{"product_id":"wilwood-120-16683-y","title":"Wilwood Yellow FNSL4R Caliper, 1.38\/1.38-Inch Piston Bores","description":"\u003cp\u003eWilwood supplies this FNSL4R brake caliper with a yellow finish. Its 5.98-inch mounting span and 0.95-inch-wide rotor configuration are key checks when selecting a single caliper for an existing system. 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. The Forged Narrow Superlite 4R is a four-piston radial caliper using the 7416 pad outline. Its nominal 0.95-inch-wide rotor configuration must be matched to the mounting height and hydraulic balance of the installation. Wheel clearance is determined by the entire caliper-and-bracket envelope.\u003c\/p\u003e\u003ch3\u003eTechnical Details\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eManufacturer part number: 120-16683-Y\u003c\/li\u003e\n\u003cli\u003eComponent: Forged Narrow Superlite 4 Radial Mount; one individual caliper\u003c\/li\u003e\n\u003cli\u003ePlacement: Universal mounting orientation; verify axle position\u003c\/li\u003e\n\u003cli\u003eConstruction and finish: Forged aluminum; Yellow Powder Coat\u003c\/li\u003e\n\u003cli\u003ePistons: 4; stainless steel; bore dimensions 1.38\/1.38 inches\u003c\/li\u003e\n\u003cli\u003eHydraulic piston area: 3.00 square inches\u003c\/li\u003e\n\u003cli\u003eDust boots: No\u003c\/li\u003e\n\u003cli\u003eBrake pad shape: 7416; shape number does not specify a friction compound\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: 1.45 inches\u003c\/li\u003e\n\u003cli\u003eHydraulic inlet thread: 1\/8-27 NPT\u003c\/li\u003e\n\u003cli\u003eNominal rotor width: 0.95 inches\u003c\/li\u003e\n\u003cli\u003eRotor width range: 0.89–0.99 inches\u003c\/li\u003e\n\u003cli\u003eRotor diameter range: 11.42–14.00 inches\u003c\/li\u003e\n\u003cli\u003eCaliper weight reference: 5.0 lb\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment \u0026amp; Compatibility\u003c\/h3\u003e\u003cp\u003eChoose this component around the existing rotor and bracket, including the 0.95-inch nominal rotor width and 5.98-inch mounting span. Axle placement is determined by the engineered brake package, not by a generic caliper designation. Compare pad support, caliper offset and piston volume with the brake being replaced. Wheel size alone cannot confirm spoke or barrel clearance.\u003c\/p\u003e\u003cp\u003e\u003ca href=\"https:\/\/www.wilwood.com\/Calipers\/CaliperProd?itemno=120-16683-Y\"\u003eWilwood caliper specifications\u003c\/a\u003e · \u003ca href=\"https:\/\/www.wilwood.com\/PDF\/Flyers\/fl256.pdf\"\u003eWilwood technical reference\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003eShare the vehicle and the brake system actually installed with PMB Performance before ordering if the configuration is uncertain. We draw on over 20 years of parts and fitment experience when comparing the rotor, mount and caliper.\u003c\/p\u003e","brand":"Wilwood","offers":[{"title":"Default Title","offer_id":67764053082290,"sku":"120-16683-Y","price":426.03,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0521\/8792\/2610\/files\/Forged_Narrow_Superlite_4_Radial_Mt_Yellow-xl.jpg?v=1792509108","url":"https:\/\/pmbperformance.com\/products\/wilwood-120-16683-y","provider":"PMB Performance","version":"1.0","type":"link"}