{"product_id":"aitkeswk-rear-a-c-block-off-kit-for-2014-2019-suburban-tahoe-yukon-escalade-aluminum-knobs-hnbr-seal","title":"Aitkeswk Rear A\/C Block Off Kit for 2014–2019 Suburban Tahoe Yukon Escalade — Aluminum Knobs \u0026 HNBR Seal","description":"\u003cp\u003e\u003cstrong\u003eAitkeswk Rear A\/C Block Off Kit permanently seals the rear air conditioning lines on 2014–2019 Chevy, GMC and Cadillac full-size SUVs to stop refrigerant loss and restore reliable front A\/C operation.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIf the rear evaporator or lines in your 2014–2019 Chevy Suburban\/Tahoe, GMC Yukon\/Suburban, or Cadillac Escalade are leaking or nonfunctional, this block off kit gives you a durable, serviceable way to isolate the rear system without losing refrigerant from the front circuits. The kit includes precision aluminum knobs, 304 stainless hardware and HNBR washers for a corrosion-resistant, long-lasting seal. It’s intended for technicians or experienced DIYers who want a clean, reversible solution to an otherwise costly rear A\/C repair.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this kit stop refrigerant loss while letting the front A\/C run?\u003c\/h3\u003e\n\n\u003cp\u003eThe kit blocks the rear evaporator or service ports so refrigerant can’t flow into a damaged rear circuit. That isolates the leak while preserving refrigerant in the front system so the front evaporator and compressor function normally.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eSeals rear lines with aluminum alloy knobs and HNBR washers.\u003c\/li\u003e\n  \u003cli\u003ePrevents refrigerant migration into a leaking rear evaporator.\u003c\/li\u003e\n  \u003cli\u003eMakes the front system independent of rear circuit failures.\u003c\/li\u003e\n  \u003cli\u003eRemovable hardware allows future restoration of the rear system.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat vehicles and model years are compatible with this kit?\u003c\/h3\u003e\n\n\u003cp\u003eThis block off kit is built to fit 2014–2019 model-year full-size GM SUVs. Confirm compatibility by checking your vehicle’s service port locations and model year before ordering.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e2014–2019 Chevy Suburban and Tahoe.\u003c\/li\u003e\n  \u003cli\u003e2014–2019 GMC Yukon and Yukon XL, Suburban 1500\/2500 models.\u003c\/li\u003e\n  \u003cli\u003e2014–2019 Cadillac Escalade.\u003c\/li\u003e\n  \u003cli\u003eVerify service port fitment against the vehicle’s rear A\/C plumbing before installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat materials and parts are included, and why do they matter?\u003c\/h3\u003e\n\n\u003cp\u003eThe kit uses corrosion-resistant materials to withstand road salts and heat cycles. Included fasteners and washers provide a reliable mechanical seal and long service life compared with makeshift caps.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eAluminum alloy knobs resist corrosion and provide durable sealing surfaces.\u003c\/li\u003e\n  \u003cli\u003e304 stainless steel bolts and nuts for strength and rust resistance.\u003c\/li\u003e\n  \u003cli\u003eHNBR washers for temperature-resistant sealing against refrigerant and oils.\u003c\/li\u003e\n  \u003cli\u003eKit contents: 2x M8 flange nuts, 2x hex head bolts, 2x HNBR washers—ready for installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow difficult is installation and what should I expect?\u003c\/h3\u003e\n\n\u003cp\u003eInstallation is straightforward for someone familiar with A\/C plumbing and basic hand tools. The kit replaces damaged or missing rear fittings; the work typically involves removing the failed component, seating the HNBR washer, and torquing the included stainless hardware to specification.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eSimple hand tools required—no special refrigeration tooling for the block off itself.\u003c\/li\u003e\n  \u003cli\u003eDesigned for a direct swap into existing rear A\/C line locations.\u003c\/li\u003e\n  \u003cli\u003eRetains the option to reinstall a functional rear A\/C circuit later.\u003c\/li\u003e\n  \u003cli\u003eIf unsure, have a qualified technician perform the install to ensure proper sealing and refrigerant integrity.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho this is for: The Aitkeswk Rear A\/C Block Off Kit is aimed at owners and mechanics of 2014–2019 Chevy Suburban\/Tahoe, GMC Yukon\/Suburban, and Cadillac Escalade who want a cost-effective, durable way to isolate a leaking or non-repairable rear A\/C circuit. It’s a practical solution when restoring rear A\/C isn’t feasible immediately, when you want to preserve the front system’s refrigerant, or when you need a reversible, serviceable seal that stands up to corrosion and heat. Before purchasing, confirm this kit’s fit for your vehicle’s rear A\/C plumbing and contact our support if you need fitment help or have questions about installation.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Will this kit let my front A\/C keep working?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. It isolates the rear circuit so refrigerant stays in the front system and the front A\/C can continue operating.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is this reversible if I repair the rear A\/C later?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The kit uses removable hardware so you can restore the rear system when ready.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Aitkeswk","offers":[{"title":"Default Title","offer_id":48084322418846,"sku":"B0FHWFYW14","price":30.48,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/aitkeswk-rear-ac-block-off-kit-front-assembly.jpg?v=1785849850","url":"https:\/\/northtrailauto.ca\/products\/aitkeswk-rear-a-c-block-off-kit-for-2014-2019-suburban-tahoe-yukon-escalade-aluminum-knobs-hnbr-seal","provider":"North Trail Auto","version":"1.0","type":"link"}