PFA Reproduction DB4 and DB4GT Thermostat Housing 3.7L
Product Info
PFA Reproduction DB4 and DB4GT Thermostat Housing 3.7L
Brand New Aston Martin DB4 / DB4GT Thermostat Housing (3.7L)
After years of being unavailable, we’re excited to reintroduce the Aston Martin DB4 and DB4GT / Zagato 3.7L thermostat housing. This critical component is essential for your classic car’s cooling system and is now available thanks to brand new tooling from January 2025.
A Faithful Reproduction with Modern Enhancements
Original factory tooling for the DB4 thermostat housing was lost, making authentic replacements nearly impossible to find. We’ve used traditional manufacturing combined with modern precision to create a meticulous reproduction that’s as close to the original as possible. This unit is a direct replacement for the OE part number 20-06-137.
Original units often suffer from age, including corrosion and damaged threads that lead to persistent coolant leaks. Our new production solves these common issues with a pristine, robust component, ensuring the integrity of your engine’s cooling system.
We’ve even incorporated a subtle but important enhancement: an additional 2mm of material on the temperature capillary boss for better thread engagement and improved durability.
Key Features & Compatibility:
- Direct Replacement: Perfect fit for Aston Martin DB4, DB4GT, and DB4GT Zagato models with the 3.7L engine.
- Authentic Reproduction: Manufactured using traditional methods for a period-correct appearance.
- Improved Reliability: Addresses common corrosion and thread damage issues.
- Enhanced Durability: Extra 2mm material on the capillary boss for better thread engagement.
- OE Part Number: Equivalent to Aston Martin OE part number 20-06-137.
- Parts Catalogue Reference: DB4: Plate B, Item 26, Page 6.
Secure your classic Aston Martin’s cooling system with this high-quality, newly reproduced thermostat housing. Order yours today!
Parts For Astons is an independent business dedicated to providing high-quality parts primarily for Aston Martin vehicles. Our expertise stems from years of passion and experience with Aston Martins from restoration and race preparation (and everything inbetween), ensuring every part we offer meets the exacting standards of these iconic vehicles.
We manufacture our own parts using our own designs which are developed in-house and rigorously tested before going to market. This enables us to manage our own quality control to ensure you receive a part which is 100% fit for purpose. If we do not have a part in stock, we can manufacture it quickly.
Closely associated with Goldsmith And Young, you can trust in our commitment to quality and personalised service for your restoration or performance needs. Should you have any questions, please do not hesitate to reach out and ask.
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