{"product_id":"alcalabkr5059d12-rear-brake-kit-jeep-jk-jl","title":"Alcon 2007+ Jeep JK-JL 330x22mm Rotors 4-Piston Calipers Rear Brake Kit (Includes Brake Lines) - Red","description":"\u003cp\u003eThe Alcon ALCALABKR5059D12 rear brake kit upgrades the 2007-2018 Jeep Wrangler JK and 2018-2023 Jeep Wrangler JL with 330x22mm rotors and 4-piston red calipers. This kit includes new brake lines and is designed to complement an Alcon front big brake kit or run on its own for a stronger, more consistent rear brake bias.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eALCALABKR5059D12 4-piston red rear calipers\u003c\/li\u003e\n\u003cli\u003e330x22mm rotors for increased thermal capacity\u003c\/li\u003e\n\u003cli\u003eIncludes new brake lines for a complete rear axle installation\u003c\/li\u003e\n\u003cli\u003eUp to 30 percent reduction in disc temperature rise versus stock\u003c\/li\u003e\n\u003cli\u003eUp to 26 percent reduction in pad work rate\u003c\/li\u003e\n\u003cli\u003eUp to 25 percent reduction in pedal effort\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eFitment\u003c\/strong\u003e\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eYears\u003c\/th\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eSubmodel \/ Notes\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2007-2018\u003c\/td\u003e\n\u003ctd\u003eJeep\u003c\/td\u003e\n\u003ctd\u003eWrangler\u003c\/td\u003e\n\u003ctd\u003eJK\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2018-2023\u003c\/td\u003e\n\u003ctd\u003eJeep\u003c\/td\u003e\n\u003ctd\u003eWrangler\u003c\/td\u003e\n\u003ctd\u003eJL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eAlcon\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eManufacturer Part Number\u003c\/th\u003e\n\u003ctd\u003eALABKR5059D12\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eProduct Type\u003c\/th\u003e\n\u003ctd\u003eBig Brake Kits\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCondition\u003c\/th\u003e\n\u003ctd\u003eNew\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRotor Diameter\u003c\/th\u003e\n\u003ctd\u003e330mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRotor Thickness\u003c\/th\u003e\n\u003ctd\u003e22mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePiston Count\u003c\/th\u003e\n\u003ctd\u003e4 per caliper\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCaliper Color\u003c\/th\u003e\n\u003ctd\u003eRed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCaliper Material\u003c\/th\u003e\n\u003ctd\u003eForged aluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBrake Lines\u003c\/th\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eWhat's Included\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eTwo ALCALABKR5059D12 4-piston rear calipers\u003c\/li\u003e\n\u003cli\u003eTwo 330x22mm rotors\u003c\/li\u003e\n\u003cli\u003eMounting brackets and hardware\u003c\/li\u003e\n\u003cli\u003eBrake lines and pre-loaded performance pads\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eAbout Alcon\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eAlcon engineers performance brake systems and service components for road, off-road, motorsport, defense, and specialized vehicle applications. Exact caliper, rotor, pad, hardware, fitment, and clearance requirements vary by part number.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eRelated Parts\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/alcalabkf5459ax02-front-brake-kit-jeep-jk\"\u003eAlcon 2007+ Jeep JK 350x32mm Rotors 4-Piston Red Calipers Front Brake Upgrade Kit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/alcalapns4450x703-4-rear-brake-pad-set-jeep-wrangler\"\u003eAlcon 2007+ Jeep JK CIR50 AV1 Brake Pad Set - Rear\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/alcon\"\u003eShop the complete Alcon collection\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill Alcon ALABKR5059D12 fit my vehicle?\u003c\/strong\u003e\u003cbr\u003eThis kit is listed for 2007-2018 Jeep Wrangler JK, 2018-2023 Jeep Wrangler JL. Confirm the complete trim, factory brake package, hub and knuckle configuration, and every application note before ordering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included with Alcon ALABKR5059D12?\u003c\/strong\u003e\u003cbr\u003eThe verified package includes Two ALCALABKR5059D12 4-piston rear calipers; Two 330x22mm rotors; Mounting brackets and hardware; Brake lines and pre-loaded performance pads. Only components explicitly listed for this exact part number are included.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich axle does this Alcon brake kit upgrade?\u003c\/strong\u003e\u003cbr\u003eThis configuration is for the axle position stated in the product title and specifications. Do not substitute a front, rear, or complete-vehicle kit with a similar rotor diameter.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill my current wheels clear this Alcon brake kit?\u003c\/strong\u003e\u003cbr\u003eWheel diameter alone does not establish clearance. Verify spoke profile, barrel diameter, offset, caliper envelope, rotor size, and the current Alcon wheel-clearance template before ordering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes an Alcon big brake kit require bleeding and bedding?\u003c\/strong\u003e\u003cbr\u003eHydraulic brake work requires correct installation, bleeding, leak inspection, torque verification, and the pad and rotor bedding procedure supplied for the exact components. Professional installation is recommended when the installer is not qualified for brake-system service.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstallation Instructions\u003c\/strong\u003e\u003c\/p\u003e\u003col\u003e\n\u003cli\u003eApply the parking brake and raise the vehicle on a lift or axle stands.\u003c\/li\u003e\n\u003cli\u003eRemove the rear wheels and disconnect the brake hose from the hard line.\u003c\/li\u003e\n\u003cli\u003eRemove the factory rear caliper and brake disc.\u003c\/li\u003e\n\u003cli\u003eFit the new caliper mounting bracket to the axle using the factory bolts.\u003c\/li\u003e\n\u003cli\u003eInstall the new ALCALABKR5059D12 rotor onto the hub.\u003c\/li\u003e\n\u003cli\u003ePosition the caliper over the rotor and secure it to the bracket with the bleed screw uppermost.\u003c\/li\u003e\n\u003cli\u003eConnect the included brake line to the caliper and torque the banjo bolt to specification.\u003c\/li\u003e\n\u003cli\u003eBleed the brake system with DOT 4 fluid and check for leaks.\u003c\/li\u003e\n\u003c\/ol\u003e\u003cp\u003e\u003cstrong\u003eImportant Disclosures\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eCalifornia Proposition 65 warning: this product can expose you to chemicals known to the State of California to cause cancer and reproductive harm.\u003c\/li\u003e\u003c\/ul\u003e","brand":"Alcon","offers":[{"title":"Default Title","offer_id":46135039426639,"sku":"ALCALABKR5059D12","price":2108.77,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1062\/7920\/files\/alcon-alcalabkr5059d12-jeep-jk-jl-rear-brake-kit-2.webp?v=1784644261","url":"https:\/\/www.blackopsautoworks.com\/products\/alcalabkr5059d12-rear-brake-kit-jeep-jk-jl","provider":"Black Ops Auto Works","version":"1.0","type":"link"}