haizusai Rear AC Block Off Kit for Ford & Lincoln — Aluminum Block with Seal Washers and O-Rings, Direct-Fit

The haizusai Rear AC Block Off Kit with seal washers is a direct-fit aluminum block and gasket set designed to safely close off rear air conditioning lines on compatible Ford and Lincoln models.

If you've removed the rear HVAC evaporator or are decommissioning the rear air system, this kit provides a durable, leak-resistant closure that replaces the factory rear AC connection without cutting or modifying lines. Built of corrosion-resistant aluminum with included seal washers and O-rings, the assembly is sized to work with many late-model Ford and Lincoln vehicles for a straightforward plug-and-play replacement.

Which vehicles will this rear AC block kit fit?

This kit fits a wide range of Ford and Lincoln models from select model years onward, making it useful for many common rear AC eliminations. Always verify fitment against your vehicle's model year and rear AC line configuration before purchase.

• Direct fit for Ford Expedition (2007–current) and Lincoln Navigator (2007–current).
• Fits Ford Flex (2010 and up) and Explorer (2010 and up).
• Compatible with Lincoln MKT (2009–2016) and some universal applications like Ford E-Series and Dodge Durango.

How is the haizusai block constructed and why does that matter?

The block is machined from aluminum alloy, chosen for strength and resistance to corrosion in automotive systems. A solid-metal block limits deformation and, when paired with the included washers and O-rings, helps maintain a secure seal under typical cabin pressures.

• Premium aluminum alloy body resists rust and long-term wear.
• Precision-machined ports align with factory fittings for a tight fit.
• Includes seal washers and O-rings to reduce the risk of refrigerant or fluid leaks.

What does installation involve and will I need special tools?

Installation is designed to be plug-and-play for compatible vehicles and typically requires basic hand tools—no line cutting or welding. The block replaces the factory rear AC connection and installs using the supplied seals to achieve a leak-resistant closure.

• Simple replacement of the factory rear AC fitting; no line modification required.
• Common tools like wrenches and pliers are usually sufficient.
• All necessary seal washers and O-rings included to finish the job.

Can this kit be used for other rear AC elimination projects?

Yes—beyond the listed Ford and Lincoln models, the kit is suitable for a variety of rear AC block-off jobs when dimensions and fittings match. It’s often used when a rear evaporator is removed or when converting a vehicle without modifying factory lines.

• Works as a universal block when port sizes and thread types are compatible.
• Commonly applied in rear AC removals on E-Series and certain Dodge SUV conversions.
• Offers a reversible and non-destructive solution if future reinstallation is desired.

Who this is for: Technicians, DIY owners, and conversion shops that need a reliable, non-destructive solution for closing rear AC lines on compatible Ford and Lincoln vehicles. If you want a corrosion-resistant, ready-to-install block with all necessary seals included, this kit is geared toward straightforward rear AC elimination projects where maintaining a tight, leak-resistant connection matters.