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Cummins 3636821 50MT Starter Motor Assembly
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| Rated Voltage | 24V |
|---|---|
| Rated Power | 7.5 kW |
| Starter Series | 50MT |
| Drive Type | Direct Drive |
| Pinion Teeth | 11 |
| Rotation | Clockwise |
| Mounting Type | SAE 3 Bolt Flange |
| Weight | 15.9 kg |
| Manufacturer | Delco Remy |
| Package Dimensions | 40 × 22 × 22 cm |
Manufacturer No.
- 3636821
- 50MT Type 400
- M128R3838SE
OEM Part No.
- 3021038
- 4906788
- 3010125
- 8200209
- 4081236
- 10R1852
- 3L8205
- 3T2780
Engine Part No.
- Cummins KTA19
- Cummins KTA38
- Cummins KTA50
- Cummins NTA855
- Cummins K19
- Cummins N14
- Cummins QSK19
- Caterpillar 3406
- Caterpillar 3176
Interchange No.
- 186396
- 3603868RX
- 3632274
- 3632274RX
- S2654
Fitment Vehicles
- Komatsu PC200-8
- Komatsu PC300-8
- Komatsu PC400-8
- Sinotruk Howo 371
- Caterpillar 777D
- Diesel Generator Sets
- Marine Propulsion Units
The Cummins 3636821 is a 24-volt 50MT series direct-drive starter motor manufactured by Delco Remy (Type 400) for heavy-duty diesel engines. It delivers 7.5 kW cranking power with an 11-tooth pinion and clockwise rotation. Designed for severe-duty cycles in construction, mining, power generation, and heavy truck applications.
OEM cross-references include Cummins 3021038, 4906788, 3010125, 8200209 and Caterpillar 10R1852, 3L8205, 3T2780. Interchangeable with Prestolite M128R3838SE and various aftermarket remanufactured units. Mounting configuration follows SAE 3 bolt pattern standard for large bore engines.
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