Spark Plug Wire Set for Mercruiser V8 Thunderbolt Delco EST Replaces 84-816608Q61

★WORKS WITH -
For Mercruiser V8 Thunderbolt, Delco EST system.

★REPLACES -
Mercruiser 84-816608Q61

★FITS ENGINE -
For all small block (5.0-5.7L) and big block (7.4)L engines with Thunderbolt ignition except for the 454 Hi Performance

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