750-12021 Oil pump assembly, used in the Alpha series engines, LPA, LPW/S/G all versions except the turbo engine.(LPWT)750 12021 Oil pump assembly, This pump was used in the LPA, LPW S G series engines, this pump will not fit the Turbo engine (LPWT) This will be item number 1 in the Lister Petter drawing. The LPA, LPW S engines were used in numerous pieces of equipment, Moffett M5000 Forklift, Ditch Witch 400SX plow, Ditch Witch 410SX plow, Ditch Witch JT 920L directional drill, Ditch Witch JT 820L directional drill, Ditch Witch FP35 Fluid Pac, Onan gas generators