Home / Lawn & Garden / Parts / Piston Ring 669-8404 Piston Ring 669-8404Price Not Available Price may not be up-to-date. Out of Stock View Product Part Number: 669-8404 Brand: HITACHI POWER TOOLS Seller: Sears PartsDirect Categories: Lawn & Garden, Parts Possible Matches$20.99Aynaxcol 5-Pack 669 18 30 CVT Drive Belt Replacement for 49CC 50CC ... Description Piston Ring