Toyota 4Runner Engine Splash Guard Replacement

Toyota 4Runner Engine Splash Guard Replacement

5th Gen 4Runner Engine Splash Guard Replacement by Rad Rubber Design

If you are looking for new rubber guards, you have found the right company. Rad Rubber Design makes a wide variety of splash guards for multiple Toyota trucks. Let’s jump in!

Factory Toyota Engine Splash Guards?

There is a big problem with the stock 4Runner, FJ, Tacoma and Tundra Guards. They suck. After you upgrade your suspension and remove the factory engine splash guards, you will run into a few problems.

When you are upgrading your suspension and upper control arms, you have to remove the factory Toyota engine splash guards to remove that long UCA bolt. By removing all of the push tabs on the Toyota engine guards, you risk breaking a few here and there. We did.

If you break the push tabs on your factory guards, you either need to buy new ones directly from Toyota or hold your engine guards together with duct tape or something. If you break your push tabs and try to push them back in, it will work but you will additional problems. They rattle.

Common problems with factory Toyota engine guards

Factory Engine Splash Guards

  • Rattling Push Tabs: With your push tabs in place loosely, they will rattle while you drive causing massive headaches on the road. No one wants to hear something rattling around on their car when driving. We know this because we have experienced this first-hand. We had to duct tape our guards in place over the push tabs in order to stop the rattle. The Rad Rubber Design guards will solve this problem.
  • Broken Engine Splash Guards: The other problem that can happen to your guards is deterioration and breakage. If you off-road frequently or live in salty areas, your rubber guards can break apart over time. There is no real replacement for these except directly from Toyota. And, they obviously don’t last the test of time. The Rad Rubber Design 4Runner engine splash guards will serve as a direct replacement.
  • Time is not on your side: Even if you have not experienced the problems above, it is only a matter of time before your engine guards give out or fail in some way. Having a quality set of rubber guards on your 4Runner, FJ Cruiser, Tacoma or Tundra will prevent headaches down the road. Also, they protect your engine much more than the factory guards.

Rad Rubber Design Engine Guards

4Runner Engine Splash Guards – Passenger

4Runner Engine Splash Guards - Passenger

4Runner Engine Splash Guards – Driver

4Runner Engine Splash Guards - Driver

Rad Rubber Designs might be the only company that makes aftermarket splash guards. And, these guards kick ass. They are made of incredibly high-quality rubber and all hand cut. To be specific, the Rad Rubber Design guards are a Heavy Duty replacement set (4 pieces) for both driver and passenger side wheel wells made with 1/8″ Nitrile rubber resistant to gas and oil. Fasteners included.

Rad Rubber Design also offers different kits for KDSS specific vehicles and vehicles with a body lift.

They are based out of Floria and make 4Runner, FJ Cruiser, Tacoma, and Tundra guards. They also make engine splash guards for GX models and if you reach out to them, they might be able to make something custom for your application.

The company actually started as FJ Fender Flaps. FJ Fender Flaps were designed first and then the company grew into more demand for aftermarket guards. On top of Fender Flaps and engine splash guards, they also design and make LED light covers.

Find them online: 

Rad Rubber Design complete product line:

  • FJ CRUISER (All Years): $49.95
  • 4RUNNER (3rd Gen 1996-2002): $49.95
  • 4RUNNER (4th Gen 2003-2009): $49.95
  • 4RUNNER (5th Gen 2010-2017): $49.95
  • TACOMA (1st Gen 1995-2004): $69.95
  • TACOMA (2nd & 3rd Gen 2005-2017): $49.95
  • TUNDRA (2nd Gen 2007-2017): $49.95
  • 80 SERIES LANDCRUISER): $69.95
  • LEXUS GX470 & GX460/PRADO): $49.95

Rad Rubber Design Engine Splash Guards Install

The overall install for the Rad Rubber Design engine splash guards is pretty straightforward. You always have the option to remove your tire to make more room for the install but you don’t need to. And, it might end costing you more time than it’s worth.

Instead of removing the tires, you may just want to turn your wheel hard-passenger or hard-driver in order to get a little more room to work with. By turning your wheel driver or passenger, you can create a little more space for the rear or front wheel well.

You start by removing the existing guards and you don’t need to worry about saving the fasteners as you will be replacing them with the new ones that are enclosed in your package. A common panel fastener clip removal tool is the best way to remove the fasteners.

Using the diagram that is provided in the instructions by Rad Rubber Design, you can line up the appropriate rubber piece with the right location and attach using the enclosed fasteners. There are 19 fasteners needed to attach the guards with 17 of them being 5/16″ and 2 of them being a 1/4″.

The diagrams indicate where the quarter-inch fasteners are used with one on each side where the front guards attached to the side shock frame support. The quarter-inch fasteners can be pushed in, but when you put the 5/16 fasteners and be sure to push the body of the fastener through the holes in the rubber and the frame body before you push the head in, locking it into place.

It is important to note that there is supposed to be slack or a ripple effect in the rubber guards, this allows for movement as the guards attached to the frame on the bottom but to the body at the top. This flexibility adds to the strength and overall durability of the aftermarket engine guards. 

The Nitrile Rubber cut by Rad Rubber Design is a family of unsaturated polymers with qualities of superior strength and high resistance to oil, gas and most chemicals. It has a natural black unfinished appearance which makes it ideal for mini automotive applications. 

Step #1 – Pop Tabs off Factory Splash Guards

4Runner Engine Splash Guards - Remove Factory Guards

Step #2 – Remove Factory Splash Guards

4Runner Engine Splash Guards - Remove Factory Guards

Step #3 – 17 Push Tabs & 2 Thread Fasteners

Splash Guards Install Step #1 - 17 Push Tabs & 2 Thread Fasteners 

Step #4 – Place Push Tabs and Fastener (pre-install)

Splash Guards Install Step #1 - Place Push Tabs and Fastener (pre-install)

Step #5 – Fit Push Tabs into Place

Splash Guards Install Step #1 - Fit Push Tabs into Place

Step #6 – Push tabs through Body/Frame

Splash Guards Install Step #6 - Push tabs through Body/Frame

Step #7 – 2 X Thread Fasteners

Splash Guards Install Step #7 - Thread Fasteners

Engine Splash Guards – Final

Thanks, Rad Rubber Design – Kick Ass Product and worth every penny! The only thing I would recommend is sending an additional push tab. I almost broke one.

4Runner Engine Splash Guards - Passenger

Notify of

Inline Feedbacks
View all comments
3 years ago

How do the threaded fasteners come into the play? The pictures are hard to tell how these get installed, I ended up leaving them out. I installed these today and broke a few tabs so had to order some replacements. Also some of the push tabs were not very easy to push in had to hammer them in, is that normal?

Last edited 3 years ago by Jon
3 years ago

Looks nice, maybe they will come up with some design for the fender liner cuts that are made during an install on the Gen 5 stage 2 fender mod that SSO offers.

Questions or Comments?x

GET 20% OFF!

Get Up to 20% Off the Trail 4Runner Store!
Your Email
Our content is pretty fire! We will never spam your inbox or sell your data.