8M0137703 Mercury MerCruiser Manifold Assembly Gimbal Housing | Genuine Quicksilver OEM Part

🔧 Product Description

Genuine Quicksilver Power Trim Line Manifold Assembly - Part Number: 8M0137703

A genuine Quicksilver hydraulic trim-line manifold for selected Mercury MerCruiser gimbal-housing and transom assemblies.

The manifold mounts through the gimbal housing and connects the hydraulic lines from the inboard trim pump to the external trim-cylinder hoses. It distributes pressurised trim fluid between the port and starboard cylinders as the sterndrive is raised or lowered.

⚙️ Key Features

• Genuine Quicksilver OEM power-trim manifold

• Correct current Mercury part number 8M0137703

• Supersedes 8M0080805 and earlier 98825-series assemblies

• Through-transom connection for trim-cylinder hydraulic lines

• Cross-references with Recmar, GLM and FridayParts replacements

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 8M0137703 → Supersedes 8M0080805

• 8M0080805 → Supersedes 98825A4

• 98825A4 → Related to earlier 98825A12 manifold assembly

• 98825 earlier OEM manifold reference

OEM / Related Numbers:

• 8M0137703

• 8M0080805

• 98825A4

• 98825A12

• 98825

• 21970

Aftermarket / Verified Equivalents:

• Recmar: REC8M0080805

• Recmar: RM8M0080805

• GLM: 21970

• FridayParts: FPLJ2410262

🚤 Compatibility

Commonly used on:

• MerCruiser hydraulic power-trim systems

• Gimbal housings and transom assemblies connecting the trim pump to external trim cylinders

Typically suits:

• Drive / transom models:

• MerCruiser MC-I replacement transom applications using the later manifold conversion

• MerCruiser R and MR transom assemblies

• MerCruiser Alpha One - approximately 1983-1990

• MerCruiser Alpha One Gen II - 1991 and above

• MerCruiser Bravo One

• MerCruiser Bravo Two

• MerCruiser Bravo Three

• MerCruiser Bravo X One, X Two and X Three

• MerCruiser Bravo XR One and XR Three

• MerCruiser Bravo XR Sport and SportMaster

• MerCruiser Bravo XR - serial 0M052945 to 0M906877

• MerCruiser Blackhawk transom assemblies

• MerCruiser high-performance and integrated transom systems using 98825A4 or 8M0080805

• Drive Type: MerCruiser Alpha, Bravo, Blackhawk and Racing sterndrive

• System Type: Power-trim hydraulic manifold through the gimbal housing

• Year Range: Approximately 1983 onward, dependent on transom serial number

🔌 Function

The manifold directs hydraulic fluid between the trim pump and both trim cylinders. One circuit raises the sterndrive while the return circuit allows it to lower under controlled hydraulic pressure.

Common signs of failure:

• Trim fluid leaking at the gimbal housing

• Sterndrive raises or lowers slowly

• Trim pump runs but the drive does not move correctly

• Hydraulic fluid becomes aerated

• Corroded, cracked or stripped hose ports

📦 Condition

• Genuine Quicksilver part

• Brand new

• Supplied in original or equivalent packaging