809995 Mercruiser Rocker Cover | Genuine Used Part

🔧 Product Description

Genuine MerCruiser GM V8 Rocker Cover with Oil Fill - Part Number: 809995

A genuine used MerCruiser rocker or valve cover for GM 5.0L, 5.7L and 6.2L small-block marine V8 engines. Mercury identifies 809995 as the cover with the oil-fill provision. Volvo Penta 3856927 is the strongest direct cross-reference for the oil-fill-side cover, while orientation terminology may differ between engine manufacturers.

⚙️ Key Features

• Genuine Mercury MerCruiser GM V8 rocker cover
• Correct part number 809995
• Includes oil-fill opening
• Centre-bolt small-block configuration
• Cross-brand GM marine replacements available

🚤 Compatibility

Commonly used on

• MerCruiser 5.0L, 5.7L and selected 6.2L V8 engines
• Volvo Penta, OMC, Indmar, PCM, Marine Power and Yamaha GM-based V8s
• Pre-Vortec and Vortec small-block marine engine packages using compatible covers

Typically suits

• MerCruiser 5.0LX / 5.0L EFI / MPI
• MerCruiser 5.7L, 350 MAG, 350 MAG MPI and TowSports
• Selected 6.2L / 377 MAG / Scorpion engines
• Commonly approximately 1989 onward
• Match oil-fill, breather and plug locations rather than side name alone
• Engine Size: 5.0L / 305, 5.7L / 350 and selected 6.2L / 377
• Cover Type: GM small-block centre-bolt with oil fill
• Cross Brand: Volvo Penta 3856927 / Recmar REC14203
• Gasket: 27-17467 / 3852687 / Fel-Pro 17931
• Fitment Requirement: Confirm oil-fill and breather-hole layout

🔌 Function

The cover seals the rocker arms and valve train, provides the engine-oil filling point and supports the crankcase breather components.

⚠️ Common Signs of Failure

• Oil leak around the gasket or filler cap
• Corrosion or perforation
• Warped sealing rail
• Damaged breather grommet
• Incorrect oil-fill-side cover installed

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 809995 established oil-fill-side MerCruiser cover
• Volvo Penta 3856927 is a verified oil-fill cover cross-reference
• 814505A1 is an earlier related MerCruiser valve-cover assembly

OEM / Related Numbers

• 809995
• Volvo Penta 3856927
• 814505A1
• Repower Marine RM-SB-VC
• Recmar REC14203
• 36-18710002 / Volvo 3854008 oil-filler cap
• 27-17467 / Volvo 3852687 centre-bolt cover gasket
• Fel-Pro 17931 gasket

Aftermarket / Verified Equivalents

• Repower Marine RM-SB-VC
• Recmar REC14203
• Marine Engines 4 Less GM marine rocker cover
• Volvo Penta 3856927 genuine cross-brand cover
• GM marine centre-bolt valve cover with matching oil-fill and breather holes

📦 Condition

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