21400720 Pipe | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta Separately Mounted Engine-Heater Coolant Pipe - Part Number: 21400720

Genuine formed coolant pipe used in a separately mounted Volvo Penta engine-heater installation for engines equipped with the heavy-duty air-filter arrangement. It routes engine coolant through the heater and back into the cooling circuit using the factory connection and support geometry.

⚙️ Key Features

• Separately mounted engine-heater coolant pipe

• Used with 750W and 2000W heater configurations

• Heavy-duty air-filter installation

• Factory-formed pipe route and sealing ends

• Designed for hot pressurised coolant

• Works with the specified hose, nipple, clamp and support components

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 21400720 - Current OEM part number

OEM / Related Numbers:

• 21400720

• 3828447 - 750W engine-heater reference

• 3828643 - 2000W engine-heater reference

Aftermarket / Verified Equivalents:

• No aftermarket equivalent

Associated Service Parts:

• 3828447 - 750W engine heater

• 3828643 - 2000W engine heater

• 943268 - Hose nipple

• 467716 - Elbow nipple

• 866461 - Vibration damper

• 990939 / 990940 - Flange nuts

• 1547252 - Sealing ring

• 1546531 - Lock brace

• 984733 / 984734 / 994387 - Flange screws

• 847238 - Spacer sleeve

• 943369 - Rubber hose

• 994559 - Hose clamp

• 3847489 - Companion pipe

• 11998 - Gasket

• 192639 - Nipple

• 949747 / 945081 - Clamps

• 965552 - Bracket

🚤 Compatibility

Documented configuration:

• Volvo Penta industrial-engine installations using a separately mounted engine heater

• Heavy-duty air-filter configuration

• 750W heater installation using 3828447

• 2000W heater installation using 3828643

• Confirm heater wattage, coolant connection layout, hose routing, engine product number and serial number

🔌 Function

The pipe carries coolant through the electric engine heater so the engine block and cooling circuit can be pre-warmed before starting.

Common signs of failure:

• Coolant leakage at a pipe union

• Engine heater not warming the engine

• Pipe cracking from vibration

• Corrosion or restricted coolant flow

• Hose misalignment or chafing

📦 Condition

• Genuine Volvo Penta part

• Brand new

• Supplied in original or equivalent packaging