CDI Electronics, Official UK & Eire Sales and Distribution with Engine Room Marine Parts

OMC Cobra 4 Cylinder (Late) HT Lead Set 503749 (631-0023)


Maximum Performance Spark Plug Wire for high output applications requiring EMI/RFI suppression for radios and onboard electronics.

Fits the following models with a Delco EST Distributor

  • 3.0L 1990-98

    • Replaces: 503749
    • 8mm
    • Kevlar Core
    • More Spark Energy
    • Better EMI Suppression
    • Higher Dielectric Strength