{"product_id":"wilwood-120-13263","title":"Wilwood Right FSL4R-ST Thermlock Caliper, 1.88\/1.75-Inch Bores \/ 1.25-inch Rotor Width","description":"\u003cp\u003eThermlock pistons distinguish this right-hand Superlite 4R\/ST from the standard stainless-piston configuration. It uses four differential bores of 1.88 and 1.75 inches, with a 1.25-inch nominal rotor-width cavity in a hard-anodized forging. Wilwood Engineering designs and manufactures disc brake systems for motorsport, street-performance and specialized applications. Bill Wood founded the company in 1977; it is based in Camarillo, California, and its component range includes calipers, brake rotors, master cylinders, valves, fittings and brake lines.\u003c\/p\u003e\u003ch3\u003eTechnical Details\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eManufacturer part number: 120-13263. Component: Forged Superlite 4 Radial Mount 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\u003e5.98-inch radial mounting pattern, right hand; mounting height 1.63 inches and hole size 0.39 inch.\u003c\/li\u003e\n\u003cli\u003eCaliper weight: approximately 5.5 lb.\u003c\/li\u003e\n\u003cli\u003e4 Thermlock pistons with 1.88\/1.75-inch bore groups. The specified effective area is 5.18 sq in.\u003c\/li\u003e\n\u003cli\u003eThe rotor channel is specified for 1.25-inch nominal width. Rotor outside diameter: 11.75 to 14.00 inches. Specified rotor-width limits: 1.15–1.35 inch.\u003c\/li\u003e\n\u003cli\u003ePiston dust boots: not fitted.\u003c\/li\u003e\n\u003cli\u003eBrake pad profile 7420; select friction material for the actual operating conditions.\u003c\/li\u003e\n\u003cli\u003eHydraulic inlet thread: 1\/8-27 NPT. Use a fitting with the correct thread and sealing seat.\u003c\/li\u003e\n\u003cli\u003eType III anodize finish on a forged aluminum caliper body.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment \u0026amp; Compatibility\u003c\/h3\u003e\u003cp\u003eSpecify the Thermlock arrangement when matching an existing competition caliper. Check 5.98-inch radial mounting, rotor width within 1.15–1.35 inches and the chosen pad compound’s temperature requirements.\u003c\/p\u003e\u003cp\u003ePMB Performance brings more than 20 years of experience to brake-part selection. Include the existing caliper, rotor and mounting details when requesting help with this assembly.\u003c\/p\u003e","brand":"Wilwood","offers":[{"title":"Default Title","offer_id":67764017758386,"sku":"120-13263","price":485.02,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0521\/8792\/2610\/files\/Forged_Superlite_4-ST_Radial_MT-xl.jpg?v=1792508663","url":"https:\/\/pmbperformance.com\/products\/wilwood-120-13263","provider":"PMB Performance","version":"1.0","type":"link"}