8M0063382 | Genuine OEM Mercury Power Steering Cylinder

The Genuine OEM Mercury Marine 8M0063382 Power Steering Cylinder is a hydraulic steering actuator designed for compatible Mercury MerCruiser sterndrive systems. This assembly uses hydraulic assistance to reduce steering effort and provide controlled steering movement during boat operation.

Designed for compatible MerCruiser DHB power steering configurations, the Mercury 8M0063382 steering cylinder is associated with Alpha One Gen II and Bravo sterndrive applications.

PRODUCT INFORMATION

• Part Number: 8M0063382

• Brand: Mercury Marine / MerCruiser

• Condition: Not specified

• Component: Power Steering Cylinder Assembly

• Part Type: Hydraulic Steering Actuator

• Steering System: MerCruiser DHB Power Steering

• Application: Marine Sterndrive Steering Systems

• Drive Compatibility: Selected Alpha One Gen II and Bravo Models

• Manufacturer: Mercury Marine

• Replacement Part Number: 8M0208402

• Intermediate Replacement Reference: 8M0146217

• Associated OEM References: 806034A1, 865383A02, 866200A01

• GTIN: 745061705586

• Hydraulic Fluid: Follow Mercury Marine service specifications

• Mounting Configuration: Application-specific

• Engine Applications: Compatible MerCruiser power packages; verify by serial number

• Fuel Type: Not applicable; hydraulic steering component

APPLICATIONS

The Mercury Marine 8M0063382 Power Steering Cylinder is designed for selected MerCruiser sterndrive applications equipped with the appropriate DHB power steering system.

Compatible application families include:

• MerCruiser Alpha One Gen II Sterndrive Systems

• MerCruiser Bravo One Sterndrive Systems

• MerCruiser Bravo Two Sterndrive Systems

• MerCruiser Bravo Three Sterndrive Systems

• Selected Mercury MerCruiser Marine Engine and Sterndrive Packages

Mercury's application guides identify this cylinder for compatible 1994 and newer Alpha One Gen II and Bravo configurations.

Important: Not every drive or steering system within these families uses the same cylinder. Confirm the original part number, drive model, steering configuration, and engine or drive serial number before purchasing.

FUNCTION

The Mercury 8M0063382 Power Steering Cylinder provides hydraulic assistance to the marine steering system.

When the operator turns the steering wheel, the power steering system directs hydraulic pressure to assist movement of the steering mechanism, reducing manual effort and improving steering response.

A worn, damaged, or failing power steering cylinder may cause symptoms such as:

• Increased steering wheel effort

• Hydraulic fluid leakage around the cylinder

• Inconsistent or jerky steering response

• Reduced steering assistance

• Excessive steering play or irregular movement

• Difficulty steering under load

WHY REPLACE A POWER STEERING CYLINDER?

A defective power steering cylinder can reduce steering assistance and interfere with predictable vessel handling.

Replacing a leaking, worn, or damaged cylinder with the correct Mercury Marine 8M0063382 assembly helps restore intended hydraulic steering operation when the surrounding steering system is functioning correctly.

Maintaining the marine power steering system is essential for reliable maneuverability, operator control, and safe vessel operation.

FITMENT INFORMATION

The Mercury 8M0063382 Power Steering Cylinder requires verification of the complete marine steering configuration.

Before purchasing, confirm:

• Original OEM Part Number: 8M0063382

• Replacement Reference: 8M0208402

• Boat and engine model

• MerCruiser sterndrive model

• Engine and sterndrive serial numbers

• DHB power steering system compatibility

• Hydraulic hose and fitting arrangement

• Cylinder mounting and linkage configuration

• Original steering actuator design

If you are unsure whether this power steering cylinder fits your boat, please contact us with your MerCruiser engine or sterndrive serial number, drive model, and original part number before ordering.

Installation Note: Hydraulic steering repairs should follow Mercury Marine service procedures. Verify fluid specifications, inspect hydraulic lines and fittings, remove air from the system as required, and test steering operation before returning the vessel to service.

GENUINE MERCURY MARINE PART

Mercury Marine manufactures marine propulsion and steering components for recreational and commercial boating applications.

The Genuine OEM Mercury Marine 8M0063382 Power Steering Cylinder is designed for compatible MerCruiser power steering systems, helping maintain original steering performance and proper hydraulic operation when correctly matched and installed.