{"product_id":"wilwood-120-16463","title":"Wilwood Anodized Left XRZ4R-ST Brake Caliper with Thermlock Pistons","description":"\u003cp\u003eThe 5.98-inch radial attachment distinguishes this left Wilwood XRZ4R-ST brake caliper. This individual anodized unit is built for the 0.81-inch-wide rotor configuration and requires accurate alignment with the mating rotor and bracket. XRZ4R-ST is a forged four-piston radial race caliper with Thermlock pistons and an X-shaped center bridge. It uses 10420-shape pads and a 3\/8-24 hydraulic inlet. Confirm the brake bracket and piston volume when replacing another radial caliper. Based in Camarillo, California, Wilwood Engineering has its origins in the company Bill Wood founded in 1977. Its designs and manufactured disc brake products cover calipers and rotors alongside master cylinders, valves, fittings and lines. Motorsport, street-performance and specialized installations each require components selected for the complete system.\u003c\/p\u003e\u003ch3\u003eTechnical Details\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eManufacturer part number: 120-16463\u003c\/li\u003e\n\u003cli\u003eComponent: XRZ4R Radial Mount; one individual caliper\u003c\/li\u003e\n\u003cli\u003ePlacement: Left\u003c\/li\u003e\n\u003cli\u003eConstruction and finish: Forged aluminum; Type III Anodize\u003c\/li\u003e\n\u003cli\u003eMounting interface: Radial; mounting centers 5.98 inches\u003c\/li\u003e\n\u003cli\u003eMounting-hole diameter: 0.39 inches\u003c\/li\u003e\n\u003cli\u003eMount height: 1.63 inches\u003c\/li\u003e\n\u003cli\u003eHydraulic inlet thread: 3\/8-24\u003c\/li\u003e\n\u003cli\u003ePistons: 4; Thermlock insulated; bore dimensions 1.88\/1.75 inches\u003c\/li\u003e\n\u003cli\u003eHydraulic piston area: 5.18 square inches\u003c\/li\u003e\n\u003cli\u003eDust boots: No\u003c\/li\u003e\n\u003cli\u003eBrake pad shape: 10420; shape number does not specify a friction compound\u003c\/li\u003e\n\u003cli\u003eNominal rotor width: 0.81 inches\u003c\/li\u003e\n\u003cli\u003eRotor width range: 0.75–0.90 inches\u003c\/li\u003e\n\u003cli\u003eRotor diameter range: 11.75–14.00 inches\u003c\/li\u003e\n\u003cli\u003eCaliper weight reference: 5.2 lb\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment \u0026amp; Compatibility\u003c\/h3\u003e\u003cp\u003eCheck bracket location and rotor sweep using the installation drawing; 5.98-inch radial mounting alone does not establish a vehicle fit. Use the left-hand caliper and keep the bleed arrangement in the specified orientation. Use the 1.88\/1.75-inch piston-bore specification when reviewing hydraulic balance, and verify hose routing and wheel clearance.\u003c\/p\u003e\u003cp\u003e\u003ca href=\"https:\/\/www.wilwood.com\/Calipers\/CaliperProd?itemno=120-16463\"\u003eWilwood caliper specifications\u003c\/a\u003e · \u003ca href=\"https:\/\/www.wilwood.com\/PDF\/Flyers\/fl528.pdf\"\u003eWilwood technical reference\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003ePMB Performance brings over 20 years of parts and fitment experience to brake component selection. A photograph of the existing brake and its mounting measurements helps us check the required configuration.\u003c\/p\u003e","brand":"Wilwood","offers":[{"title":"Default Title","offer_id":67764050919602,"sku":"120-16463","price":799.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0521\/8792\/2610\/files\/120-16460-xl_5e15f0dd-4968-4d45-956a-7ef40c563803.jpg?v=1792509079","url":"https:\/\/pmbperformance.com\/products\/wilwood-120-16463","provider":"PMB Performance","version":"1.0","type":"link"}