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Sierra Spark Plug Wire Set for Mercruiser Stern Drive 3.0L I/L4

Sierra Spark Plug Wire Set for Mercruiser Stern Drive 3.0L I/L4
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Sierra Spark Plug Wire Set for boats powered Mercruiser Stern Drive 3.0L/3.0LX I/L4 GM engines with Delco EST type ignition. This new wire set can increase power and save fuel.


  • Mercruiser Stern Drive 84-816761Q14, 84-816761A14
  • Malory 9-28056

Part No. Mfr No. Unit Leaves Warehouse* List Price
Your Price
Spark Plug Wire Set, GM 3.0L
239504 18-8833-1 Each In-Stock: 1 Day $41.18
* Leaves Warehouse: Does not include Weekends and Holidays.
When will my order arrive? Add the Estimated Leaves Warehouse Time + Estimated Shipping Time.
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Additional Description
  • Magnetic Suppression Core manufactured for your specific application.
  • Kevlar core for maximum durability and long life
  • Durable stainless steel wound conductor for maximum horsepower and engine performance
  • Premium silicone jacketing and boots for the ultimate in high temperature protection
  • Superior RFI suppression for the most sensitive electronic system
  • Corrosion resistant stainless steel spark plug and distributor terminals for maximum conductivity
  • OE style boots provide a sealed barrier against heat, dirt and moisture
  • Thunderbolt type ignition

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