PowerStop Caliper Kit 19881996 Buick Regal Front Left (L4276). PowerStop L4276 Power Stop 88 96 Buick Regal Front Left Autospecialty Caliper w Bracket Autospecialty By PowerStop Replacement Brake Caliper DIRECT REPLACEMENT CALIPER Autospecialty by PowerStop Brake Calipers (sold individually) are perfect for the DIY and professional installers and bolt on directly in place of the original stock caliper. PowerStop Brake Calipers and brackets are manufactured and engineered to provide the best performance and meet the highest quality standards. Autospecialty by PowerStop Brake Calipers are expertly assembled using new seals, guide pins, dust boots, bleeder screws, and stainless steel abutment hardware clips. High temperature EPDM rubber dust boots and premium assembly lubricants are used to ensure a smooth caliper operation and durability in the harshest conditions. PowerStop calipers are 100% pressure tested and inspected to guarantee a reliable, high quality brake performance. Autospecialty by PowerStop Brake Calipers deliver a reliable, hassle free, and durable brake caliper replacement solution for the value minded consumer! 100 Percent Pressure Tested To Prevent Leaks Brand New Components Incl. Seals boots bleeder Screws Hardware Pins High Temperature EPDM Rubber For Extended Life Premium Silicone Lubrication For Smooth Operation Remanufactured In Our Chicago IL Facility Abutment Clips Included: No Bleeder Screw Included: Yes Bleeder Screw Thread Diameter: 10mm Bleeder Screw Thread Pitch: 1. 50mm Bleeder Screw Thread Size: M10 x 1. 5 Brake Pads Included: No Caliper Casting Material: Cast iron Caliper Color: Gray Caliper Piston Material: Steel Caliper Piston Quantity: 2 Caliper Slides Included: Yes Caliper Type: Floating Grade Type: Regular Mounting Bolt Included: No Mounting Bracket Included: Yes Mounting Hardware Included: No Pad Wear Sensor Included: NO Piston Diameter: 41. 91mm