829205 Cap | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta cap from the Cooling System group, weighing 0.05 kg and listed for 28 applications across MD, TMD, AQ, D, BB and AQD series engines. It supersedes part number 818666, which was catalogued earlier as a cover, so a parts list quoting that number as a cover is answered by this cap.

🚤 Compatibility

• Engine Family: MD, TMD, AQ, D, BB, AQD
• HP Range: 55 HP
• Serial Range: MO-4256

Full model list at the end of this description.

⚙️ Key Features

• Supersedes 818666, catalogued earlier as a cover
• 0.05 kg
• 28 applications across MD, TMD, AQ, D, BB and AQD series

🔌 Function

Closes off a cooling-system opening, sealing it so coolant is retained and dirt kept out.

⚠️ Common Signs of Failure

• Coolant weeping or salt crust around the cap
• Cap seized so it cannot be removed by hand
• Sealing face or seal hardened, cut or flattened
• Cap corroded or distorted
• Coolant loss with no other leak found

🛠️ Service Notes

• The number it replaces was listed as a cover, so check the seat you are fitting to
• Renew the seal and clean the seating face - do not cure a leak by overtightening

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 829205 → Supersedes 818666

OEM / Related Numbers

• 818666 earlier number superseded by this part

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta 230A, 230B, 250A, 250B, 251A
• Volvo Penta AQ131A, AQ131B, AQ131C, AQ131D
• Volvo Penta AQ151A, AQ151B, AQ151C
• Volvo Penta AQ125B, AQ125A
• Volvo Penta AQ145B, AQ145A
• Volvo Penta AQ171A, AQ171C
• Volvo Penta AQ120B
• Volvo Penta AQ140A
• Volvo Penta AQD21A
• Volvo Penta AQD40A
• Volvo Penta BB140A
• Volvo Penta BB145A
• Volvo Penta D2-55B
• Volvo Penta MD21A
• Volvo Penta MD40A
• Volvo Penta TMD40A