Centric 145.54011 Disc Brake Caliper Piston - Front

Centric Premium Phenolic Caliper Piston for Prius

Centric Premium Phenolic Caliper Pistons are built for brake hydraulic service where piston material and dimensions matter. Part number 145.54011 is a front disc brake caliper piston for 2004-2009 Toyota Prius applications, with phenolic construction sized to match the listed OE-style dimensions.

Key Features

• Phenolic material for brake caliper piston service
• Front disc brake caliper piston application
• Part number 145.54011
• Outside diameter: 54.01 mm / 2.10639 in
• Inside diameter: 34.03
• Thickness: 10.81 mm / 0.42159 in
• Length: 45.09

Product Details

The Centric Premium Phenolic Caliper Pistons line focuses on brake hydraulic components with application-specific sizing and material selection. This piston is intended for front brake service on the Toyota Prius and is specified with a 54.01 mm piston outside diameter, 34.03 inside diameter, and 10.81 mm thickness. If you are sourcing a Toyota Prius front caliper piston, 145.54011 provides the dimensional details needed for a direct-match repair decision.

Fits 2004-2009 Toyota Prius, front.

What It Helps Address

• Worn or damaged front caliper piston surfaces
• Brake hydraulic service on a Toyota Prius front caliper
• Incorrect piston sizing during caliper rebuild work
• Brake drag caused by piston condition issues
• Loss of proper caliper piston function in front brake repair

Installation Notes and Tips

Verify caliper bore dimensions, piston diameter, and thickness before installation. Clean the caliper bore thoroughly, inspect seals and related hydraulic components, and confirm the piston orientation matches the original front brake assembly. For fitment searches, this part is listed for 2004-2009 Toyota Prius front brake applications, and the part number 145.54011 should be matched to the vehicle and caliper configuration before assembly.

Quality Assurance

Centric Premium Phenolic Caliper Pistons are part of Centric’s brake hydraulics lineup, built around application-specific dimensions for service work on listed vehicles. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.