Catco 9171 Catalytic Converter

Reliable Catalytic Converter for Buick, Chevrolet, GMC, Isuzu, and Saab

The Catco 9171 catalytic converter is designed to meet federal EPA standards for direct-fit replacement. Engineered with durable stainless steel and a ceramic substrate, this converter ensures efficient exhaust emission control for select Buick, Chevrolet, GMC, Isuzu, and Saab models.

• Constructed from corrosion-resistant stainless steel body
• Includes inlet and outlet gaskets for secure sealing
• Features one O2 sensor port for accurate emissions monitoring
• Inlet with 3 bolt loose flange and flare design
• Outlet with 2 bolt welded flange for reliable connection
• Overall length of 48.13 inches for precise fitment
• Federal EPA direct-fit catalytic converter

Durable Construction and Precise Fitment

The Catco 9171 catalytic converter utilizes a ceramic substrate to effectively reduce harmful emissions while maintaining optimal exhaust flow. Its stainless steel body offers resistance to rust and corrosion, extending the service life of the part. The converter’s inlet flange uses a 3 bolt loose flange with flare, while the outlet features a 2 bolt welded flange, ensuring a secure and leak-free installation. With one O2 sensor port, it supports accurate sensor placement for proper engine management. This part is designed specifically for direct-fit replacement on compatible vehicles, eliminating the need for modifications.

Compatible Vehicles and Applications

This catalytic converter is compatible with the following makes and models:

• Buick 9-7x
• Chevrolet Trailblazer
• GMC Envoy
• Isuzu Ascender
• Saab Rainier

It is intended to replace worn or damaged catalytic converters that cause issues such as:

• Check engine light triggered by emissions faults
• Failed emissions tests due to high exhaust pollutants
• Reduced engine performance or fuel efficiency
• Unusual exhaust odors or increased noise
• Excessive exhaust smoke or visible emissions

Installation Notes and Tips

When installing the Catco 9171 catalytic converter, ensure the inlet and outlet gaskets are properly seated to prevent exhaust leaks. The part does not include installation hardware, so retain or source the necessary bolts and fasteners. Verify the O2 sensor port alignment for correct sensor installation. Due to the direct-fit design, no modifications to the exhaust system should be necessary, but professional installation is recommended to ensure compliance with emissions regulations.

Quality Assurance and Warranty

Catco catalytic converters are manufactured to meet federal EPA standards for emissions control. The stainless steel construction and ceramic substrate provide durability and reliable performance. Warranty details are provided by the manufacturer and should be confirmed at the time of purchase.