Direct replacement or upgrade to 125cc or 150cc GY6 engines! Direct plug in with any 4-pin stator connectors, will work with any ATR or other brand plug and play GY6 swap harnesses on the market that uses the 4 pin connector!
Same Rectifier that comes with the ATR wiring harness for Honda Ruckus GY6 Swap.
Notes: A matching rectifier is needed if you're upgrading from a 6 or 8 pole unit. Professional installation is recommended as special tool is needed to remove the flywheel.