1Hopper-Receiving29 104-3335 1Overload Switch ASM31 104-3074 1Screw36 104-2961 2

Ref Part No. Qty. DescriptionScrew-HH37 33113-012 4Nut-Lock38 33023-00 4Nut-Wing39 32103-28 2Washer-Flat40 33093-00 2Bolt-Carriage41 104-2948 2Nut-Lock42 87-5140 2Decal-Bypass, Hydro43 104-3243 1Decal-Position, Bagging44 104-2853 1Plate-Reinforcing45 104-3347 2Washer-Spring46 104-3348 2Bushing47 106-5772 1

25

3328-531 Rev A

Grass Collector Assembly Ref Part No. Qty. Description

Collector ASM1 106-5760 1Screw2 60-6910 2Nut-Lock3 87-5140 22Spring-Coll, Interlock Switch4 104-3033 1Bracket-Spring5 106-5761 1Grip-Handle6 104-3035 1Lever-Dumping7 104-3036 1Front Frame ASM8 104-3037 1Bag-Grass9 104-3038 1Support-Corner, Right10 104-3039 1Washer-Flat11 104-2943 8Screw12 104-2981 6Washer13 52-6430 14Screw-Hex14 104-3041 4Support-Corner, Left15 104-3042 1Brace-Connecting16 104-3043 1Screw-Hex17 104-3044 2Bottom Frame ASM18 104-3045 1Nut-Lock19 33024-00 1Brace20 104-3046 2Screw-HH21 33114-025 1Bolt-Carriage22 104-2948 4Screw-HH23 33114-020 2Washer-Spring24 104-2927 2

Ref Part No. Qty. DescriptionWasher-Plain25 104-2946 4Top Frame ASM26 104-3047 1Handle-Lift27 104-3048 1Cover-Collector28 106-5762 1Screw29 106-5763 1Washer-Rubber30 104-2952 6Decal-Bag To Frame34 104-3242 1Decal - Horsehead35 104-3322 1

26

3328-531 Rev A

Operation Cutting Pan Assembly Ref Part No. Qty. Description

Cutting System Complete1 104-3079 1Screw-HH2 33115-090 4Wheel-Gauge3 104-3080 4Nut-Lock4 33025-00 4Mower Housing Complete5 104-3081 1Nut-Lock, HF6 104-3082 6Housing-Quill7 104-3083 2Washer-Plain8 33094-00 8Screw-HH9 33114-020 8Support-Ring10 104-3084 2Bolt-HHF11 104-3085 6Key12 104-3086 1Shaft-Left Blade13 104-3087 1Screw-Hex14 104-3088 1Blade-Right15 104-3089 1Blade-Left16 104-3090 1Screw-Hex Left17 104-3091 1Washer-Belleville18 104-3092 2Pin-Shear, Grooved19 104-3093 4Adapter-Blade20 106-4185 2Ring-Locking21 104-3095 2Bearing22 104-3096 4Key-Square23 104-3097 3Shaft-Right Blade24 104-3098 1

Ref Part No. Qty. DescriptionStiffener-Blade25 104-3207 2Decal-Danger26 93-7824 2Washer28 106-5767 4

27

3328-531 Rev A

Cutting Pan Assembly Ref Part No. Qty. Description

Lever-Engagement40 104-3099 1Nut-Lock41 33024-00 1Spring42 104-3101 1Nut-Hex43 104-3102 1Washer-Spring44 104-2927 1Washer-Plain45 104-2946 1Pulley-Idler46 104-3103 1Bushing47 104-3104 1Retainer-Belt48 104-3105 1Nut-Lock49 33026-00 6Washer-Flat50 104-3106 2Pulley-Drive51 104-3107 1Screw-HH52 33114-025 1Washer-Spring53 104-2927 1Spacer-Shoulder54 104-3108 1Arm-Idler55 104-3109 1Screw-HH56 33114-050 1Screw-HH57 33113-016 3Washer-Flat58 104-3110 3Washer-Rubber59 104-3111 3Belt-Cog60 104-3112 1Cog Pulley ASM61 104-3113 2Pin-Pulley, Cog62 104-3114 2Nut-Lock63 33024-00 1

Ref Part No. Qty. DescriptionWasher-Plain64 33094-00 1Support-Pulley65 104-3115 1Pulley-Cog, Drive66 104-3116 2Nut-Lock67 33024-00 8Screw68 104-2961 1Washer-Flat69 33093-00 1Nut-Lock70 33023-00 1Screw-HH71 33114-025 1Plate-Anchor72 104-3117 1Blade Drive Plate ASM73 104-3118 1Washer74 104-2909 1Screw-Hex75 104-3119 1Bracket-Idler76 104-3120 1Washer-Flat77 33095-00 1Nut-Lock78 33025-00 1Pulley-Cog79 104-3121 2Bearing80 104-3122 2Ring-Locking81 104-3123 2Washer-Flat82 104-3124 4Cover-Belt83 104-3125 1V-Belt84 104-3127 1

28

3328-531 Rev A

Operation Mower Lift Assembly Ref Part No. Qty. Description

Grip-Handle1 104-3129 1Ratchet-Plate, Pivot2 104-3130 1Button-Plunger3 104-3131 1Rod-Connection4 104-3132 1Nut-Lock5 33024-00 3Screw-HH7 33114-020 2Segment-Gear8 104-3133 1Spring9 104-3134 1Pin-Arm Lever10 104-3135 1Lever-Arm, Height Adj.11 104-3136 1Clip-Pin12 104-3137 1Pin-Spring13 104-2994 2Shaft-Height Adj.14 104-3138 1Washer-Plain17 33094-00 3Nut-Lock21 33025-00 1Washer-Flat22 33095-00 1Bolt-Eye23 104-3139 1Spring-Lift24 104-3140 1Pivot Arm ASM25 104-3141 1Pin-Lifting27 104-3142 1Nut-Lock28 33025-00 1Pin-Cotter29 104-3016 2Pin-Bent30 104-3143 4Pin-Hair31 104-3144 4

Ref Part No. Qty. DescriptionSuspension-Mower Deck, Front32 104-3145 1Nut-Lock33 33026-00 1Nut-Hex34 33016-00 1Holder-Front35 104-3146 1Washer-Flat36 104-3124 2Pin37 104-3147 1Clip-Hair Pin38 104-3148 2Rod-Height Adj.41 104-3149 1Pin-Cotter42 104-3151 1

29

3328-531 Rev A

Electrical Assembly Ref Part No. Qty. Description

Battery-12V1 104-3152 1Nut-HHF2 32128-32 2Screw-HH3 33113-020 2Clamp-Battery4 104-3153 1Boot-Rubber5 104-3154 2Cable-Battery, Negative6 104-3155 1Nut-Lock7 33024-00 3Tie-Cable12 3334-945 3Holder- Harness, Wiring14 104-3156 1Clip-Snap15 104-3157 11Harness-Wire, Lights16 88-4320 1Bulb-Light18 104-3158 2Socket-Light19 104-3159 2Harness-Clutch20 104-3160 1Harness-Wiring21 104-3337 1Cap22 104-3163 1Bushing23 104-3164 1Bushing24 104-3165 3Cable-Battery Positive25 104-3166 1Clip-Nylon26 104-3167 2Bushing27 104-3168 1Screw-HH28 33114-020 1Washer-Plain29 33094-00 1

30

3328-531 Rev A

Electrical Assembly (continued) Ref Part No. Qty. Description

Module-Clutch74 99-3701 1Screw75 60-6910 2Washer76 52-6430 2Nut-Lock77 87-5140 2Circuit-Memory78 104-3169 1Holder-Switch79 104-3333 1Screw80 104-3190 2Holder-Switch81 104-3332 1Screw82 104-2980 2Switch-Pole, Single83 95-1653 1Screw84 104-2983 2Nut-Hex85 104-2985 2Switch-Delta86 104-3338 1Cover-Switch87 104-3339 1Switch-Delta90 104-3330 1Bolt91 104-3331 2Nut-Lock92 46-0430 2Washer93 52-6430 2

31

3328-531 Rev A

Electrical Assembly (continued) Ref Part No. Qty. Description

Switch-PTO57 93-9998 1Switch-Ignition58 92-6785 1Nut-Hex59 104-3172 1Key-Ignition60 62-7770 2Nut-Lock61 87-5140 4Washer-Flat62 104-2943 6Screw-Hex63 104-2978 4Relay64 104-3173 2Lens-Dash Lights65 92-6707 1Housing-Light, Indicator66 92-6732 1Screw67 104-3191 3Screw-Cap68 104-3174 1Washer69 104-3175 3Nut-Hex70 104-2985 3Bulb71 104-3176 4Buzzer72 104-3177 1Decal-Dash73 104-3194 1

32

3328-531 Rev A

Electrical Assembly (continued) Ref Part No. Qty. Description

Cover-Protective35 104-3178 2Switch-Delta36 104-3179 3Switch-Omron44 104-3185 1Switch-Starter45 46-5780 1Washer-Tooth45:1 3254-5 1Nut-HH45:2 218-461 1Screw-HH47 33113-012 2Washer-Spring48 104-3186 2Washer-Flat49 33093-00 2Nut-HHF50 32128-32 1Boot-Rubber51 104-3187 1Lead-Starter, Electric52 104-3188 1Solenoid53 47-1910 1Screw54 104-3349 2

33

3328-531 Rev A

Briggs and Stratton 311777-0151-E1Cylinder Assembly

Ref Part No. Qty. DescriptionCylinder Assembly1 690156 1Bushing And Seal Kit2 399265 1Seal-Oil3 391086 1Breather ASM8 495735 1Gasket-Breather9 27803 1Screw-Hex.10 691666 1Breather Tube11 691328 1Cylinder Shield306 690499 1Screw-Hex307 94930 1Bushing-Crank, Governor552 491986 1Seal-Oil691 491323 1Pin-Locating718 690959 1

34

3328-531 Rev A

Briggs and Stratton 311777-0151-E1Cylinder Head Assembly

Ref Part No. Qty. DescriptionCylinder Head5 690188 1Gasket-Cylinder Head7 692410 1

Screw13 690360 1Valve-Exhaust33 495856 1Valve-Intake34 495857 1Spring-Valve35 691279 1Retainer-Valve40 224641 1Tappet-Valve45 690564 1Manifold-Intake50 690193 1Gasket-Intake51 273650 1

Screw54 691148 1Adjuster-Valve192 492160 1Cap-Valve238 691843 1Seal-O Ring277 692138 1

Plug-Spark337 491055 1Nut354 94010 1Stud365 690227 1Wrench-Plug, Spark383 89838 1Boot-Spark Plug635 280872 1Stud (Rocker Arm)830 696095 1Seal-Valve868 499236 1

Ref Part No. Qty. DescriptionSeal-O Ring914 690690 1Gasket-Cover, Rocker1022 272475 1

Cover-Rocker1023 692492 1Guide-Push Rod1026 494432 1Push Rod (Exhaust)495136 1Arm-Rocker1029 691751 1Guide-Push Rod1034 495248 1

35

3328-531 Rev A

Briggs and Stratton 311777-0151-E1Crankcase Assembly

Ref Part No. Qty. DescriptionEnginesump4 693582 1Gasket-Crankcase (1/64")12 271916 1Gasket-Crankcase (.005")271997 1Gasket-Crankcase (.009")271996 1Plug-Pipe15 94239 1Plug-Oil15A 91488 1Crankshaft16 690136 1Seal-Oil20 291675 1Screw22 692125 1Key24 222698 1Piston Assembly (Standard)25 692271 1Piston Assy. (.010" O.S.)692272 1Piston Assy. (.O2O" O.S.)692273 1Piston Assy. (.030" O.S.)692274 1Ring Set (STD)26 690162 1Ring Set (.010" O.S.)690164 1Ring Set (.020" O.S.)690166 1Ring Set (.030" O.S.)690168 1Ring Set (.030" O.S.)690168 1Lock-Piston Pin27 691299 1Pin-Piston (STD.)28 498319 1Pin-Piston (.005 O.S.)498320 1Connecting Rod (STD)29 692419 1Connecting Rod (.020" Undersize)499940 1

Ref Part No. Qty. DescriptionScrew32 692852 1Gear-Governor43 490815 1Cam Shaft46 693930 1Key-Timing146 94196 1Gear-Timing741 691284 1Link-Counteweight757 213998 1Counterweight758 692423 1Pin-Counterweight759 230787 1Screw (Counterweight)761 691096 1Screen-Pump, Oil1017 690770 1

36

3328-531 Rev A

Briggs and Stratton 311777-0151-E1Carburetor Assembly

Ref Part No. Qty. DescriptionGasket-Intake51 273650 1

Bushing-Throttle93 281346 1Idle Mixture Kit94 498030 1Valve-Choke95 94098 1Idle Speed Kit98 495800 1Pin-Hinge, Float104 231789 1Valve-Needle, Float105 231855 1Seat-Inlet106 231854 1Valve-Choke108 224558 1Valve-Choke108A 224540 1Jet-Main117 232118 1Push Rod (Exhaust)495136 1Carburetor125 499153 1Welch Plug(Sold In Kit Only)127 1Valve-Throwe130 224539 1Throttle Shaft Kit131 494379 1Float-Carburetor133 494381 1Gasket-Bowl, Float137 281165 1

Choke Shaft Kit141 495097 1Choke Shaft Kit141A 495931 1Carburetor Nozzle142 232117 1Connector-Fuel186 493496 1

Ref Part No. Qty. DescriptionWasher355 281164 1

Seal-Choke Shaft634 494453 1Seal-Choke Shaft634A 494455 1Friction Spring689 262715 1Clip-Wire729 281390 1Wire Stop789 497708 1Solenoid947 497672 1Bowl-Float975 495933 1Seal-Shaft987 281166 1Cap-Limiter1091 691333 1

37

3328-531 Rev A

Briggs and Stratton 311777-0151-E1Governor Assembly

Ref Part No. Qty. DescriptionHose-Fuel187 492790 1Screw188 94929 1Choke Link202 262767 1Spring-Governor209 692208 1Link-Choke216 691840 1Bracket-Control222 694042 1Lever-Governor227 493935 1Spring-Link232 262785 1Filter-Fuel240 394358 1Clamp-Casing265 221535 1Screw-Sem267 94906 1Washer404 94927 1Nut-Hex505 231978 1Bolt-Carriage562 94907 1Clamp-Hose601 95162 1Pin-Cotter614 93306 1Crank-Governor616 495157 1

38

3328-531 Rev A

Briggs and Stratton 311777-0151-E1Oil Filter, Tube, and Pump Assembly

Ref Part No. Qty. DescriptionScrew-Shoulder287 94903 1Screw318 694476 1Armature-Magneto333 495859 1Screw334 691061 1Alternator474 691065 1Bracket-Mounting493 694475 1Regulator501 491546 1Shield-Cable521 690581 1Dipstick523 692014 1Seal524 281370 1Dipstick Tube525 691398 1Screw (Regulator)526 690326 1Clip-Wire729 281390 1Screw750 691033 1Wire Stop789 497708 1Clamp813 690635 1O-Ring842 270920 1Fill Group-Oil847 496415 1Cable Terminal851 224110 1Wire-Connector / Alternator877 393456 1O-Ring Seal943 280801 1Cover-Pump, Oil965 499613 1Pump-Oil1024 499054 1Filter-Oil1027 492932 1

Ref Part No. Qty. DescriptionTie-Cable1054 280275 1Screw1119 93621 1

39

3328-531 Rev A

Briggs and Stratton 311777-0151-E1Air Cleaner Assembly

Ref Part No. Qty. DescriptionNut167 281051 1O-Ring176 281106 1Screw-Torx Hex.423 692129 1Knob467 493903 1Filter-Air445 496894 1Nut667 94010 1Screw711 94704 1Air Cleaner Base875 693686 1Filter-Air967 272403 1Air Cleaner Cover968 692502 1Carburetor Shield996 690678 1

40

3328-531 Rev A

Briggs and Stratton 311777-0151-E1Blower Housing Assembly

Ref Part No. Qty. DescriptionFlywheel23 693557 1Flywheel Guard37 690456 1Screen-Rotating73 494439 1Screw-Sem74 94821 1Washer75 225136 1Screw78 94896 1Blower Housing304 690497 1Screw305 690960 1Screw (Fuel Tank)318 692127 1Puller-Flywheel363 19203 1Bracket-Mounting (Front)493 690493 1Bracket-Mounting (Rear)493A 690494 1Spacer668 805402 1Screw-Hex.Head733 94673 1Blower Housing Cover921 692679 1Screw934 94627 1Screw-Torxê969 690365 1Screw969A 690960 1Fan-Flywheel1005 281400 1Retainer-Fan1006 690452 1Emission Label Kit1036 694332 1

41

3328-531 Rev A

Briggs and Stratton 311777-0151-E1Starter Assembly

Ref Part No. Qty. DescriptionMotor-Starter309 693551 1Bolt310 690323 1Brush Set311 497608 1Strap-Starter503 691532 1Drive-Starter510 693699 1Clutch ASM513 398003 1Armature-Starter544 497603 1Screw697 690372 1Clip-Wire729A 691224 1Gear-Pinion783 693713 1Nut797 693167 1Nut-Hex797A 92278 1Cap-Drive801 691429 1Cap-End802 497607 1Starter Housing803 691427 1Retainer1051 263080 1Retainer-Brush1090 691293 1

42

3328-531 Rev A

Briggs and Stratton 311777-0151-E1Carburetor Overhaul Kit Assembly

Ref Part No. Qty. DescriptionSeal-Oil3 391086 0Gasket-Cylinder Head7 692410 0Gasket-Breather9 27803 0Gasket-Crankcase (1/64")12 271916 0Gasket-Crankcase (.005")271997 0Gasket-Crankcase (.009")271996 0Seal-Oil20 291675 0Gasket-Intake51 273650 0

Bushing-Throttle93 281346 0Valve-Choke95 94098 0Pin-Hinge, Float104 231789 0Valve-Needle, Float105 231855 0Seat-Inlet106 231854 0Jet-Main117 232118 0Carburetor Kit121 690191 0Welch Plug Sold In Kit Only127 0Gasket-Bowl, Float137 281165 0Carburetor Nozzle142 232117 0O-Ring176 281106 0Seal-O Ring277 692138 0Washer355 281164 0Gasket Set358 690189 0Seal524 281370 0

Ref Part No. Qty. DescriptionSeal-Choke Shaft634 494453 0Seal-Choke Shaft634A 494455 0Seal-Oil691 491323 0O-Ring842 270920 0Seal-Valve868 499236 0O-Ring Seal943 280801 0Carburetor Gasket Set977 690192 0Seal-Shaft987 281166 0Gasket-Cover, Rocker1022 272475 0Set-Valve Gasket1033 690190 0

43