Applications include these engines (and the boats that we are aware used these engines... There could be other combinations as well):
• 1GM10CD-SD20 (Catalina 250)
• 2GM20F (Capri 26 and Catalina 270)
• 3YM20F (Catalina 270's after 10/2005, Catalina 309, Catalina 315)
• 3GM30F (Catalina 320)
• 3YM30 (Catalina 320 Hull 994 & up, Catalina 355)

CAUTION: Always carry several spare fuel filters. Under normal circumstances you won't need them. But if you do need them it will be at the worst possible time and you will need them desperately! In heavy seas, any accumulation of debris in the bottom of the tank will get stirred up and mixed with the fuel. When you need the engine the most, the filter will become clogged with the debris, the engine will be starved for fuel, and it will die.
We carry these parts for your convenience though you may find them elsewhere less expensive due to the manufacturer's restricted distribution.