948685 Cap Nut | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta cap nut, early type, listed for 48 applications across the AD, AQ, D, TMD, THD and BB engine families. It supersedes part number 190566.

🚤 Compatibility

• Engine Family: AD, AQ, D, TMD, THD, BB, DH, DP, DPX, SP, TAMD, MD

Full model list at the end of this description.

⚙️ Key Features

• Early type
• 48 applications across six engine families
• Supersedes 190566
• Quantity varies by assembly, most commonly 12

🔌 Function

Closes off and seals the end of a threaded stud or fitting, capping it against leakage and keeping the thread clean.

⚠️ Common Signs of Failure

• Seep or drip past the cap
• Hex flats rounded off on removal
• Thread stripped or picked up
• Corrosion seizing the cap onto the stud

🛠️ Service Notes

• Renew any sealing washer under the cap rather than reusing the old one

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 948685 → Supersedes 190566

OEM / Related Numbers

• 190566 earlier number superseded by this part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 AD41P-B, AD41B, AD41, AD41A, AD41BJ
• Volvo Penta DH10A, DH10A 285, DH10A 360, DH10A Rail
• Volvo Penta DP-A, DP-A1, DP-B, DP-B1
• Volvo Penta AQ151A, AQ151B, AQ151C
• Volvo Penta TAMD41B, TAMD41M-A, TAMD41A
• Volvo Penta THD102KB, THD102KD, THD102K-KB
• Volvo Penta AD31, AD31B
• Volvo Penta AQ125B, AQ125A
• Volvo Penta AQ131A, AQ131B
• Volvo Penta AQ145B, AQ145A
• Volvo Penta D41, D41B
• Volvo Penta 740A, 290A
• Volvo Penta SP-A, SP-A1
• Volvo Penta TAMD31A, TAMD31B
• Volvo Penta TMD31A, TMD31B
• Volvo Penta TMD41A, TMD41B
• Volvo Penta AQ120B
• Volvo Penta AQ140A
• Volvo Penta BB140A
• Volvo Penta BB145A
• Volvo Penta DPX
• Volvo Penta MD31A