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Programmable Shift Light for Holley EFI Systems
InfoVehicle Info Needed
HOLLEYPART NUMBER: 510-840003-1

Programmable Shift Light for Holley EFI Systems

$17679
ShippingShips on 09/04/2026
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OBD-II Shift Lights
Programmable Shift Light
  • Holley EFI Systems
  • Signals User-Set Shift RPM
  • Direct Replacement Service Part

    This shift light signals a user-set shift point for Holley EFI systems, driven by engine RPM.

    Holley 840003-1 Highlights:

    • Works with Holley EFI systems.
    • Signals a user-set shift RPM.
    • Direct replacement service part.
  • Part TypeShift Light
    BrandHOLLEY
    Package Height3.2
    Package Width6.5
    Package Length6.8
    Weight0.6 PG
    Part CategoryPerformance Parts
    Shift Light Lens ColorBlue
    QuantitySold individually
    Overall Length4.25 in (108 mm)
    Part FitmentUniversal
    AdjustableYes
    Shift Light Diameter0.75 in (19.1 mm)
    Shift Light Housing ColorBlack
    Vendor Part Number840003-1
    Package Qty1
    Package TypeEA
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    Some parts are not legal for use in California or other states with similar laws / regulations
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