US Military part number is 186-6195 and the NSN part number is (not listed)
This was the early type
The TX2 and TX3 engines was used in the Read Screen-All RD-40 and RD-90 machines
This will be item number 12 in the Read Screen page
Call backs are common in these situations
750-12021 Oil pump assembly, used in the Alpha series engines, LPA, LPW/S/G all versions except the turbo engine.(LPWT) Deweze US Military part number is750 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