Cylinder heads for marine engines
Essential engine parts for reliable performance at sea
Maintain your engine's performance with our marine cylinder heads, designed to provide optimal sealing and compression for boat engines.
Key component for marine engines
The cylinder head closes the top of the combustion chambers, ensuring proper compression and engine sealing for reliable performance.
Durable materials for harsh marine use
Available in aluminum or cast iron, our cylinder heads are designed to resist corrosion and harsh marine environments.
Compatible with marine engines
Our cylinder heads are suitable for Volvo, Mercury, Mercruiser, OMC, PCM, and other marine engines, providing durability and optimal performance at sea.
GM 4-6-8 VALVE KEY - FORD
Valve cotter for GM base engine sold individually.
Application :
- 4 cylinders
- 6 cylinders in line and in V
- V8 5 - 5.7 liters - SB
- V8 FORD 5 and 5.8 liters

GM INTAKE VALVE
Intake valve for GM base engine with the following dimensions:
- Head diameter: 49.26mm
- Tail diameter: 8.6mm
- Length: 124.19mm
FORD VALVE SPRING
Single valve spring for base Ford engines.
- External diameter: 35.4mm
- Inner diameter: 25.3mm
- Height: 49.9mm

GM V6 - V8 RIGID VALVE STEM SEAL

VOLVO CYLINDER HEAD SCREWS - 838775
Cylinder head bolt for the following Volvo Penta engines:
AD31, AD31B, AD31D-A, AD31L-A
AD31P-A, AD31XD, AD41A, AD41B
AD41D, AD41L-A, AD41P-A, AQAD30A
AQAD31A, AQAD40A, AQAD40B, AQAD41A
AQD40A, D41A, D41B, D41D
D41L-A, KAD300-A, KAD32P, KAD42A
KAD42B, KAD42P-A, KAD43P-A, KAD44P
KAD44P-B, KAD44P-C, KAMD300-A, KAMD42A
KAMD42B, KAMD42P-A, KAMD43P-A, KAMD44P-A
KAMD44P-C, MD30A, MD31A, MD40A
TAMD30A, TAMD31A, TAMD31B, TAMD31D
TAMD31L-A, TAMD31M-A, TAMD31P-A, TAMD31S-A
TAMD40A, TAMD40B, TAMD41A, TAMD41B
TAMD41D, TAMD41H-A, TAMD41H-B, TAMD41L-A
TAMD41M-A, TAMD41P-A, TAMD42B, TAMD42WJ-A
TD30A, TD31ACE, TD40A, TMD30A
TMD31A, TMD31B, TMD31D, TMD31L-A
TMD40A, TMD40B, TMD40C, TMD41A
TMD41B, TMD41D, TMD41L-A
19 pcs needed for a 4 cylinder engine
27 pcs needed for a 6 cylinder engine

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

YANMAR VALVE STEM SEAL
Yanmar valve stem seal with the following dimensions:
Interior: 12mm
Exterior: 14.7mm
Height: 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.

GM V8 BB VALVE KEY
Valve cotter for GM 7.4 and 8.2 litre V8 engines.

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

GM 4 CYL - V6 - V8 DOUBLE VALVE SPRING
Valve spring with internal reinforcement for GM base engine types V6 and V8 non-Vortec.
- External diameter: 31.04mm
- Inner diameter: 22.05mm
- Height: 51.56mm
BB HP INTAKE VALVE

VOLVO VALVE KEY - 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 CYLINDER HEAD NUT

YANMAR VALVE STEM SEAL

GM181 - GM250 CYLINDER HEAD SCREW
Cylinder head bolt for GM 4 cylinder engine.
10 pieces are needed for a 4 cylinder engine.
