{"product_id":"wilwood-120-8729-bk","title":"Wilwood Black Powerlite Brake Caliper with Four 1.38-Inch Pistons and 5.08-Inch Radial Mount","description":"\u003cp\u003eBlack powder coating covers this four-piston Powerlite radial caliper. Its stainless pistons have 1.38-inch bores, and the wider body is configured for 0.79–0.86-inch rotor thickness. The 3.00-square-inch published area is a system-sizing detail, not a universal measure of replacement compatibility. Wilwood Engineering was founded by Bill Wood in 1977 and is based in Camarillo, California. The company makes disc brake systems and components for motorsport, street-performance and specialized uses, including calipers, brake rotors, master cylinders, valves, fittings and brake lines; each component must match the requirements of the complete brake system.\u003c\/p\u003e\u003ch3\u003eTechnical Details\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eManufacturer part number: 120-8729-BK\u003c\/li\u003e\n\u003cli\u003eCaliper type: Powerlite Radial Mount\u003c\/li\u003e\n\u003cli\u003eConstruction: Forged Aluminium\u003c\/li\u003e\n\u003cli\u003eFinish: Black Powder Coat\u003c\/li\u003e\n\u003cli\u003ePiston bores: 1.38 \/ 1.38 inches\u003c\/li\u003e\n\u003cli\u003ePiston type: Stainless\u003c\/li\u003e\n\u003cli\u003ePiston count: 4\u003c\/li\u003e\n\u003cli\u003ePublished piston area: 3.00 square inches\u003c\/li\u003e\n\u003cli\u003eDust boots: No\u003c\/li\u003e\n\u003cli\u003eNominal rotor width: 0.86 inch\u003c\/li\u003e\n\u003cli\u003eRotor thickness limits: 0.79–0.86 inches\u003c\/li\u003e\n\u003cli\u003eRotor diameter limits: 9.45–11.00 inches\u003c\/li\u003e\n\u003cli\u003eMounting style: Radial\u003c\/li\u003e\n\u003cli\u003eHandedness: Not restricted to one side; correct mounting and bleed orientation required\u003c\/li\u003e\n\u003cli\u003eMounting centers: 5.08 inches\u003c\/li\u003e\n\u003cli\u003eMounting-hole size: 0.40 inch\u003c\/li\u003e\n\u003cli\u003eMount height: 1.56 inch\u003c\/li\u003e\n\u003cli\u003eHydraulic inlet thread: 1\/8-27 NPT\u003c\/li\u003e\n\u003cli\u003eRequired pad shape: 7912\u003c\/li\u003e\n\u003cli\u003ePublished pad area: 5 square inches\u003c\/li\u003e\n\u003cli\u003ePublished pad volume: 1.8 cubic inches\u003c\/li\u003e\n\u003cli\u003eManufacturer-listed component weight: 2.8 lb\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment \u0026amp; Compatibility\u003c\/h3\u003e\u003cp\u003eIdentify the installed Powerlite version and compare the bracket’s radial geometry and rotor offset. Check the specified pad shape and friction-track coverage before looking at wheel clearance. The hydraulic inlet and master cylinder must remain appropriate for this piston configuration, especially when changing from a smaller-bore compact caliper.\u003c\/p\u003e\u003cp\u003ePMB Performance has over 20 years of experience helping customers with brake and parts fitment. Share the installed component identification and relevant measurements when requesting assistance.\u003c\/p\u003e","brand":"Wilwood","offers":[{"title":"Default Title","offer_id":67764669907122,"sku":"120-8729-BK","price":257.52,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0521\/8792\/2610\/files\/120-8729-BK-xl.jpg?v=1792514594","url":"https:\/\/pmbperformance.com\/products\/wilwood-120-8729-bk","provider":"PMB Performance","version":"1.0","type":"link"}