N.O.S - New Old Stock
Brand: Mercury Marine
Part Number: 21-42657A3
Description: Check Valve Assy
It is the buyers responsibility to check that this is correct part for your engine, drive unit or watercraft before ordering.
If you are unsure of the application, please enter the make, model & serial number information in the comments section of the checkout.
*New and unused item. May be removed from original packaging for the purposes of photographing the item as shown.