PowerStop L4975 Disc Brake Caliper - Front Left

Front Left OE Replacement Caliper

PowerStop L4975 is a front left disc brake caliper built as a direct OE stock replacement for select Ford F-150 and Lincoln Mark LT applications. It is remanufactured in Chicago, pressure tested for piston operation and leak prevention, and assembled with updated seals and related service components for dependable brake performance.

Key Features

• Direct replacement front left floating caliper for OE-style fitment
• Cast iron caliper body with gray finish
• 2-piston design with 54.10 mm piston diameter
• Phenolic piston material for stable operation
• Caliper slides and mounting bracket included
• High-temperature EPDM rubber dust boots and silicone lubricant used in assembly
• Bleeder screw thread size: M10 x 1.0

Product Line Details

PowerStop Autospecialty OE Replacement Brake Calipers are built for drivers who want a stock-style brake service part without changing the original braking layout. The L4975 follows the OE replacement approach of the PowerStop Front OE Stock Replacement Caliper line, using remanufactured calipers and brackets with new seals, slide pins where applicable, dust boots, bleeder screws, and stainless steel brake pad abutment clips.

Detailed Description

Use PowerStop L4975 when servicing the front left brake corner on 2005 Ford F-150 from 11/29/04, 2006-2008 Ford F-150, and 2006-2008 Lincoln Mark LT. This front left caliper is engineered to bolt into the stock location and restore proper hydraulic clamping action with OE-style geometry. The cast iron housing, floating caliper design, and phenolic piston support consistent brake pad movement and pedal response in everyday driving.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Common Problems This Part Can Address

• Brake fluid leakage from a worn or damaged front caliper
• Uneven pad wear caused by sticking caliper slides or piston issues
• Reduced braking response from a failing hydraulic caliper assembly
• Corrosion or wear on the original front left caliper body
• Noisy or inconsistent brake operation related to caliper hardware wear

Installation Notes and Tips

Fits 2005 Ford F-150, front left, from 11/29/04. Fits 2006-2008 Ford F-150, front left. Fits 2006-2008 Lincoln Mark LT, front left. Verify rotor condition, pad wear, and brake hose condition before installation. Bleed the brake system after caliper replacement and confirm proper piston movement and slide operation before returning the vehicle to service.

Quality Assurance

PowerStop remanufactures the caliper and bracket in its Chicago, IL facility and pressure tests each unit to verify piston operation and check for leaks. The assembly uses new seals, dust boots, bleeder screws, and stainless steel brake pad abutment clips, with high-temperature EPDM rubber dust boots and premium silicone lubricant for smoother operation in demanding conditions.