Billet Aluminum Coolant Reservoir Cap for VW Audi MQB (Golf GTI R A3 S3 TT)
SHIPPING - RETURNS - WARRANTY - CANCELLATION POLICY
*** Market Conditions after 2020 have changed the landscape of automotive parts. Although we try to stock 1000's of items in our multiple warehouse and use multiple distribution channels, having back-orders are unavoidable in today's market. If you are in need of a product quickly, we suggest email, message, or call us for availability so that we may explore your options.
Email: Sales@Speedzoneweb.com
Call: 407-846-8430
Text: 407-749-6314
Frequently Asked Questions
Upgrade your engine bay with this billet aluminum coolant reservoir cap designed for a wide range of VW and Audi MQB platform vehicles. Replacing the factory plastic cap, this upgrade offers improved durability, heat resistance, and a more refined appearance under the hood. With a precision-machined design and anodized finish, it delivers both function and a clean performance-inspired look.
Features:
- Billet aluminum construction for improved durability over factory plastic caps
- Enhanced heat resistance for long-term reliability
- Precision CNC-machined design for accurate fitment
- Anodized finish for corrosion and wear resistance
- Textured grip design for easy removal and installation
- Includes O-ring seal for a secure and leak-free fit
- Direct replacement for factory coolant reservoir cap
Fitment:
- Compatible with VW and Audi MQB platform vehicles
- Common models include Golf MK6, MK7, MK7.5, MK8, GTI, Golf R
- Also fits Audi A3, S3, TT, and related MQB models
- Compatible with select SEAT and Skoda MQB platform vehicles
Replaces Part Numbers:
- 3C0121321
- 2Q0121321
- 5Q0121321
Specifications:
- Material: 6061 aluminum alloy
- Finish: Anodized
- Design: OEM-style pressure cap replacement
Contents:
- 1x Coolant reservoir cap
Installation Notes:
- Ensure engine is completely cool before installation
- Transfer the internal pressure valve from the factory cap if required
- Do not overtighten during installation
- Professional installation recommended if unsure
Condition:
- Brand new
- Never used
Our History
For 26 years Speedzone Performance LLC has been providing aftermarket car parts to Central Floridians and 1000's of customers online. What makes us different than all the other places online? We have 3 actual brick and mortar locations where were serve customers daily and find new ways to provide support and assistance to the automotive community at large. From our in house SPDZ1 Brand, to our constantly growing in stock inventory, we strive to make our customer service and ease of purchase stand out from the rest! We are also one of the largest automotive part financing providers anywhere in the United States, and continue to provide more options for our customers every year. We love what we do, and it shows in every product we sell and every new customer who becomes a part of our Speedzone Family.