Millway Motorsport BMW M-Sport Rear Stainless Steel Brake Caliper Pistons | 90523-44-4

Millway Motorsport 90523-44-4 stainless steel rear brake caliper pistons are a track-focused replacement for the factory aluminium pistons used in a wide range of BMW M Sport and M-car rear Brembo calipers.

Repeated high-temperature track use can place considerable thermal load on the standard aluminium pistons. Millway machines these replacements from diamond-polished stainless steel and incorporates an air-gap design to reduce heat transfer between the brake pad and piston.

Key Features

• Diamond-polished stainless steel construction
• Designed for high-temperature track use
• Air-gap design helps reduce heat transfer from pad to piston
• Set of four rear caliper pistons
• Direct upgrade for compatible BMW/Brembo rear brake calipers

BMW Applications

Compatible with rear M Sport/Brembo brake calipers used on applications including BMW F20/F21 M135i and M140i, F22 M235i and M240i, F87 M2, F87 M2 Competition, F80 M3 and F82/F83 M4, plus other compatible BMW models using the same rear caliper.

Important Track-Use Note

These pistons are intended for track-focused use and do not provide a provision for the original dust seals. They are therefore not intended as an OE-style road replacement where maintaining the factory dust-seal arrangement is required.

Professional brake-system installation is strongly recommended.

Browse the complete Millway Motorsport range.

Millway part number: 90523-44-4.

We understand it can be a bit confusing to figure out if a part will work for your car. No worries! Just shoot us a message with your question, and our friendly sales team will then be in touch to confirm if this part is the correct for your vehicle!

Disclaimer:

Products sold by Nineteen72 Performance are exclusively designed for off-road or sanctioned competition use. Any use on public roads is strictly prohibited and may violate local, state, and federal laws. Nineteen72 Performance does not confirm the legality of road use; it is the consumer's responsibility to comply with applicable laws. Use of these products for any purpose other than intended is at the user's own risk. Nineteen72 Performance is not liable for misuse or non-compliance.

Warranty:

At Nineteen72 Performance, we proudly back every product in our store, ensuring that each item comes with a comprehensive warranty.

All components crafted by our esteemed third-party partners in the store are accompanied by a minimum one-year manufacturer's warranty. Our warranty terms are uniform across all products, providing coverage for any manufacturing defects that may arise over time, excluding typical wear and tear. Your satisfaction and product durability are our top priorities.

Shipping & Returns:

At Nineteen72 Performance we offer worldwide shipping.

14-Day Easy Returns at Nineteen72 Performance

Love what you bought from Nineteen72 Performance? Great! If not, no worries. Enjoy a hassle-free 14-day return window. Just ensure your items are unused and in their original condition. For returns, contact us at Returns@Nineteen72Performance.co.uk. Your satisfaction drives us.

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