859987 Tube | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta tube from the Cooling System group, weighing 0.036 kg and listed for 11 applications across the D, TMD, MS, TAMD and MD engine series. It supersedes part number 3583738. The other tube in this listing group, 859847, is a fuel system part with a different fitment list and is not an alternative to it.

🚤 Compatibility

Typically suits:

• Volvo Penta D2-55
• Volvo Penta D2-55B
• Volvo Penta TMD22A
• Volvo Penta TMD22B
• Volvo Penta TMD22P-C
• Volvo Penta MS2B-A
• Volvo Penta TAMD22P-B
• Volvo Penta MD22
• Volvo Penta MD22A
• Volvo Penta MD22L
• Volvo Penta MD22P

• Engine Family: D, TMD, MS, TAMD, MD
• HP Range: 55 HP

⚙️ Key Features

• 0.036 kg
• 11 applications across D, TMD, MS, TAMD and MD engines
• Supersedes 3583738
• Cooling System group, distinct from fuel tube 859847

🔌 Function

Carries coolant along a fixed route between two points in the circuit, holding the line clear of moving and hot components.

⚠️ Common Signs of Failure

• Coolant weeping from an end fitting or from a corroded point along the run
• Salt or coloured crusting marking the leak path
• Tube wasted thin, pinholed or split, often on the underside
• Kinked or flattened section restricting flow
• Fitting threads corroded so the joint will not seal

🛠️ Service Notes

• Renew the sealing washers or O-rings at each end rather than reusing them
• Pressure-test the system after fitting instead of relying on a cold visual check

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 859987 → Supersedes 3583738

📦 Condition

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