2017 International® A26 Engine Introduction | Study Guide

Course Code: 9014

2017 International® A26 Engine Introduction

Study Guide

©2017 Navistar, Inc. 2701 Navistar Drive, Lisle, IL 60532.

All rights reserved.

No part of this publication may be duplicated or

stored in an information retrieval system without the express written permission of Navistar, Inc.

2017 International® A26 Engine Introduction • © 2017 Navistar, Inc. All rights reserved. All marks are trademarks of their respective owners.

1 2017 International® A26 Engine Introduction | Study Guide

Table of Contents Course Introduction ...................................................................................................................................... 2

Contact Us ................................................................................................................................................. 2

Welcome ................................................................................................................................................... 2

Objectives ................................................................................................................................................. 2

Introduction .................................................................................................................................................. 3

A26 Video .................................................................................................................................................. 3

A26 Nomenclature .................................................................................................................................... 4

Key Components ........................................................................................................................................... 5

Right Side .................................................................................................................................................. 5

Left Side .................................................................................................................................................... 6

Cylinder Head ............................................................................................................................................ 7

Engine 360 ..................................................................................................................................................... 8

Conclusion ................................................................................................................................................... 10

Notes ........................................................................................................................................................... 10



Course Introduction

Contact Us If you have questions or concerns regarding this course, please contact Navistar® Service Education by

submitting a case file (Dealer Personnel), or by calling 1-800-365-0088.

Welcome Welcome to the Navistar training course: 2017 International® A26 Engine Introduction.

This course is intended to introduce parts and service personnel to the 2017 International® A26 Engine.

Objectives Upon completion of this course, the viewer will be able to:

Introduce & identify the 2017 International® A26 Engine

Identify unique components

THE INFORMATION PROVIDED WITHIN THIS COURSE IS FOR TRAINING PURPOSES ONLY. ALWAYS

CONSULT THE LATEST SERVICE, DIAGNOSTIC, AND TOOL INFORMATION, LOCATED ON NAVISTAR’S

SERVICE PORTAL, PRIOR TO PERFORMING SERVICE ON NAVISTAR ENGINES, VEHICLES, AND

EQUIPMENT.



Introduction

A26 Video Introducing a new breed of engine built with UPTIME in its DNA

A26

Born from project alpha

A new way of thinking led by a team of the industry’s best powertrain engineers

Built on a trusted foundation with proven components

Tested to extremes

Hundreds of thousands of hours and millions of real-world miles

Proven to deliver on UPTIME

A leader has emerged

Robust, Efficient, Simple

Up to 5% improvement in fuel economy

Up to 600+ LBS lighter than other big bore engines

A new alpha is here and it’s ready to rule the road



A26 Nomenclature The A26 nomenclature is derived from two parts. “A” for project Alpha, and “26” being shorthand for of

126 millimeter piston diameter.



Key Components

Right Side Engine braking power increased by up to 67% for confident braking, particularly at low to mid RPMs and

at higher altitudes.

Cylinder head design is 50% less restrictive, reducing parasitic loss on the water pump and improving

fuel economy.

New piston assembly features a low friction piston coating for increased fuel economy.

Larger piston pin and connecting rod for optimal load distribution and enhanced durability.

Gear teeth are produced using a grinding process for smoother, harder and quieter gear surfaces.

Single, variable geometry turbocharger simplifies air management and increases fuel economy.



Left Side Stainless steel, laser welded, single stage EGR cooler delivers proven durability and performance, in a

compact, easy to service design.

Oil pan and crankcase are isolated via a specially designed rubber gasket that absorbs vibration before it

can resonate and get amplified through the oil pan.

The composite valve covers are lighter than traditional aluminum valve covers.

Increased computing power of the new engine control module eliminates the need for a separate

aftertreatment control module.

Fuel system produces 2,500 bar of pressure (36,300 psi) which helps to better atomize fuel into an

extremely fine mist, producing more complete, efficient combustion.



Cylinder Head Free breathing intake port geometry.

Lower water jacket cools the flame deck first.

Better flow achieved through the exhaust ports.



Engine 360



Conclusion This concludes the Navistar® training course: 2017 International® A26 Engine Introduction.

Thank you for your participation.

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2017 International® A26 Engine Introduction | Study Guide

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