{ "lazyNodes": false, "abFitnotesFlag": false, "abCrawlReviews": true, "productOptionsCookie": false, "orderDelayFlag": false, "skipSessionCookie": false, "covidMessage": false, "fullTitleCookie": false, "nrLoggerCookie": true, "checkoutReviewCookie": false, "productOptionSeqCookie": false, "maintenanceFlag": false, "bufferETACookie": false, "multiShippingDiscountFlag": false, "newFitmentFlag": false, "surveyOptInFlag": true, "crossSellFlag": false, "skuMappingFlag": false, "paySplitCookie": false, "callDisableFlag": true, "zipPaymentFlag": "c", "hassleFreeReturn": true, "lifetimeReplacement": true, "cpn_off": false }
WARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Interchange Part Number : 19253, 50457Series : Direct Replacement SeriesTube Material : Aluminized SteelWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Interchange Part Number : 19252, 50456, 16547Series : Direct Replacement SeriesTube Material : Aluminized SteelWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Replaces OE Number : 15903508, 20906951Interchange Part Number : 642044, 50477, 19587, 16574, 15903508, 20906951Series : Direct Replacement SeriesTube Material : Aluminized SteelWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Interchange Part Number : 19252, 50456, 16547, 19253, 50457Series : Direct JC Whitney SeriesTube Material : Aluminized SteelWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Replaces OE Number : 15903508, 20906951Interchange Part Number : 19252, 50456, 16547, 19253, 50457, 642044, 50477, 19587, 16574, 15903508, 20906951Tube Material : Aluminized SteelWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Interchange Part Number : 19100, 50365, 55476, 2506RSeries : Direct Replacement SeriesTube Material : Aluminized SteelWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Interchange Part Number : 50457, 19253Series : Direct Replacement SeriesTube Material : Aluminized SteelWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Interchange Part Number : 50456, 19252Series : Direct Replacement SeriesTube Material : Aluminized SteelWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Replaces OE Number : 15903508, 20906951Interchange Part Number : 50477, 15903508, 20906951Series : Direct Replacement SeriesTube Material : Aluminized SteelWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Series : Direct Replacement SeriesTube Material : Aluminized SteelWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Replaces OE Number : 15903508, 20906951Interchange Part Number : 15903508, 20906951Tube Material : Aluminized SteelWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Replaces OE Number : 55578984Interchange Part Number : 50509, 55578984Series : Direct Replacement SeriesTube Material : Aluminized SteelWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Interchange Part Number : 50410Series : Direct Replacement SeriesTube Material : Aluminized SteelWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Interchange Part Number : 19612, 16776Series : Direct Replacement SeriesTube Material : Stainless SteelWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Interchange Part Number : 50365Series : Direct Replacement SeriesTube Material : Aluminized SteelWhile your Buick is equipped with excellent stock catalytic converters, even the best parts can wear out prematurely. Misfires and other engine issues can cause the catcon to run too hot as it tries to compensate for the erratic performance. In most cases, your first (and usually only) warning of a bad catcon is the check engine light switching on. You may also notice that the engine produces insufficient power, stalls, or cannot start because of backpressure from a carbon-clogged catalytic converter. Always check for these symptoms of a bad Buick catalytic converter before taking your ride to its next emissions test.
Even OE catalytic converters manufactured for Buick by General Motors can reveal issues that require a service bulletin or recall to amend. In one instance, GM recalled a number of 2020 Buick Encore GX that received the wrong catcon. These vehicles released higher levels of emissions in violation of federal and state laws. GM contacted the owners of these affected Encore GX units and replaced the incorrect catalytic converter.
Because the exhaust system and the engine work together, a clogged or damaged catalytic converter can seriously hamper your vehicle’s performance. Don't ignore the faulty part, especially when it's so easy to order an affordable OE-grade replacement here at CarParts.com. Our wide selection of Buick aftermarket parts includes catalytic converters sourced from brands that won the trust of Buick owners across the country. And to make sure you get the most bang for your buck, our team of industry experts made sure each product passed their high standards.
Choose from a variety of Buick catalytic converters designed for models like the Enclave, LaCrosse, LeSabre, and more. Each catcon in our catalog is competitively priced, so that you can get back on the road without paying dealership prices. Our products are on hand and ready to ship from strategically located distribution centers to ensure your order arrives in as little as two business days. We’ve also made it easy to find parts for various models, so you can get specific parts like a 2000 Buick LeSabre catalytic converter with the help of our vehicle selector. Check out our catalytic converters and order today!