838737 Tube | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta tube for the run between the heat exchanger and the circulation pump, weighing 0.073 kg and listed for 9 applications across AD, D, TMD and TAMD series engines. It is one of a pair of near-identical tubes in this group.

🚤 Compatibility

Typically suits:

• Volvo Penta AD41B
• Volvo Penta D41
• Volvo Penta D41B
• Volvo Penta TMD41A
• Volvo Penta TMD41B
• Volvo Penta AD41A
• Volvo Penta AD41BJ
• Volvo Penta TAMD41B
• Volvo Penta TAMD41A

• Engine Family: AD, D, TMD, TAMD

⚙️ Key Features

• Heat exchanger to circulation pump
• 0.073 kg
• 9 applications across AD, D, TMD and TAMD engines

🔌 Function

Carries coolant between the heat exchanger and the circulation pump as part of the closed fresh water circuit.

⚠️ Common Signs of Failure

• Coolant loss with no obvious external leak until the engine is warm
• Damp, crusty coolant salt deposits at the tube ends
• Tube corroded, pitted or thinned along its length
• Chafed or dented section where the tube runs close to a bracket
• Overheating from a partly collapsed or silted tube

🛠️ Service Notes

• Tube 838738 is the near-identical alternative at 0.07 kg over 7 applications — only 3 grams separate them, so the weight will not tell them apart and the engine listing must decide
• Fit new sealing rings at both ends and pressure test the circuit after assembly

📦 Condition

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