Marine Repairs | Marine Parts

Marine Repairs | Marine Parts

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Mercruiser 7.4 Liter Thunderbolt Tune-Up Kit [MMD Powerline M74TBOLT]

Comprehensive kit includes the items needed to tune-up Mercruiser 7.4L GM 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 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