2003 GMC Sierra 2500 HD equipped with 8.1L V8 Gas OHV, 6.6L V8 Diesel OHV Turbo, 6.0L V8 Gas OHV, 6.0L V8 CNG OHV
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4WD Control Switch Connector RECTANGLE BLACK 4-WAY FEMALE)(W/LEADS 4WD
2003 GMC Sierra 2500 HD equipped with 8.1L V8 Gas OHV, 6.6L V8 Diesel OHV Turbo, 6.0L V8 Gas OHV, 6.0L V8 CNG OHV
4WD Control Switch Connector RECTANGLE BLACK 4-WAY FEMALE)(W/LEADS 4WD