Gasket, Water Pump Mounting (GAS). PART NO: A-70234382. New water pump mounting gasket fits multiple Allis-Chalmers Tractor models. . MODELS: Allis-Chalmers TRACTOR: D10 (GAS) Allis-Chalmers TRACTOR: D10 (W/ GAS ENGINE) Allis-Chalmers TRACTOR: D12 (GAS) Allis-Chalmers TRACTOR: D12 (W/ GAS ENGINE) Allis-Chalmers TRACTOR: D15 (GAS) Allis-Chalmers TRACTOR: D15 (W/ GAS ENGINE).