

VWR19G703
RacingLine Billet Header Tank Cap / MQB / EA888.3
Overview: RacingLine's replacement Billet Coolant Expansion Cap for MQB & A5-platform models is a full replacement for the original plastic cap. Keeping that coolant expansion tank sealed is a critical part of your car's cooling system. RacingLine's replacement cap will ensure that proper pressure is maintained, and never exceeded, especially on high-performance engines.
Highlights
- OEM-level fitment and finish
- Designed for improved performance and response
- Built for daily reliability and long-term use
Fits: Volkswagen: Arteon, CC (B7), Eos, Golf (Mk5, Mk6, Mk7), Golf GTI (Mk5, Mk6, Mk7), Golf R (Mk6, Mk7), Jetta GLI (Mk5, Mk6, Mk7), New Beetle, Passat (B6, B7, B8), R32 (Mk5), Tiguan (Mk1, Mk2), Touareg (Mk1, Mk2) | Audi: A3 (8P, 8V, 8Y), A4 (B7, B8/B8.5, B9), A5 (B8/B8.5, B9), A6 (C6, C7, C8), A7 (4G), A8 (D3, D4, D5), Allroad (C6, C7), Q3 (F2, F3), Q5 (80A, 8R), R8 (42/FG, 4S), RS3 (8P, 8V, 8Y), RS4 (B7), RS5 (B8/B8.5, B9), RS6 (C8), RS7 (4G, C7), S3 (8P, 8V, 8Y), S4 (B7, B8/B8.5, B9), S5 (B8/B8.5, B9), S6 (C6, C7, C8), S7 (4G, C7), SQ5 (80A), TT (8J, 8S), TTRS (8J, 8S), TTS (8J, 8S)
Please verify exact application before purchase.
Why RacingLine: Purpose-built upgrades for VW & Audi platforms, engineered for performance you can feel and fitment you can trust.
Pairs well with

RacingLine Billet Header Tank Cap / MQB / EA888.3
Specifications
| Platform | MQB |
|---|---|
| Engine | EA888.3 |
| Type | Billet Upgrade |
| Brand | RacingLine |
| SKU | VWR19G703 |
| Weight | 0.33 lb |
Fitment
- Audi R8 (42/FG) - all engines
- Audi RS7 (4G) - 4.0 TFSI
- Audi S7 (4G) - 4.0 TFSI
- Audi A7 (4G) - all engines
- Audi R8 (4S) - all engines
- Audi Q5 (80A) - all engines
Frequently asked questions
Which cars does the Billet Header Tank Cap fit?
What is the Billet Header Tank Cap?
Will it fit my car without modifications?
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, within 24 hours on weekdays.
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