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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GM Original Equipment HEAVY DUTY HEATER(C42) EXCEPT ELECTRIC REAR WINDOW DEFOGGER(C49) FOR ORDERING INSTRUCTIONS REFER TO BULLETIN GCUS-9-4131 OR REGIONAL EQUIVALENT
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
GM Original Equipment HEAVY DUTY HEATER(C42) EXCEPT ELECTRIC REAR WINDOW DEFOGGER(C49) FOR ORDERING INSTRUCTIONS REFER TO BULLETIN GCUS-9-4131 OR REGIONAL EQUIVALENT
