1994-1999 GMC C2500 Suburban Engine: 5.7L V8; High Pressure Cutout | For Pigtail Use 1711880;. 1994-1999 GMC C2500 Suburban Engine: 6.5L V8; High Pressure Cutout | For Pigtail Use 1711880;. 1994-1999 GMC C2500 Suburban Engine: 7.4L V8; High Pressure Cutout | For Pigtail Use 1711880;.