858979 Sealing Ring | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta sealing ring weighing 0.011 kg and listed for 104 applications across IPS, D, AD, TAMD, TMD and DP series engines and drives. It consolidates two earlier numbers that were catalogued as quite different items - 838830 as a cover and 858945 as a flange - so an enquiry against either now returns this ring alone, and the surrounding parts may need ordering separately.

🚤 Compatibility

• Engine Family: IPS, D, AD, TAMD, TMD, DP, DPX, SP, KAD, KAMD, MD

Full model list at the end of this description.

⚙️ Key Features

• Consolidates 838830, catalogued earlier as a cover, and 858945, catalogued earlier as a flange
• 0.011 kg
• 104 applications across six engine and drive series
• Covers IPS through to the older D and AD series

🔌 Function

Seals its joint by being compressed between the two faces, closing 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
• Sealing faces pitted, scored or corroded

🛠️ Service Notes

• The numbers this replaces were a cover and a flange - check whether those parts are also needed rather than assuming the ring alone will do
• Renew whenever the joint is opened and clean the groove fully before fitting

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 858979 → Supersedes 838830

OEM / Related Numbers

• 858945 earlier number superseded by this part
• 838830 earlier number superseded by this part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 D13C2-B MP, D13C2-A MP, D13C4-A MP, D13B-L MP, D13B-G MP, D13B-K MP, D13B-C MP, D13C6-A MP, D13C4-B MP, D13C5-B MP, D13C5-A MP, D13C7-B MP, D13C8-B MP
• Volvo Penta AD41P-B, AD41B, AD41D, AD41L-A, AD41P-A, AD41, AD41A, AD41BJ
• Volvo Penta TAMD31L-A, TAMD31M-A, TAMD31P, TAMD31P-A, TAMD31S, TAMD31A, TAMD31B, TAMD31D
• Volvo Penta TAMD41B, TAMD41D, TAMD41H-A, TAMD41H-B, TAMD41M-A, TAMD41P-A, TAMD41P, TAMD41A
• Volvo Penta D11C2-A MP, D11C4-A MP, D11B4-A MP, D11B2-A MP, D11A-C MP, D11A-D MP, D11A-E MP
• Volvo Penta AD31, AD31B, AD31D-A, AD31L-A, AD31P-A, AD31XD
• Volvo Penta DP-A, DP-A1, DP-B, DP-B1
• Volvo Penta D8A2-A MP, D8A4-A MP, D8A8-A MP
• Volvo Penta IPS15-C, IPS15-B, IPS15-A
• Volvo Penta IPS2-C, IPS2-A, IPS2-B
• Volvo Penta KAD42A, KAD42B, KAD42P-A
• Volvo Penta KAD44P, KAD44P-B, KAD44P-C
• Volvo Penta KAMD42A, KAMD42B, KAMD42P-A
• Volvo Penta KAMD43P, KAMD43P-A, KAMD43P-B
• Volvo Penta KAMD44P-B, KAMD44P-C, KAMD44P-A
• Volvo Penta TMD31A, TMD31B, TMD31L-A
• Volvo Penta D41, D41B
• Volvo Penta IPS20-D, IPS20-E
• Volvo Penta IPS3-C, IPS3-A
• Volvo Penta IPS30-E, IPS30-D
• Volvo Penta KAD43P-B, KAD43P-A
• Volvo Penta 740A, 290A
• Volvo Penta SP-A, SP-A1
• Volvo Penta TAMD42WJ-A, TAMD42B
• Volvo Penta TMD41A, TMD41B
• Volvo Penta DPX
• Volvo Penta KAD300-A
• Volvo Penta KAD32P
• Volvo Penta KAMD300-A
• Volvo Penta MD31A