858601 O-Ring | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta O-ring weighing 0.001 kg and listed for 61 applications across MD, TMD, AD, AQAD, D and TAMD series engines. No section size or bore is published for it, so order by part number - an O-ring of the right look from a general kit is very unlikely to be the right size or compound.

🚤 Compatibility

• Engine Family: MD, TMD, AD, AQAD, D, TAMD, MS, BB, HS, AQD, KAD, KAMD

Full model list at the end of this description.

⚙️ Key Features

• 0.001 kg
• 61 applications across six engine series
• No section size published - order by part number
• Common service item across the older engine range

🔌 Function

Seals the joint between two components by being squeezed into its groove, blocking the path fluid would otherwise take.

⚠️ Common Signs of Failure

• Weeping, seeping or dripping at the joint
• Ring hardened, flattened or taken a permanent set
• Ring nicked, twisted or pinched on assembly
• Ring swollen or gone sticky from the wrong fluid contact

🛠️ Service Notes

• Renew whenever the joint is opened rather than reusing
• Lubricate the ring and clean the groove before assembly to avoid nipping it

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta AD41P-B, AD41B, AD41D, AD41, AD41A, AD41BJ
• Volvo Penta AD31, AD31B, AD31D, AD31D-A, AD31XD
• Volvo Penta MD22, MD22A, MD22L, MD22P
• Volvo Penta TAMD41B, TAMD41D, TAMD41M-A, TAMD41A
• Volvo Penta D41, D41B, D41D
• Volvo Penta TAMD31A, TAMD31B, TAMD31D
• Volvo Penta TMD22A, TMD22B, TMD22P-C
• Volvo Penta TMD31A, TMD31B, TMD31D
• Volvo Penta TMD40A, TMD40B, TMD40C
• Volvo Penta TMD41A, TMD41B, TMD41D
• Volvo Penta AQAD40B, AQAD40A
• Volvo Penta KAD42A, KAD42B
• Volvo Penta KAMD42A, KAMD42B
• Volvo Penta TAMD40A, TAMD40B
• Volvo Penta AD30A
• Volvo Penta AD40B
• Volvo Penta AQAD30A
• Volvo Penta AQD40A
• Volvo Penta BB740A
• Volvo Penta HS1A
• Volvo Penta MD30A
• Volvo Penta MD31A
• Volvo Penta MD40A
• Volvo Penta MS2B-A
• Volvo Penta MS5B
• Volvo Penta 740A
• Volvo Penta TAMD22P-B
• Volvo Penta TAMD30A
• Volvo Penta TAMD42B
• Volvo Penta TMD30A