# MagnaFlow 51809 OEM Grade Universal Catalytic Converter (3" ID/3" OD) for 2010-2023 Chevrolet Express 2500 and More ### Performance Overview The Magnaflow OEM Grade Catalytic Converters are the perfect replacement for your stock converter. They are crafted from high-quality stainless or aluminized steel for maximum durability. They are seam-welded for unbreakable bonds with no risk of vibrations. The catalytic converters are available with a lap inserted in the point where the neck meets the catalytic converter body. The neck is carefully formed to be sure that it doesn't reach the body where it can cause trouble to the exhaust flow. As an additional safety feature, the Catalytic Converter has a heavy duty heat shield to protect it against extreme heat and give additional stability. ### Key Features - Brand: MagnaFlow - Part number: 51809 - Product type: OEM Grade Universal Catalytic Converter (3" ID/3" OD) - Designed for compatible vehicle applications listed on this page ### Vehicle Fitment - 2021 Chevrolet Express 2500, Note: Base, Ls, Lt; 4.3L, 6.6L; 3.00"; 3.00" - 2022 Chevrolet Express 2500, Note: Base, Ls, Lt; 4.3L, 6.6L; 3.00"; 3.00" - 2023 Chevrolet Express 2500, Note: Base, Ls, Lt; 4.3L, 6.6L; 3.00"; 3.00" - 2015 Chevrolet Express 3500, Note: Base, Ls, Lt; 6.0L; 3.00"; 3.00" - 2021 Chevrolet Express 3500, Note: Base, Ls, Lt; 6.6L; 3.00"; 3.00" - 2022 Chevrolet Express 3500, Note: Base, Ls, Lt; 6.6L; 3.00"; 3.00" - 2023 Chevrolet Express 3500, Note: Base, Ls, Lt; 6.6L; 3.00"; 3.00" - 2010 Chevrolet Express 4500, Note: Base; 6.0L; 3.00"; 3.00" ### FAQ **Will this fit my vehicle?** Please verify your year, make, model, position, and any fitment notes using the compatibility list above before purchase. **What part number is this?** The listed part number is 51809. **Is this product designed for direct replacement?** Yes. This product is intended to match compatible vehicle applications listed in the fitment section. **Should I confirm fitment before ordering?** Yes. Always compare your original part, position, and vehicle details with the fitment chart before ordering. ### Common Searches - OEM Grade Universal Catalytic Converter (3" ID/3" OD) for Chevrolet Express 2500 - 51809 fitment - MagnaFlow OEM Grade Universal Catalytic Converter (3" ID/3" OD) - 2010 Chevrolet Express 2500 OEM Grade Universal Catalytic Converter (3" ID/3" OD) ### Vehicle Fitment Table Year Make Model Position Fitment Precision Note 2021 Chevrolet Express 2500 Base, Ls, Lt; 4.3L, 6.6L; 3.00"; 3.00" 2022 Chevrolet Express 2500 Base, Ls, Lt; 4.3L, 6.6L; 3.00"; 3.00" 2023 Chevrolet Express 2500 Base, Ls, Lt; 4.3L, 6.6L; 3.00"; 3.00" 2015 Chevrolet Express 3500 Base, Ls, Lt; 6.0L; 3.00"; 3.00" 2021 Chevrolet Express 3500 Base, Ls, Lt; 6.6L; 3.00"; 3.00" 2022 Chevrolet Express 3500 Base, Ls, Lt; 6.6L; 3.00"; 3.00" 2023 Chevrolet Express 3500 Base, Ls, Lt; 6.6L; 3.00"; 3.00" 2010 Chevrolet Express 4500 Base; 6.0L; 3.00"; 3.00" 2011 Chevrolet Express 4500 Base; 6.0L; 3.00"; 3.00" 2012 Chevrolet Express 4500 Base; 6.0L; 3.00"; 3.00" 2013 Chevrolet Express 4500 Base; 6.0L; 3.00"; 3.00" 2014 Chevrolet Express 4500 Base; 6.0L; 3.00"; 3.00" 2015 Chevrolet Express 4500 Base; 6.0L; 3.00"; 3.00" 2016 Chevrolet Express 4500 Base; 6.0L; 3.00"; 3.00" 2017 Chevrolet Express 4500 Base; 6.0L; 3.00"; 3.00" 2018 Chevrolet Express 4500 Base; 6.0L; 3.00"; 3.00" 2019 Chevrolet Express 4500 Base; 6.0L; 3.00"; 3.00" 2020 Chevrolet Express 4500 Base; 6.0L; 3.00"; 3.00" 2021 Chevrolet Express 4500 Base; 6.6L; 3.00"; 3.00" 2022 Chevrolet Express 4500 Base; 6.6L; 3.00"; 3.00" 2023 Chevrolet Express 4500 Base; 6.6L; 3.00"; 3.00" 2016 Chevrolet Suburban 3500 Hd Ls, Lt; 6.0L; 3.00"; 3.00" 2017 Chevrolet Suburban 3500 Hd Ls, Lt; 6.0L; 3.00"; 3.00" 2018 Chevrolet Suburban 3500 Hd Ls, Lt; 6.0L; 3.00"; 3.00" 2019 Chevrolet Suburban 3500 Hd Ls, Lt; 6.0L; 3.00"; 3.00" 2021 GMC Savana 2500 Base, Ls, Lt; 4.3L, 6.6L; 3.00"; 3.00" 2022 GMC Savana 2500 Base, Ls, Lt; 4.3L, 6.6L; 3.00"; 3.00" 2023 GMC Savana 2500 Base, Ls, Lt; 4.3L, 6.6L; 3.00"; 3.00" 2021 GMC Savana 3500 Base, Ls, Lt; 4.3L, 6.6L; 3.00"; 3.00" 2022 GMC Savana 3500 Base, Ls, Lt; 4.3L, 6.6L; 3.00"; 3.00" 2023 GMC Savana 3500 Base, Ls, Lt; 4.3L, 6.6L; 3.00"; 3.00" 2010 GMC Savana 4500 Base; 6.0L; 3.00"; 3.00" 2011 GMC Savana 4500 Base; 6.0L; 3.00"; 3.00" 2012 GMC Savana 4500 Base; 6.0L; 3.00"; 3.00" 2013 GMC Savana 4500 Base; 6.0L; 3.00"; 3.00" 2014 GMC Savana 4500 Base; 6.0L; 3.00"; 3.00" 2015 GMC Savana 4500 Base; 6.0L; 3.00"; 3.00" 2016 GMC Savana 4500 Base; 6.0L; 3.00"; 3.00" 2017 GMC Savana 4500 Base; 6.0L; 3.00"; 3.00" 2018 GMC Savana 4500 Base; 6.0L; 3.00"; 3.00" 2019 GMC Savana 4500 Base; 6.0L; 3.00"; 3.00" 2020 GMC Savana 4500 Base; 6.0L; 3.00"; 3.00" 2021 GMC Savana 4500 Base; 6.6L; 3.00"; 3.00" 2022 GMC Savana 4500 Base; 6.6L; 3.00"; 3.00" 2023 GMC Savana 4500 Base; 6.6L; 3.00"; 3.00" ## Details - **Price:** 2024.2 CAD - **Vendor:** MagnaFlow - **Type:** OEM Grade Universal Catalytic Converter (3" ID/3" OD) - **Tags:** 2010 Chevrolet Express 4500, 2010 GMC Savana 4500, 2011 Chevrolet Express 4500, 2011 GMC Savana 4500, 2012 Chevrolet Express 4500, 2012 GMC Savana 4500, 2013 Chevrolet Express 4500, 2013 GMC Savana 4500, 2014 Chevrolet Express 4500, 2015 Chevrolet Express 3500, 2015 Chevrolet Express 4500, 2016 Chevrolet Express 4500, 2016 Chevrolet Suburban 3500 Hd, 2017 Chevrolet Express 4500, 2017 Chevrolet Suburban 3500 Hd, 2018 Chevrolet Express 4500, 2018 Chevrolet Suburban 3500 Hd, 2019 Chevrolet Express 4500, 2019 Chevrolet Suburban 3500 Hd, 2020 Chevrolet Express 4500, 2021 Chevrolet Express 2500, 2021 Chevrolet Express 3500, 2021 Chevrolet Express 4500, 2021 GMC Savana 2500, 2021 GMC Savana 3500, 2022 Chevrolet Express 2500, 2022 Chevrolet Express 3500, 2022 Chevrolet Express 4500, 2022 GMC Savana 2500, 2022 GMC Savana 3500, 2023 Chevrolet Express 2500, 2023 Chevrolet Express 3500, 2023 Chevrolet Express 4500, 2023 GMC Savana 2500, 2023 GMC Savana 3500, 51809, Auto Parts, Automotive, Catalytic Converter, Direct Replacement, Exhaust Performance, Exhaust System, MagnaFlow, Magnaflow-51809, Muffler, OEM Grade Universal Catalytic Converter (3" ID/3" OD), Performance Exhaust, Performance Parts, Vehicle Fitment ## Variants | Variant | Price | Available | |---------|-------|-----------| | Default Title | 2024.20 CAD | In stock | ## Images - MagnaFlow 51809 OEM Grade Universal Catalytic Converter (3" ID/3" OD) --- > Source: [Standard Auto Part](https://www.standardautopart.com/products/magnaflow-chevrolet-express-2500-catalytic-converter-51809) > Updated: 2026-07-16