16000H / 16000-25000 Mark II / DES-175 / DES-275 Engine (options)
Allis Chalmers Miscellaneous-Engines 16000H / 16000 Mark II / 17000 Mark II / 21000 Mark II / 25000 Mark II / DES-175 / DES-275 Harvey Engines Options Parts Catalog (engine options only, does not include basic engine)