Comprehensive kit includes the items needed to tune-up Gen+ Vortec Mercruiser 4.3 liter engines with Thunderbolt ignition system.

• Normal annual maintenance items including distributor cap, rotor, spark plugs, spark plug wires, oil filter, fuel filter and fuel treatment
• For Mercruiser Vortec Gen+ 4.3 liter 262 cu. in. GM models using Thunderbolt ignition and NGK BPR6EFS projected tip spark plugs
• Packaged conveniently in one easy part number to order
• Just add the recommended engine oil

WARNING- This product can expose you to chemicals which are known to the State of California to cause cancer and reproductive harm. For more information go towww.P65warnings.ca.gov.