Allis Chalmers Parts: Jack's is your place! We have parts for Allis Chalmers lawn mowers and tractors. Select a category below to find the part you need. Are you a Professional Landscaper or Commercial Dealer? You can get Extra Savings with special discounted prices on select parts, up to 60% off! Sign up for a Commercial Account with Jack's Small Engines today. You can also use our free Allis Chalmers Parts Lookup with exploded part diagrams.