Mercruiser 7.4L 454CID Injectors, Marine vs Auto?
Channel: Jeff Niemeier
Date: 2022-06-28

My 1999 Carver 356 with twin Mercruiser 7.4L 454cid was having misfires and engine problems.  In this video we replace 2 fuel injectors with Carquest truck injectors and clean the other 6 with carb cleaner.   WHAT A DIFFERENCE IT MADE!  Should I stay with auto injectors at $52 or buy marine injectors for $350?

Carquest part #A211-1503

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