955980 O-Ring | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta o-ring of the late type, listed for 49 applications across the AQ, AQD, BB, MD, B and MB families. It supersedes 906849, which was catalogued earlier as a washer. Its published weight of 0.227 kg sits far above every other o-ring listed here that publishes a weight, which run from 0.001 to 0.039 kg, so treat the figure with caution and identify the ring by its groove and part number rather than by mass.

🚤 Compatibility

• Engine Family: AQ, AQD, BB, MD, B, MB

Full model list at the end of this description.

⚙️ Key Features

• Late type
• Supersedes 906849, previously catalogued as a washer
• 49 applications across six engine families
• Published weight is out of step with the other o-rings listed here
• 2 used per assembly

🔌 Function

Seals the joint between two faces, squeezed into its groove to hold pressure and keep fluid where it belongs.

⚠️ Common Signs of Failure

• Weeping or dripping at the sealed joint
• Ring hardened, flattened or gone shiny
• Nicks or splits from being pinched on assembly
• Swelling or softening from contact with the wrong fluid

🛠️ Service Notes

• This is the late-type ring, and the number it replaces was previously listed as a washer - on an older engine check what is actually in the joint before ordering

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 955980 → Supersedes 906849

OEM / Related Numbers

• 906849 earlier number superseded by this part

Aftermarket / Verified Equivalents

• Sierra Marine: 18-7148-9
• Orbitrade: 11980

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta AQD70B, AQD70BL, AQD70CL, AQD70D, AQD70C
• Volvo Penta AQ130C, AQ130D, AQ130A, AQ130B
• Volvo Penta AQ200D, AQ200C, AQ200B, AQ200F
• Volvo Penta 100S, 110S, 280B, 290DP
• Volvo Penta AQ170B, AQ170C, AQ170A
• Volvo Penta AQ225D, AQ225B, AQ225C
• Volvo Penta BB115A, BB115B, BB115C
• Volvo Penta BB170B, BB170C, BB170A
• Volvo Penta MB20A, MB20B, MB20C
• Volvo Penta AQ115A, AQ115B
• Volvo Penta AQ255A, AQ255B
• Volvo Penta AQD21A, AQD21B
• Volvo Penta MD21B, MD21A
• Volvo Penta AQ120B
• Volvo Penta AQ140A
• Volvo Penta AQ165A
• Volvo Penta AQ190A
• Volvo Penta AQ240A
• Volvo Penta AQ260A
• Volvo Penta AQ290A
• Volvo Penta B20
• Volvo Penta BB165A