21493436 Engine Heater Kit | Genuine Volvo Penta Part

🔧 Product Description

A genuine Volvo Penta engine-heater installation kit for D3 marine diesel engines. The kit connects an approved coolant heater or cabin-heater circuit to the engine cooling system using the specified Volvo pipes, non-return valve, fittings and clamps.

🚤 Compatibility

• Engine Family: D
• HP Range: 110-220 HP
• Year Range: Approximately 2006-2018

Full model list at the end of this description.

⚙️ Key Features

• Genuine Volvo Penta D3 heater-installation package
• Correct Volvo Penta part number 21493436
• Includes Volvo coolant connections and non-return valve
• Supports engine pre-heating or an approved auxiliary heater circuit
• Maintains controlled coolant flow through the D3 cooling system
• Engine type: Volvo Penta D3 2.4L five-cylinder common-rail marine diesel

📋 Kit Contents

• 1 × hose nipple - 961657
• 1 × hose clamp - 961665
• 1 × hose clamp - 961669
• 1 × coolant pipe - 3581182
• 1 × distribution pipe - 345845
• 1 × non-return valve - 21493463
• Formed coolant hose(s), brackets and installation hardware supplied to the applicable engine configuration

🔌 Function

The kit creates a controlled coolant path through the heater circuit. The non-return valve prevents reverse flow while the pipes and clamps maintain a sealed connection to the engine cooling system.

⚠️ Common Signs of Failure

• Coolant leakage at heater connections
• Poor cabin heat or slow engine warm-up
• Reverse flow caused by a failed non-return valve
• Air locks or unstable coolant level
• Engine overheating because of incorrectly routed or restricted heater hoses

🛠️ Service Notes

• This kit provides the pipes, non-return valve and clamps to plumb an approved heater into the D3 cooling system — it does not include the heater element itself, so confirm that is ordered separately if not already fitted
• Fit the non-return valve the correct way round; reversed, it blocks normal coolant circulation rather than only stopping reverse flow through the heater circuit
• Drain the coolant below the connection point and isolate the heater's electrical supply before starting work, and check for leaks at every new joint once the system is refilled and run up to temperature

🔄 Supersession & Cross Reference

OEM / Related Numbers

• 961657 hose nipple
• 961665 hose clamp
• 961669 hose clamp
• 3581182 coolant pipe
• 345845 distribution pipe
• 21493463 non-return valve

Other-Brand OEM Numbers

• VOE21493436

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta D3-220I-G, D3-140A-D, D3-170A-D, D3-200A-D, D3-220A-D, D3-140I-D, D3-140A-E, D3-170A-E, D3-200A-E, D3-220A-E, D3-140I-E, D3-140A-F, D3-170A-F, D3-200A-F, D3-220A-F, D3-140I-F, D3-140A-G, D3-170A-G, D3-200A-G, D3-220A-G, D3-140I-G, D3-110I-D, D3-150I-D, D3-170I-D, D3-200I-D, D3-220I-D, D3-110I-E, D3-150I-E, D3-170I-E, D3-200I-E, D3-220I-E, D3-110I-F, D3-150I-F, D3-170I-F, D3-200I-F, D3-220I-F, D3-110I-G, D3-150I-G, D3-170I-G, D3-200I-G, D3-110I-H, D3-140A-H, D3-170A-H, D3-200A-H, D3-220A-H, D3-150I-H, D3-170I-H, D3-200I-H, D3-220I-H, D3-140I-H