For 1999-2000 GMC C6500 Topkick Reference Sensor Dorman 38432KCMY 7.4L V8 LP4

For 1999-2000 GMC B7 Reference Sensor Dorman 57265TCSG 7.4L V8 LP4

For 1999-2000 Chevrolet B7 Reference Sensor Dorman 33376ZSXG 7.4L V8 LP4

For 1999-2000 GMC C7500 Topkick Reference Sensor Walker 55731JQNY 7.4L V8

For 1999-2000 GMC C7500 Topkick Reference Sensor Walker 51849VNKZ 7.4L V8

For 1999-2000 GMC C7500 Topkick Reference Sensor Walker 18299PN 7.4L V8

For 1999-2000 GMC C6500 Topkick Reference Sensor Walker 22114CZPZ 7.4L V8

For 1999-2000 GMC C6500 Topkick Reference Sensor SMP 54146QHCZ 7.4L V8