Aftermarket Top End Compressor Rebuild kit for Sierra Dental TruNorth Components MP series Compressors. Sierra Dental 1/2 HP Compressor Rebuild Kit Fits EGL-T16 EGL-T-6 EGL-T12 Eagle Dental Equipment Eagle 6 EGL-T6 Eagle-T6 The aftermarket Kit includes 2 - Sleeves, 2 Cup Seals, Cylinder Sleeve O-Rings, & 4 Valves. DOES not include screws, Head gaskets, or filters.Kit is for servicing 1 head compressor as picture. If you have 2 compressors, you will need 2 kits. Does not include the Compressor. ***General rule of thumb is that the screws are not needed to be replaced. Filters can be cleaned, etc. We manufacture these service parts to help keep YOUR costs down and your Equipment UP and running.Easily Field serviceable in under 20 minutes.These will not fit other style compressors NOT pictured. I.E. Gast, etc. We have those kits as well though. This returns your unit to original factory performance Pressure specifications. Recommend for service every 2 years.ToolsThe following tools are used in the maintenance and overhaul procedures.• Adjustable open-end wrench• Allen wrench 5/32• #2 Phillips screwdriver• Small flat-blade screw-driverOverhaul ProcedureWhen the compressor run time reaches 6000 hours (or a multiple of 6000 hours) it is time to replace certain items in the compressor. These include the piston cups, piston seals and head gaskets (if needed) of the compressor.