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

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.