Description

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.

• V8 7.4 Liter Thunderbolt Tune Up Kit
• For Mercruiser 7.4 liter 454 cu. in. engines with Thunderbolt ignition systems
• Everything needed for a tune up in one convenient kit
• Kit includes 8 NGK BR6FS spark plugs, plug wires, distributor cap, rotor, 18-7844 fuel filter, 18-7824 oil filter and 8 oz. StarTron gasoline additive