Gauge, Oil Pressure (80 lb). PART NO: A-70207834. Dim A (1)2" Body Dia. . MODELS: Allis-Chalmers TRACTOR: B Allis-Chalmers TRACTOR: C Allis-Chalmers TRACTOR: CA Allis-Chalmers TRACTOR: WC Allis-Chalmers TRACTOR: WD Allis-Chalmers TRACTOR: WD45 Allis-Chalmers TRACTOR: B Allis-Chalmers TRACTOR: C Allis-Chalmers TRACTOR: CA Allis-Chalmers TRACTOR: WC Allis-Chalmers TRACTOR: WD Allis-Chalmers TRACTOR: WD45.