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Summary
  • A brake caliper looks like a thick, U-shaped block mounted over the edge of the brake disc.
  • The brake caliper is the housing for the brake pads, and it helps convert hydraulic pressure into mechanical force to move the brake pistons.
  • Always take steps to keep yourself safe before uninstalling the brake caliper. Take a photo of the caliper for reference before working on it, and avoid using the brake hose to hang the caliper.

Q: What does a brake caliper look like on a car?

A: A brake caliper looks like a thick, U-shaped block that fits over the brake disc’s edge. A stock caliper in a baseline vehicle often goes unpainted, while a performance part in a luxury or performance car might be painted in black, red, silver, or yellow.

brake caliper diagram
The illustration shows a very common type of single-piston caliper and how it works. When the caliper is applied, the square cut seal distorts, and when the pressure is released, the seal returns to its original shape, retracting the caliper piston. | Image Source: Richard McCuistian

The brake caliper houses the brake pads in the brakes. It helps convert hydraulic pressure into mechanical force that moves the brake pistons, pressing the brake pads into the brake disc.

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There are three different types of brake calipers.

  • The most common, simplest, and affordable type is the floating caliper, which has one or two pistons on one side of the brake disc that slides inward.
  • Next is the fixed caliper, which places pistons on both sides and prevents flexing to distribute pressure on the disc more evenly.
  • Finally, there’s the sliding caliper, which gets its name from the sliders that allow the caliper to move back and forth while braking.
brake caliper
A brake caliper on a car | Image Source: Richard McCuistian

Tips on How to Access the Brake Caliper

Always take steps to ensure your safety before working on the brake caliper. Park your car on a level surface to reduce the chances of rolling while you’re underneath it. Then, shift to park and set the parking brake. Finally, place wheel chocks behind the tires.

Take snapshots of the brake caliper for reference before removing them from the brake rotor. The photos will help you reassemble the caliper.

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Avoid using the brake hose to hang the brake caliper. The hose isn’t designed to bear the weight of the part. Instead, use a sturdy rope or wire to support the caliper while working on it.

About The Authors
Written By Automotive and Tech Writers

The CarParts.com Research Team is composed of experienced automotive and tech writers working with (ASE)-certified automobile technicians and automotive journalists to bring up-to-date, helpful information to car owners in the US. Guided by CarParts.com's thorough editorial process, our team strives to produce guides and resources DIYers and casual car owners can trust.

Reviewed By Technical Reviewer at CarParts.com

Richard McCuistian has worked for nearly 50 years in the automotive field as a professional technician, an instructor, and a freelance automotive writer for Motor Age, ACtion magazine, Power Stroke Registry, and others. Richard is ASE certified for more than 30 years in 10 categories, including L1 Advanced Engine Performance and Light Vehicle Diesel.

Any information provided on this Website is for informational purposes only and is not intended to replace consultation with a professional mechanic. The accuracy and timeliness of the information may change from the time of publication.

File Under : Braking System , Auto Repair , DIY Tagged With :
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