Marine cylinder head parts - Reliable components for your boat
Maintain or repair your boat’s upper engine components
Upper engine parts designed for marine engines
The upper engine components play a vital role in ensuring your boat's engine delivers performance, compression and reliability. We offer a wide selection of robust, marine-grade parts compatible with leading marine engine brands.
Enhance engine lifespan and performance at sea
Our upper engine parts are engineered to withstand corrosion, high temperatures and vibrations common in marine environments. They ensure proper sealing, compression and long-lasting reliability.
Our range of marine upper engine parts
- Cylinder heads and valve covers
- Upper engine gasket sets and head repair kits
- Valves, guides and marine-grade accessories
- Parts compatible with major marine engine brands
Trust our durable marine-grade components to service or rebuild your boat's upper engine for optimal performance at sea.
CLAVETTE DE SOUPAPE GM 4-6-8 - FORD
Clavette de soupape pour moteur base GM vendu à l'unité.
Application :
- 4 cylindres
- 6 cylindres en ligne et en V
- V8 5 - 5.7 litres - SB
- V8 FORD 5 et 5.8 litres

GM INTAKE VALVE
Intake valve for GM base engine with the following dimensions:
- Head diameter: 49.26mm
- Tail diameter: 8.6mm
- Length: 124.19mm
RESSORT DE SOUPAPE FORD
Ressort de soupape simple pour base moteurs Ford.
- Diamètre extérieur : 35.4mm
- Diamètre intérieur : 25.3mm
- Hauteur : 49.9mm

GM V6 - V8 RIGID VALVE STEM SEAL

GM EXHAUST VALVE
Exhaust valve of the following dimensions:
- Head diameter: 38.10mm
- Tail diameter: 8.66mm
- Length: 125.23mm
GM V6 VALVE STEM SEAL

JOINT QUEUE DE SOUPAPE YANMAR
Joint de queue de soupape Yanmar aux dimensions suivantes :
Intérieur : 12mm
Extérieur : 14.7mm
Hauteur : 9.2mm

SIEGE DE SOUPAPE ECHAPPEMENT GM

GM V6 ROLLER ROCKER ARM
Roller rocker arm for 4.3 liter V6 Vortec engine.
Rocker arm with a bearing inside.
GM V8 BB HP DOUBLE VALVE STEM SEAL
Valve stem seal for GM V8 454 or 502 engine with the following dimensions:
Inner diameter - guide: 13.462 mm
Outer diameter: 17.14mm
Valve diameter: 9.53mm
Height: 13mm
Gasket designed for installation with a cylinder head having 2 valve springs.

CLAVETTE DE SOUPAPE GM V8 BB
Clavette de soupape pour moteur V8 GM 7.4 et 8.2litres.

V8 FORD - GM 11/32 RIGID VALVE STEM SEAL
Inner diameter 12.9mm
Valve diameter 8.8mm
Height 12.5mm
GM V8 BB VALVE STEM SEAL - GM496 RIGID
Valvetail joint of dimensions:
Inside: 16mm
Exterior: 19mm
Height: 12mm
Sold individually.

RESSORT DE SOUPAPE DOUBLE GM 4 CYL - V6 - V8
Ressort de soupapes avec renfort intérieur pour moteur base GM de types V6 et V8 non Vortec.
- Diamètre extérieur : 31.04mm
- Diamètre intérieur : 22.05mm
- Hauteur : 51.56mm
CHROME SCREW OIL CAP

BB HP INTAKE VALVE

CLAVETTE DE SOUPAPE VOLVO - 861703

GM V6 - V8 SOFT VALVE STEM SEAL
Valve stem seal.
VOLVO 91MM CYLINDER HEAD SCREWS - 3580483
Cylinder head screws for the following Volvo Penta engines:
MD2040A, MD2040B, MD2040C, MD2040D
D2-50F
D2-55A, D2-55B, D2-55C,
D2-55D, D2-55E, D2-55F
D2-60F
D2-75A, D2-75B, D2-75C, D2-75F
11 or 14 pieces required depending on engine application.

GM V8 BB RIGID VALVE STEM SEAL
Rigid valve stem seal for GM BB engine with single valve spring.
Dimensions:
Height 20.5mm
Bottom diameter: 22mm
Top diameter: 21mm
Valve diameter: 9mm
Inner diameter: 17.5mm - 20mm

YANMAR VALVE STEM SEAL

RESSORT DE SOUPAPE DOUBLE BB HP
Ressort de soupape double avec renfort métal disposant des dimensions suivantes :
- Ressort extérieur :
- Diamètre extérieur : 37mm
- Diamètre intérieur : 27mm
- Hauteur : 57.5mm
- Ressort intérieur :
- Diamètre extérieur : 25mm
- Diamètre intérieur : 18mm
- Hauteur : 54mm

YANMAR 6LP VALVE STEM SEAL
GM 454 GV-VI ROCKER ARM
Rocker arm for GM 454 and 502 generation V and VI engines.
