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Key Specs

MFG. Part #86401
BrandMSD
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MSD 86401 Details

The MSD Flying Magnet Crank trigger is now available with a Hall-Effect sensor making it the most accurate way to trigger your EFI. The kit installs easily and uses rigid aluminum mounting bracketry and hardware that will not flex and cause timing fluctuations. Powerful magnets are embedded in a 3/8" thick aluminum trigger wheel that will send your EFI a clean signal for every firing.

Features:

  • Same, easy install as traditional MSD Crank Trigger Kits
  • Most accurate way to trigger your electronic fuel injection (EFI)
  • 3-wire Hall-effect sensor that is less susceptible to noise interference
  • Powerful magnets are embedded in a 3/8” thick billet aluminum trigger wheel
  • Rigid mounting that will not flex and cause timing fluctuation
  • Rebates

    Holley IRS Sale 2026

    Save 10% instantly on select products across the Holley family of performance brands during the annual Holley I.R.S.Tax Sale. Instant rebate period has been extended and now runs from February 17, 2026 through March 29, 2026.

    CARB Warning

    For race/ off road use only

    Emissions warning: this part only legal for sale or use in California for racing (competition) vehicles which may never be used, registered, or licensed for use upon a public highway. Any other use renders the vehicle tampered and not legal for use on California public highways (any public street or roadway, public dirt road, public park, or publicly maintained right of way open to the use of the public for vehicular travel). Violations subject to $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and the laws of all other states with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine.

    MSD 86401 Specifications

    KEY SPECS
    MFG. Part #86401
    BrandMSD
    Customer Impersonation Script