Belt, Fan (DSL). PART NO: A-70227470. Allis-Chalmers TRACTOR: D19 (GAS / DSL) Allis-Chalmers TRACTOR: 160 (BASIC / INTERMIATE) Allis-Chalmers TRACTOR: 170 (DSL) Allis-Chalmers TRACTOR: 175 (DSL). . MODELS: Allis-Chalmers TRACTOR: D19 (GAS / DSL) Allis-Chalmers TRACTOR: 160 (BASIC / INTERMIATE) Allis-Chalmers TRACTOR: 170 (DSL) Allis-Chalmers TRACTOR: 175 (DSL).