Technical articles, product literature, installation guides, and reference documents.
A 39MT CORELESS Reman Delco Remy Starter is a Delco Remy remanufactured 39MT heavy-duty starter motor sold without a core requirement/core charge.
A buyer’s guide to alternators and starters — New Service, factory-remanufactured (REMAN), and rebuilt units compared.
Step-by-step diagnostic procedure for slow-cranking or extended-cranking complaints on 24V Delco Remy 50MT-series starter motors, including battery load testing…
A systematic approach to diagnosing slow cranking, click/no-crank and no-click/no-crank conditions in heavy-duty starting systems.
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…
How to diagnose starting issues on vehicles with Smart Internal Magnetic Switch (IMS) starters, including built-in protection features that can mimic faults.
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…
How Delco Remy electrical soft-start reduces ring gear wear by slowly rotating the pinion before full engagement.
How the built-in overcrank protection circuit breaker on 41MT, 42MT and 39MT starters prevents heat damage during extended cranking.
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%.
Why brushless alternators outlast conventional designs — fewer moving parts, no brush dust, and elimination of 10 common failure modes.
How to choose the correct alternator mounting style, output rating and design type — and why oversizing improves efficiency and battery life.
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.
How the integrated IMSS design simplifies wiring, improves reliability and withstands temperatures up to 120 °C.
Inspection, testing and charging best practices for fleet and mining managers to prevent repeated starter and alternator failures.