Skip to main content
How-tos

by Scott Ammerman
Quadratec Channel Correspondent


If you spend a lot of time under your Jeep, you start to notice things that could (and should) be a little better protected. Nestled up inside the frame, between the exhaust and rear driveshaft, sits your evaporative emissions control canister - just waiting to be crushed, pierced or ripped off.

I haven’t bottomed mine out on a rock yet, but I have had to cut a thick tree branch out from under my Rubicon that was jammed between the exhaust and canister. I could have easily torn it clean off, causing damage to the canister, sensor or lines in the process.

It’s not a very practical place for something made out of plastic to live, but adding some vital protection isn’t very difficult.

While replacement evap canisters are a hot item here at Quadratec, I think most folks are happier adding a quick upgrade than making a repair because of damage on the trail.

Here comes the Quadratec Evap Skid Plate. Installation time is right around 20 minutes, and only requires a handful of basic tools. We used a lift, but this could easily be done on the ground with a creeper without even having to jack up your Wrangler.

What you will need:

  • 16mm socket
  • 10” extension is helpful, but not needed
  • 6mm Allen bit or the provided Allen key
  • Safety glasses (actually wear them this time, danger of falling rust and junk)

Start by removing the 16mm bolt holding the rear canister bracket to the crossmember. The instructions tell you to remove the lines and wiring, but I was able to sneak the rear bracket into place without doing any of that extra work. You just need to hook it up and over the lines and rotate it in with the bolt hole in the right place. If you don’t have enough slack in the lines, refer to the provided instructions.

Run the factory bolt back in, but don’t tighten it all the way down just yet.

The front bracket is where the adjustment comes from. Remove the front two 16mm bolts and slide the bracket behind the mounting tab.

Install and tighten the two front factory bolts, making sure the bracket has enough clearance on both sides before fully tightening.

Mount the front of the skid plate to the bracket using the provided 16mm bolts and washers. Before fully tightening, make sure the rear bracket lines up with the two countersunk holes in the rear of the skid plate. Tighten the rear canister mounting bolt now, while you have an easy shot at the bolt.

Install and tighten the two 6mm Allen bolts in the rear of the skid plate, then tighten the front 16mm bolts.

With everything installed, you’re ready to hit the trail again - with a little extra peace of mind!

Top Jeep Articles

  • September 28, 2026
  • 6 min read
Jeep Hardtop Q&A: Top Questions Before You Upgrade
Hardtop Questions, Real Answers — Everything You Need to Know Before You Go Hardtop
READ MORE
  • September 25, 2026
  • 3 min read
Jeep Vehicle 2 Letter Model Designations / Model Codes
From wartime Willys prototypes and early CJs to today’s JL Wrangler and JT Gladiator, this guide decodes the letters behind Jeep’s most familiar vehicles.
READ MORE
  • September 24, 2026
  • 3 min read
Five Small Jeep Adventures You Can Have Today
You do not need a new lift kit, a week off, or a famous trail to remember why you bought it. Start with an afternoon and take the long way home.
READ MORE
  • September 23, 2026
  • 5 min read
Why Are My Jeep Seat Covers Fading And How Can I Prevent It?
Sun exposure gets most of the blame, but cleaning products, salt and everyday wear can also change a cover’s color. Here’s how to spot the cause and slow the fade.
READ MORE
  • September 17, 2026
  • 6 min read
How To Do An Oil Change On A 2018 And Newer Jeep Wrangler JL 3.6L Pentastar V6
How to do an Oil Change on a 2018 and newer Jeep Wrangler JL 3.6L Pentastar V6
READ MORE
  • September 15, 2026
  • 5 min read
Which Jeep Wrangler Axles Do I Have?
For anything from simply changing out the differential covers, to replacing the entire axle, it is always good to know exactly what you have under the vehicle. But not everyone knows, especially if you bought the vehicle used.
READ MORE
  • September 14, 2026
  • 4 min read
Jeep Named "Official 4WD of Moab" in New Two-Year City Partnership
Moab's city council approved a $250,000 sponsorship deal with Jeep, formalizing a 60-year relationship built on trail stewardship, loaned vehicles, and Easter Jeep Safari.
READ MORE