Wilwood Billet Remote Reservoir –  120ml Billet-Aluminum Brake Fluid Tank

The Wilwood Billet Remote Reservoir delivers a stylish, rugged solution wherever the factory brake-fluid tank must be relocated. Both body and cap are CNC-machined from 6061-T6 aluminum, while the 4-ounce (≈118 ml) capacity keeps the footprint compact yet sufficient for most Wilwood tandem master cylinders.

Key Benefits

• Billet-aluminum construction – exceptional crack and vibration resistance plus an attractive raw-machined finish

• 4 oz ≈ 118 ml capacity – ideal for Wilwood 7/8–1 in tandem master cylinders

• 3/8-24 UNF (-3 AN) feed port – accepts popular PTFE stainless-steel hoses for a clean, leak-free connection

• Remote mounting – kit includes an adjustable strap bracket and stainless hardware for quick firewall or chassis installation

• Precision Viton seal and knurled billet cap ensure a positive grip and airtight closure

• Built-in sight tube lets you verify fluid level at a glance

• Compatible ‑3 AN braided hoses in multiple lengths (sold separately) simplify line routing

Typical Uses

• Master-cylinder swaps in track-day, drift and rally builds

• Engine bays with limited space near the booster (top-mount turbos, ITBs, V-config engines)

• Classic cars fitted with hydraulic handbrakes or dual-cylinder pedal boxes

• Race cars needing quick fluid-level checks during pit stops