How to Install a Morrflate Tire Inflation System in the Back of a Jeep JK

If you wheel your Jeep JK off-road with any regularity, airing down and back up is part of the routine. The Morrflate system — a multi-hose inflation and deflation kit designed to connect to all four tires simultaneously — has become a popular solution for JK owners who want to streamline that process. Installing it in the rear of the JK makes sense for most builds, but how you route it, mount it, and power it involves more decisions than it might first appear.

What the Morrflate System Actually Does

The Morrflate is a manifold-style tire management system. Using a quad connection setup, it runs hoses to all four tires at once and connects to a portable air compressor or onboard air source. Instead of moving from tire to tire one at a time, you connect all four simultaneously and inflate or deflate together.

The system doesn't include a compressor — it's the distribution and valve assembly. That means your air source (ARB, VIAIR, cheap 12V unit, or a dedicated onboard setup) determines how fast the job gets done. The Morrflate just routes the air efficiently.

Why Jeep JK Owners Mount It in the Rear

The JK's rear cargo area is the practical choice for most installations. The reasons are straightforward:

• The spare tire is already back there, and tire gear lives in the same zone
• Access to the rear is easy when you're parked on the trail
• Mounting hardware or a storage solution keeps hoses from tangling inside the cab
• Rear placement keeps the compressor (if mounted there) and the Morrflate in one organized area

Some owners mount the Morrflate to the rear cargo floor, others to the side wall, the back of the rear seat, or inside a purpose-built storage drawer or cargo organizer. There's no single right answer — it depends on your cargo setup and how much interior space you've already committed to recovery gear, tools, or camping equipment.

What You'll Need for the Install 🔧

Before you start, gather your materials. The specific hardware depends on your mounting method, but generally:

• Morrflate Quad kit with all four hoses and the manifold
• A mounting surface or bracket — many owners use a simple piece of aluminum angle or a small panel of UHMW plastic
• Velcro, zip ties, or rubber-lined clamps to keep hoses organized
• Drill and appropriate drill bits if you're mounting to metal or plastic panels
• Short bolts or M5/M6 hardware for securing the manifold bracket (thread size depends on your mounting approach)
• Optional: a hook-and-loop storage strap or pouch for the hoses themselves

If you're also mounting an air compressor in the rear — common with setups like the ARB Twin or a VIAIR 400C — plan the layout so both the compressor and Morrflate are accessible without rearranging cargo every time.

Step-by-Step: General Rear Installation Process

1. Choose your mounting location. The most common spots inside a JK rear are the driver-side cargo wall, the floor area near the spare tire well, or behind the rear seat. Measure what you have and make sure hose length reaches all four tires when parked flat.

2. Route hose runs in your head first. JK hose routing from the rear usually goes: two hoses feed forward along the rocker panels or under the door sill trim toward the front tires, two feed straight out toward the rear. Before drilling or attaching anything, do a dry run with all four hoses connected and tires reached — Morrflate hoses are a fixed length, so positioning your manifold too far from the vehicle center can leave you short on one end.

3. Mount the manifold. Use a small bracket or flat mounting surface rated for the weight. If you're drilling into the cargo floor or wall, use grommets or sealant around penetrations to prevent moisture intrusion. Some owners use existing bolt holes in the cargo floor rather than creating new ones.

4. Secure the hoses for storage. The quad hoses are the messiest part of any Morrflate setup. Hook-and-loop cable wraps, a small canvas pouch, or a dedicated hose reel keeps them from becoming a tangle every time you open the rear hatch.

5. Connect to your air source. The Morrflate connects via a standard quick-disconnect fitting. Confirm compatibility with your compressor's output fitting before finalizing the mount location — a short whip hose may be needed depending on where your compressor sits relative to the manifold.

Variables That Change the Install 🚙

Not every JK rear install looks the same. Several factors shape what yours will require:

Where Individual Situations Diverge

The basic install is accessible to a confident DIYer with basic tools. But how clean, permanent, or functional your setup ends up depends on choices that are specific to your build. A JK with a full cargo drawer system, a rooftop tent, and a swing-out carrier presents entirely different real estate than a stock-interior two-door used for weekend runs. The hose reach that works from one mounting spot in a clean interior may fall short in a loaded build.

Your specific compressor, your typical trail setup, and how much you've already modified the rear of the JK are the pieces that determine where the Morrflate actually goes — and how much additional hardware you'll need to make it work cleanly.