994041 O-Ring | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta O-ring listed for 21 applications across the TAD, D and TADH engine series. O-ring 993664 covers the same three engine families on 31 applications, so where two O-rings could suit the same area, match the number to the position you are working on rather than picking by appearance.

🚤 Compatibility

• Engine Family: TAD, D, TADH

Full model list at the end of this description.

⚙️ Key Features

• Listed for 21 applications
• Fits TAD, D and TADH series engines
• Shares its engine families with O-ring 993664

🔌 Function

Seals a joint by being compressed into its groove, closing the path between the two components.

⚠️ Common Signs of Failure

• Seepage or a persistent damp film at the joint
• Ring found flattened, nicked or twisted on removal
• Rubber gone hard, chalky or swollen
• Pressure bleeding away slowly with no other fault found

🛠️ Service Notes

• Lubricate the ring and the lead-in chamfer so it does not roll or shear as it goes home
• Check the groove and bore for scoring before fitting - a scratch across the sealing face will defeat a new ring

📦 Condition

• Genuine Volvo Penta part
• Brand new
• Supplied in original or equivalent packaging

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta D8A5-A MH, D8A2-A MP, D8A6-A MH
• Volvo Penta TAD840GE, TAD840-43VE, TAD840GE-B
• Volvo Penta TAD570-72VE, TAD570-71VE-B
• Volvo Penta TAD880-82GE, TAD880-84VE
• Volvo Penta TADH880-82GE, TADH880-84VE
• Volvo Penta TAD540-42VE
• Volvo Penta TAD550-51VE
• Volvo Penta TAD552VE
• Volvo Penta TAD580-83VE
• Volvo Penta TAD841-43GE
• Volvo Penta TAD850-52VE
• Volvo Penta TAD851-53GE
• Volvo Penta TAD853VE
• Volvo Penta TAD870-73VE