Walker® 40236 - Ultra™ Direct Fit Round Body Catalytic Converter and Pipe Assembly

24 reviews|Item # mpn1850971
Vehicle Specific
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    Notes:
    • Additional Parts Needed: 31334 (RH), 31374 (LH), 31555, 35129
    • This is a Federal (EPA) compliant part, legal for use on vehicles built to meet Federal EPA standards ONLY. It is NOT legal for installation on vehicles required to meet CARB standards and/or registered in California and other states following CARB standards, including NY, ME & CO
    Replaces Original (OE) Part #:1741020201
    Authorized Dealer
    $429.44 + Free Shipping
    In Stock (5) - Ships Tomorrow 07.06.26
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    Vehicle Fitment

    Lexus

    Specifications

    Position
    Rear
    Catalytic Converter Series
    Ultra™
    Catalytic Converter Substrate Material
    Ceramic
    Converter Configuration
    Direct Fit
    Converter Body Material
    Stainless Steel
    Catalytic Converter Oxygen Sensor Port
    No
    Catalytic Converter Oxygen Sensor Location
    No Port Location
    Catalytic Converter Width
    3.5"
    Catalytic Converter Body Height
    3.5"
    Catalytic Converter Body Length
    5.25"
    Catalytic Converter Overall Length
    21.25"
    Catalytic Converter Body Shape
    Round
    Inlet Quantity
    2
    Outlet Quantity
    1
    Inlet Connection Type
    2 Bolt Welded Flanges
    Outlet Connection Type
    2 Bolt Welded Flange

    Features

    • Constructed to meet your vehicle’s specific emissions requirements
    • Body and pipe heat shields made of high quality materials for durability
    • Expandable bushings for custom installation needs
    • May require modifications to install
    • Professional installation is recommended
    • Designed to meet EPA regulations
    • Covered by 5 years/50,000 miles emissions and structural warranty

    Product Details

    Ultra™ Catalytic Converter and Pipe Assembly (40236) by Walker®. Position: Rear. Converter Configuration: Direct Fit. Catalytic Converter Body Shape: Round. Catalytic Converter Overall Length: 21.25". Without O2 Sensor Port. Walker is an OE supplier to many major nameplate vehicle manufacturers. Trust Walker, an industry leader, for the finest emission control technologies for import and domestic vehicles. May require modifications to complete installation, professional installation recommended.

    For safety and legal reasons, a faulty catalytic converter can’t be ignored. By transforming toxic gases into less harmful compounds, the catalytic converter does the important job of limiting emissions. If you are looking for a quality universal fit catalytic converter, you can rely on Walker as it has vast experience in manufacturing emission control devices. Walker produced crankcase emissions control equipment in the early 1960s and, working closely with the Environmental Protection Agency (EPA), produced the 1st universal aftermarket catalytic converter in 1978.

    Unlike the direct fit catalytic converters that come ready to install and are designed to fit your specific make and model with no alterations, the universal fit catalytic converters may require cutting, welding, and other modifications to complete installation.

    Walker® - WarrantyWalker® - GuideWalker® - InformationWalker Authorized DealerFAQAbout us
    Brand:
    Walker
    Part Number:
    40236
    UPC:
    086387402361
    OE Numbers:
    1741020201

    Reviews

    (24)
    Only authorized customers can leave a review on our website. We would love to know what you like or dislike about the product. Share your opinion on product quality, appearance, installation, and other characteristics.
    /5
    1-10 of 24 Reviews
    5 of 5
    Works Great, Fair Price
    Bolted right in and my check engine light went off. Passed the emissions test with no issues. Great product, especially for the price ! way better than what the dealer was charging!
    Posted by Tim (Miami, FL) / September 15, 20242013 Volvo XC90
    3 of 5
    100k Miles
    Lasted 100k miles.
    Walker® - Ultra™ Direct Fit Round Body Catalytic Converter and Pipe Assembly
    Posted by James (Concord, NC) / August 22, 20212005 Scion xB
    5 of 5
    Perfect Fit
    Half the price than anyone else.Bolted right up.Saved over500.00dollars.
    Posted by Customer / June 17, 20212006 Jeep Commander
    4 of 5
    No Box?
    Part is fine but not sure if it was dented when shipped or got dented on the way to us. But it wasn't in a box so it was dented. Got 2 parts both not in box and both dented.
    Walker® - Replacement Exhaust Kit
    Posted by courtney (Benton Harbor, MI) / March 11, 20212010 Chrysler Town and Country
    5 of 5
    It Passed
    Great fit but the gaskets that came with it didn't work for my application.
    Posted by danny (Pawcatuck, CT) / March 04, 20202011 Volvo XC90
    2 of 5
    Horrible
    Had to drill an extra hole on.
    Walker® 56256 - Ultra™ Direct Fit Both Round Body Catalytic Converter and Pipe Assembly
    Posted by Maria R (Ewing, NJ) / April 26, 20192009 Volkswagen Golf GTI
    5 of 5
    Walker
    Bolted right up. Thanks got it fast!
    Walker® 54807 - Ultra™ Direct Fit Round Body Catalytic Converter and Pipe Assembly
    Posted by Robert (Clyde, OH) / November 04, 20182006 Chevy Cobalt
    5 of 5
    Fit
    It works as a replacement but the hanger is about 3 1/2 - 4 inches lower than the rubber hanger of my SUV. I had to use a wire from the pipe to the rubber hanger to support the pipe.
    Walker® 53674 - Ultra™ Direct Fit Round Body Catalytic Converter and Pipe Assembly
    Posted by Constantino (Lake Villa, IL) / August 25, 20182005 Lexus GX
    5 of 5
    Buy This Cat
    Good looking quality product! Much better than the original on my Corvette!
    Walker® 15622 - Ultra™ Direct Fit Large Oval Body Catalytic Converter and Pipe Assembly
    Posted by Douglas C. (Coos Bay, OR) / July 12, 20181990 Chevy Corvette
    3 of 5
    Installation
    Exhaust system was of good quality except there was a whole pipe completely missing between the two catalytic converters.
    Walker® 16599 - Ultra™ Direct Fit Round Body Catalytic Converter and Pipe Assembly
    Posted by Tessa M (Athol, MA) / June 27, 20182007 Suzuki SX4

    Questions and Answers

    (0)
    If you have any questions about this product, please don't hesitate to ask us. We will be happy to help you!