{"product_id":"wilwood-120-11870-rd","title":"Wilwood GM Metric D154 Single-Piston Caliper, Red \/ 2.50-Inch Bore \/ 1.04-inch Rotor Width","description":"\u003cp\u003eThis red D154 is a single-piston floating caliper for a matched GM metric brake arrangement. Its 2.50-inch stainless piston gives 4.90 square inches of area in the nominal 1.04-inch rotor-width body. Founded in 1977 by Bill Wood, Camarillo, California-based Wilwood Engineering designs and manufactures disc braking systems. Its motorsport, street-performance and specialized range covers calipers, brake rotors, master cylinders, valves, fittings and brake lines, selected as parts of a complete system.\u003c\/p\u003e\u003ch3\u003eTechnical Details\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eManufacturer part number: 120-11870-RD. Component: D154 Single \u0026amp; Dual Piston Floater caliper.\u003c\/li\u003e\n\u003cli\u003eSupply: one brake caliper, not a complete axle brake kit. Match the mating rotor, pads, bracket and connection hardware to the installation.\u003c\/li\u003e\n\u003cli\u003e5.46-inch floating mounting pattern, universal; mounting height 0.37 inches and hole size 0.69 inch.\u003c\/li\u003e\n\u003cli\u003eHydraulic inlet thread: M10 x 1.50. Use a fitting with the correct thread and sealing seat.\u003c\/li\u003e\n\u003cli\u003e1 stainless steel piston with 2.50-inch bore diameter. The specified effective area is 4.90 sq in.\u003c\/li\u003e\n\u003cli\u003eThe rotor channel is specified for 1.04-inch nominal width. Rotor outside diameter: 11.00 to 12.19 inches. Specified rotor-width limits: 0.87–1.04 inch.\u003c\/li\u003e\n\u003cli\u003eBrake pad profile D154; select friction material for the actual operating conditions.\u003c\/li\u003e\n\u003cli\u003ePiston dust boots: not fitted.\u003c\/li\u003e\n\u003cli\u003eRed powder coat finish on a forged aluminum caliper body.\u003c\/li\u003e\n\u003cli\u003eCaliper weight: approximately 4.6 lb.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment \u0026amp; Compatibility\u003c\/h3\u003e\u003cp\u003eCheck the slide-pin bracket and original-style pad sweep against the rotor. Do not treat the D154 single- and twin-piston bodies as hydraulically identical merely because their mounting format is shared.\u003c\/p\u003e\u003cp\u003ePMB Performance has over 20 years of brake-component experience. Send the existing caliper identification, rotor measurements and bracket details for help matching this configuration.\u003c\/p\u003e","brand":"Wilwood","offers":[{"title":"Default Title","offer_id":67764010123442,"sku":"120-11870-RD","price":222.45,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0521\/8792\/2610\/files\/120-11870-RD-xl.jpg?v=1792508615","url":"https:\/\/pmbperformance.com\/products\/wilwood-120-11870-rd","provider":"PMB Performance","version":"1.0","type":"link"}