Bolens Parts: Jack's is your place! We have the Bolens Parts you need, including lawn mower blades, air filters, grass catchers, and much more. Select a category below or use our Bolens Parts Lookup with exploded parts diagrams. 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.