Description

The Volvo Penta Thermostat 20450736 is a genuine OEM engine cooling thermostat used in compatible Volvo Penta D5/D7 and industrial engine cooling systems. It regulates coolant temperature by controlling flow through the cooling circuit, helping the engine reach and maintain proper operating temperature.

Key Features

• Genuine Volvo Penta thermostat
• Part number: 20450736
• Opening temperature reference: 82–83°C
• Cooling-system thermostat for compatible Volvo Penta engines
• Helps maintain correct engine operating temperature
• Supports proper warm-up, cooling control, and engine efficiency
• Commonly associated with Volvo Penta D5A, D7A/D7C, TD420VE, TAD420VE, TAD620VE, TAD650VE, TAD660VE, TAD750VE, and TAD760VE applications

Engine Compatibility

Commonly shown for Volvo Penta engine families including D5A-B TA, D5A-T, D5A-TA, D7A-B TA, D7A-T, D7A-TA, D7C-B TA, D7C-TA, TD420VE, TAD420VE, TAD620VE, TAD650VE, TAD660VE, TAD750VE, and TAD760VE.

Serial Number Fitment Notice

Thermostat fitment should be confirmed by engine model and serial number before ordering. Volvo Penta cooling-system parts can vary by engine version, production range, and thermostat housing arrangement.

When This Part Needs Replacement

Replace the thermostat if the engine runs too cold, overheats, warms up slowly, has unstable temperature, shows cooling-system fault symptoms, or if the thermostat is being removed during cooling-system service and shows corrosion, sticking, or seal wear.

Installation Notes

Install according to the Volvo Penta service procedure for the specific engine. Drain coolant as required, clean the thermostat housing surfaces, replace related seals or gaskets when required, refill with the correct coolant mixture, bleed air from the system, and verify operating temperature after service.

Alternate/Superseded Part Numbers

Related references include:

• 20450736
• REC20450736 — aftermarket replacement reference

Parts Desk Insight

A thermostat is a small part, but it has a big effect on engine temperature control. Matching by serial number is important because similar Volvo Penta D5/D7 cooling systems can use different thermostat arrangements depending on engine version.

Shipping: Ships same or next day for fast Canada wide shipping.