part nr. belt type O/D mm Width mm no. teeth image application CSK5057 belt (circular) 125.9 22 42 Opel 4cyl 8v SOHC (1.6-1.8-2.0L) CSK5058 belt (circular) 125.8 27 42 Opel 4cyl 16v DOHC (C20XE) CTOP002 belt (circular) 114 19.5 38 Opel 4cyl 8v SOHC (SV, 1.3-1.6L) CTOP031 belt (trapezoidal) 116 27 46 Opel 4cyl 16v DOHC (C20XEV) CTOP115 belt (trapezoidal) 115.7 22 46 Opel 4cyl 8v SOHC (1.8-2.0L) CTOPK01 belt (trapezoidal) 116 27 46 Opel 4cyl 16v DOHC (X20XE) CCR2323 belt (rectangular) 114.2 20 38 Opel 4cyl 8v SOHC (1.3L) CTOP015 belt (trapezoidal) 115.8 22 46 Opel 4cyl 16v DOHC (X14XE, X16XE) TOPCIH chain (double) 118.6 15.4 38 Opel CIH