Crusader RP030011 Spark Plug Set
Includes 8 Plugs
- Crusader 6.0L Platinum Spark Plug Set
- For Crusader 6.0L GM engines
- Contains (8) platinum AC Delco plugs
- Replaces AC Delco 41-993
- Replaces NGK PZTR5A-15
- Replaces Volvo Penta 3861326
- PCM ZR6, INDMAR LY6 -AC 41-110
- Supersedes the AC 41-974 & AC 41-985
- Plug gap for PCM is .040
- Plug gap for Indmar is .050
- The Iridium plugs usually last 500 or more hours
- Be sure to clean and inspect them each year!
Recommended by the manufacturers for optimum performance, these spark plugs are the correct heat range for your marine engine