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6 Results. We provide a full selection of genuine GMC Sierra 2500 HD Classic Catalytic Converters, tested and validated by GMC Sierra 2500 HD Classic for fit, form and function.
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GMC Sierra 2500 HD Classic CONVERTER, Catalytic ConverterPart Number: 15225140
Converter Asm-3Way Catalytic (W/ Exhaust Manifold P
GMC Sierra 2500 HD Classic Converter & PipePart Number: 15229341
CONVERTER, Catalytic Converter
Fits the following GMC Sierra 2500 HD Classic Years: