42493 1 CHECK VALVE Mercruiser 473B1F0GS CHECK Price: query Add to cart Go to cart Rating: 78 Buy CHECK VALVE 42493 1 Mercruiser genuine, new aftermarket parts with delivery Number on catalog scheme: 3 Compatible models: 473B1F0GS Mercruiser Mercruiser entire parts catalog list: 473B1F0GS 1994,1995,1996 PRIMER PUMP » 42493 1