CATCO Catalytic Converters - Hard-to-Find SKUs & Specialty Applications

CATCO Catalytic Converters - Specialty Manufacturer for Hard-to-Find Applications

CATCO is a specialty catalytic converter manufacturer known for covering hard-to-find SKUs, older vehicles, and uncommon applications that other major brands no longer produce. If you have an unusual fitment requirement or an older vehicle that mainstream brands have discontinued, CATCO is often the only option.

At Restauco Parts, we are carry the full CATCO catalytic converter catalog, including direct fit and universal options for applications spanning multiple decades.

Why Choose CATCO Catalytic Converters

• Hard-to-Find SKUs - Coverage for vehicles other manufacturers have dropped from their catalogs.
• Older Vehicle Specialist - Direct fit options for vehicles 20+ years old that need emissions replacement.
• Both CARB and Federal EPA Versions - Compliant catalytic converters for all 50 states.
• OEM-Style Construction - Stainless steel housings with quality substrate for long service life.
• Direct Fit and Universal Options - Choose the right fit for your specific installation needs.
• Competitive Pricing - Specialty parts at fair market prices.

CATCO Product Categories

CATCO Direct Fit Catalytic Converters

OEM-style replacements that bolt in using factory flanges and oxygen sensor positions. Available for thousands of vehicle applications, including many that other brands no longer cover.

CATCO Universal Catalytic Converters

Generic catalytic converters that can be welded into virtually any exhaust system. Available in multiple inlet/outlet configurations (2 inch, 2.25 inch, 2.5 inch, 3 inch) and body sizes. Ideal for custom installations, performance vehicles, and modified exhaust systems.

CATCO OBDII Universal Catalytic Converters

Universal catalytic converters specifically designed for OBDII vehicles (1996+) with proper substrate density and pre-cat capability to keep your check engine light off.

Best Use Cases for CATCO Catalytic Converters

• Older vehicles (1990s and 2000s) where Walker, AP Exhaust, and Magnaflow no longer offer direct fit options
• Custom exhaust builds requiring universal catalytic converters with specific pipe diameters
• Performance applications where you need a larger universal catalytic converter
• Heavy-duty trucks and commercial vehicles with uncommon fitment needs
• European and import vehicles with limited aftermarket support
• Restoration projects where original specifications must be matched

Popular CATCO Applications We Stock

• CATCO 776106 - Universal OBDII catalytic converter (2.5 inch inlet/outlet)
• CATCO 9238 - Direct fit for select older domestic V8 applications
• CATCO 9099 - Direct fit for select older import vehicles
• CATCO Universal series - Multiple body sizes and pipe diameters in stock
• CATCO CARB Direct Fit - California-compliant options for select applications

Use the search bar at the top of this page to find CATCO converters by part number, or use the vehicle selector to filter by Year/Make/Model.

CATCO vs Other Catalytic Converter Brands

• CATCO vs Walker - Walker covers high-volume modern vehicles; CATCO specializes in older and uncommon applications.
• CATCO vs AP Exhaust - AP Exhaust focuses on premium replacement for popular trucks; CATCO covers a wider range of obscure SKUs.
• CATCO vs Magnaflow - Magnaflow targets performance and high-flow applications; CATCO targets standard replacement for hard-to-find vehicles.

Frequently Asked Questions

Why are CATCO catalytic converters cheaper than Walker or Magnaflow?

CATCO operates a leaner business model focused on specialty SKUs rather than mass-market production. They offer competitive pricing without sacrificing OEM-quality construction.

Are CATCO catalytic converters CARB-compliant?

CATCO offers both CARB-compliant and Federal EPA-only versions. The CARB-compliant line is more limited than other brands, but covers most popular CARB-state applications. Look for the CARB Executive Order (EO) number to confirm compliance.

Can I use a CATCO universal catalytic converter on my modern vehicle?

Yes, but only if you use the CATCO OBDII Universal series for vehicles 1996 and newer. These have the proper substrate density to keep your post-cat oxygen sensor happy and avoid P0420 or P0430 codes. Standard universal converters may trigger check engine lights on OBDII vehicles.

Do CATCO universal converters require welding?

Yes. Universal catalytic converters do not have OEM-style flanges. They are designed to be welded into your existing exhaust system. We recommend professional installation for universal converters unless you have welding experience and the proper equipment.

Do you ship CATCO catalytic converters nationwide?

Yes. We ship CATCO converters to all 50 US states. Shipping cost is calculated at checkout based on package dimensions and destination.

Why Buy CATCO Catalytic Converters from Restauco Parts

• Full CATCO catalog coverage
• Over 120,000 OEM and aftermarket parts in stock
• Specialty knowledge for hard-to-find applications
• 30-day returns, no questions asked
• Trusted seller with 99% positive feedback (3,200+ verified sales)
• Knowledgeable support team - call 787-320-0777

Cannot find your CATCO part number in the search? Contact our support team at [email protected] - we may be able to special-order CATCO converters not listed in our standard catalog.