Rear AC Block Offs for SUV's and Vans | Lifetime Repair
The Smart Fix for a Leaking Rear AC System
When your rear AC lines corrode, crack, or start leaking refrigerant, you have two options: spend $1400–$2400 replacing the entire line set (OEM) or about $300- $500 ACS, Rear AC Line Kits, or cap the system at the source for a fraction of the cost. Our Rear AC Block Off Kits are the permanent, professional-grade solution that thousands of SUV and van owners have chosen to restore their front AC performance and stop refrigerant loss for good.
Made in Flint, MI from precision-machined aerospace grade aluminum, every kit is engineered to fit the exact OEM fitting connections on your vehicle — not a universal adapter that barely seals. Direct fit. Permanent fix. Lifetime warranty.
Stop Refrigerant Loss Immediately
A leaking rear AC line bleeds refrigerant from the entire system, which means your front AC suffers too. By installing a block off kit at the front of the vehicle — where the rear lines originate — you isolate the damaged rear system completely. The front AC can then be properly recharged and will run at full efficiency again, even in the hottest conditions.
Save $300–$700 Compared to Line Replacement
Direct-fit rear AC line sets are the right repair when the lines are salvageable. But when lines are severely corroded, crimped, or discontinued, a block off kit is the smarter economic choice. Our kits typically run a fraction of what replacement line sets cost, and installation requires no specialized tools and no removal of major vehicle components.
Precision Machined for a Perfect Seal
Generic block off plugs are made to approximate sizes and rely on thread friction alone. Ours are machined to exact OEM fitting dimensions with proper sealing surfaces, so they hold against full system pressure without weeping. This is the difference between a permanent fix and a repair you'll be redoing in a year.
Images are for reference only. Always verify fitment using the compatibility table in each product listing before purchasing.
Fits the Most Popular SUVs and Vans
We carry direct-fit block off kits for GM full-size SUVs (Tahoe, Suburban, Yukon, Escalade), Chrysler and Dodge minivans (Grand Caravan, Town & Country, Routan), Ford SUVs and vans (Expedition, Explorer, Transit), and more. Use the fitment tables in each product listing to confirm compatibility with your year, make, and model.
Frequently Asked Questions
What makes your block off kits different from others?
Our Rear AC Block Off Kits are made in Flint, MI using high-grade materials and precision machining. Unlike generic kits, ours are designed for a perfect seal and long-term durability — even in high-pressure systems. They're a smart, permanent solution for bypassing a leaking rear AC system without compromising front AC performance.
Where are your rear AC block off kits installed?
Our rear AC block off kits are installed at the front of the vehicle, where the rear AC lines begin. This effectively isolates and disables the entire rear AC system — including the lines — without affecting front AC performance. No dashboard removal, no disassembly of major components.
Will blocking off the rear AC affect my front AC?
No — it improves it. Once the leaking rear system is isolated and blocked, you can properly recharge the front AC system. Many customers report noticeably better front AC performance after installation because the system is no longer losing refrigerant through the damaged rear lines.
Do I need a mechanic to install a block off kit?
Most installations are straightforward enough for a capable DIYer. The kits thread directly onto the existing OEM fittings at the front of the vehicle. No special tools required. That said, AC systems are pressurized — if your system still has refrigerant, you'll need to have it recovered by a shop before installation, which is an EPA requirement regardless of who does the work.
Is this a permanent fix or a temporary patch?
Permanent. Our block off kits are machined from aerospace grade aluminum with precision sealing surfaces. Once installed, they will outlast the vehicle. If you later decide to restore the rear AC system, the fittings can be removed and the rear lines reconnected — but most customers find they don't miss the rear AC once the front is blowing cold again.
Still have questions? View our full Technical FAQ page or call us at 1-810-606-8088, Mon–Fri 8AM–5PM EST.
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BK45075
Rear AC Block Off Kit for Honda Odyssey, Pilot & Acura MDX
Regular price $74.50 USDRegular price$87.50 USDSale price $74.50 USDSold out -
BK53055
Rear AC Block Off Journey 2009-2011
Regular price $70.28 USDRegular price$79.50 USDSale price $70.28 USDSale -
BK61075
Rear AC Block Off Windstar, Villager 93-98
Regular price $84.50 USDRegular price$96.50 USDSale price $84.50 USDSale
