21593140 Pipe | Genuine Volvo Penta Part

🔧 Product Description

Engine-heater pipe used in Volvo Penta installations equipped with heater 21578298 or separately mounted 220-240 V, 2000 W heater 22310451. The formed pipe provides the correct coolant route and connection geometry for the heater circuit.

🚤 Compatibility

• Engine Family: D

Full model list at the end of this description.

⚙️ Key Features

• Genuine Volvo Penta engine-heater pipe
• Factory routing for the heater coolant circuit
• Associated with heater 21578298 or 22310451
• OEM bends and end connections
• Maintains coolant flow without interfering with engine components
• Engine type: Volvo Penta diesel engine with coolant pre-heater installation

🔌 Function

Circulates engine coolant through the pre-heater so the engine can be warmed before starting.

⚠️ Common Signs of Failure

• Coolant leakage at connections
• Poor heater circulation or slow warm-up
• Corrosion, cracking or chafe damage
• Air locks caused by incorrect routing
• Restricted flow from internal deposits

🛠️ Service Notes

• Offer the pipe up and check it reaches both connections freely before you tighten anything — a rigid pipe pulled into place is a pipe left under permanent strain, and strained pipes crack at the fittings in service
• Renew the sealing washers, O-rings or union seals that go with the pipe rather than reusing the old ones, and make sure the seats, faces and threads are clean
• Keep the ends capped while you work and blow or flush a pipe through before fitting; anything left inside goes straight into the oil, fuel or coolant system
• Tighten unions and banjo bolts evenly to the figures in the workshop manual for your engine — overtightening distorts the seat and starts the leak you were trying to cure
• Refit every clip and support bracket in its original place and keep the pipe clear of hot or moving parts so it cannot chafe or be shaken to failure

🔄 Supersession & Cross Reference

OEM / Related Numbers

• 21578298 engine heater
• 22310451 separately mounted engine heater, 220-240 V, 2000 W

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta D13C3-B MH, D13C1-B MH, D13C4-B MH, D13B-E MG, D13B-E MG (FE), D13B-E MH, D13B-E MH (FE), D13B-F MG, D13B-F MG (FE), D13B-N MH, D13B-N MH (FE), D13C4-B MP, D13C5-B MP, D13C1-A MH, D13C2-A MH, D13C1-B MG, D13C3-B MG, D13C2-B MG, D13C4-B MG, D13C2-A MG, D13C1-A MG, D13C8-B MP