# MagnaFlow 4551419 California Direct Fit Catalytic Converter for 2003-2005 Cadillac Escalade and More ### Performance Overview Magnaflow's California Catalytic Converter is designed to be CARB compliant. The catalytic converter's ribbed body is designed to minimize distortion and expansion of the body to hold the ceramic catalyst in place. magnaflow's Catalytic Converters are made of stainless steel and are backed by their limited lifetime warranty. ### Key Features - Brand: MagnaFlow - Part number: 4551419 - Product type: California Direct Fit Catalytic Converter - Designed for compatible vehicle applications listed on this page ### Vehicle Fitment - 2003 Cadillac Escalade, Note: Base; 5.3L - 2004 Cadillac Escalade, Note: Base; 5.3L - 2005 Cadillac Escalade, Note: Base; 5.3L - 2003 Chevrolet Avalanche 1500, Note: Base, North Face, On Road Edition, Wbh, Z71; 5.3L - 2004 Chevrolet Avalanche 1500, Note: Base, Z71; 5.3L - 2005 Chevrolet Avalanche 1500, Note: Base, Ls, Lt, Z66, Z71; 5.3L - 2003 Chevrolet Silverado 1500, Note: Base, Ls, Lt, Wt; 4.3L, 5.3L - 2004 Chevrolet Silverado 1500, Note: Base, Ls, Lt, Wt, Z71 Off-Road; 4.8L, 5.3L ### 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 4551419. **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 - California Direct Fit Catalytic Converter for Cadillac Escalade - 4551419 fitment - MagnaFlow California Direct Fit Catalytic Converter - 2003 Cadillac Escalade California Direct Fit Catalytic Converter ### Vehicle Fitment Table Year Make Model Position Fitment Precision Note 2003 Cadillac Escalade Base; 5.3L 2004 Cadillac Escalade Base; 5.3L 2005 Cadillac Escalade Base; 5.3L 2003 Chevrolet Avalanche 1500 Base, North Face, On Road Edition, Wbh, Z71; 5.3L 2004 Chevrolet Avalanche 1500 Base, Z71; 5.3L 2005 Chevrolet Avalanche 1500 Base, Ls, Lt, Z66, Z71; 5.3L 2003 Chevrolet Silverado 1500 Base, Ls, Lt, Wt; 4.3L, 5.3L 2004 Chevrolet Silverado 1500 Base, Ls, Lt, Wt, Z71 Off-Road; 4.8L, 5.3L 2005 Chevrolet Silverado 1500 Base, Hybrid, Ls, Lt; 4.8L, 5.3L 2003 Chevrolet Suburban 1500 Ls, Lt; 5.3L 2004 Chevrolet Suburban 1500 Ls, Lt; 5.3L 2005 Chevrolet Suburban 1500 Ls, Lt, Z71; 5.3L 2003 Chevrolet Tahoe Ls, Lt, Z71; 5.3L 2004 Chevrolet Tahoe Ls, Lt, Z71; 4.8L, 5.3L 2005 Chevrolet Tahoe Ls, Lt, Z71; 4.8L, 5.3L 2003 GMC Sierra 1500 Base, Sl, Sle, Slt, Wt; 4.3L, 5.3L 2004 GMC Sierra 1500 Base, Sle, Slt, Wt; 4.8L, 5.3L 2005 GMC Sierra 1500 Base, Hybrid, Sle, Slt, Wt; 4.8L, 5.3L 2003 GMC Yukon Sle, Slt; 5.3L 2004 GMC Yukon Sle, Slt; 4.8L, 5.3L 2005 GMC Yukon Sle, Slt; 4.8L, 5.3L 2003 GMC Yukon Xl 1500 Sle, Slt; 5.3L 2004 GMC Yukon Xl 1500 Sle, Slt; 5.3L 2005 GMC Yukon Xl 1500 Sle, Slt; 5.3L ## Details - **Price:** 5111.25 CAD - **Vendor:** MagnaFlow - **Type:** California Direct Fit Catalytic Converter - **Tags:** 2003 Cadillac Escalade, 2003 Chevrolet Avalanche 1500, 2003 Chevrolet Silverado 1500, 2003 Chevrolet Suburban 1500, 2003 Chevrolet Tahoe, 2003 GMC Sierra 1500, 2003 GMC Yukon, 2003 GMC Yukon Xl 1500, 2004 Cadillac Escalade, 2004 Chevrolet Avalanche 1500, 2004 Chevrolet Silverado 1500, 2004 Chevrolet Suburban 1500, 2004 Chevrolet Tahoe, 2004 GMC Sierra 1500, 2004 GMC Yukon, 2004 GMC Yukon Xl 1500, 2005 Cadillac Escalade, 2005 Chevrolet Avalanche 1500, 2005 Chevrolet Silverado 1500, 2005 Chevrolet Suburban 1500, 2005 Chevrolet Tahoe, 2005 GMC Sierra 1500, 2005 GMC Yukon, 2005 GMC Yukon Xl 1500, 4551419, Auto Parts, Automotive, California Direct Fit Catalytic Converter, Catalytic Converter, Direct Replacement, Exhaust Performance, Exhaust System, MagnaFlow, Magnaflow-4551419, Muffler, Performance Exhaust, Performance Parts, Vehicle Fitment ## Variants | Variant | Price | Available | |---------|-------|-----------| | Default Title | 5111.25 CAD | In stock | ## Images - MagnaFlow 4551419 California Direct Fit Catalytic Converter --- > Source: [Standard Auto Part](https://www.standardautopart.com/products/magnaflow-cadillac-escalade-catalytic-converter-carb-4551419) > Updated: 2026-07-16