Starter Motor M128R3821SE / M128721 – 24V 12kW 11T SAE1 for Caterpillar | Power Pro Extreme 12
This POWER PRO EXTREME 12 heavy-duty starter motor is designed as a direct replacement for a wide range of Caterpillar and Delco Remy starter models. Engineered for maximum durability and reliable starting performance, it is ideal for industrial, construction, and earthmoving equipment.
⭐ Specifications
| Item | Details |
|---|---|
| Brand | Power Pro Extreme 12 |
| Condition | New |
| Voltage | 24V |
| Output Power | 12 kW |
| Rotation | Clockwise (CW) |
| Pinion Teeth | 11T |
| Pinion Pitch | 6–8 DP |
| Pinion Diameter | 57 mm |
| Pinion Rest Position | 47 mm |
| Polarity | Insulated Return |
| Wet Clutch | Yes |
| Mounting Type | SAE1 (Special) |
| Spigot Diameter | 92 mm |
| Switch Position | 37.5° |
| Jump Start Protection | Yes |
| Product Family | M128 |
| EAN Code | 5052629114175 |
? Replaces the Following Part Numbers (Cross Reference)
Caterpillar:
3T5831, 3T2782, 3T2783, 3T2784, 3T8452, 3T8952,
6T0643, 6V0513, 6V0889, 6V0928,
7T9162, 7N6056, 7N6494, 7N7049,
9G6096, 9G6097,
0R2697, 0R4267, OR4267,
10R1914, 10R9816,
10478850, 10478859,
338-3455, 3383456, 338-3456,
353-7274
Delco Remy:
10465601, 10479342, 10479144, 10479961,
10455855, 10457078, 10461732, 10478823,
10478850 (Rotate nose 307.5° Relay to C), 10478853, 10478855, 10478859,
1109555, 1109781, 1109788, 1109789, 1109833, 1109834, 1109836,
1990233, 1990234 (Rotate nose 307.5° Relay to C),
1990241, 1990291,
1993753,
323-790, 323790,
8200480, 8200543, 8200544, 8200545, 8200578 (Rotate nose 307.5° Relay to C)
Power Pro Extreme 12 (OEM):
M128721, M128R3821SE
? Applications:
Designed for heavy-duty Caterpillar equipment, including:
Caterpillar D8K
Caterpillar D8L
Caterpillar D9L
Other CAT heavy machinery requiring M128-family 24V 12kW starters
