DIRECT FIT / KEY SELLING POINT: Designed with an offset bolt pattern, this starter motor is a perfect match for Mercruiser, OMC, and Volvo Penta GM 3.0L, 4.3L, and 5.0L engines utilizing a 14-inch flywheel, ensuring hassle-free installation and optimal gear engagement.

Key Features

• ✔ Permanent Magnet Gear Reduction (PMGR): Delivers higher torque and efficiency with a lighter, more compact design.
• ✔ Marine-Grade Construction: Built with robust materials to resist corrosion and wear in saltwater and freshwater conditions.
• ✔ Offset Bolt Pattern: Ensures precise fitment and proper alignment with 14" flywheels on compatible GM marine engines.
• ✔ Optimal Performance: Provides consistent, powerful cranking for quick engine starts every time.
• ✔ Direct Aftermarket Replacement: Meets or exceeds OEM specifications for form, fit, and function.

Technical Specs

Voltage:	12V
Pinion Teeth:	11-Tooth
Rotation:	Clockwise (CW)
Mounting Type:	Bottom Mount, Offset Bolt Pattern (Staggered)
Flywheel Compatibility:	14" Flywheel (often 168-tooth)
Starter Type:	PMGR (Permanent Magnet Gear Reduction)

Make	Engine Size / Model	Year Range	Notes
Mercruiser	3.0L (4-Cylinder)	Approx. 1990-2017	GM-based engines with 14" flywheel
Mercruiser	4.3L (V6)	Approx. 1986-Present (various models)	GM-based engines with 14" flywheel
Mercruiser	5.0L (V8)	Approx. 1987-Present (various models)	GM-based engines with 14" flywheel
OMC	3.0L, 4.3L, 5.0L	Various Years (GM-based)	With 14" flywheel and offset bolt pattern
Volvo Penta	3.0L, 4.3L, 5.0L	Various Years (GM-based)	With 14" flywheel and offset bolt pattern

What does "offset holes" or "offset bolt pattern" mean for a starter motor?

An offset (or staggered) bolt pattern refers to the mounting holes on the starter that are not in a straight line. This design is typically used with larger 14-inch flywheels (often 168-tooth) on GM engines to ensure proper engagement between the starter pinion gear and the flywheel ring gear. It's crucial to match your engine's bolt pattern to ensure correct fitment.

How do I confirm this starter is compatible with my Mercruiser, OMC, or Volvo Penta engine?

To ensure compatibility, first verify that your engine is a GM-based 3.0L, 4.3L, or 5.0L model. Crucially, check the mounting bolt pattern of your existing starter or engine block. If it has an offset (staggered) two-bolt pattern, and uses a 14-inch flywheel, this M1786 starter is likely the correct replacement. Always cross-reference OEM part numbers if available.

What are the advantages of a Permanent Magnet Gear Reduction (PMGR) starter?

PMGR starters like the M1786 offer several benefits over older, conventional starters. They are significantly lighter and more compact, making installation easier in cramped engine compartments. More importantly, they provide higher cranking torque and efficiency, drawing less amperage from your battery while spinning the engine faster for quicker, more reliable starts.