Cummins 5259423 cylinder head

5259423 cylinder head -new-, for engine type: ISC CM2150, C GAS PLUS CM556, ISL G CM2180, ISC8.3 CM2250, QSL9 CM2250, QSC8.3 CM554, ISL9 CM2250, QSL9 CM554, G8.3 CM558, QSL9 CM850, G8.3, ISL9 CM2350 L101, QSL9 G CM558, ISC CM554, L8.9, C8.3 G, ISL CM554, ISC CM850, QSL9 CM2350 L102, ISL CM2150, L GAS PLUS CM556, 6C8.3, QSC8.3 CM850, ISL9 CM2150 SN, ISL CM850, GTA8.3 CM558, recon equivalent 5259423 NX, old part-no. 4928931, 3973632, 4942123, 4987975, 5259423