Valve cover gaskets

MerCruiser valve cover gaskets - Valve Cover Gaskets

MerCruiser valve cover gaskets ensure the oil seal between the cylinder head and valve cover on V-6 and V-8 engines. Precisely fitting valve cover gaskets prevent oil and dirt from entering the valve train and ensure reliable engine protection. Selection according to OEM reference number, engine type and year of manufacture guarantees a precise fit and long service life in marine applications.

Valve cover gasket for GM 2.5L / 3.0L, MD806452
Valve cover gasket for GM 2.5L / 3.0L, MD806452
article nr.02419

Mercruiser ref. no.: 27-806452, 8M0171141 and Volvo Penta ref. no. 3852693

17,15 EUR
(1)
incl. 19% VAT
Lieferung Fri 07. Aug - Tue 11. Aug 2026 **
24 months statutory warranty
Valve cover gasket for 4.3L V6, MD8M0077607
Valve cover gasket for 4.3L V6, MD8M0077607
article nr.02445

for 4.3L V6 engine with metal valve cover.
Mercruiser ref. no. 8M0077607, Volvo Penta ref. no. 3854300

26,08 EUR
incl. 19% VAT
Lieferung Fri 07. Aug - Tue 11. Aug 2026 **
24 months statutory warranty
Original spare part
Valve cover gasket for MCM 3.0L from 1998, 851040
Mercury-Mercruiser-Quicksilver
Valve cover gasket for MCM 3.0L from 1998, 851040
article nr.04714

Mercruiser no. 27-851040, 8M0171141

27,23 EUR
incl. 19% VAT
Lieferung Fri 07. Aug - Tue 11. Aug 2026 **
24 months statutory warranty
Valve cover gasket for 4.3L V6, Vortec 3854942
Fel-Pro
Valve cover gasket for 4.3L V6, Vortec 3854942
article nr.09907

for 4.3L V6 engine with metal valve cover.
Mercruiser ref. no. 11988, 27-827154, 27-828154, 827154, Volvo Penta ref. no. 3854942, OMC: 3854942

39,80 EUR
incl. 19% VAT
Lieferung Fri 07. Aug - Tue 11. Aug 2026 **
24 months statutory warranty
Original spare part
Valve cover gasket for Mercruiser GM 5.0L / 5.7L, MD11999
Mercury-Mercruiser-Quicksilver
Valve cover gasket for Mercruiser GM 5.0L / 5.7L, MD11999
article nr.02480

for Mercruiser models with side screw connection.
Mercruiser Ref. no. 27-11999

30,44 EUR / Piece
incl. 19% VAT
Lieferung Fri 07. Aug - Tue 11. Aug 2026 **
24 months statutory warranty
Valve cover gasket for Mercruiser 3.7L 224CDI, MD73666
Valve cover gasket for Mercruiser 3.7L 224CDI, MD73666
article nr.02467

Mercruiser ref. no. 27-73666

28,88 EUR / Piece
incl. 19% VAT
Lieferung Fri 07. Aug - Tue 11. Aug 2026 **
24 months statutory warranty
Original spare part
Valve cover gasket for Ford 5.0L / 5.8L, 56173
Mercury-Mercruiser-Quicksilver
Valve cover gasket for Ford 5.0L / 5.8L, 56173
article nr.02493

Mercruiser ref. no. 27-56173, Volvo Penta / OMC ref. no. 3852818

13,71 EUR
incl. 19% VAT
Lieferung Fri 07. Aug - Tue 11. Aug 2026 **
24 months statutory warranty
Rubber seal Transom OMC , MD3130800
Rubber seal Transom OMC , MD3130800
article nr.09735

Mercruiser ref. no.: 802444 and Bombardier 0313080, 313080

66,26 EUR
incl. 19% VAT
Lieferung Fri 07. Aug - Tue 11. Aug 2026 **
24 months statutory warranty
Displaying 1 to 8 (of 8 products)
  • Over 15 years’ experience in the marine spare parts trade
    Over 15 years’ experience in the marine spare parts trade
  • Official Mercury & MerCruiser dealer
    Official Mercury & MerCruiser dealer
  • A wide range of boat engine spare parts from A to Z
    A wide range of boat engine spare parts from A to Z
  • Spare parts for Volvo Penta, MerCruiser, Yamaha, Honda, Suzuki and more
    Spare parts for Volvo Penta, MerCruiser, Yamaha, Honda, Suzuki and more
  • Fast delivery for maintenance, servicing and repairs
    Fast delivery for maintenance, servicing and repairs
  • Order boat spare parts conveniently online 24/7
    Order boat spare parts conveniently online 24/7

Function of valve cover gaskets in the MerCruiser engine

Valve cover gaskets seal the connection between the valve cover and cylinder head. They prevent

  • Oil loss from the valve train

  • Ingress of dirt and water

  • Oiling of ignition or sensor areas

  • Engine faults due to reduced lubrication

Valve cover gaskets make a significant contribution to operational reliability and engine service life.

Valve cover gaskets for V6 and V8 engines

The Marine-Discount24 range includes various valve cover gaskets for typical MerCruiser engine variants:

  • 4.3 L V6 gasket set - MerCruiser Ref. 8M0077607 for 4.3 L V6 models.

  • GM 2.5 L / 3.0 L gasket - suitable for 2.5 L and 3.0 L 4-cylinder engines.

  • V8 valve cover gaskets - MerCruiser Ref. 27-11999 for 5.0 L and 5.7 L V8 models.

  • 3.7 L 224 CID gasket - available for 3.7 L 4-cyl. models.

The product variety covers common MerCruiser engine sizes and enables a targeted selection.

OEM references & engine type assignment

The most reliable identification is via OEM reference numbers in conjunction with:

  • Engine type (V6, V8)

  • Displacement and serial number

  • Year of manufacture and valve train version

This minimizes incorrect orders and ensures that the gasket matches the valve cover geometry.

Material & sealing principle

Valve cover gaskets are typically made from elastic, oil and heat-resistant materials, e.g:

  • High quality rubber elastomers

  • Multi-layer composite materials

  • Reinforced sealing lips

These properties ensure permanent sealing under thermal and mechanical loads.

Installation & assembly instructions

When replacing valve cover gaskets, we recommend

  • Complete removal of old gasket residues

  • Careful cleaning of the sealing surfaces

  • controlled alignment of the gasket on the cylinder head

  • uniform tightening of the valve cover bolts according to the manufacturer's specifications

Failure to clean the sealing surfaces or uneven screw guidance can quickly lead to leaks.

Typical leaks & fault symptoms

Defective valve cover gaskets are manifested by

  • Visible traces of oil on the valve cover

  • Oil mist in the engine compartment

  • Smell of burnt oil

  • Loss of power due to lubrication problems

Regular visual and functional checks increase the reliability of the engine.