Mercruiser 7.4 Liter Thunderbolt Tune Up Kit | M74TBOLT

Mercruiser 7.4 Liter Thunderbolt Tune Up Kit | M74TBOLT

Mercruiser 7.4 Liter Thunderbolt Tune Up Kit M74TBOLT

Comprehensive kit includes everything needed to tune-up Pre Vortec Mercruiser 7.4L engines with Thunderbolt electronic distributors.

• Normal annual maintenance items including distributor cap, rotor, spark plugs, spark plug wires, oil filter, fuel filter and fuel treatment
• For Mercruiser 7.4 liter 454 cu. in. GM V8 engine models using Thunderbolt ignition and NGK BR6FS spark plugs
• Packaged conveniently in one easy part number to order
• Just add the recommended engine oil