Constructed of an aluminum center section and cast iron end plates, model 3AHPG is a high pressure hydraulic gear pump with 10 displacement sixes from 1.34-5.43 in^3/rev (22-89 cm^3/rev). The standard mounting flange is a SAE B- 2 Bolt. The standard drive shaft is a 7/8” straight shaft with a 1/4” key.