MCATX Warranty Registration
MCATX is Miller CAT's Federal/EPA line of aftermarket catalytic converters. Made in the USA with OEM washcoat technology, MCATX is optimized for the EPA market to deliver quality, durable catalytic converters.
Register your installation to activate warranty coverage: 5 years / 50,000 miles on parts, 25,000 miles on emissions performance. Already registered and the converter failed? File a warranty claim.
ISO-9001 Certified
Made in the USA
Federal / 49-State
View Warranty Terms
MCATX Federal Catalytic Converter Limited Warranty
MCATX is Miller CAT's Federal/EPA line of aftermarket catalytic converters. Made in the USA with OEM washcoat technology, MCATX is optimized for the EPA market to deliver quality, durable catalytic converters. This warranty is issued to the distributor of record (or to Miller CAT directly, where the converter was purchased directly from Miller CAT) for MCATX Federal aftermarket catalytic converters purchased through an authorized channel and installed by a licensed repair facility. WHAT IS COVERED Replacement of the MCATX Federal catalytic converter itself, subject to the terms below. This warranty does not cover installation labor, diagnostic fees, towing, rental vehicles, or any other incidental or consequential costs. COVERAGE PERIODS 1. Emission Performance Warranty This converter is warranted to meet applicable EPA emission performance requirements for 25,000 miles from the date of installation, provided the vehicle is properly maintained and operated. 2. Parts Warranty The converter shell, substrate, and end pipes are warranted to be free from defects in materials and workmanship for five (5) years or 50,000 miles from the date of installation, whichever occurs first. CONDITIONS This warranty applies only when: - The converter was installed in the same location, and is the same type, as the converter it replaced - The installation was registered at the time of install, including vehicle, shop, and purchase documentation - The converter was professionally installed by a licensed repair facility - The vehicle has been properly maintained per the manufacturer's recommended service schedule WHAT IS NOT COVERED This warranty does not apply to, and Miller CAT is not liable for, failures or damage resulting from: - Failure to properly maintain the vehicle - Vehicle or exhaust system modifications, including aftermarket exhaust components, deleted or modified sensors, or performance tuning - Installation by a non-professional or unlicensed installer - Contamination of the converter from an unrelated engine condition (e.g. oil, coolant, or unburned fuel entering the exhaust system due to worn piston rings, a failed head gasket, misfire, or similar) - Incorrect application or fitment for the vehicle - Physical damage from impact, road debris, collision, or environmental corrosion - Theft of the converter itself (theft may qualify as a reason for the original replacement installation, but a stolen unit is not a warranty claim) - Use or installation outside the United States, or use in California, where this Federal-spec converter is not legal for sale, installation, or use - The registered converter being resold or the vehicle changing ownership (this warranty is non-transferable) HOW TO FILE A WARRANTY CLAIM If the registered converter itself fails within the coverage period, the installing shop must submit a claim within 30 days of the failure being diagnosed, including: - Your original registration confirmation number - The vehicle VIN (must match the original registration) - Date and mileage at diagnosis of the failure - Photos of the failed converter, including the visible part tag/serial number - A photo of the odometer at time of removal - Diagnostic documentation (e.g. scan tool report/code) supporting the failure diagnosis - If the failure may be related to an engine condition: documentation of any prior repair work performed on the vehicle before the converter failed (not required for theft claims) - For theft claims: a police report number in place of the above repair documentation The failed converter must be retained and made available for inspection upon request. Claims are reviewed and administered through your Miller CAT distributor, or directly by Miller CAT for direct-purchase accounts.
