High Output Charging System & Rotor Harley Big Twin 1981-99 HD# 29957-81B MSRP: $183.32 Sale price $111.10 Weight: 4.54 Charging System The 32 Amp system features a series type regulator-rectifier that unloads the stator when the battery is at full charge letting the engine spin easier than the OEM shunt... Qty in Cart: 0 Quantity ( in cart): Decrease Quantity: Increase Quantity: Price: MSRP: $183.32 Sale price $111.10 Subtotal: Add to Cart