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Wholesale Mercruiser 220-8775 Flywheel Gm 4cyl 120hp 140hp 2.5l 3.0l 2778810 3791021 Up To 45% Off [qlYZfewK]

$26.99 $86.99 -69%

MerCruiser 220-8775 Flywheel: Perfect Fit for Your Engine The MerCruiser 220-8775 Flywheel is a precision-engineered component designed for compatibility with GM 4cyl engines, specifically those with 120hp or 140hp ratings and 2.5L or 3.0L displaceme

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Wholesale Mercruiser 220-8775 Flywheel Gm 4cyl 120hp 140hp 2.5l 3.0l 2778810 3791021 Up To 45% Off [qlYZfewK]

MerCruiser 220-8775 Flywheel: Perfect Fit for Your Engine

The MerCruiser 220-8775 Flywheel is a precision-engineered component designed for compatibility with GM 4cyl engines, specifically those with 120hp or 140hp ratings and 2.5L or 3.0L displacements. This flywheel is crafted to ensure a seamless fit with hub-style couplers, providing a reliable and durable solution for your marine engine. With its stamped part number 2778810, it is an ideal replacement for models interchangeably listed as 3791021 or 03781021.

Key Features and Specifications

This flywheel boasts a substantial 12 3/4" diameter, making it perfect for the specified applications without compatibility issues with V6 or V8 engines. Designed for use from 1970 to 1989, it has been trusted by countless marine enthusiasts for its reliability. Notably, it is compatible only with 2-piece rear man seal engines, which were prevalent before the switch to 1-piece rear main seal engines around 1990. This flywheel has been meticulously cleaned and repainted, ensuring it not only functions effectively but also looks the part. Key specifications include a 153-tooth count and a center hole diameter of 2.5".

Compatibility and Assurance

The MerCruiser 220-8775 Flywheel is a must-have for any boat owner looking to upgrade or maintain their 1969-1989 MerCruiser 120hp 2.5L or 140hp 3.0L engine. With a compatibility list that includes part numbers such as 3781021, 8781021, and 2778809, this flywheel is versatile and widely applicable. If you're uncertain about compatibility or need assistance, feel confident in reaching out for assistance. Your satisfaction is guaranteed, and with this flywheel, you can purchase with peace of mind, knowing you've chosen a high-quality, reliable part for your marine engine.

What Our Customers Say

January 17, 2026

Absolutely no complaints!

A very useful part of my daily life.

- Richard H..

January 17, 2026

Absolutely no complaints!

This is a very nice product.

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January 17, 2026

Absolutely no complaints!

I'm really impressed. Great work!

- Amora T..

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