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Vehicle Info NeededDYNOMAXPART NUMBER: 289-50511
Walker Catalytic Converter for 1999-2003 Chevrolet Avalanche 1500, Pickup - Silverado 1500 1/2 Ton
$55687
Ships on 09/18/2026
Lowest Price GuaranteeCatalytic Converter1999-2003 Chevrolet Avalanche 1500, Pickup - Silverado 1500 1/2 Ton, Pickup - Silverado 2500 3/4 Ton, Suburban - 1500 1/2 Ton, Tahoe, GMC Yukon Inlet 3.625 in. 50.5 in. Length Stainless Steel Sold Individually
The Walker 50511 is a catalytic converter for 1999-2003 Chevrolet Avalanche 1500, Pickup - Silverado 1500 1/2 Ton, Pickup - Silverado 2500 3/4 Ton, Suburban - 1500 1/2 Ton, Tahoe, GMC Yukon. It is engineered as a direct-fit replacement to restore proper exhaust system performance.
Walker 50511 Features:
- Material: Stainless Steel
- Inlet Diameter: 3.625 in.
- Length: 50.5 in.
- Inlet Type: 3 Bolt Welded Flange
- Outlet Type: 2 Bolt Welded Flange
- Grade Type: Premium
- Direct-fit application for 1999-2003 Chevrolet Avalanche 1500, Pickup - Silverado 1500 1/2 Ton, Pickup - Silverado 2500 3/4 Ton, Suburban - 1500 1/2 Ton, Tahoe, GMC Yukon
Emissions: Not CARB certified. Not legal for sale or use on pollution-controlled vehicles in California or states that follow California emissions standards; intended for use in federal EPA-compliant states only.
- Walker Direct-Fit Catalytic Converters offer OE style and fit. They include gaskets when applicable, hangers, flanges, and brackets for a bolt-on installation. Designed for installers and repair shops that require quick turnaround. Click More Info with part numbers below for applications.
Part TypeCatalytic Converter
Product LineWalker Dynomax Direct-Fit Catalytic Converters (49-State EPA)
BrandDYNOMAX
Package Height13.0
Package Width40.0
Package Length44.0
Weight20.0 PG
Part CategoryPerformance Parts
Outlet QuantityOne
QuantitySold individually
Overall Length50.5 in.
Inlet AttachmentStock flange
California LegalNo
Heat ShieldYes
Substrate MaterialMonolithic catalyst
Air TubeNo
Outlet AttachmentStock flange
Inlet Diameter3.625 in.
Inlet QuantityTwo
Part FitmentDirect Fit
Case MaterialStainless steel
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
