Billet washer-fluid cap for Volkswagen Group models
Billet washer cap.
Replace the bright blue factory plastic cap with a proper Midnight Black billet detail.
A beautifully engineered complete replacement that instantly tidies the engine bay and matches the rest of the RacingLine billet dress-up range.
VWR19G704
![RacingLine Billet Washer Bottle Cap – MK7 R/8V S3/Octavia/TT [VWR19G704] 7 RacingLine washer cap](https://hp.net.au/wp-content/uploads/2026/07/source-01-2-scaled.jpg)
Why
change?
Doesn’t your car deserve better than cheap plastic parts in the engine bay?
The RacingLine billet Washer Fluid Cap is a complete replacement for the factory blue plastic cap, bringing a far cleaner OEM-plus appearance.
- Beautifully over-engineered for an exquisite feel and exceptional product experience
- A complete replacement for the factory blue plastic cap
- Secure location through a nylon retaining ring that replicates the factory indexing tabs
- High-gloss Midnight Black finish with laser-etched RacingLine detailing
- Machined from solid 6061 aluminium and made to remain correctly aligned
Precision engineered for perfect performance.
Each cap starts life as a solid billet of 6061 aluminium.
Meticulously machined with the latest CNC 5-axis technology.
Nylon retaining ring replicates the factory indexing tabs to keep the cap aligned.
Polished, then gloss-anodised to stay beautiful year after year.
![RacingLine Billet Washer Bottle Cap – MK7 R/8V S3/Octavia/TT [VWR19G704] 8 RacingLine precision-engineered billet detail](https://hp.net.au/wp-content/uploads/2026/07/source-06-1-scaled.jpg)
Confirmed applications.
Confirmed for the following popular Volkswagen Group applications.
VWR19G704




![RacingLine Billet Washer Bottle Cap – MK7 R/8V S3/Octavia/TT [VWR19G704] 1 RacingLine Billet Washer Bottle Cap – MK7 R/8V S3/Octavia/TT [VWR19G704]](https://hp.net.au/wp-content/uploads/2017/09/washer-cap-vwr19g704-6_53441749443_o.jpg)
![RacingLine Billet Washer Bottle Cap – MK7 R/8V S3/Octavia/TT [VWR19G704] 2 RacingLine Billet Washer Bottle Cap – MK7 R/8V S3/Octavia/TT [VWR19G704] - Image 2](https://hp.net.au/wp-content/uploads/2017/09/washer-cap-vwr19g704-1_53442021935_o.jpg)
![RacingLine Billet Washer Bottle Cap – MK7 R/8V S3/Octavia/TT [VWR19G704] 3 RacingLine Billet Washer Bottle Cap – MK7 R/8V S3/Octavia/TT [VWR19G704] - Image 3](https://hp.net.au/wp-content/uploads/2017/09/washer-cap-vwr19g704-2_53441612911_o.jpg)
![RacingLine Billet Washer Bottle Cap – MK7 R/8V S3/Octavia/TT [VWR19G704] 4 RacingLine Billet Washer Bottle Cap – MK7 R/8V S3/Octavia/TT [VWR19G704] - Image 4](https://hp.net.au/wp-content/uploads/2017/09/washer-cap-vwr19g704-3_53441612901_o.jpg)
![RacingLine Billet Washer Bottle Cap – MK7 R/8V S3/Octavia/TT [VWR19G704] 5 RacingLine Billet Washer Bottle Cap – MK7 R/8V S3/Octavia/TT [VWR19G704] - Image 5](https://hp.net.au/wp-content/uploads/2017/09/washer-cap-vwr19g704-4_53440685242_o.jpg)
![RacingLine Billet Washer Bottle Cap – MK7 R/8V S3/Octavia/TT [VWR19G704] 6 RacingLine Billet Washer Bottle Cap – MK7 R/8V S3/Octavia/TT [VWR19G704] - Image 6](https://hp.net.au/wp-content/uploads/2017/09/washer-cap-vwr19g704-5_53441749438_o.jpg)