Quicksilver 847701Q25 Blue Wire Spark Plug Wire Kit 2025-11-18 More speed

More speed

Manufacturer part number 8M0123400

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Quicksilver 847701Q25 Blue Wire Spark Plug Wire Kit 2025-11-18 More speedSpark plug set 847701Q25 is for use on V8 MerCruiser 500 EFI engines (1998 2004) and MerCruiser 575 SCi engines (2000 2005). These blue wire spark plug wires are tailored to reach the correct plug locations and are designed for efficiency, endurance and durability in a marine environment. Quicksilver is the leader in delivering uncompromising marine parts for over 65 years. Complete set of blue wire spark plug wires with boots at spark plug end