Distributor - E-Spark - Mechanical Advance - fits Harley Big Twin 1936-1969

Distributor, E-Spark, Breakerless, Harley-Davidson

PART# A556

$465.95   Suggested Retail
$418.95   Your Price
Free Shipping
In Stock  


The A556 utilizes a stock style mechanical advance unit combined with our rugged E-Spark optical module and billet shutter wheel. These distributors are compatible with both kick start and electric start applications and can be installed without any engine disassembly when used with stock cylinders and heads. Note: Must use carbon core spark plug wires, do not use copper core.


  • Billet Aluminum Construction
  • Can Be Installed Without Engine Disassembly
  • Rugged Mechanical Advance
  • Durable Mallory E-Spark Module
  • Made In The USA


Emission Code1
Product TypeMotorcycle
WarningCalifornia Proposition 65
WarrantyLimited 90 Day Warranty

Tech Resources


This part is legal for use on Emissions Controlled Vehicles when used in accordance with the manufacturers application guide because it has a California Air Resources Board Executive Order number or is a direct or consolidated replacement part.

The following vehicles are considered Emissions Controlled Vehicles:

  • 1966 and newer U.S. manufactured California Certified vehicles
  • 1968 and newer U.S. manufactured Federally Certified vehicles
  • 1968 and newer Foreign manufactured vehicle
WARNING FOR A556: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

*Free Shipping & Handling only offered to the continental US on orders over $100.

Some parts are not legal for use in California or other states with similar regulations.