# MagnaFlow 51578 Direct Fit OEM Grade Catalytic Converter (2.5" ID/2.5" OD) for 2009-2014 Cadillac Escalade 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: 51578 - Product type: Direct Fit OEM Grade Catalytic Converter (2.5" ID/2.5" OD) - Designed for compatible vehicle applications listed on this page ### Vehicle Fitment - 2010 Cadillac Escalade, Note: Hybrid, Hybrid Platinum; 6.0L; 2.50"; 2.50" - 2011 Cadillac Escalade, Note: Hybrid, Hybrid Platinum; 6.0L; 2.50"; 2.50" - 2012 Cadillac Escalade, Note: Hybrid, Hybrid Platinum; 6.0L; 2.50"; 2.50" - 2013 Cadillac Escalade, Note: Hybrid, Hybrid Platinum; 6.0L; 2.50"; 2.50" - 2009 Chevrolet Avalanche, Note: Ls, Lt, Ltz; 5.3L; 2.50"; 2.50"; Rear Wheel Drive - 2010 Chevrolet Avalanche, Note: Ls, Lt, Ltz; 5.3L; 2.50"; 2.50"; Rear Wheel Drive - 2011 Chevrolet Avalanche, Note: Ls, Lt, Ltz; 5.3L; 2.50"; 2.50"; Rear Wheel Drive - 2012 Chevrolet Avalanche, Note: Ls, Lt, Ltz; 5.3L; 2.50"; 2.50"; Rear Wheel Drive ### 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 51578. **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 - Direct Fit OEM Grade Catalytic Converter (2.5" ID/2.5" OD) for Cadillac Escalade - 51578 fitment - MagnaFlow Direct Fit OEM Grade Catalytic Converter (2.5" ID/2.5" OD) - 2009 Cadillac Escalade Direct Fit OEM Grade Catalytic Converter (2.5" ID/2.5" OD) ### Vehicle Fitment Table Year Make Model Position Fitment Precision Note 2010 Cadillac Escalade Hybrid, Hybrid Platinum; 6.0L; 2.50"; 2.50" 2011 Cadillac Escalade Hybrid, Hybrid Platinum; 6.0L; 2.50"; 2.50" 2012 Cadillac Escalade Hybrid, Hybrid Platinum; 6.0L; 2.50"; 2.50" 2013 Cadillac Escalade Hybrid, Hybrid Platinum; 6.0L; 2.50"; 2.50" 2009 Chevrolet Avalanche Ls, Lt, Ltz; 5.3L; 2.50"; 2.50"; Rear Wheel Drive 2010 Chevrolet Avalanche Ls, Lt, Ltz; 5.3L; 2.50"; 2.50"; Rear Wheel Drive 2011 Chevrolet Avalanche Ls, Lt, Ltz; 5.3L; 2.50"; 2.50"; Rear Wheel Drive 2012 Chevrolet Avalanche Ls, Lt, Ltz; 5.3L; 2.50"; 2.50"; Rear Wheel Drive 2013 Chevrolet Avalanche Black Diamond Ls, Black Diamond Lt, Black Diamond Ltz; 5.3L; 2.50"; 2.50"; Rear Wheel Drive 2009 Chevrolet Silverado 1500 Ls, Lt, Ltz, Wt; 4.3L, 4.8L, 5.3L; 2.50"; 2.50"; Rear Wheel Drive 2010 Chevrolet Silverado 1500 Hybrid, Ls, Lt, Ltz, Wt, Xfe; 4.3L, 4.8L, 5.3L, 6.0L; 2.50"; 2.50"; Rear Wheel Drive 2011 Chevrolet Silverado 1500 Hybrid, Ls, Lt, Ltz, Wt, Xfe; 4.3L, 4.8L, 5.3L, 6.0L; 2.50"; 2.50"; Rear Wheel Drive 2012 Chevrolet Silverado 1500 Hybrid, Ls, Lt, Ltz, Wt, Xfe; 4.3L, 4.8L, 5.3L, 6.0L; 2.50"; 2.50"; Rear Wheel Drive 2013 Chevrolet Silverado 1500 Hybrid, Ls, Lt, Ltz, Wt, Xfe; 4.3L, 4.8L, 5.3L, 6.0L; 2.50"; 2.50"; Rear Wheel Drive 2009 Chevrolet Suburban 1500 Ls, Lt, Ltz; 5.3L; 2.50"; 2.50"; Rear Wheel Drive 2010 Chevrolet Suburban 1500 Ls, Lt, Ltz; 5.3L; 2.50"; 2.50"; Rear Wheel Drive 2011 Chevrolet Suburban 1500 Ls, Lt, Ltz; 5.3L; 2.50"; 2.50"; Rear Wheel Drive 2012 Chevrolet Suburban 1500 Ls, Lt, Ltz; 5.3L; 2.50"; 2.50"; Rear Wheel Drive 2013 Chevrolet Suburban 1500 Ls, Lt, Ltz; 5.3L; 2.50"; 2.50"; Rear Wheel Drive 2014 Chevrolet Suburban 1500 Ls, Lt, Ltz; 5.3L; 2.50"; 2.50"; Rear Wheel Drive 2009 Chevrolet Tahoe Ls, Lt, Ltz; 5.3L; 2.50"; 2.50"; Rear Wheel Drive 2010 Chevrolet Tahoe Hybrid, Ls, Lt, Ltz; 5.3L, 6.0L; 2.50"; 2.50"; Rear Wheel Drive 2011 Chevrolet Tahoe Hybrid, Ls, Lt, Ltz; 5.3L, 6.0L; 2.50"; 2.50"; Rear Wheel Drive 2012 Chevrolet Tahoe Hybrid, Ls, Lt, Ltz, Ppv; 5.3L, 6.0L; 2.50"; 2.50"; Rear Wheel Drive 2013 Chevrolet Tahoe Hybrid, Ls, Lt, Ltz, Ppv; 5.3L, 6.0L; 2.50"; 2.50"; Rear Wheel Drive 2014 Chevrolet Tahoe Ls, Lt, Ltz, Ppv; 5.3L; 2.50"; 2.50"; Rear Wheel Drive 2009 GMC Sierra 1500 Sl, Sle, Slt, Wt; 4.3L, 4.8L, 5.3L; 2.50"; 2.50" 2010 GMC Sierra 1500 Hybrid, Sl, Sle, Slt, Wt, Xfe; 4.3L, 4.8L, 5.3L, 6.0L; 2.50"; 2.50" 2011 GMC Sierra 1500 Hybrid, Sl, Sle, Slt, Wt, Xfe; 4.3L, 4.8L, 5.3L, 6.0L; 2.50"; 2.50" 2012 GMC Sierra 1500 Hybrid, Sl, Sle, Slt, Wt, Xfe; 4.3L, 4.8L, 5.3L, 6.0L; 2.50"; 2.50" 2013 GMC Sierra 1500 Hybrid, Sl, Sle, Slt, Wt, Xfe; 4.3L, 4.8L, 5.3L, 6.0L; 2.50"; 2.50" 2009 GMC Yukon Sle, Slt; 4.8L, 5.3L; 2.50"; 2.50"; Rear Wheel Drive 2010 GMC Yukon Denali Hybrid, Hybrid, Sle, Slt; 5.3L, 6.0L; 2.50"; 2.50"; Rear Wheel Drive 2011 GMC Yukon Denali Hybrid, Hybrid, Sle, Slt; 5.3L, 6.0L; 2.50"; 2.50"; Rear Wheel Drive 2012 GMC Yukon Denali Hybrid, Hybrid, Sle, Slt; 5.3L, 6.0L; 2.50"; 2.50" 2013 GMC Yukon Denali Hybrid, Hybrid, Sle, Slt; 5.3L, 6.0L; 2.50"; 2.50" 2014 GMC Yukon Sle, Slt; 5.3L; 2.50"; 2.50" 2009 GMC Yukon Xl 1500 Sle, Slt; 5.3L; 2.50"; 2.50" 2010 GMC Yukon Xl 1500 Sle, Slt; 5.3L; 2.50"; 2.50" 2011 GMC Yukon Xl 1500 Sle, Slt; 5.3L; 2.50"; 2.50" 2012 GMC Yukon Xl 1500 Sle, Slt; 5.3L; 2.50"; 2.50" 2013 GMC Yukon Xl 1500 Sle, Slt; 5.3L; 2.50"; 2.50" 2014 GMC Yukon Xl 1500 Sle, Slt; 5.3L; 2.50"; 2.50" ## Details - **Price:** 942.89 CAD - **Vendor:** MagnaFlow - **Type:** Direct Fit OEM Grade Catalytic Converter (2.5" ID/2.5" OD) - **Tags:** 2009 Chevrolet Avalanche, 2009 Chevrolet Silverado 1500, 2009 Chevrolet Suburban 1500, 2009 Chevrolet Tahoe, 2009 GMC Sierra 1500, 2009 GMC Yukon, 2010 Cadillac Escalade, 2010 Chevrolet Avalanche, 2010 Chevrolet Silverado 1500, 2010 Chevrolet Suburban 1500, 2010 Chevrolet Tahoe, 2010 GMC Sierra 1500, 2010 GMC Yukon, 2011 Cadillac Escalade, 2011 Chevrolet Avalanche, 2011 Chevrolet Silverado 1500, 2011 Chevrolet Suburban 1500, 2011 Chevrolet Tahoe, 2011 GMC Sierra 1500, 2011 GMC Yukon, 2012 Cadillac Escalade, 2012 Chevrolet Avalanche, 2012 Chevrolet Silverado 1500, 2012 Chevrolet Suburban 1500, 2012 Chevrolet Tahoe, 2012 GMC Sierra 1500, 2012 GMC Yukon, 2013 Cadillac Escalade, 2013 Chevrolet Avalanche, 2013 Chevrolet Silverado 1500, 2013 Chevrolet Suburban 1500, 2013 Chevrolet Tahoe, 2013 GMC Sierra 1500, 2014 Chevrolet Suburban 1500, 2014 Chevrolet Tahoe, 51578, Auto Parts, Automotive, Catalytic Converter, Direct Fit OEM Grade Catalytic Converter (2.5" ID/2.5" OD), Direct Replacement, Exhaust Performance, Exhaust System, MagnaFlow, Magnaflow-51578, Muffler, Performance Exhaust, Performance Parts, Vehicle Fitment ## Variants | Variant | Price | Available | |---------|-------|-----------| | Default Title | 942.89 CAD | In stock | ## Images - MagnaFlow 51578 Direct Fit OEM Grade Catalytic Converter (2.5" ID/2.5" OD) --- > Source: [Standard Auto Part](www.standardautopart.com/products/magnaflow-cadillac-escalade-catalytic-converter-51578) > Updated: 2026-06-13