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MillerCAT Corp

MILLERCAT 2016-2023 Toyota Tacoma 3.5L Cat Shield™

MILLERCAT 2016-2023 Toyota Tacoma 3.5L Cat Shield™


Toyota Part Number:

Regular price $290.00 USD
Regular price Sale price $290.00 USD
Sale Sold out
Shipping calculated at checkout.
Drive Train

Compatible with TRD/Off-Road Skid Plates.

Will not work with Lift Kits that modify the chassis crossmember!

Protect your Toyota Tacoma 3.5L 4x4 | 2WD with our Cat Shield. Our three piece design is a complete bolt-on application (no rivet nuts or drilling needed) that provides the highest level of deterrence against catalytic converter theft. 

Material:  Select either 304 Stainless Steel (16 gauge) for the ultimate deterrence or  5052 Aluminum (12 gauge). Find out more about the difference in material here

- Our Tacoma cat shields come with the industry leading tamper-proof screws that you cannot purchase anywhere while other competitors use common torx bits.

- Our Toyota Tacoma cat shield minimizes holes for thieves to cut through. Our stamped louvers and logos provide ample heat dissipation while showing that your catalytic converter shield was made with MillerCAT quality and manufacturing capabilities.

Installation Guide

*Professional installation recommended. 

** Our Tacoma Catalytic Converter Shields are designed with the assumption your vehicle has a Radiator Support Splash Shield installed. Toyota Part Number 51406-04020. 

Product may come with surface imperfections. 


Free Shipping Info

Free shipping is available to the lower 48 States. Does not include PO Boxes. Orders may take 1-2 business days to fulfilll.

Expedited Shipping Info

Customers who need their products right away may want to pay for expedited shipping. Here are a few things to consider when choosing a faster shipping method.

- Miller CAT provides the option for faster shipping but is only a pass through for any charges. We do not make any money off of this service.

- When calculating your possible receive date, please remember that shipping services do not ship on weekends or holidays and that orders received after 1:00pm PST cannot be guaranteed to ship that day.

- Due to COVID and high volume of shipments, carriers are not always able to meet their target shipping times. Please understand we have no control over shipment tracking or times after the product leaves our facilities. 

- If you live in California or the West Coast, you may not need that expedited shipping. UPS ground can reach your destination in one to two days. 

International Purchases

If you wish to make an international purchase please contact us at By default we only ship to a few international destinations. Please be aware that there may be significant fees for 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.

Warranty Information

We have a 90 day manufacturers 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 a cosmetic product or ones designed for show. Any undercar product will quickly have 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 is 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 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 that converter theft stopped (for those with repeated theft) or thieves looked and moved on to other vehicles. 


There is a 30 day return policy window for unused products. Please visit this link for more information.

*We do ask that customers carefully make their purchases and reduce the possibility of returns as much as possible. Help us reduce the carbon footprint of these shields as they are large and expensive to ship.

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Customer Reviews

Based on 338 reviews
Does what it's supposed to do

It's not thick which keeps the weight down. That's a good thing. Parts all work and came as described. The only gripe is fitment. If you have the OEM TRD skid plate, you must loosen it completely to ensure you can get the cat shield on first and push it as far to the rear as possible. The special bits work okay, but if you use much force it will give and begin to strip, so be careful.

Jerome T
Satisfied customer!

Couldn’t be happier with my purchase. Quality material and clear instructions. I was able to install it under my Tacoma in less than 30 min. With catalytic converter theft becoming more of a problem this is added insurance!

Art Villanueva
Good Quality

Easy installation and protects underneath the truck 👍

Added, protection

I installed it on my 21 Tacoma, easy install. It took me less than an hour, and that included jacking up the truck.

Daniel Seaton
good insurance

I just now installed it. watched a couple youtube videos first. went very smooth. the only thing that would make it easier would be a shop lift. I know it's just a deterrent but I feel protected.