21791550 Valve Spring Washer | Genuine Volvo Penta Part

🔧 Product Description

Hardened valve-spring washer or seat for the assigned Volvo Penta cylinder head. It locates the spring and distributes spring load into the head or retainer.

🚤 Compatibility

• Engine Family: TAD, D, TADH

Full model list at the end of this description.

⚙️ Key Features

• Hardened load-bearing surface
• Correct spring register diameter
• Maintains valve-spring alignment
• Controls installed height where specified
• Engine-build controlled

🔌 Function

Supports and locates the valve spring while distributing spring load.

⚠️ Common Signs of Failure

• Grooving or fretting
• Cracking or cupping
• Incorrect installed spring height
• Valve-spring misalignment

🛠️ Service Notes

• Renew as a set when the valve gear is stripped, and keep the parts for each valve together so nothing is mixed between cylinders
• Inspect the seating face for cupping, cracking or a wear step before reassembly and renew rather than reuse anything marked
• Make sure the seat in the head and the face of the washer are clean, with no carbon or swarf trapped underneath
• Fit the correct way up and the correct way round as shown in the workshop manual for your engine, and check the spring and any seal or shroud sit square before the spring is compressed
• Once assembled, check by hand that each valve moves freely and seats fully before the engine is turned over

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta D8A2-A MP, D8A5-A MH, D8A6-A MH, D8A5-A MG, D8A6-A MG, D8A4-A MP, D8A1-A MP, D8A3-A MP
• 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 TAD852VE-B
• Volvo Penta TAD853VE
• Volvo Penta TAD870-73VE