2002 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, 6.0L V8 Bi-Fuel OHV
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AT CASE Mfr Code: 4L80-E
2002 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, 6.0L V8 Bi-Fuel OHV
AT CASE Mfr Code: 4L80-E