This is a A-370K4 Micro-Rib V-Belt (37") PN: 370K4Main Description As Following : A-370K4 Micro-Rib V-Belt (37") P.N: 370K4 Metric Code: 4PK940Number of Ribs: 4Outside Length: 37.63"Pitch Length: 37"Thickness: .177"Pitch Width: .14" Crossed From: K040370 GATES , 25040372 , , 4PK0937 A & I METRIC BELTS , 4PK0938 A & I METRIC BELTS , 4PK0939 A & I METRIC BELTS , 4PK0940 A & I METRIC BELTS , 4PK0941 A & I METRIC BELTS , 4PK940 BANDO , 4040370 GOODYEAR , 47513121 CASE-IH , 5040370 DAYCO , 84344776 CASE-IH Found in Section & Models : Cooling Systems > Belts: Alt, Fan, Steering, Water Pump, Case-IH TRACTOR: MAXXUM 110 (AC 940mm), Case-IH TRACTOR: MAXXUM 115 (AC 940mm), Case-IH TRACTOR: MAXXUM 120 (AC 940mm), Case-IH TRACTOR: MAXXUM 125 (AC 940mm), Case-IH TRACTOR: MAXXUM 130 (AC 940mm), Case-IH TRACTOR: MAXXUM 135 (AC 940mm), Case-IH TRACTOR: MAXXUM 140 (AC 940mm), Case-IH TRACTOR: MAXXUM 145 (AC 940mm), Case-IH TRACTOR: OPTUM 270 (AC 936.07mm 4 rib), Case-IH TRACTOR: OPTUM 300 (AC 936.07mm 4 rib), Case-IH TRACTOR: PUMA 130 (AC 940mm), Case-IH TRACTOR: PUMA 145 (AC 940mm), Case-IH TRACTOR: PUMA 160 (AC 940mm), Industrial Belts > K-Poly Belt, (Miscellaneous) (UNDEFINED): SEVERAL Associated Items : New Also A-IH-S-AIRHEAT, A-IH-S-AIRHEAT, A-IH-S-AIRHEAT, A-IH-S-AIRHEAT, A-IH-S-AIRHEAT, A-IH-S-AIRHEAT And : Metric Code: 4PK940 Number of Ribs: 4 Outside Length: 37.63" Pitch Length: 37" Thickness: .177" Pitch Width: .14"