860643 Hose | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta hose running from the heat exchanger to the oil cooler, from the Cooling System group. It weighs 0.109 kg and is listed for 14 applications across AD, D, TMD and TAMD series engines. It supersedes part numbers 3582723 and 838778, the latter catalogued earlier as a coolant pipe - so a rigid pipe has been replaced by a hose on this run.

🚤 Compatibility

Typically suits:

• Volvo Penta AD41D
• Volvo Penta AD41L-A
• Volvo Penta AD41P-A
• Volvo Penta D41B
• Volvo Penta D41D
• Volvo Penta D41L-A
• Volvo Penta TMD41B
• Volvo Penta TMD41D
• Volvo Penta TMD41L-A
• Volvo Penta TAMD41D
• Volvo Penta TAMD41H-A
• Volvo Penta TAMD41H-B
• Volvo Penta TAMD41P-A
• Volvo Penta TAMD41P

• Engine Family: AD, D, TMD, TAMD

⚙️ Key Features

• Heat exchanger to oil cooler
• Supersedes 3582723 and 838778, the latter catalogued earlier as a coolant pipe
• 0.109 kg
• 14 applications across AD, D, TMD and TAMD series
• Also supersedes Volvo part number 3581391

🔌 Function

Carries coolant between the heat exchanger and the oil cooler along a pre-formed flexible route.

⚠️ Common Signs of Failure

• Weeping or dripping at a clip, or a dried crust below a joint
• Hose gone hard and glassy, or soft and spongy when squeezed
• Cracks opening in a bend when the hose is flexed
• Bulging or ballooning under pressure
• Inner bore perished and shedding rubber into the circuit

🛠️ Service Notes

• The superseded 838778 was catalogued as a coolant pipe, so the replacement will not look like the part that came off - check the routing and the clip positions before deciding it is wrong
• Renew the clips with the hose

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 860643 → Supersedes 3582723

OEM / Related Numbers

• 838778 earlier number superseded by this part

📦 Condition

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