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Coolant Thermostat - Gates - TH32478G1

Coolant Thermostat - Gates - TH32478G1

Ensure your vehicle's engine operates at the optimal temperature with the Gates OE Quality Replace...

Best current price£12.11from eBay

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eBayGATES-OE TH32478G1 Thermostat, coolant for SUBARU
£5.90 delivery
£12.11
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AutodocGATES Engine thermostat SUBARU TH32478G1 21200AA070,21200AA071,21200AA072 21210AA030
£8.45 delivery
£15.17
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My Motor WorldGates TH32478G1 Thermostat
Free delivery in 1–3 days
£34.99
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Product Information

Full details

The Gates TH32478G1 Coolant Thermostat is designed for automotive DIYers and professional mechanics who need a reliable, OE-quality solution to restore or maintain precise engine temperature regulation. As a direct replacement part, it offers the key benefit of restoring optimal thermal efficiency, which helps improve engine performance and fuel economy; however, users should note that this unit is supplied without a housing, meaning the existing housing must be inspected for integrity before installation.

All features

Model Part NumberTH32478G1
BrandGates

Extended Product Information

FAQs

Does this thermostat come with a housing?

No, the TH32478G1 is a thermostat insert only and does not include the thermostat housing.

What is the opening temperature of this unit?

This unit is calibrated to open at 78 °C.

Are the gaskets included?

Yes, the product comes with the necessary gaskets and seals for a complete installation.

How often should I replace my thermostat?

While there is no set mileage interval, it is recommended to inspect or replace the thermostat if you experience overheating or poor heater performance.

Can I install this on any vehicle?

No, this is a specific part. You must verify compatibility with your vehicle's make, model, and year before purchase.

Troubleshooting

Engine temperature remains high after installation

Ensure all air pockets are bled from the cooling system, as trapped air can prevent proper coolant circulation.

Coolant leak around the housing

Check that the new gasket is seated correctly and that the housing bolts are tightened to the manufacturer's specified torque.

Pros and Cons

Pros

  • Meets or exceeds OE performance specifications
  • Includes essential gaskets and seals for installation
  • Reliable temperature regulation at 78 °C
  • Cost-effective alternative to dealer-branded parts

Cons

  • Supplied without a replacement housing
  • Requires proper cooling system bleeding after install
  • Compatible with specific vehicle models only

Setup, Compatibility & Care

Before beginning installation, verify the compatibility of the TH32478G1 with your vehicle's specific make and model. Always perform this service on a cool engine to avoid the risk of coolant burns.

  1. Drain the coolant from the system until it is below the level of the thermostat housing.
  2. Remove the old thermostat housing and discard the old seal/gasket.
  3. Clean the mating surfaces on both the engine block and the housing to ensure a flush fit.
  4. Install the new Gates thermostat, ensuring the orientation matches the original.
  5. Apply the new gasket/seal provided in the package.
  6. Reinstall the housing, torque the bolts to manufacturer specifications, and refill the coolant.
  7. Bleed the air from the cooling system to prevent air pockets.

Price History

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