809996 Mercruiser Rocker Cover | Genuine Used Part

🔧 Product Description

Genuine MerCruiser GM V8 Rocker Cover without Oil Fill - Part Number: 809996

A genuine used MerCruiser rocker or valve cover for the opposite side of GM 5.0L, 5.7L and selected 6.2L marine V8 engines. Mercury catalogues identify 809996 as the port-side or non-oil-fill cover. Volvo Penta 3856928 and aftermarket Recmar REC14202 are the closest cross-brand references.

⚙️ Key Features

• Genuine Mercury MerCruiser GM V8 rocker cover
• Correct part number 809996
• Normally supplied without an oil-fill opening
• Centre-bolt small-block configuration
• Cross-references Volvo Penta and Recmar marine covers

🚤 Compatibility

Commonly used on

• MerCruiser 5.0L and 5.7L V8 engines
• Selected MerCruiser 6.2L / 377 V8 engines
• Volvo Penta, OMC, Indmar, PCM and Marine Power GM small-block engines

Typically suits

• 5.0L / 305 and 5.7L / 350 pre-Vortec and Vortec marine engines
• EFI, MPI, carburetted, TowSports and Scorpion variants
• Commonly approximately 1989 onward
• Match the non-fill layout and centre-bolt gasket
• Engine Size: 5.0L / 305, 5.7L / 350 and selected 6.2L / 377
• Cover Type: GM small-block centre-bolt without oil fill
• Cross Brand: Volvo Penta 3856928 / Recmar REC14202
• Gasket: 27-17467 / 3852687 / Fel-Pro 17931
• Fitment Requirement: Confirm breather plugs and opposite-side cover arrangement

🔌 Function

The cover encloses the rocker arms, retains engine oil and supports the breather or blanking grommets on the non-fill side.

⚠️ Common Signs of Failure

• Oil leaking from the centre-bolt gasket
• Cover rusted or perforated
• Warped flange
• Damaged plug or breather hole
• Oil-fill and non-fill covers confused

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 809996 established MerCruiser non-fill cover reference
• Volvo Penta 3856928 is the related cross-brand cover
• Later MerCruiser 8M0086350 is a related non-fill cover on selected engines

OEM / Related Numbers

• 809996
• Volvo Penta 3856928
• MerCruiser 8M0086350
• Recmar REC14202
• 27-17467 / Volvo 3852687 valve-cover gasket
• Fel-Pro 17931 gasket
• 809995 opposite oil-fill cover

Aftermarket / Verified Equivalents

• Recmar REC14202
• Marine Engines 4 Less 3856928 / 8M0086350 replacement
• Volvo Penta 3856928 genuine cross-brand cover
• Repower Marine GM small-block cover family
• GM marine centre-bolt non-fill cover with matching grommet and plug holes

📦 Condition

• Genuine used part
• Removed from running engine or vessel where applicable
• In good working condition unless otherwise stated