Miller CAT Catalytic Converter Shield | 6th Gen 2025+ Toyota 4Runner Hybrid

Fitment Information

• 2025 Toyota 4Runner Hybrid (6th Gen, N500)
• 2026 Toyota 4Runner Hybrid (6th Gen, N500)

Fitment Note

Fits 2025-2026 6th Gen Toyota 4Runner Hybrid specifically. Requires the original factory catalytic converter with no suspension modifications for Miller CAT's fitment guarantee to apply.

Product Specs & Install Notes

• Complete bolt-on installation, no drilling required
• Durable aluminum construction, designed and manufactured in the USA for this specific vehicle
• Secured with patented tamper-proof security screws, each with a unique key
• Allows for easy engine and transmission oil changes, no shield removal needed
• 90-day manufacturer's warranty against installation or performance defects

Hybrids get targeted more than most, the converters carry more precious metal, and thieves know it. This shield bolts straight to the factory mounting points on your 4Runner Hybrid, no drilling, no cutting, and it won't touch your factory warranty.

Real installs from actual owners are running well under an hour and a half, most doing it themselves in the garage without even needing a lift. Instructions are clear enough for a first-timer, though a couple of owners mentioned the photos could stand to be zoomed out a bit for clarity, keep that in mind and take your time matching up mounting points if it's your first go at something like this.

This won't get in the way of an oil change. Some owners will need it off for a transmission fluid service, so check your 4Runner Hybrid's maintenance schedule for that interval.

Being straight with you here: this is a deterrent, not a promise. It makes the job slow and loud enough that most thieves move on, but a determined thief with enough time could still beat it. Still much better odds than leaving it wide open. For full underbody coverage, this pairs with Miller CAT's MCX Skid Plate for the same 4Runner.

More For Your Build

Check out the rest of our Miller CAT lineup or browse more 6th Gen 4Runner parts.