Valve Stem Seals for Marine Engines
Oil Control and Seal at the Valve Stem
What is a valve stem seal?
A valve stem seal prevents engine oil from leaking into the intake or exhaust ports by sealing around the valve stem. It ensures efficient combustion and reduced oil consumption.
When should it be replaced?
Replace if there is excessive oil use, blue smoke from exhaust, or during any cylinder head service.
Marine-grade performance
DAM Marine offers high-temperature valve stem seals resistant to oil, heat, and corrosion, compatible with Volvo Penta, Yanmar, Mercruiser, OMC and more.
GM V6 - V8 RIGID VALVE STEM SEAL

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

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.

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.

VOLVO VALVE STEM SEAL - 21501189
Valve spring for the following Volvo Penta engines:
2001, 2002, 2003, 2001AG, 2001B, 2001BG, 2002AG. 2002B, 2002BG, 2002D, 2003 SOLAS , 2003 TB SOLAS . 2003B, 2003B SOLAS , 2003BG, 2003D, 2003T, 2003TB. AD31, AD31B, AD31D-A, AD31L-A, AD31P-A, AD31XD. AD41A, AD41B, AD41D, AD41L-A, AD41P-A, AQAD31A. AQAD41A, D12C MH, D12C-A MP, D12D-A MG, D12D-A MH. D12D-A MP, D12D-B MH, D12D-B MP, D12D-C MP. D12D-D MP, D12D-E MG, D12D-E MH, D12D-E MP. D12D-F MP, D12D-G MH, D12D-G MP, D12D-H MP. D41A, D41B, D41D, D41L-A, D9A2A, D9A2B, D9A2C. D9A2D, D9A2E, D9A2F, D9A2G, D9A2H, D9A2I, D9A2J. D9A2K, D9A2L MH, D9A2M MP, KAD32P, KAD42A, KAD42B. KAD42P-A, KAD43P-A, KAMD42A, KAMD42B, KAMD42P-A. KAMD43P, KAMD43P-A, KAMD43P-B, MD31A, TAD1240GE. TAD1241GE, TAD1242GE, TAD1242VE, TAD1250VE, TAD1251VE. TAD1252VE, TAD740GE, TAD741GE, TAD940GE, TAD940VE. TAD941GE, TAD941VE, TAD942VE, TAD943VE, TAD950VE. TAD951VE, TAD952VE, TAMD31A, AMD31B, TAMD31D. TAMD31L-A, TAMD31M-A, TAMD31P-A, TAMD31S-A, TAMD41A. TAMD41B, TAMD41D, TAMD41H-A, TAMD41H-B, TAMD41L-A. TAMD41M-A, TAMD41P-A, TAMD42B, TAMD42WJ-A. TAMD63L-A, TAMD63P-A, TAMD74A, TAMD74A-A, TAMD74A-B. TAMD74C-A, TAMD74C-B, TAMD74L-A, TAMD74L-B, TAMD74P-A. TAMD74P-B, TAMD75P-A, TD31ACE, TD610G, TD610V. TD630VE, TD640VE, TD730ME, TD730VE, TMD31A, TMD31B. TMD31D, TMD31L-A, TMD41A, TMD41B, TMD41D, TMD41L-A. TWD1240VE, TWD610G, TWD610V, TWD630VE, TWD730ME. TWD731ME, TWD731VE, TWD740GE, TWD740VE

GM V6 - V8 SOFT VALVE STEM SEAL
Valve stem seal.
GM V6 - V8 MPI RIGID VALVE STEM SEAL
Rigid valve stem seal with the following dimensions:
Height: 12.8mm
Outer diameter: 17mm
Inner diameter: 14mm
Valve diameter: 8mm

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

YANMAR 6LP VALVE STEM SEAL
YANMAR VALVE STEM SEAL

FORD V8 RIGID VALVE STEM SEAL

YANMAR VALVE STEM SEAL

GM V8 6L RIGID EXHAUST VALVE STEM SEAL
Rigid valve stem seal with the following dimensions:
Height: 12.5mm
Outer diameter: 17mm
Inner diameter: 14mm
Valve diameter: 7.8mm

VOLVO D4-D6 VALVE STEM SEAL
Intake and exhaust valve stem seal for Volvo Penta D4 - D6 series engines.

JOINT QUEUE DE SOUPAPE VOLVO - 1306630
Joint de queue de soupapes admission et échappement Volvo.

YANMAR VALVE STEM SEAL

YANMAR VALVE STEM SEAL

GM V8 6L RIGID INTAKE VALVE STEM SEAL
Rigid valve stem seal with the following dimensions:
Height: 22.5mm
Outer diameter: 16.5 / 20 / 30mm
Inner diameter: 12.5 / 18mm
Valve diameter: 7.5mm

VM MERCRUISER VALVE STEM SEAL

YANMAR VALVE STEM SEAL

PERKINS 4108 VALVE STEM SEAL
Valve stem seal for Perkins 4108 engine
