1Fitment: This voltage regulator rectifier is designed to match the fit and function of the original part, replacement for NTV600 Revere (1988 ? 1992) (NTV600?J through to NTV600?M); Replacement for NTV650 Revere(1988 ? 1997). 2Oem: The Oem of this voltage regulator rectifier is 31600?MS9?000 for reference, please check the part number of your item before purchasing. 3Fuel Saving: The voltage rectifier can improve ignition efficiency, which makes fuel combustion more adequate, improves fuel efficiency, and reduces the use of vehicle fuel consumption. 4Improve Engine Power: The new rectifier can provide stable voltage, which can directly improves the vehicle low speed torsional performance, and improves speed through enhancing engine power. 5Waterproof and Shockproof: The rectifier is made from precision materials and sealed packaging, which can adapt to various environments and has good waterproof performance. And it uses the surface mount technology,so it has strong anti vibration and anti interference ability.