Audi Brake Master Cylinder - TRW 4A0611021D

Product Information

The brake master cylinder is responsible for taking the mechanical energy from the brake pedal input and transferring it to hydraulic energy providing hydraulic pressure to all 4 wheels. While not a typical maintenance item, a brake master cylinder can wear out and fail most commonly due to worn out internal seals.

• Spongy Pedal Feel
• Loss of brake operation
• Poor brake performance
• Internal fluid leaks
• External fluid leaks

About TRW

TRW Automotive is a business focused on the use of technology and manufacturing skill to make the impossible, possible. In 2014 TRW Automotive was acquired by ZF, a global leader in manufacturing OE (Original Equipment) spare parts for vehicles around the world. They remain as one of the world’s largest automotive suppliers through a combination of aftermarket and OEM (original equipment manufacturer) offerings. Their specialties span from electronics to steering to braking and occupant safety. TRW is OEM to over 40 major vehicle manufacturers, employing over 60,000 worldwide. The result? Chances are TRW parts were used during the manufacture of your car, so why not use TRW replacement parts when they need to be replaced? Stick with an OEM brand you can trust.

TRW Automotive is a global leader in automotive safety, producing one of the largest arrays of active and passive safety technologies. It continues to be at the forefront of developments in vehicle dynamics, driver assist systems, foundation brakes, inflatable restraints, seat belt technologies and the electronics and software advancements that will enhance the safety, convenience and comfort of tomorrow's vehicles.

The TRW brand is part of ZF Aftermarket, leader in the world for Original Manufacturer [OE] quality automotive safety products. Our TRW Braking systems, Steering and Suspension parts, Commercial Vehicle components and Service Tools are legendary for their engineering quality and innovative design. They are also famously well tested, in-house and independently.