Knowledge Base

Technical articles, product literature, installation guides, and reference documents.

Technical Articles

Starters

Difference between Delco Remy CORELESS Reman and normal Reman Starter motor

A 39MT CORELESS Reman Delco Remy Starter is a Delco Remy remanufactured 39MT heavy-duty starter motor sold without a core requirement/core charge.

New Indo Technical Team 2026-05-17
Rotating Electrics

Choosing Between a New Service Unit and a REMAN Unit

A buyer’s guide to alternators and starters — New Service, factory-remanufactured (REMAN), and rebuilt units compared.

New Indo Technical Team 2026-05-14
Starters & Diagnostics

Slow-Cranking Diagnostic Guide — 24V Heavy-Duty 50MT Starters

Step-by-step diagnostic procedure for slow-cranking or extended-cranking complaints on 24V Delco Remy 50MT-series starter motors, including battery load testing…

New Indo Technical Team 2026-05-13
Starters & Diagnostics

Diagnosing Starter Cranking Problems

A systematic approach to diagnosing slow cranking, click/no-crank and no-click/no-crank conditions in heavy-duty starting systems.

New Indo Technical Team 2026-05-13
Troubleshooting

Tech Tip: Common Causes of Voltage Drop

Voltage drop is an all-too-common issue plaguing commercial vehicles. It occurs when there’s a decrease in the amount of available voltage in the cables and con…

Delco Remy Technical team 2026-05-08
Starters & Diagnostics

Diagnosing Starting Systems Equipped with Smart IMS

How to diagnose starting issues on vehicles with Smart Internal Magnetic Switch (IMS) starters, including built-in protection features that can mimic faults.

New Indo Technical Team 2026-05-13
Troubleshooting

Delco Remy Tech Tip: Flashing the Field

Remote sense—a popular feature on many Delco Remy alternators—utilizes a small sense wire that reads the actual battery voltage and signals the regulator to inc…

Delco Remy Technical Team 2026-05-08
Starters & Diagnostics

Electrical Soft-Start: Protecting the Ring Gear

How Delco Remy electrical soft-start reduces ring gear wear by slowly rotating the pinion before full engagement.

New Indo Technical Team 2026-05-13
Starters & Diagnostics

Overcrank Protection: Preventing Thermal Damage

How the built-in overcrank protection circuit breaker on 41MT, 42MT and 39MT starters prevents heat damage during extended cranking.

New Indo Technical Team 2026-05-13
Alternators & Charging

Remote Sense Technology: Why & How

How Remote Sense on Delco Remy alternators compensates for cable voltage drop, reducing battery charge time by up to 50% and cutting warranty claims by 30%.

New Indo Technical Team 2026-05-13
Alternators & Charging

Brushless Alternators: The Brushless Advantage

Why brushless alternators outlast conventional designs — fewer moving parts, no brush dust, and elimination of 10 common failure modes.

New Indo Technical Team 2026-05-13
Alternators & Charging

Oversizing & Selecting the Right Alternator

How to choose the correct alternator mounting style, output rating and design type — and why oversizing improves efficiency and battery life.

New Indo Technical Team 2026-05-13
Alternators & Charging

Heavy-Duty Alternators That Handle the Heat

How the 55SI and 40SI heavy-duty brushless alternators deliver high output in extreme under-hood temperatures for fire trucks, mining and off-highway equipment.

New Indo Technical Team 2026-05-13
Electrical Systems

Internal Magnetic Switch Solenoid (IMSS): Simplifying Installation

How the integrated IMSS design simplifies wiring, improves reliability and withstands temperatures up to 120 °C.

New Indo Technical Team 2026-05-13
Electrical Systems

Battery Maintenance & Proper Charging in Heavy-Duty Systems

Inspection, testing and charging best practices for fleet and mining managers to prevent repeated starter and alternator failures.

New Indo Technical Team 2026-05-13

Documents & Literature

PDF
Installation Guides

How to select a pulley for your Delco Remy Alternator

0.1 MB 2026-05-17
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Datasheets

Nikko Heavy Duty AlternatorService Parts Catalog

19.2 MB 2026-05-14
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Datasheets

Nikko Heavy Duty Starter Service Parts Catalog

18.4 MB 2026-05-14
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Product Catalogs

Denso Heavy Duty Catalog

3.0 MB 2026-05-14
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Product Catalogs

Delco Remy 2025 EMEA Starter & Alternator Application Catalog (Europe)

This is a catalogue of all the European range starter motors and alternators available to replace only starter motors on

1.6 MB 2026-05-11
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General

24 Volt Off-Highway Quick Reference Guide | Delco Remy

Fast Moving Part #: Delco Remy starter and alternators of 24V used in off-highway applications in India

2.9 MB 2026-05-08
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Training

Diagnostic Manual - Delco Remy

Service: Diagnosing issues with Delco Remy starter motor and alternator units fitted on equipments.

1.3 MB 2026-05-08
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Warranty

Delco Remy - Warranty Approval Guide

A document showing what cases are not approved under warranty and why. Failure reasons with photographs which are not a

10.5 MB 2026-05-08
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Installation Guides

Charging Cable Requirements for Delco Remy Off-highway units

Using the correct specification of charging cables to connect your starter motor and alternator to the battery and the e

0.1 MB 2026-05-08
PDF
Warranty

Delco Remy Heavy Duty Starter & Alternator - Troubleshooting Guide

Preliminary steps recommended by Delco Remy to carry out when your starter motor and alternator are not working as per y

0.1 MB 2026-05-08
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Warranty

Delco Remy International Warranty Policy

The International Delco Remy Limited Warranty for Manufacturing Defects as declared by the manufacturer. Details of the

0.2 MB 2026-05-08
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Technical Bulletins

Why should you use a Delco Remy alternator?

Here is a case study and write-up on why Delco Remy alternators perform superior to other alternators in the same segmen

4.0 MB 2026-05-08
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Legacy Documents

19010002 Service Parts Catalog

0.3 MB 2026-05-14
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Legacy Documents

Brush Alternator Service Manual - 1G-286

0.6 MB 2026-05-14
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Legacy Documents

DELCOTRON Transformer Type Alternators - Service Bulletin 1G-280

1.6 MB 2026-05-14
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Legacy Documents

Brushless Alternator Service Manual 1G-500

0.7 MB 2026-05-14
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Product Catalogs

Leece Neville Heavy Duty batteryless Alternators

0.6 MB 2026-05-14
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Legacy Documents

1117805 Service Parts Catalog

0.2 MB 2026-05-14
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Legacy Documents

1117733 Service Parts Catalog

0.2 MB 2026-05-14
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Legacy Documents

50MT Cranking Motors - Service Bulletin 1M-156

1.3 MB 2026-05-14
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Legacy Documents

50MT Cranking Motors - Service Bulletin 1M-153

2.3 MB 2026-05-14
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Legacy Documents

1117647 Service Parts Catalog

0.3 MB 2026-05-14
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Legacy Documents

1117642 Service Parts Catalog

0.3 MB 2026-05-14
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Legacy Documents

10478998 Service Parts Catalog

0.2 MB 2026-05-14
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Legacy Documents

1990483 Service Parts Catalog

0.2 MB 2026-05-14
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Legacy Documents

10478911 Service Parts Catalog

Service Parts catalog for legacy Delco Remy Starter motor to part number 10478911. This unit is obsolete and no longer i

0.3 MB 2026-05-14

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