This is a A-S4110S00F Plate, Separator (2.1 MM Thick) PN: S4110S00FMain Description As Following : A-S4110S00F Plate, Separator (2.1 MM Thick) P.N: S4110S00F For 8" Transmission Clutch Pack.Inside Diameter: Major: 5.920" Minor: 5.520"Outside Diameter: 8.005"Teeth: 56Thickness: .083" Found in Section & Models : Transmission & Rear Axle > Clutch Plates: Clutch and PTO, Case-IH TRACTOR: STX275, Case-IH TRACTOR: STX280, Case-IH TRACTOR: STX325, Case-IH TRACTOR: STX330, Case-IH TRACTOR: STX375, Case-IH TRACTOR: STX380, Case-IH TRACTOR: STX425, Case-IH TRACTOR: STX430, Case-IH TRACTOR: STX440, Case-IH TRACTOR: STX450, Case-IH TRACTOR: STX480, Case-IH TRACTOR: STX500, Case-IH TRACTOR: STX530, Case-IH TRACTOR: 9110, Case-IH TRACTOR: 9130, Case-IH TRACTOR: 9150, Case-IH TRACTOR: 9170, Case-IH TRACTOR: 9180, Case-IH TRACTOR: 9210, Case-IH TRACTOR: 9230 Associated Items : New Also A-CIH-S-9110, A-IH-S-AIRHEAT, A-MNL17588, A-CIH-P-9130, A-CIH-S-9110, A-IH-S-AIRHEAT, A-CIH-S-9110, A-IH-S-AIRHEAT, A-CIH-S-9110, A-IH-S-AIRHEAT, A-CIH-S-9110, A-IH-S-AIRHEAT, A-IH-S-AIRHEAT, A-IH-S-AIRHEAT, A-IH-S-AIRHEAT, A-MNL17589, A-IH-S-AIRHEAT, A-IH-S-AIRHEAT, A-MNL17591, A-IH-S-AIRHEAT And : For 8" Transmission Clutch Pack. Inside Diameter: Major: 5.920" Minor: 5.520" Outside Diameter: 8.005" Teeth: 56 Thickness: .083"