Old Part Numbers: N021229Air Compressor Piston / Cylinder Kit includes the Piston / Rod Assembly with bearing, cylinder cup, and O-rings for model D55127 type 3 and others. This kit is used on many different units, from DeWalt to Bostitch to Craftsman...

Poor performance or air leaks out of the intake filter while the unit is running? The valve plate assembly is probably the problem.

Old Part Numbers: 5130032-00For model D55167 type 2 & 3 and others.