{"product_id":"wilwood-120-7737-p","title":"Wilwood Left Front Polished GP310 Harley-Davidson Caliper (1984–1999), Four Stainless Pistons, and 1983 XR1000","description":"\u003cp\u003eThis polished left-front GP310 is a direct fork-leg caliper for the Harley-Davidson applications documented in Wilwood’s 1984–1999 range. It uses four stainless pistons with 1.25-inch bores. The polished surface is the finish option; its left-hand mounting and rotor dimensions remain essential to the working fit. 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: 120-7737-P\u003c\/li\u003e\n\u003cli\u003eCaliper type: GP310 Motorcycle Front (1984-1999)\u003c\/li\u003e\n\u003cli\u003eConstruction: Billet Aluminium\u003c\/li\u003e\n\u003cli\u003eFinish: Polish\u003c\/li\u003e\n\u003cli\u003ePiston bores: 1.25 \/ 1.25 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: 2.46 square inches\u003c\/li\u003e\n\u003cli\u003eDust boots: No\u003c\/li\u003e\n\u003cli\u003eNominal rotor width: 0.25 inch\u003c\/li\u003e\n\u003cli\u003eRotor thickness limits: 0.18–0.25 inches\u003c\/li\u003e\n\u003cli\u003eRotor diameter limits: 11.00–11.50 inches\u003c\/li\u003e\n\u003cli\u003eMounting style: Lug\u003c\/li\u003e\n\u003cli\u003eMounting side: Left Hand\u003c\/li\u003e\n\u003cli\u003eMounting centers: 3.44 inches\u003c\/li\u003e\n\u003cli\u003eMount height: 2.33 inch\u003c\/li\u003e\n\u003cli\u003eHydraulic inlet thread: 3\/8-24\u003c\/li\u003e\n\u003cli\u003eRequired pad shape: 6208\u003c\/li\u003e\n\u003cli\u003ePublished pad area: 3.65 square inches\u003c\/li\u003e\n\u003cli\u003ePublished pad volume: 0.63 cubic inches\u003c\/li\u003e\n\u003cli\u003eManufacturer-listed component weight: 2.0 lb\u003c\/li\u003e\n\u003cli\u003eSupplied brake components: Individual GP310 caliper with brake pads\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment \u0026amp; Compatibility\u003c\/h3\u003e\u003cp\u003eMatch the 3.44-inch mounting centers and 2.33-inch mount height to the correct fork. Check the rotor friction track, thickness and diameter before approving pad alignment. Springer and four-speed FL models are outside the stated application, and aftermarket forks or wheels require their own clearance verification. Wilwood also specifically includes the 1983 Harley-Davidson XR1000 front application; verify the same fork, rotor and mounting requirements.\u003c\/p\u003e\u003cp\u003ePMB Performance brings over 20 years of brake and parts experience to selection questions. Send the existing caliper reference and brake-package details for help checking compatibility.\u003c\/p\u003e\u003cp\u003eBrake-pad warning: Cancer and Reproductive Harm. \u003ca href=\"https:\/\/www.P65Warnings.ca.gov\"\u003ewww.P65Warnings.ca.gov\u003c\/a\u003e. This warning applies to the brake pads.\u003c\/p\u003e","brand":"Wilwood","offers":[{"title":"Default Title","offer_id":67764660437170,"sku":"120-7737-P","price":412.31,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0521\/8792\/2610\/files\/GP_310_Motorcycle-xl_38afed99-21e8-44c7-bb89-eec795de2de1.jpg?v=1792514566","url":"https:\/\/pmbperformance.com\/products\/wilwood-120-7737-p","provider":"PMB Performance","version":"1.0","type":"link"}