MILLERCAT Catalytic Converter Shield / Anti-Theft Guard – 2018-2021 Toyota Tundra 4×4

The installation of the Rear Shield (x2) add-on provides complete protection for all four converters for your 2018-2021 Toyota Tundra 4×4. Each order comes with one left and right rear shield and hardware.

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

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.

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 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.

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.

If your Toyota Tundra is from 2007-2017, this product will NOT fit your vehicle. The reason the rear wings will not fit these years is because of a missing mounting point. 

Vehicle makes and models this catalytic converter shield will fit

YearMakeModel
2018ToyotaTundra 4×4
2019ToyotaTundra 4×4
2020ToyotaTundra 4×4
2021ToyotaTundra 4×4

2018 Toyota Tundra 4×4

2019 Toyota Tundra 4×4

2020 Toyota Tundra 4×4

2021 Toyota Tundra 4×4

Catalytic Converter Guard Shipping Information

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.

– MillerCAT 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.

Thank you for your interest in our products. We will do our best to not only make the best product on the market, but also do what we can to get it to you as fast and as safe as possible.

Catalytic Converter Graphics-01

Customer Reviews for 2018 2021 Toyota Tundra 4x4

five stars rating
Peace of Mind

After being a victim of cat-theft and not being able to get back on the road after 4 months, I couldn’t imagine driving without a theft deterrent device once I received my truck back. This shield is 1- affordable, 2- easy to install myself and 3- most important … in stock and delivered right away. Thank you for making an amazing, available and DIY friendly cat shield.

Danielsan
five stars rating
Rear shield add-on

Item is not the same thickness as the main shield, but aligns well when installed under the main piece, which would probably be why it isn’t any thicker. If it were to be installed different and made the same thickness I would change it out for a newer version.

JE
five stars rating
Covers rear cats/resonators.

Covers the rear cats and the deterrent I wanted. Makes access that much more difficult.

Shawn Lashbrook
five stars rating
high quality stuff

^right there

DV
five stars rating
Good Night's Sleep 😴

Due to recent events in our economic culture, acquiring catalytic converters for their precious metals is on the rise again. I realize it’s just a piece of machinery…but it’s mine and I’ve worked hard to get it. These two piece assembly plates will let me sleep better and no one needs to get shot over a piece of metal. Assembly was slightly tedious but with a “lift” recommend…and couple of extra mechanics hovering around… installed nicely. Looks great if ya wanna peak under a truck. 🤔 Definitely is a time consuming headache for those desperate few. Good night all. Zzzzzz

John McGreevy
five stars rating
Easy install

Very clean and easy install. My only issue is that I wish the add ons had more coverage of the catalytic converters. But it’s not like the thieves will be able to remove them easily.

James Enloe
five stars rating
Millercat purchase and rear shield add-on

great build for the main components and side shields. be very careful handling the product for first time…very sharp edges…razor sharp. need to take a deburring tool or file to soften the edges.
also, i purchased the optional rear shields….not very impressed, perfect fit, however, no where near the same thickness like the main shield. very thin. i would have paid a bit more, and preferred, for them to be the same thickness as the rest. once you install them, give them small strikes with your hand or fist….they will rattle with vibration. you will need to find the sources of vibration and “pad” them with rubber or some sort of other vibration dampener.

Nick
five stars rating
Great add on to Cat Shield

Originally, I added a Cat Shield and then ordered the Rear Shield Add-on, which was a simple self install. Anyone on the fence if the Cat Shield or the Rear Add-on is flimsy it is NOT. Both products are thick and quality products. Great deterrent for anyone thinking of stealing your catalytic converters.

Alan Toledo
five stars rating
Toyota Tundra 4x4 (2018-2021) Rear Shield Add-on

The rear shields were easy to put on my Tundra even without having to raise it. Instructions were straight forward. Now I can rest easier knowing the rear catalytic converters are protected.

MC
five stars rating

Help me sleep better at night that my truck is protected

Edwin Haro
five stars rating

Would have liked for them to be thicker but will detour thieves i suppose

TM
five stars rating
extensions

How about extensions for 2007-2017 Tundras? I had the cats stolen off my 2017 Tundra and would like the rear cats protected as well.

James Henderson
five stars rating
Add on

I am so happy that you made the add on for tundra 4×4. Cover back cats. They are well made and easy to install !!!!! With FAST shipping too

William Johnston
five stars rating
Tundra Cat Shield

Just had the main and rear shields installed. I ordered the main shield from my Toyota dealer and the rear shields from MillerCat. The technician that installed said the main shield and rear shields were relatively easy to install. There is no rattle or other noise coming from the shield. It looks pretty substantial. I’ll let you know if my cat gets stolen. Hoping not since they are taking about 3 months to get from the manufacturer, and I need a Toyota cat on it since it’s under warranty.

Mark B
five stars rating
MillerCAT shields , 2019 Tundra

Great addition to the primary MIllerCAT shield , easy to install , customer support was great .

Pete Nicholson
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