{"product_id":"wilwood-120-13298","title":"Wilwood Left Aero4-ST Four-Piston Caliper, 4.84-Sq-In Area \/ Thermlock \/ Thick Pads","description":"\u003cp\u003eThe left AERO4\/ST combines four differential 1.88\/1.62-inch bores with Thermlock insulating pistons. It uses a hard-anodized forged body, internal fluid transfer and the 6620 pad cavity. With a range spanning calipers, brake rotors, master cylinders, valves, fittings and brake lines, Wilwood Engineering designs and manufactures complete disc braking systems and their components. Bill Wood founded the Camarillo, California-based company in 1977 for a market now covering motorsport, street-performance and specialized applications.\u003c\/p\u003e\u003ch3\u003eTechnical Details\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eManufacturer part number: 120-13298. Component: Aero4 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\u003ePiston dust boots: not fitted.\u003c\/li\u003e\n\u003cli\u003eMounting: radial, 7.09-inch centers; left hand orientation. Mount holes: 0.45 inch; height: 2.09 inches.\u003c\/li\u003e\n\u003cli\u003eCompatible brake pad shape: 6620; choose the required compound for the brake system.\u003c\/li\u003e\n\u003cli\u003eBody: forged aluminum; finish: Type III anodize.\u003c\/li\u003e\n\u003cli\u003eCaliper weight: approximately 7.1 lb.\u003c\/li\u003e\n\u003cli\u003ePistons: 4 Thermlock; bore specification: 1.88\/1.62 inches. Effective piston area: 4.84 sq in.\u003c\/li\u003e\n\u003cli\u003eRotor compatibility: nominal width 1.25 inch; diameter 12.19–15.00 inches. Specified rotor-width limits: 1.10–1.28 inch.\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\u003c\/ul\u003e\u003ch3\u003eFitment \u0026amp; Compatibility\u003c\/h3\u003e\u003cp\u003eCheck the left-side rotor direction and the bracket’s 2.09-inch mount-height geometry. Verify the full 1.10–1.28-inch rotor-width range and pad dimensions; a stainless-piston AERO4 with different friction capacity is not automatically equivalent.\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":67764019888306,"sku":"120-13298","price":744.13,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0521\/8792\/2610\/files\/120-13297-xl_9666645a-83cd-4e0c-9fbe-5f5ef80c199c.jpg?v=1792508696","url":"https:\/\/pmbperformance.com\/products\/wilwood-120-13298","provider":"PMB Performance","version":"1.0","type":"link"}