Description
The Power Products SR-39-115C is a premium aftermarket 39MT starter motor designed for heavy-duty Class 8 trucks and severe-service applications. This 12-volt starter features integrated over-crank protection (OCP), a rotatable flange for flexible installation, and electrical soft-start technology for smooth ring gear engagement. Engineered to meet or exceed OEM specifications, this starter delivers reliable cold-weather performance on Cummins, Caterpillar, Detroit Diesel, and Mack engines up to 16 liters.
Signs You Need a New Starter
- Slow or labored cranking, especially in cold weather
- Clicking sound when turning the key with no engine engagement
- Intermittent no-start conditions or delayed starter response
- Grinding or whining noise indicating worn pinion or ring gear
- Starter stays engaged after engine starts (solenoid sticking)
- Smoke or burning smell from starter during cranking attempts
Specifications
| Manufacturer | Power Products |
|---|---|
| Part Number | SR-39-115C |
| Model | 39MT |
| Condition | New |
| Voltage | 12V |
| Power Rating | 7.3 kW |
| Mounting Type | SAE 3 |
| Pinion Teeth | 11 |
| Pinion Pitch | 6/8 |
| Solenoid Position | 82° |
| Rotation | Clockwise (CW) |
| Polarity | Insulated |
| Over Crank Protection | Yes |
| Re-Clockable Flange | Yes |
| Wet Clutch Seal | Yes |
| Weight | 33.21 lbs (15.1 kg) |
Cross References
This part replaces or is equivalent to the following part numbers:
- Delco Remy: 8200308, 8200289, 8200290, 8200088, 8200411, 8200428, 8200647, 8300009, 8300019, 19011505, 19011516, 19011517, 19011521, 19011530, 19011531
- Caterpillar: PR5347, 4N-1064
- Cummins: 132798, 147334, 167497, 178047, 195829, 195834, 554998, 3603863, 3604655RX
- International/Navistar: 3815734C91
- Ford: C8TF11000B, F7HZ11002D
- Volvo: 21942883, 22398232, 85109605
- Mitsubishi: VV0776, VV0977, IN1478, FL0579
- Leece Neville: M110603
- Denso: 428000-4420, 428000-4430, 2820108, 2820115
- Paccar: D61-6002-004, D61-6005-003
- Iskra/Letrika: IS-1178, AZG4642
Engine Compatibility
This starter fits engines up to 16 liters including:
- Cummins ISX, ISX15, X15
- Cummins ISM
- Caterpillar C10, C11, C12, C13, C15
- Detroit Diesel Series 60
- Mack E7
- Mercedes MBE 4000
Applications
This starter fits a wide range of heavy-duty trucks including:
- Freightliner (various models)
- Kenworth T600, T660, T680, T800, T880, W900
- Peterbilt 385, 386, 387, 389, 579, 587
- Volvo VN, VNL, VNM Series
- Mack Granite, Pinnacle, Vision
- International 9200, 9400, ProStar, LoneStar
- Western Star 4900 Series
- Sterling A-Line, L-Line Series
Verify your engine serial number and configuration before ordering to confirm fitment.
