Centric 146.38055 Disc Brake Caliper Piston - Rear

Reliable Aluminum Disc Brake Caliper Piston for Lexus LS460 and LS600h

The Centric Premium Steel & Aluminum Caliper Piston 146.38055 is engineered to meet the specific braking needs of Lexus LS460 and LS600h models. Crafted from durable aluminum, this disc brake caliper piston ensures consistent performance and longevity under demanding conditions.

• Constructed from high-quality aluminum for corrosion resistance and lightweight strength
• 38.0 mm outer diameter (Piston OD) designed for precise fitment
• Type C piston, compatible with specific Lexus brake caliper assemblies
• Part number 146.38055 ensures exact replacement for designated models
• Compatible with Lexus LS460 and LS600h brake systems

About Centric Premium Steel & Aluminum Caliper Pistons

The Centric Premium Steel & Aluminum Caliper Pistons product line combines the strength of steel and the lightweight properties of aluminum to deliver reliable brake caliper components. This line focuses on providing durable pistons that resist corrosion and wear, maintaining brake system integrity over time. The 146.38055 piston is part of this line, offering a balance of performance and material quality tailored for Lexus vehicles.

Product Details and Specifications

This disc brake caliper piston features a 38.0 mm outer diameter, which is critical for proper sealing and smooth caliper operation. The aluminum construction reduces weight compared to steel pistons, contributing to improved brake response and heat dissipation. The Type C piston designation indicates compatibility with specific caliper designs used in Lexus LS460 and LS600h models. Using the correct piston type and size helps maintain brake fluid pressure and prevents leaks or uneven pad wear.

Common Applications and Problem Solving

• Replacement for worn or damaged caliper pistons in Lexus LS460 and LS600h
• Addresses brake drag caused by corroded or seized pistons
• Resolves brake fluid leaks due to piston surface wear or damage
• Improves brake pedal feel by restoring proper caliper piston movement
• Prevents uneven brake pad wear from piston misalignment or sticking

Installation Notes and Tips

Ensure the brake caliper and piston bore are thoroughly cleaned before installation to prevent contamination. Lubricate the piston seals with appropriate brake fluid or lubricant to facilitate smooth insertion. Verify the piston type (Type C) and diameter (38.0 mm) match the vehicle specifications for Lexus LS460 and LS600h. Properly torque caliper components according to manufacturer guidelines to maintain brake system safety and performance.

Quality Assurance and Warranty

Centric Premium Steel & Aluminum Caliper Pistons are manufactured to meet or exceed OEM standards for fit, form, and function. The 146.38055 piston undergoes rigorous quality control to ensure durability and reliable braking performance. While specific warranty details are not provided, Centric products typically come with a limited warranty against defects in material and workmanship.