VolvoEngine Parts

8149186 — Thermostat 8149186 For Volvo Engine D12A D6A Tad1030G Truck A35D A40D F10 F12 F16 Fl7

This thermostat regulates engine coolant temperature by controlling flow to the radiator, ensuring optimal operating conditions for the Volvo D12A and D6A engines. It is manufactured to meet stringent OEM quality standards, providing reliable sealing and accurate temperature response compared to a worn unit that may stick open or closed. Operators may notice a fluctuating or consistently high/low engine temperature gauge, accompanied by reduced engine performance or increased fuel consumption.

Thermostat 8149186 For Volvo Engine D12A D6A Tad1030G Truck A35D A40D F10 F12 F16 Fl7 – Part No 8149186 – 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

Always verify with serial number before ordering.

WhatsApp for Price & Availability☎ Call Mumbai Office

Parts Trading Company  ·  Mumbai, Est. 1956  ·  Same-day dispatch  ·  Ships worldwide  ·  GST invoice included

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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 Coolant Thermostat
MaterialMetal and composite
ApplicationEngine cooling system
Service LifeReplace every 2,500 hours or 2 years
CompatibilityVolvo specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

A primary symptom of a failing thermostat is erratic engine temperature readings on the gauge. If the thermostat remains stuck open, the engine may struggle to reach optimal operating temperature, leading to poor performance and increased emissions. If it sticks closed, the engine can rapidly overheat, potentially causing severe internal damage.

Installation Tip

Ensure the thermostat is installed in the correct orientation, with the spring facing downwards, to allow proper coolant flow. Do not force the thermostat into the housing, as this can damage the sealing surfaces.

Service Note

When replacing the thermostat, it is advisable to inspect the radiator hoses for signs of wear and check the coolant level and condition.