831617 Sealing Ring | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta sealing ring from the Cooling System group, weighing 0.007 kg and listed for 27 applications across the AQ, BB, MD, B, MB and AQD series. It supersedes part numbers 423279 and 876221, one of which was previously listed only as a spare part. The published production reference for the change point is incomplete in the source.

🚤 Compatibility

• Engine Family: AQ, BB, MD, B, MB, AQD
• Serial Range: MOXXXX/103387-

Full model list at the end of this description.

⚙️ Key Features

• 0.007 kg
• Supersedes 423279 and 876221
• 27 applications across six engine series
• Raw water circuit seal
• 2 used per assembly

🔌 Function

Seals a joint or shaft in the raw water circuit so water stays in the pump and air is not drawn into the suction side.

⚠️ Common Signs of Failure

• Water weeping or dripping from the pump joint
• Air being drawn in, giving weak flow at the outlet
• Ring flattened, hardened or taking a permanent set
• Ring nipped, twisted or extruded from its groove
• Salt crusting at the joint line

🛠️ Service Notes

• This ring shares the same 27 applications as seawater pump 831178, so renew it whenever that pump is opened
• Sealing ring 831892 in this round carries the same 0.007 kg published weight but only 8 applications, so weight will not separate them, order by part number
• Clean the groove and chamfer before fitting, and never refit an old ring

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 831617 → Supersedes 423279

OEM / Related Numbers

• 423279 earlier number superseded by this part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 AQ130C, AQ130D, AQ130A, AQ130B
• Volvo Penta AQ170B, AQ170C, AQ170A
• Volvo Penta BB115A, BB115B, BB115C
• Volvo Penta BB170B, BB170C, BB170A
• Volvo Penta MB20A, MB20B, MB20C
• Volvo Penta AQ115A, AQ115B
• Volvo Penta AQD21A, AQD21B
• Volvo Penta MD21B, MD21A
• Volvo Penta 100S, 110S
• Volvo Penta AQ165A
• Volvo Penta B20
• Volvo Penta BB165A