Metabo HPT/Hitachi 884959 Piston Bumper and 884958 Piston O-Ring Combo Kit (4-Pack)

These are genuine OEM Metabo HPT 884959 Piston Bumper and 884958 Piston O-Ring Combo Kit tool replacement part. The 884959 piston bumper is designed to keep the piston from hitting the bottom of the cylinder. Immediately replace if you have a broken or cracked piston bumper fot it can seriously damage the cylinder. The 884958 O-Ring is a simple and essential part that helps prevent leaks, protects joints, and seals up connection points. The Piston Bumper and Piston O-Ring are compatible with the following nailer models: NR90AD, NR90AF, NR90AE, NV90AG, NR90ADS1M, NR90AES1M, NR90AFS1M, NV90AGSM, NR90AEPR, and NR90ADPR (Sold Separately). Please reference the tool diagram to ensure part compatibility before ordering.