93433010N GM Flywheel | Genuine Used Part

🔧 Product Description

Genuine GM Marine 14-Inch 168-Tooth Flywheel - Casting Number: 93433010N

A genuine used GM small-block marine flywheel for selected MerCruiser, Volvo Penta, Indmar, PCM and Crusader petrol engines.

The flywheel measures approximately 14 inches in diameter, uses a 168-tooth starter ring and corresponds with the MerCruiser 8M0047213 / 9520001 flywheel family.

⚙️ Key Features

• Genuine GM marine flywheel

• Casting number 93433010N

• Approximately 14-inch outside diameter

• 168-tooth starter ring gear

• Suits selected one-piece rear-main-seal GM engines

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• MerCruiser 222-8M0047213 → Supersedes 222-9520001

• 222-9520001 → Supersedes 222-9520

• GM casting 93433010N associated with this flywheel family

OEM / Related Numbers:

• GM: 93433010N

• MerCruiser: 8M0047213

• MerCruiser: 222-8M0047213

• MerCruiser: 9520001

• MerCruiser: 222-9520001

• MerCruiser: 9520

• Volvo Penta: 3853958

• GM casting: 14091599N

• GM casting: 14088648

• Crusader: 138010

Aftermarket / Verified Equivalents:

• Repower Marine: RM14

• Marine Engines 4 Less: MMR4519S

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

🚤 Compatibility

Commonly used on:

• GM-based MerCruiser petrol engines

• Volvo Penta GM V6 and V8 engines

• Indmar, PCM and Crusader small-block installations

• One-piece rear-main-seal marine engines

Typically suits:

• Engine models:

• GM 4.3L V6 where the matching balance and bolt pattern are specified

• GM 5.0L / 305 CID V8

• GM 5.7L / 350 CID V8

• GM 6.2L / 377 or 383 CID small-block V8

• MerCruiser 5.0L, 5.7L, 350 MAG and 6.2L applications

• Volvo Penta 5.0L and 5.7L applications using 3853958

• HP Range: Engine-output dependent

• Engine Type: GM V6 and small-block V8 petrol marine engine

• Year Range: Approximately 1987 onward, dependent on balance and rear-main-seal design

🔌 Function

The flywheel stores rotational energy, carries the starter ring and transfers crankshaft torque through the engine coupler or marine transmission drive plate.

Common signs of failure:

• Starter teeth are chipped or missing

• Starter motor grinds

• Flywheel has excessive runout

• Cracks around the crankshaft bolts

• Engine vibration increases

• Coupler mounting holes are damaged

• Corrosion around the crankshaft centre bore

📦 Condition

• Genuine used part

• Removed from running engine where applicable

• In good working condition unless otherwise stated