Racingline Machined Aluminium Brake Fluid Cap

RacingLine Billet Brake Fluid Cap – VW / Audi / SEAT / Cupra / Skoda

RacingLine Billet Brake Fluid Cap VWR19G707 is a premium aluminum cap for the brake fluid reservoir, developed for VW, Audi, SEAT / Cupra, and Skoda models.

This is a small but important detail in the engine bay. The factory plastic cap does the job, but for a car with a more serious braking system, dynamic driving, or track use, proper pressure equalization in the brake fluid reservoir is of real importance.

RacingLine replaces the standard plastic cap with a precisely crafted aluminum component that is not just a decorative cover. This is a complete replacement cap with an improved pressure equalization system, designed to maintain stable brake system operation.

In cars with large brake kits, aggressive driving, or track use, rapid pad wear can create negative pressure in the master brake cylinder. The RacingLine Brake Fluid Cap is specifically designed for better pressure balance, so the braking system operates as consistently as possible.

The cap is machined from a solid piece of 6061 aerospace-grade aluminum, then processed using modern 5-axis CNC technology. After machining, the component is polished and gloss anodized in RacingLine's characteristic Midnight Black finish to maintain its beautiful appearance year after year.

This is a typical OEM+ RacingLine detail – functional, beautiful, and crafted with attention to every part. It is ideal for completing the engine bay along with a RacingLine oil cap, coolant cap, washer fluid cap, and other aluminum details.

Key Advantages

• Premium aluminum cap for the brake fluid reservoir
• Product number: VWR19G707
• Complete replacement cap, not a decorative cover over the factory plastic
• Improves pressure equalization in the braking system
• Helps maintain correct pressure in the master brake cylinder
• Particularly suitable for cars with large brake kits and track use
• Designed for stable operation under high brake loads
• Replaces the factory plastic cap
• Made from a solid piece of 6061 aerospace-grade aluminum
• Precise 5-axis CNC machining
• Polished and gloss anodized in Midnight Black
• Integrated pressure balance system
• OEM+ appearance in the engine bay
• Ideal complement to other RacingLine aluminum details

Why does this upgrade matter?

The brake fluid reservoir cap is not just a visual element. It plays a role in maintaining proper pressure balance in the system. Under more serious braking loads, especially with large brake kits and track driving, stable pressure equalization is important for consistent brake system performance.

The RacingLine Billet Brake Fluid Cap combines functional engineering with premium craftsmanship. You get a more beautiful engine bay, but also a properly developed replacement component, not just a decorative cap.

Construction

• Material: 6061 aerospace-grade aluminum
• Precise 5-axis CNC machining
• Gloss black anodized Midnight Black finish
• Integrated breathing system for pressure balance
• Complete replacement cap for the brake fluid reservoir
• Designed for long-term use in the engine bay

Suitable for

• VW Golf 8 / 8.5 – 2020+
• VW Golf 8 / 8.5 GTI – 2020+
• VW Golf 8 / 8.5 GTI Clubsport – 2020+
• VW Golf 8 / 8.5 R – 2020+
• VW Golf 7 / 7.5 R – 2013–2020
• VW Golf 7 / 7.5 GTI & Clubsport – 2013–2020
• VW Golf 7 / 7.5 – 2013–2020
• VW Up! GTI – 2016+
• VW Up! 1.0 TSI – 2016+
• VW Passat B8 2.0 TSI – 2015+
• VW Arteon 2.0 TSI – 2017–2020
• VW T-Roc 2.0 TSI – 2017–2022
• Audi S3, RS3, A3, TT and other compatible Audi models
• SEAT Leon Cupra / Cupra Leon and other compatible SEAT / Cupra models
• Skoda Octavia and other compatible Skoda models

Important

• This is a complete replacement cap, not a decorative element placed over the factory plastic cap.
• The cap is part of the pressure equalization system in the brake fluid reservoir.
• Before ordering, visually check the type of factory brake fluid reservoir cap.
• The application list is not exhaustive – RacingLine specifies compatibility with Golf R, GTI, Audi S3 and RS3, Leon Cupra, Skoda Octavia, and other models.
• Combines ideally with RacingLine aluminum oil cap, coolant cap, washer fluid cap, and other engine bay details.