Heavy Duty Version Available for Standard
For the ultimate protection, purchase the HD version of the standard suspension Cat Shield, now with thicker 12 gauge 304 stainless steel!
Material: 304 Stainless Steel | 16 Gauge
Note: Shield may have some surface imperfections. Professional installation recommended. Our shield will not work with Lift Kits that modify the chassis crossmember! 4Runner Cat Shield fitment is based on the suspension of the vehicle. If you don't have the X-REAS or KDSS suspension such as on the SR5, SR5 Premium and the TRD Pro, please purchase the standard version. Will work with TRD skid plates. Package includes Cat Shield, tamper-proof hardware kit, Cat Shield Protected sticker, and detailed installation guide.
Our Fitment Guarantee: While we do our best to test and verify every model, it is impossible to know for sure. We guarantee that if your vehicle is listed on the fitment table and you purchased the right shield for your vehicle but the shield does not fit, we will issue a full refund including return shipping on the product. The vehicle must have the original converter and no modifications to the suspension. If you are unsure about your fitment, please send photos to support@millercat.com to verify fitment before purchase.
Year | Make | Model | Engine Size | Drivetrain | Notes |
---|---|---|---|---|---|
2014 | Toyota | 4Runner | 4.0L | RWD/4x4 | Standard Suspension |
2015 | Toyota | 4Runner | 4.0L | RWD/4x4 | Standard Suspension |
2016 | Toyota | 4Runner | 4.0L | RWD/4x4 | Standard Suspension |
2017 | Toyota | 4Runner | 4.0L | RWD/4x4 | Standard Suspension |
2018 | Toyota | 4Runner | 4.0L | RWD/4x4 | Standard Suspension |
2019 | Toyota | 4Runner | 4.0L | RWD/4x4 | Standard Suspension |
2020 | Toyota | 4Runner | 4.0L | RWD/4x4 | Standard Suspension |
2021 | Toyota | 4Runner | 4.0L | RWD/4x4 | Standard Suspension |
2022 | Toyota | 4Runner | 4.0L | RWD/4x4 | Standard Suspension |
2023 | Toyota | 4Runner | 4.0L | RWD/4x4 | Standard Suspension |
Disclaimer: Our product was designed to be used under normal operating conditions set by the manufacturer. Exceeding those conditions may risk damage to the vehicle or the product. See Section 28 in our Terms of Service for more information.
Will the shield interfere with maintenance such as engine oil and transmission fluid changes?
All Miller CAT Cat Shields will not interfere with your oil changes. Some vehicles will require the shield to be removed for transmission fluid changes. Check your maintenance schedule on how frequently to change your transmission fluid. Toyota's recommendation is 30-60k miles and 60-100k miles depending on your vehicle and driving habits.
Does this shield cause the converter to overheat?
No, our shields will not cause overheating or damage to your vehicle. In addition to shields, we manufacture catalytic converters, so we know how to protect them without damaging the converter or your vehicle. Read about this in more detail.
How long does it take to ship?
We know you can’t wait long to protect your converters when theft is so rampant. Here at Miller CAT, our shields are made to stock and ready to ship. Unlike many other companies that make shields to order, we fulfill orders in 1-2 business days and if possible, on the same day.
Free shipping is available to the lower 48 States. Please note that we cannot deliver to P.O. Boxes. Orders will take 1-2 business days to fulfill.
Expedited Shipping InfoExpedited shipping is available for customers who need their products sooner. Please note the following when choosing an expedited shipping method:
If you wish to make an international purchase, please contact us at info@millercat.com. By default, we only ship to a few international destinations. Please be aware that there may be significant fees that you (the buyer) must pay when you receive the product.
Value Added Taxes (VAT) and import duties are some of the fees that your country will impose on your purchase. We do not know what these fees are and they are solely managed and determined by your customs office.
ReturnsWe have a 30-day return policy window for unused products. Please visit this link for more information.
Note: We ask that you carefully review vehicle compatibility and other product/install information before making your purchase. Help us reduce the possibility of returns as much as possible and reduce the carbon footprint of these shields, as they are large and expensive to ship.
We have a 90-day manufacturer's warranty against defects from the manufacturing process. This covers issues that prevent the proper installation or performance of the product.
Cosmetic imperfections that occur either from the manufacturing or shipping process are not covered. We do not manufacture cosmetic products or ones designed for show. Any undercar product will quickly gain scratches and scuffs due to the location of the product and proximity to the road. Click here to find out more about the manufacturing process and what you might expect from your product.
We do NOT guarantee our product against theft. Cat Shields are a deterrence device that are meant to discourage theft and/or make it more difficult for thieves to steal your converter. Given the right tools, technique or time, a thief can still take your converter. However, by having a shield, you are significantly increasing your protection against converter theft. Similar to a car or home alarm, you are making thieves second-guess themselves and consider moving onto another target. Deterrence works and we have countless customer accounts and video evidence of derailed converter theft.
Toyota 4Runner 4.0L 2014-2023 Cat Shield
Amazing product, I wish the supply bolt are different sizes. It will make it more difficult for thieves to remove the cover.
Looks good in protecting my cats. Cat thieves have previously tried (didn't succeed) to steal the cats off of my Tacoma so I didn't want to take any chances with my new 4Runner.
It was an easy installation guide. Noticed that the Cat Shield's left edge kept tapping onto the catalytic converter whenever you drove on the road.
Excellent product, easy to install
Toyota 4Runner 4.0L 2014-2023 Cat Shield
Amazing product, I wish the supply bolt are different sizes. It will make it more difficult for thieves to remove the cover.
Looks good in protecting my cats. Cat thieves have previously tried (didn't succeed) to steal the cats off of my Tacoma so I didn't want to take any chances with my new 4Runner.
It was an easy installation guide. Noticed that the Cat Shield's left edge kept tapping onto the catalytic converter whenever you drove on the road.
Excellent product, easy to install
Toyota 4Runner 4.0L 2014-2023 Cat Shield
Amazing product, I wish the supply bolt are different sizes. It will make it more difficult for thieves to remove the cover.
Looks good in protecting my cats. Cat thieves have previously tried (didn't succeed) to steal the cats off of my Tacoma so I didn't want to take any chances with my new 4Runner.
It was an easy installation guide. Noticed that the Cat Shield's left edge kept tapping onto the catalytic converter whenever you drove on the road.
Excellent product, easy to install
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