3979211 Coolant Pipe | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta coolant pipe from the Cooling System group, weighing 1.908 kg and listed for 4 applications across the THD and DH series. It supersedes part number 3979171, which was catalogued earlier simply as a pipe, so an older breakdown may show it under that name.

🚤 Compatibility

Typically suits:

• Volvo Penta THD102KB
• Volvo Penta THD102KD
• Volvo Penta THD102K-KB
• Volvo Penta DH10A

• Engine Family: THD, DH

⚙️ Key Features

• 1.908 kg
• Supersedes 3979171, previously listed as a pipe
• 4 applications across the THD and DH series
• Cooling System group

🔌 Function

Carries coolant between two fixed points on the engine along a rigid route that hose alone could not hold.

⚠️ Common Signs of Failure

• Coolant loss with staining or crusting along the pipe
• Weeping at a hose joint or flange on the pipe
• Pipe corroded or pitted through, often on the underside
• Ends distorted so the hose will not clamp evenly
• Overheating from restriction where the pipe has scaled up internally

🛠️ Service Notes

• Renew the hoses, clamps and any O-rings at the same time and flush the system before refilling
• Check the pipe ends are round and clean so the hose seals without overtightening the clamp

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 3979211 → Supersedes 3979171

OEM / Related Numbers

• 3979171 earlier number superseded by this part
• 425733 referenced in the part notes

📦 Condition

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