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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

Regular price £67.20 GBP
Regular price £80.64 GBP Sale price £67.20 GBP
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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.

RELIABILITY: Built to meet or exceed OEM specifications for cold-weather starting and high-vibration environments.

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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Shipping calculated at checkout. Free shipping over £150. Terms apply