Bosal 099-127 Catalytic Converter - Rear

Federal/EPA Direct-Fit Catalytic Converter

Bosal BRExhaust 099-127 is a direct-fit catalytic converter built for Federal/EPA-compliant applications on select Lexus LS400 models. It uses stainless steel construction, a ceramic substrate, and a bolt-on design to support reliable exhaust flow and emissions control without cutting or welding.

The BRExhaust Federal Direct-Fit Pre-OBDII Catalytic Converter line is engineered for straightforward replacement on vehicles that need a direct OE-style exhaust solution. For Lexus LS400 rear catalytic converter replacement, this part number 099-127 provides a fitment-focused option for 1990-1997 applications listed below.

• Direct-fit catalytic converter for rear position applications
• Stainless steel finish and stainless steel construction for corrosion resistance
• Ceramic substrate for emissions system service
• Bolt-on inlet and outlet attachment for easier installation
• Pre-converter oxygen sensor location
• Includes gasket and mounting hardware
• Federal / EPA compliant design for listed vehicles

Fitment Details

Compatible with Lexus LS400 rear catalytic converter applications:

• Fits 1995-1997 Lexus LS400, rear
• Fits 1990-1994 Lexus LS400, rear, California Emissions Equipped Vehicles Registered Outside Of California; 2-Bolt Flange

This part cross-references Toyota/Lexus OE numbers 17410-50031 and 1741050031 for the same application.

What This Part Helps Address

• Failed or restricted rear catalytic converter
• Emissions test failure related to converter efficiency
• Check engine light concerns tied to exhaust aftertreatment
• Corrosion damage in the exhaust stream
• Exhaust flow loss from a deteriorated converter core

Installation Notes

Verify the rear position, 2-bolt flange configuration, inlet and outlet dimensions, and oxygen sensor placement before installation. This converter uses bolt-on inlet and outlet connections and does not require cutting, welding, or fabrication when installed on the listed applications. Confirm emissions equipment and registration requirements for your vehicle before ordering.

Quality Assurance

Bosal BRExhaust converters are built with durable stainless steel construction and are engineered for Federal/EPA-compliant service on the listed Lexus LS400 applications. Part number 099-127 is designed as a direct-fit replacement to support proper exhaust system function and emissions compliance.