Starter Motor
42MT Series
The benchmark straight-drive starter for heavy commercial diesel engines.
Delco Remy
Overview
The 42MT is Delco Remy's flagship heavy-duty straight-drive starter for on-highway and off-road commercial applications, available in 12V (7.3 kW) and 24V (8.0 kW). It cranks up to 10.5% faster than competing starters and is built to start large-displacement diesel engines reliably across all temperature conditions. A semi-solid-link solenoid and optional Over-Crank Protection make it one of the most robust and abuse-tolerant starters in its class.
Key Features
- 12V at 7.3 kW and 24V at 8.0 kW peak output
- Starts engines up to 14.8L (12V) and 16.0L (24V) displacement
- Wound field, straight-drive motor with two-piece rotatable drive housing (12 or 24 positions)
- Semi-Solid Link solenoid — minimises contact degradation and connection failure
- Optional Over-Crank Protection guards against low battery, voltage spikes, and operator misuse
- Optional jump-start protection (SAE J1493 compliant)
Applications
- Transit and intercity buses (Caterpillar, Cummins engines)
- Long-haul and vocational heavy trucks
- Construction and off-road heavy equipment
- Agricultural machinery with large-displacement diesels
- Emergency and municipal service vehicles
Interested in these products?
Select products below and add to your enquiry list, or send us your requirements.
Send RequirementsProducts in the 42MT Series (30)
| SKU | Voltage | Power | Pinion | Mount Type | Stock | Actions |
|---|---|---|---|---|---|---|
| 10478943 | 24V | 7.6 kW | — | — | Discontinued | View |
| 10478998 | 24V | 8.0 kW | 11 | SAE 3 | Limited Stock1 | View |
| 10479010 | 24V | 8.0 kW | 11 | SAE 3 | Available to Order | View |
| 10479130 | 24V | 8.0 kW | 11 | SAE 3 | Available to Order | View |
| 10479228 | 24V | 8.0 kW | 12 | SAE 3 | Available to Order | View |
| 1990366 | 24V | 8.0 kW | 12 | SAE 3 | Available to Order | View |
| 1990406 | 12V | 7.3 kW | 12 | SAE 3 | Available to Order | View |
| 1990413 | 24V | 8.0 kW | 12 | SAE 3 | Available to Order | View |
| 1990418 | 24V | 8.0 kW | 11 | SAE 3 | Available to Order | View |
| 1990447 | 24V | 8.0 kW | 11 | SAE 3 | Limited Stock1 | View |
| 1990453 | 24V | 8.0 kW | 12 | SAE 3 | Available to Order | View |
| 1990483 | 12V | 7.3 kW | 11 | SAE 3 | Available to Order | View |
| 1990489 | 12V | 7.3 kW | 11 | SAE 3 | Available to Order | View |
| 1990490 | 12V | 7.3 kW | 11 | SAE 3 | Available to Order | View |
| 1993788 | 24V | 8.0 kW | 11 | SAE 3 | Available to Order | View |
| 1993796 | 24V | 8.0 kW | 12 | SAE 3 | Available to Order | View |
| 1993940 | 24V | 8.0 kW | 12 | SAE 3 | Available to Order | View |
| 8200068 | 24V | 8.0 kW | 12 | SAE 3 | Available to Order | View |
| 8200253 | 12V | 7.3 kW | 12 | SAE 3 | Discontinued | View |
| 8200517 | 24V | 8.0 kW | 12 | SAE 3 | Available to Order | View |
| 8200529 | 24V | 8.0 kW | 12 | SAE 3 | Available to Order | View |
| 8200755 | 24V | 8.0 kW | 13 | SAE 3 | Discontinued | View |
| 8200870 | 24V | 8.0 kW | 11 | SAE 3 | Available to Order | View |
| 8200957 | 24V | 8.0 kW | 12T | SAE 1 | Available for Allocation | View |
| 8200986 | 24V | 8.0 kW | 12 | SAE 3 | Available to Order | View |
| 8201067 | 24V | 8.0 kW | 12 | SAE 3 | Available to Order | View |
| 8201119 | 24V | 8.0 kW | 12 | SAE 3 | Available to Order | View |
| 8300000 | 12V | 7.3 kW | 11 | SAE 3 | Available to Order | View |
| 8300001 | 12V | 7.3 kW | 11 | SAE 3 | Available to Order | View |
| 8300002 | 12V | 7.3 kW | 11 | SAE 3 | Available to Order | View |