BMW Brake Calipers for BMW X Series E53 (2000-2006)

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Brake calipers require periodic maintenance just like the rest of your braking system. The number one problem with brake calipers is caused by rust. The caliper and the internal piston are made from cast iron and is prone to rust just like any other ferrous material. Not replacing your brake fluid regularly will lead to water entering or forming in the system and that will rust the calipers and hard brake lines from the inside out. A rusted caliper will cause the piston to seize, creating a stuck caliper, dragging brakes, wheel vibrations, pulling to one side, excessive brake dust and heat, or even a total loss of brake function on that wheel.

We offer brake caliper rebuild kits but sometimes the condition of the inner piston is just not safe to re-use. Unfortunately you really don't know for sure until you have removed the caliper and taken it apart. As a convenience we offer freshly rebuilt calipers. Each caliper is cleaned and sand-blasted to remove surface rust and dirt/grime. The pistons are rebuilt with new seals and dust boots and re-installed into the caliper housing. The caliper you get is ready for a direct replacement on your car! There's no mess from brake fluid leaking everywhere and no fighting to get the piston seals to fit. Replacing the calipers with newly rebuilt units does not take any more signifcant time during a typical brake pad/rotor overhaul. Rebuilt calipers are sold on a core exchange basis so we need your original calipers returned to us.

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ECS Performance Caliper Guide Bushing Set - Most Models
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
ECS - Corporate Logo
T#:362994
Part#: 003326ECS01
In Stock
Sale - Save 25% $ 166.99

This product was last offered at the strikethrough price on
05-02-2026

$ 124.79 USD
Free Shipping
Sale - Save 25%
$ 166.99

This product was last offered at the strikethrough price on
05-02-2026

$ 124.79 USD
Free Shipping

This caliper bushing kit will eliminate flex caused by weak rubber caliper bushings. As the brake pedal is pressed the caliper grabs the rotor and twists on its mounting bushings. The rubber bushings allow the caliper to deflect and twist which affects pedal feel and results in uneven pad wear. These solid brass bushings will not twist or deflect so your calipers can squeeze the pads evenly on both sides of the rotor (sort of like what multi-piston big brakes do). This will give you much longer pad life and a more consistent pedal feel. This is the most complete kit we have ever sold with stainless steel caliper slide bolts, o-rings, and new dust boots. Unlike other kits, these bushings are pressed into the caliper and will not shift or slide on their own.

Installation is straightforward: remove the old rubber bushings and press in the new brass bushings (we recommend special tool 003326ECS03). High temp caliper grease or anti-seize is required. The new bushings include an inner o-ring that helps trap grease on the slide bolt, reducing friction and wear.

***Click here for installation instructions*** 

***Click here for the installation tool***

For most models with floating calipers. Fits the rear of E90/2 and E60, but for the front you'll need the kit found here. Does not fit E30 models with Girling calipers, but is compatible with Ate calipers. 

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ECS Performance Brake Caliper Guide Bushing Installation Tool Set ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
ECS - Corporate Logo
T#:388820
Part#: 003326ECS03
In Stock
Sale - Save 25% $ 45.75

This product was last offered at the strikethrough price on
05-03-2026

$ 34.31 USD
Free Shipping on orders $49 and up
Sale - Save 25%
$ 45.75

This product was last offered at the strikethrough price on
05-03-2026

$ 34.31 USD
Free Shipping on orders $49 and up

Installs bushings straight and true with minimal effort. Includes tools for both iron and aluminum calipers. Purchase only one tool set for your entire caliper guide bushing upgrade - tools are not one time use.

 

***Click here for installation instructions*** 

 

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ECS Performance Caliper Guide Bushing Set - E90/2 E60 (Front) ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
ECS - Corporate Logo
T#:363468
Part#: 003326ECS02
In Stock
Sale - Save 20% $ 196.99

This product was last offered at the strikethrough price on
05-02-2026

$ 157.24 USD
Free Shipping
Sale - Save 20%
$ 196.99

This product was last offered at the strikethrough price on
05-02-2026

$ 157.24 USD
Free Shipping

This caliper bushing kit will eliminate flex caused by weak rubber caliper bushings. As the brake pedal is pressed the caliper grabs the rotor and twists on its mounting bushings. The rubber bushings allow the caliper to deflect and twist which affects pedal feel and results in uneven pad wear. These solid brass bushings will not twist or deflect so your calipers can squeeze the pads evenly on both sides of the rotor (sort of like what multi-piston big brakes do). This will give you much longer pad life and a more consistent pedal feel. This is the most complete kit we have ever sold with stainless steel caliper slide bolts, o-rings, and new dust boots. Unlike other kits, these bushings are pressed into the caliper and will not shift or slide on their own.

Installation is straightforward: remove the old rubber bushings and press in the new brass bushings (we recommend special tool 003326ECS03). High temp caliper grease or anti-seize is required. The new bushings include an inner o-ring that helps trap grease on the slide bolt, reducing friction and wear.

***Click here for installation instructions*** 

***Click here for the installation tool***

For front calipers on E90/2 and E60. For rear calipers and all caliper on other models, click here

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ECS Stainless Caliper Guide Bolt - 54mm Length - E53 E6X E82 E9X Z4 ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
ECS - Corporate Logo
T#:374679
Part#: 34116757036KT
In Stock
Sale - Save 41% $ 32.99

This product was last offered at the strikethrough price on
05-02-2026

$ 19.34 USD
Free Shipping on orders $49 and up
Sale - Save 41%
$ 32.99

This product was last offered at the strikethrough price on
05-02-2026

$ 19.34 USD
Free Shipping on orders $49 and up

The caliper sliding bolts are one of the most overlooked wear items in your braking system. Subjected to constant motion and often without adequate lubrication the guide bolts see a lot of wear and tear. Factory BMW caliper guide bolts are very expensive from the dealer - these 304 stainless steel bolts are less than half the price and provide outstanding resistance to corrosion and wear. They are manufacturered with tighter tolerances than the factory bolts too.

Price is per bolt unless noted (2 required per caliper).

Enter your vehicle info for specific fitment information.

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Caliper Guide Bolt - Priced Each - 42mm Length - Multiple BMWs ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
ECS - Corporate Logo
T#:383387
Part#: 34111157041KT5
In Stock
Sale - Save 40% $ 24.99

This product was last offered at the strikethrough price on
05-02-2026

$ 14.99 USD
Free Shipping on orders $49 and up
Sale - Save 40%
$ 24.99

This product was last offered at the strikethrough price on
05-02-2026

$ 14.99 USD
Free Shipping on orders $49 and up

The caliper sliding bolts are one of the most overlooked wear items in your braking system. Subjected to constant motion and often without adequate lubrication the guide bolts see a lot of wear and tear. Factory BMW caliper guide bolts are very expensive from the dealer - these 304 stainless steel bolts are less than half the price and provide outstanding resistance to corrosion and wear. They are manufacturered with tighter tolerances than the factory bolts too.

Price is per bolt unless noted (2 required per caliper).

Enter your vehicle info for specific fitment information.

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Genuine BMW Brakes Ventilation Valve 34116758107
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW - Corporate Logo
T#:8045
Part#: 34116758107
In Stock
Sale - Save 66% $ 35.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 12.21 USD
Free Shipping on orders $49 and up
Sale - Save 66%
$ 35.99

This product was last offered at the strikethrough price on
05-14-2026

$ 12.21 USD
Free Shipping on orders $49 and up

Genuine BMW Brakes Ventilation Valve is essential for maintaining optimal brake performance and safety in your BMW. This high-quality ventilation valve is designed specifically for BMW models, ensuring a perfect fit and superior functionality.

The Genuine BMW Brakes Ventilation Valve plays a crucial role in the brake system by preventing moisture and contaminants from entering, thereby extending the life of your brake components and ensuring consistent braking performance. Engineered to BMW's exact specifications, this valve provides reliability and peace of mind for BMW owners.

  • Ensures optimal brake performance and safety
  • Prevents moisture and contaminants from entering the brake system
  • Extends the life of brake components
  • Designed specifically for BMW models
  • Guarantees a perfect fit and easy installation
  • Engineered to BMW's exact specifications for superior functionality

Investing in a Genuine BMW Brakes Ventilation Valve ensures your vehicle receives the best quality parts, enhancing its performance and longevity. Trust genuine BMW parts to keep your BMW running at its best.

Genuine BMW Ventilation Valve
This item fits the following BMW Chassis:
E36 M3,E39 M5,E60 M5,E63 M6,E46 M3,E82 1M Coupe,E85 Z4M,E53 48IS,E36,E39,E46,E53 X5,E63,E65,E82,E83 X3,E85 Z4,E86 Z4,E90,E92,E93

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