Feature 1Applicable Generator: 0F97190SRV voltage regulator is fit for generators; replaces and interchanges with 81918, 83049, 083049 0830490SRV, 83049GS, SRV83049, F9719, 0F9719, 0F97190SRV models. 2Interchangeable: 0F9719, 083049, and 083048 are interchangeable, but 083048 lacks cooling fins on the back of the regulator. And that 083049 and 0F9719 are thicker due to the cooling fins and will require longer bolts to replace an 083048. 3Function: If your generator's output voltage is too high, the rectifier may need replacement. It can adjust the voltage output of the generator to ensure a stable and continuous power supply for your travel experience. 4Premium Material: The voltage regulator is made of metal material and processed by multiple precision processes, which makes it sturdy and has stable performance. 5Metal Potentiometer: The 0F97190SRV voltage regulator features a robust metal potentiometer, which prevents high voltage failures, significantly enhancing safety during operation. Item Type: Voltage Regulator Material: Metal Fitment: 0F97190SRV Voltage Regulator replacement, fit for generators; replaces and interchanges with 81918, 83049, 083049 0830490SRV, 83049GS, SRV83049, F9719, 0F9719, 0F97190SRV models. This regulator is not suitable for 0G2885/0G2885A/0G28850SRV voltage regulators. Package List 1 x Voltage Regulator 1 x User Manual Note After installing the new voltage regulator, you must determine if the frequency is correct. Set "mechanical governors" to 62Hz at no load. Set "Electronic governors" to 60Hz at no load. After you determine the hertz are correct, measure the AC output. The voltage should be 124VAC at 62Hz with no load or 120VAC at 60Hz with no load. If the voltage is either high or low, adjust the brass screw on the blue trim potentiometer next to the red LED light to the correct voltage accordingly.