Old Part Numbers: KK-4964Includes piston / rod assembly with piston ring, cylinder, and rod bearing.  If you have a sudden loss of performance, replacing the cylinder sleeve and piston ring usually restores compression in oil-free units. Inspect the...

Kit includes piston compression ring and cylinder cup to restore compression. Note: This kit is a piston replacement for piston head with screw-in top only. If you have a sudden loss of performance, replacing the cylinder sleeve and piston ring usually...

Old Part Numbers: Z-D27196

Old Part Numbers: SSF-993 Also available in Fastener Kit # KK-4929.