The GAI CNGJ12SV1143 J12 SV1143 Ref.450 belt is a high-quality replacement part for agricultural machinery. This durable belt features an outer length of 1143mm, a primitive length of 1120mm, and a width of 12.5mm. It is an equivalent to John Deere part number Z40003, providing reliable performance for various John Deere combine models including the 1000 Series, 1032, 1042, 1052, 1065, 1068, 1072, 1075, 1085, 1165, 1166, 1169, 1170, 1174, 1177, and 1188 Series.