Denso P8.0 Style Starter Motor 12V 11T for Cummins Caterpillar Heavy Duty 18577
Denso P8.0 Style Starter Motor 12V 11T for Cummins Caterpillar Heavy Duty 18577
SKU:410-52429
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Heavy Duty Starter Motor
Denso P8.0 / 40MT Style | 12V 5.5kW | 11-Tooth Pinion
Engineered for maximum cranking power and long-term reliability, this Denso P8.0 Series (40MT Style) Starter Motor is the professional choice for heavy-duty commercial vehicles. Designed to withstand the most demanding environments, it provides consistent ignition for high-displacement diesel engines including Cummins and Caterpillar applications.
This unit features a high-torque 5.5kW motor and a precision-machined 11-tooth pinion gear. As a direct aftermarket replacement for the Lester 18577, it offers an exact fit and OE-spec performance without the premium manufacturer price tag.
Key Features
- ✔ High Torque: 5.5kW (7.37HP) output for reliable cold starts.
- ✔ Heavy Duty: Planetary gear reduction for improved efficiency.
- ✔ OE Compatibility: Built to meet or exceed original equipment standards.
- ✔ Durability: Sealed construction to resist dust, oil, and moisture.
Technical Specs
| Voltage: | 12V |
| Power: | 5.5 kW / 7.37 HP |
| Rotation: | Clockwise (CW) |
| Tooth Count: | 11-Tooth Pinion |
| Series: | Denso P8.0 / 40MT |
Vehicle Fitment Guide
| Primary Engine / Make | Common Models | Application |
|---|---|---|
| Cummins / Caterpillar | Heavy Duty Class 8 | Trucks & Industrial |
| Freightliner / Kenworth | Various 12V Systems | Commercial Transport |
| Peterbilt / Western Star | Various 12V Systems | Commercial Transport |
OEM Part Number Cross Reference
| Denso: 428000-1450, 428000-1451 | Lester: 18577 |
| Wilson: 91-29-5660 | J&N: 410-52317 |
| Arrowhead: SND0625 | Industry Style: 40MT |
Frequently Asked Questions
Will this fit my 24V system?
No, this specific unit (18577) is designed for 12-Volt electrical systems only. Please verify your system voltage before ordering.
Is this a genuine Denso unit?
This is a premium aftermarket replacement part manufactured by Aftermarket / Moto-Electrical, designed to meet or exceed original Denso P8.0 series specifications.
Note: Please verify your vehicle model and year before purchasing.
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