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WCECU21 Amp Superseal 26 Pin ECU Connector Component Kit J3 for Aftermarket ECUs
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ICT BILLETPART NUMBER: 335-WCECU21

WCECU21 Amp Superseal 26 Pin ECU Connector Component Kit J3 for Aftermarket ECUs

$2300
ShippingShips on 09/17/2026
Lowest PriceLowest Price Guarantee

ECU
Amp Superseal 26 Pin ECU Connector Component Kit
  • Connects to Aftermarket ECUs
  • J3 Connector 26 Pin Layout
  • 2 Keyways Top, 2 Keyways Bottom
  • OEM-Brand Components
  • Includes:
    • Connector
    • Terminals (26 + 6 Extra)


    The ICT Billet WCECU21 kit provides Amp Superseal 26 pin J3 connectors with four keyways for interfacing LS engine harnesses with aftermarket ECUs, eliminating custom pigtails and splices.

    ICT Billet WCECU21 Amp Superseal 26 Pin ECU Connector Component Kit Features:

    • Compatible with aftermarket ECUs
    • J3 connector with 26 pin layout and four keyways (2 top, 2 bottom)
    • Includes connector body and terminals (26 with 6 spares)
    • OEM-brand Superseal terminals, seals, and connector housing

    ICT Billet WCECU21 Amp Superseal 26 Pin ECU Connector Component Kit Notes:

    • Recommended 18 AWG wire for proper terminal seating
    • For best crimps, use an MCON 1.2 series crimper
    • All Your Custom Wiring Needs, Fulfilled

      ICT Billet offers wiring connector adapters, harnesses, and pigtails to assist fuel-injected LS conversions, late-model transmission swaps, and numerous other automotive projects and applications. Each wiring component has a premium-grade material construction for dependable reliability.

    Part TypeElectrical Connector
    Product LineICT Billet Wire Connector Adapters, Harnesses, and Pigtails
    BrandICT BILLET
    Package Height1.0
    Package Width3.0
    Package Length5.0
    Weight0.07 PG
    Part CategoryPerformance Parts
    Terminal GenderFemale
    Connector ColorBlack
    Connector GenderMale
    Terminal Quantity26
    Part FitmentDirect Fit
    Connector ShapeSquared
    Vendor Part NumberWCECU21
    Package Qty1
    Package TypeEA
    No Questions
    No Reviews

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