3853958 Volvo Flywheel | Genuine Used Part

🔧 Product Description

Genuine Volvo Penta GM 14-Inch 168-Tooth Flywheel - Part Number: 3853958

A genuine used Volvo Penta flywheel for selected GM-based 4.3L V6 and 5.0L / 5.7L V8 petrol marine engines fitted with a one-piece rear main seal.

The flywheel has a 14-inch diameter and 168 starter teeth and is associated with GM casting 12557590N. It is the Volvo Penta equivalent of the MerCruiser 8M0047213 / 9520001 flywheel family.

⚙️ Key Features

• Genuine Volvo Penta GM flywheel

• 14-inch outside diameter

• 168-tooth starter ring gear

• Suits one-piece rear-main-seal engines

• Compatible with selected Volvo Penta V6 and V8 petrol engines

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 3858694 later or related Volvo Penta flywheel reference

• 3853958 original Volvo Penta flywheel reference

• 857223 related Volvo Penta flywheel reference

OEM / Related Numbers:

• Volvo Penta: 3853958

• Volvo Penta: 3858694

• Volvo Penta: 857223

• GM Casting: 12557590N

• Mercury MerCruiser: 8M0047213

• Mercury MerCruiser: 9520001

• Mercury MerCruiser: 222-8M0047213

• GM: 14088648

• GM: 14091599N

Aftermarket / Verified Equivalents:

• Mopa Motorparts: replacement flywheel 3853958

• Repower Marine: RM14

• Marine Engines 4 Less: MMR4519S

• GM-compatible 14-inch 168-tooth marine flywheel

🚤 Compatibility

Commonly used on:

• Volvo Penta SX and DPS sterndrive engines

• Volvo Penta front-entry flywheel installations

• GM one-piece rear-main-seal marine engines

Typically suits:

• Engine models:

• Volvo Penta 4.3GL

• Volvo Penta 4.3Gi

• Volvo Penta 4.3GXi

• Volvo Penta 4.3OSi

• Volvo Penta 5.0GL

• Volvo Penta 5.0Gi

• Volvo Penta 5.0GXi

• Volvo Penta 5.7GL

• Volvo Penta 5.7Gi

• Volvo Penta 5.7GSi

• Volvo Penta 5.7GXi

• Engines using GM casting 12557590N or Volvo Penta 3853958

• HP Range: Engine-output dependent

• Engine Type: GM 4.3L V6 and 5.0L / 5.7L small-block V8 petrol marine engine

• Year Range: Approximately 1987 onward, dependent on engine configuration

🔌 Function

The flywheel stores rotational energy, provides starter engagement and transfers engine torque through the rubber coupler to the sterndrive input shaft.

Common signs of failure:

• Starter ring teeth are worn or missing

• Starter grinds during engagement

• Cracks around crankshaft bolt holes

• Excessive vibration

• Flywheel mounting face is damaged

• Coupler bolts no longer tighten correctly

• Corrosion around the crankshaft centre bore

📦 Condition

• Genuine used part

• Removed from running engine where applicable

• In good working condition unless otherwise stated