CV Performance
Improving the Performance of your Harley Motorcycle

ThunderCore Pro plug wires

ThunderCore Spark Plug Wires

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Retail: $23.95
Price: 23.95 - 29.95
You Save: $23.95 (100.0%)
Availability: Limited Stock
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     Evo 1340 Softail 89-99, Dyna 89-98 

    $26.95

     FLH FLT (Carb) 99-06 

    $24.95

     FLH FLT (EFI) 99-08 

    $23.95

     FLH FLT 2009-17, FLH FLT 65-79 

    $25.95

     FLH FLT 80-98 

    $23.95

     FX FXE 65-85, FXR 82-94 

    $25.95

     Milwaukee 8 

    $29.95

     Twin Cam Softail/Dyna 99-17, XL Sportster 04-06, XL Sportster 07-21 

    $23.95

     XL Sportster 65-85 

    $25.95

     XL Sportster 86-03 

    $23.95

    ThunderCore Pro Spark Plug Wire Set
    The new ThunderCore Pro plug wires from Walker Products are the ideal performance replacement wire set for your Harley. Precision manufactured from premium components in Walker's ISO 9001 certified facility, made in the USA. Available for practically all Harley models including Shovelhead, Evo, Twin Cam, Milwaukee 8, and Sportsters*

    Available February 2023

    • 8.9mm Premium MAG Plug Wires
    • Class E Silicone / EPDM Wire Construction / SAE J2031 Rated Cable
    • Operating Temperature Resistance Exceeds 450 Degrees Fahrenheit
    • 500 ohm Stainless Steel Wire "MAG" Wound
    • Latex Silicone Layer Enhances Conductive Efficiency and Core Stability
    • RFI and EMI Suppression
    • EPDM Inner Insulation For Dielectric Strength
    • Premium Core Provides Unmatched Strength and High Temperature Durability
    • Tempered Silicone Outer Jacket
    • Made in the USA, Manufactured in an ISO 9001-2008/TS16949 certified facility

    *Not available for XL1200 "S" models with dual plug heads

    Harley ThunderCore Pro Plug Wires


    Note that appearance of all products are subject to change. 
    As a manufacturer and supplier we are unable to provide repair or service advice. Please consult a factory service manual or a qualified motorcycle technician when working on your motorcycle.

    Replacement wire sets for the following Harley SE part numbers: 

    32358-00A  99-17 FXST
    31930-99A  00-17 FLST
    31901-08  99-06 FLH FLT (Carb) 
    31901-08  07-21 XL
    31932-99A  99-09 FLH FLT (EFI)
    31958-04  04-06 XL
    32303-08A  09-17 FLH, FLT (Twin Cam only)
    32093-98  65-79 FLH FLT
    32093-98  65-85 FX, FXE, XL,
    32093-98  89-99 FXST and FLST
    32093-98  91-98 FXD
    32091-98  80-98 FLH, FLT, 86-03 XL 
    32090-98  82-94 FXR