1132MM
Member
- Aug 1, 2010
- 184
- Boat Info
- 2004 Sea Ray 280 Sundancer
- Engines
- Twin 4.3 Liter Mercruiser w/Alpha One Gen 2 Drives
I have a 2004 280 Sundancer with twin 4.3 MPIs. This is going to be my third season with her. I want to replace the spark plugs and was wondering if it’s a difficult job. I have read online two different spark plugs: Iridium NGK ITR4A15 or AC 41-993. I’ll probably replace whatever plug is in there because the boat ran great. Looking for some tips. Thanks