Home / Lawn & Garden / Parts / Caster Wheel Bushing 1721682SM Caster Wheel Bushing 1721682SM$9.39 Price may not be up-to-date. In Stock View Product Part Number: 1721682SM Brand: SIMPLICITY Seller: Sears PartsDirect Categories: Lawn & Garden, Parts 60-day return policy Description This caster wheel bushing (part number 1721682SM) is for lawn tractors. Caster wheel bushing 1721682SM supports the caster wheel arm. Wear work gloves to protect your hands when installing this part.