Aitkeswk Rear A/C Block-Off Kit for 2014–2019 Suburban Tahoe Yukon Escalade — Aluminium Knobs & Stainless Hardware

Aitkeswk Rear A/C Block Off Kit permanently seals the rear air-conditioning lines on 2014–2019 Chevy, GMC and Cadillac full-size SUVs so you can stop refrigerant loss and restore reliable front A/C operation.

When a rear A/C circuit leaks or the rear evaporator fails in Suburban, Tahoe, Yukon and Escalade models from 2014–2019, the simplest long-term repair is to block off the rear system rather than repeatedly evacuate and recharge refrigerant. This kit supplies corrosion-resistant fittings and hardware engineered to close the rear refrigerant path and keep your front system sealed and fully functional without losing refrigerant from the rear lines.

How does this block-off kit stop refrigerant loss?

The kit replaces or seals the damaged rear-service ports and evaporator feed so refrigerant cannot escape through a faulty rear circuit. It uses aluminum alloy knobs and 304 stainless-steel fasteners for a durable, tight closure that resists corrosion and vibration.

• Aluminum alloy knobs provide a secure, long-lasting seal point.
• 304 stainless bolts and nuts prevent rust where pressure and moisture meet.
• HNBR washers offer reliable chemical compatibility with refrigerant systems.
• Designed to match the rear A/C fittings on 2014–2019 full-size GM SUVs.

What vehicles and years is this compatible with?

This block-off kit was built specifically for 2014–2019 model-year Chevrolet Suburban and Tahoe, GMC Yukon (Suburban 1500/2500) and Cadillac Escalade rear A/C piping. Confirm your vehicle year and rear A/C plumbing layout before ordering to ensure fitment.

• Chevrolet Suburban and Tahoe: 2014–2019 models.
• GMC Yukon and Suburban 1500/2500: 2014–2019 models.
• Cadillac Escalade: 2014–2019 models.
• Intended for sealing rear evaporator/feed lines, not a universal multi-vehicle kit.

How simple is installation and what comes in the box?

Installation is straightforward for a DIYer or any shop familiar with A/C plumbing: remove the damaged or leaking rear fitting, install the supplied block-off hardware, and torque to spec. The kit includes everything required for the mechanical seal so you won’t need to source extra fasteners on site.

• Included: 2x M8 flange nuts, 2x hexagon head bolts, 2 HNBR washers.
• No special tools beyond standard hand tools and torque wrench for proper clamping.
• Simple replacement procedure reduces time and refrigerant handling costs.
• Recommended: confirm O-ring condition and surrounding line integrity before final assembly.

Will blocking the rear system affect cabin comfort or vehicle systems?

Blocking the rear A/C circuit removes rear evaporator cooling, so rear-seat airflow will no longer be chilled by a separate rear system. The front A/C and heating systems continue to function normally and retain their refrigerant charge when the rear lines are sealed correctly.

• Front climate control performance remains intact after sealing rear lines.
• Rear passengers will rely on front vents or cabin airflow rather than a rear evaporator.
• Eliminates recurring refrigerant loss and the need for repeated recharge service.
• Not intended as a temperature-control upgrade—it's a reliable leak mitigation solution.

Who is this for: The Aitkeswk Rear A/C Block Off Kit is aimed at owners and technicians of 2014–2019 Chevy Suburban and Tahoe, GMC Yukon/Suburban 1500/2500, and Cadillac Escalade who want a dependable, corrosion-resistant method to stop refrigerant leakage from a failing rear A/C circuit. Choose this kit if you prefer a mechanical, long-term seal that preserves front-system refrigerant, reduces future A/C service visits, and uses durable stainless and alloy components for lasting performance.