Home / Lawn & Garden / Parts / Air Filter 668-5378 Air Filter 668-5378Price Not Available Price may not be up-to-date. Out of Stock View Product Part Number: 668-5378 Brand: HITACHI POWER TOOLS Seller: Sears PartsDirect Categories: Lawn & Garden, Parts Possible Matches$18.65Grote 66865 Hard-Shell Connector Pigtail (Hard Shell) Description Air Filter