{"product_id":"wilwood-120-16970-bk","title":"Wilwood Black AeroDM Front Left Caliper — 5.04-Inch Mount and 1.25-Inch Rotor Width for Toyota 4Runner (2015–2021)","description":"\u003cp\u003eThis black Wilwood AeroDM front left brake caliper for Toyota 4Runner uses a 5.04-inch lug mount and the 1.25-inch rotor-width configuration. It is sold as one caliper, with its piston and mounting specification selected for the complete brake assembly. Founded by Bill Wood in 1977, Wilwood Engineering is based in Camarillo, California. It designs and manufactures disc brake systems and components, including calipers, brake rotors, master cylinders, valves, fittings and brake lines, for motorsport, street-performance and specialized applications. Components must be selected to suit the complete brake system. AeroDM is a forged six-piston caliper using a vehicle-specific direct lug mount. It is intended for the matching Wilwood rotor and conversion geometry, rather than the stock rotor by itself. Verify the package, side and lug offset before ordering a replacement.\u003c\/p\u003e\u003ch3\u003eTechnical Details\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eManufacturer part number: 120-16970-BK\u003c\/li\u003e\n\u003cli\u003eComponent: AeroDM Lug Mount; one individual caliper\u003c\/li\u003e\n\u003cli\u003ePlacement: Front Left\u003c\/li\u003e\n\u003cli\u003eConstruction and finish: Forged aluminum; Black Powder Coat\u003c\/li\u003e\n\u003cli\u003eMounting interface: Lug; mounting centers 5.04 inches\u003c\/li\u003e\n\u003cli\u003eMounting-hole diameter: 0.59 inches\u003c\/li\u003e\n\u003cli\u003eHydraulic inlet thread: 1\/8-27 NPT\u003c\/li\u003e\n\u003cli\u003ePistons: 6; stainless steel; bore dimensions 1.75\/1.50\/1.50 inches\u003c\/li\u003e\n\u003cli\u003eHydraulic piston area: 5.94 square inches\u003c\/li\u003e\n\u003cli\u003eDust boots: No\u003c\/li\u003e\n\u003cli\u003eBrake pad shape: 6617; shape number does not specify a friction compound\u003c\/li\u003e\n\u003cli\u003eNominal rotor width: 1.25 inches\u003c\/li\u003e\n\u003cli\u003eRotor width range: 1.10–1.28 inches\u003c\/li\u003e\n\u003cli\u003eRotor diameter range: 12.19–13.38 inches\u003c\/li\u003e\n\u003cli\u003eCaliper weight reference: 8.9 lb\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment \u0026amp; Compatibility\u003c\/h3\u003e\u003cp\u003eReplacement caliper for the Wilwood AeroDM front conversion on Toyota 4Runner (2015–2021). The matching kit uses a 13.31 × 1.26-inch Wilwood rotor. Match the exact 5.04-inch lug mount, rotor centering and side; the caliper is not a stock 4Runner brake conversion on its own.\u003c\/p\u003e\u003cp\u003e\u003ca href=\"https:\/\/www.wilwood.com\/Calipers\/CaliperProd?itemno=120-16970-BK\"\u003eWilwood caliper specifications\u003c\/a\u003e · \u003ca href=\"https:\/\/www.wilwood.com\/Pdf\/Misc\/Racerpricelist.pdf\"\u003eWilwood technical reference\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003eA correct caliper choice begins with the complete brake arrangement. PMB Performance has over 20 years of parts and fitment experience; send the mounting geometry and rotor dimensions for help with your selection.\u003c\/p\u003e","brand":"Wilwood","offers":[{"title":"Default Title","offer_id":67764059799730,"sku":"120-16970-BK","price":796.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0521\/8792\/2610\/files\/120-16969-BK-xl_c1b0e40f-abd9-495f-bfc0-4952f76d734c.jpg?v=1792509210","url":"https:\/\/pmbperformance.com\/products\/wilwood-120-16970-bk","provider":"PMB Performance","version":"1.0","type":"link"}