VolvoEngine Parts

3831426 — Thermostat 3831426 1544389 For Volvo Penta Engine D6A D70 D7C Td101G Td101Gk Td102K Td103K Td121 Td70 Aqad40A Aqad40B

This thermostat is a critical component of the engine's cooling system, regulating coolant flow to maintain optimal operating temperature. It opens and closes based on coolant temperature, ensuring efficient heat exchange and preventing overheating or undercooling. A failing thermostat may stick open or closed, leading to inconsistent engine temperatures, reduced fuel efficiency, and potential engine damage.

Thermostat 3831426 1544389 For Volvo Penta Engine D6A D70 D7C Td101G Td101Gk Td102K Td103K Td121 Td70 Aqad40A Aqad40B – Part No 3831426 – Volvo Spare Part
Part Specifications
BrandVolvo
CategoryEngine Parts
ConditionAftermarket — OEM Specification
DispatchSame-day from Mumbai (before 3 PM IST)
GST InvoiceAvailable — all orders
Export DocsCommercial invoice, packing list, COO

Compatible Models

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Installation & Application Notes

Inspect mating surfaces for wear before fitting. Use torque specs from service manual. Replace gaskets and seals as a set — reusing compressed gaskets causes oil leaks. Clean all oil passages with compressed air.

Always consult the OEM service manual for model-specific torque values and procedures. WhatsApp our technical team if you need fitment guidance.

Part TypeEngine Thermostat
MaterialMetal and composite
ApplicationEngine cooling system
Service LifeReplace every 2,000 hrs or 2 years
CompatibilityVolvo Penta OEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

The first sign of a failing thermostat is often erratic engine temperature readings on the gauge. If ignored, the engine may consistently run too cool or overheat, leading to poor performance and increased fuel consumption. Prolonged operation outside the optimal temperature range can cause premature wear on internal engine components.

Installation Tip

Ensure the thermostat's jiggle valve, if present, is oriented correctly according to the service manual. Do not overtighten the thermostat housing bolts, as this can warp the housing or damage the gasket.

Service Note

Inspect the radiator hoses and water pump for signs of wear or leakage when replacing the thermostat.