5.5" Triple Groove Pulley fits B Section V-Belt 5L with 5/8" Sheave Bushing 3BK57H Liquid Filled Pressure Gauges CB depending on the size of

depending on the size of pulley

This valve is set at 95-125 PSI once your compressor pumps up to 125 PSI the unloader valve will kick in and your compressor will pump air through the muffler out to the atmosphere until your air tank pressure gets down to 95 PSI Then the unloader will shut and your compressor will pump back up

which will extend the life of the gauge

This belt measures 1/2" wide x 90" long outside diameter

the other two sides both have 1/8" female NPT ports which are normally used for an air pressure gauge to see what pressure you are regulating

5.5" Triple Groove Pulley fits B Section V-Belt 5L with 5/8" Sheave Bushing 3BK57H Liquid Filled Pressure Gauges CB depending on the size ofCast Iron 5. 5" Triple Groove 3 Belt B Section 5L w 5 8" Sheave Bushing Masterdrive triple groove 5. 5" cast iron pulley sheave with a 5 8" H bushing for B section belts is a high quality 2 piece pulley that measures 5. 5" outside diameter and is designed to be used with an H style bushing. The bushing inserts into the center of the pulley and slides over the shaft, as you tighten down the bolts on the H bushing it will tighten down on the shaft