12V PMOSGR Starter Motor for Honda Small Engines GX240 GX270 GX340 GX390
12V PMOSGR Starter Motor for Honda Small Engines GX240 GX270 GX340 GX390
SKU:410-52044
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12V PMOSGR Starter for Honda GX Series
Permanent Magnet Offset Gear Reduction Performance
This premium 12V PMOSGR starter motor is engineered specifically for Honda's range of large-frame GX small engines. Unlike standard direct-drive starters, this offset gear reduction unit utilizes permanent magnets and a precision internal gear set to deliver significantly higher cranking torque with lower battery current draw. It is the ideal replacement for industrial equipment, generators, and high-compression small engine applications.
Key Features
- ✔ High Torque Design: Gear reduction for fast, efficient engine starts.
- ✔ Direct Fit: Seamless installation for GX240 through GX390 engines.
- ✔ Precision Gear: 14-tooth pinion for smooth flywheel engagement.
- ✔ Sealed Construction: Protection against dust, oil, and moisture.
Technical Specs
| Voltage: | 12V |
| Kilowatts (kW): | 0.5 kW |
| Rotation: | CCW (Counter-Clockwise) |
| Pinion Teeth: | 14 Teeth |
| Starter Type: | PMOSGR (Gear Reduction) |
Compatibility / Fitment Guide
| Engine Series | Power Output | Application Notes |
|---|---|---|
| Honda GX240 | 8.0 HP | Common on water pumps |
| Honda GX270 | 9.0 HP | Direct replacement |
| Honda GX340 | 11.0 HP | High torque requirements |
| Honda GX390 | 13.0 HP | Standard Generator/Pump fit |
| Chinese Clones | 11-15 HP | Fits 182F, 188F, 190F engines |
OEM Cross Reference
| Honda OEM | 31210-ZE3-013, 31210-ZE3-023, 31210-ZE2-003, 31210-ZB8-0130 |
| Denso | 128000-2750, 128000-3400, 128000-2240 |
| Lester | 18513, 18984 |
| Other | 410-52044, SND0288, 190-551, ST-18513 |
Questions & Answers
Is this a genuine original part?
This is a premium quality aftermarket replacement part, manufactured by 4Drive to meet or exceed original equipment (OE) standards for fitment and high-torque performance.
How do I know if it is compatible?
We recommend checking the 31210-ZE3-013 SKU or other cross-references. If your engine is a Honda GX240-GX390 (8-13HP) or a 188F/190F clone, this is the correct starter.
What are the benefits of the PMOSGR design?
The Permanent Magnet Offset Gear Reduction (PMOSGR) design provides higher torque at the pinion gear, allowing the engine to turn over faster in cold weather or high-load situations compared to standard starters.
Note: Please verify your original part number against the references above before purchasing. Domain: 4drive.co.uk.
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