Single Brake Pedal, Dual 7/8 Bore Tall Master Cylinders

OVERVIEW

When you''re tearing through the dunes or navigating technical off-road trails, your braking system is the only thing standing between a controlled descent and a potential disaster. The EMPI Race Trim Single Brake Pedal Assembly with Dual 7/8 Bore Tall Master Cylinders is engineered for the serious air-cooled enthusiast who demands precision and redundancy. By utilizing a dual master cylinder configuration, this setup provides a significant safety advantage over single-reservoir systems; if one circuit fails, the other remains operational to bring your rig to a halt. The 7/8-inch bore size is specifically chosen to provide the necessary volume and pressure for heavy-duty braking applications, making it an ideal choice for vehicles equipped with larger calipers or four-wheel disc brake conversions where standard master cylinders often fall short.

Beyond its mechanical prowess, this assembly is built to withstand the harshest environments while looking like a showpiece. It features a heavy-duty mounting base designed to resist flexing under extreme pedal pressure, ensuring every ounce of effort you put into the pedal is transferred directly to the brake pads. The master cylinders feature a polished finish and are topped with tall, quick-fill caps that allow for rapid fluid level checks and refills in the pits. The pedal itself is finished in high-quality chrome, providing a sleek, professional look to your cockpit. Whether you are building a dedicated sand rail, a rugged woods buggy, or a custom street fighter, this EMPI assembly delivers the "race-ready" performance and reliability that Appletree Auto customers have come to expect from the industry leader in air-cooled performance.

FITMENT

This is a universal high-performance component designed for custom applications. While it is commonly used in the following vehicles, fabrication or mounting modifications are typically required:

• Sand Rails & Dune Buggies: All years and custom chassis.
• VW Beetle (Type 1): Custom off-road or race builds (requires floorboard modification).
• VW Karmann Ghia: Performance builds and track-oriented setups.
• Meyers Manx & Clone Buggies: Ideal for upgraded braking systems.
• Custom Tube Chassis: Designed for easy integration into 1.5-inch or similar frame rails.

SPECS

• Product Brand: EMPI (Race Trim Series)
• Part Number: 16-2532-0
• Pedal Configuration: Single Brake Pedal
• Master Cylinder Quantity: Dual (Two Cylinders)
• Master Cylinder Bore Size: 7/8 Inch
• Reservoir Style: Tall Body for increased fluid capacity
• Cap Style: Quick-Fill threaded caps
• Finish: Chrome Pedal with Polished Master Cylinders
• Base Material: Heavy-Duty Cast Alloy
• Outlet Fitting Size: 1/8 Inch NPT (National Pipe Thread)
• Required Fluid: DOT 3 Brake Fluid ONLY
• Weight: Approximately 6.73 lbs

PRO TIPS

1. Proper Fitting and Adapter Selection

It is crucial to remember that the outlets on these master cylinders are threaded for 1/8 inch NPT. Most standard VW brake lines use a metric M10x1.0 flare. To connect your existing hard lines, you must use the correct NPT-to-Metric adapters. Do not attempt to force a metric fitting into the NPT port, as this will strip the threads and cause high-pressure leaks. We recommend using a high-quality thread sealant specifically designed for brake systems on the NPT side to ensure a 100% airtight seal before you hit the dirt.

2. Master Cylinder Bench Bleeding

Before installing the assembly into your vehicle, always "bench bleed" both master cylinders. Because this is a dual-cylinder setup, air can easily become trapped in the internal pistons. Use a bench bleeding kit to loop the fluid from the output ports back into the reservoirs while manually cycling the pedal. This ensures that you aren''t fighting stubborn air bubbles throughout the entire length of your brake lines later. Skipping this step often results in a "spongy" pedal that is nearly impossible to fix through traditional wheel-bleeding alone.

3. Strict Adherence to DOT 3 Fluid

The seals inside these EMPI master cylinders are specifically engineered for use with DOT 3 brake fluid. Never use DOT 5 silicone-based fluid or high-temp racing fluids unless they are explicitly cross-compatible with DOT 3 seals. Using the wrong fluid can cause the internal seals to swell or degrade, leading to a complete loss of braking pressure. For the best longevity and performance in off-road conditions, stick with a high-quality DOT 3 fluid and perform a complete system flush at the start of every season to remove any moisture or contaminants.