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Tune Up Kit Mercruiser 7.4 Liter Thunderbolt Complete Tune Up Kit Pre Vortec M74TBOLT
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ELECTRICAL & TUNE UP
Tune Up Kit Mercruiser 7.4 Liter Thunderbolt Complete Tune Up Kit Pre Vortec M74TBOLT
Comprehensive kit includes everything needed to tune-up Pre Vortec Mercruiser 7.4L engines with Thunderbolt electronic distributors.
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For Mercruiser 7.4 liter 454 cu. in. Pre Vortec engines with Thunderbolt ignition systems
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Mercruiser tune-up kit includes everything in one convenient package
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Includes 8 NGK BR6FS Pre Vortec spark plugs, plug wires, distributor cap, rotor, 18-7844 fuel filter, 18-7824 oil filter and 8 oz. StarTron gasoline additive