M1786 Mercruiser OMC Volvo 3.0 4.3 5.0 Marine Starter Motor Offset Holes GM Eng - 4Boats

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£107.00

Tax included.

Marine Starter Motor M1786

Name: MerCruiser OMC Volvo Marine Starter Motor Offset Holes 3.0 4.3 5.0 5.7 M1786
Price: 107.0 GBP
Rating: 5.0 (1 reviews)

Premium High-Torque PMGR Replacement

This M1786 marine starter motor is a high-performance, permanent magnet gear reduction (PMGR) unit designed for GM-based MerCruiser, OMC, and Volvo Penta engines. Engineered to provide superior cranking torque while drawing less current from your battery, it is an ideal upgrade or replacement for older, heavier direct-drive starters.

RELIABILITY: SAE J1171 certified for marine use, featuring ignition protection and a corrosion-resistant finish for long-lasting performance in harsh saltwater environments.

Key Features

✔ High-Torque PMGR: Better starts, less drain.
✔ Offset Mounting: Fits 14" (168-tooth) flywheels.
✔ Ignition Protected: Meets SAE J1171 standards.
✔ Direct Fit: Replaces Delco PG260M & older 10MT units.

Technical Specs

Voltage:	12V
Power Output:	1.7 kW (~2.3 hp)
Rotation:	Clockwise (CW)
Teeth on Drive:	11-Tooth
Mounting Pattern:	Offset / Staggered
Starter Type:	PMGR

Compatibility / Fitment Guide

Make/System	Model/Application	Notes
MerCruiser	3.0L, 3.0LX, 4.3L V6, 5.0L & 5.7L V8	Fits models 1990-Up
Volvo Penta	3.0, 4.3, 5.0, 5.7 (GM Blocks)	PMGR Staggered Mount
OMC Cobra	3.0L, 4.3L, 5.0L, 5.7L	Staggered Bolt Pattern
Caterpillar	Agricultural & Industrial (1998–2007)	GM-Pattern Industrial

OEM Cross Reference

MerCruiser / Mercury	50-806964A2, 50-806964A3, 50-806964A4, 50-812428A2, 50-863030T1
Volvo Penta	3587625-10, 3854751, 3856004, 3860764, 3850526, 3855882
OMC	3854751, 3856004, 3850526, 3855882, 3856003
Sierra / Arco	18-5913 / 30124, 30460
Other Refs	Delco 9000839, 9000840, 9000884; Lester 6791

Questions & Answers

Is this a genuine original part?

This is a premium quality aftermarket replacement part, manufactured to meet or exceed original equipment (OE) standards for fitment and performance.

How do I know if it is compatible?

We recommend checking the SKU/MPN and Cross Reference list provided above. If your original part number matches any of these, it is a guaranteed fit.

What is the difference between Offset and Inline holes?

Offset (or staggered) holes are designed for the larger 14-inch (168-tooth) flywheel commonly found on 3.0L, 4.3L, 5.0L, and 5.7L GM-based engines. If your current starter uses two bolts that are NOT aligned in a straight line, this M1786 unit is the correct replacement.

Note: Please verify your original part number against the references above before purchasing. Distributed by 4Boats / 4boats.co.uk.

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MerCruiser OMC Volvo Marine Starter Motor Offset Holes 3.0 4.3 5.0 5.7 M1786