Cycle Electric 12-Volt Generator Mounted Regulator For Harley Features: Complete with bearing and seal Fits all XL generators and Big Twin generators with updated end plate (4 holes) Updated end plate has an extra set of mounting holes to align the fins on the regulator level with the engine (not included) To make the fins parallel to the ground, an updated end plate is required (or a Cycle Electric generator, available separately) Specially tuned for hotter running batteries on Softails and customs with horse shoe oil tanks Endplate is sold separately Made in the USA Note: Low Output version is for use when using small battery in horse shoe oil tank.