Metabo HPT/Hitachi (4) 884959 Piston Bumper & (4) 884958 Piston O-Ring Combo Kit for Nailers NR90AD, NR90AF

The Metabo HPT/Hitachi 884959 Piston Bumper and 884958 Piston O-Ring Combo Kit (4 of each) is a premium replacement set designed to maintain air-tight sealing and restore full driving power in your pneumatic nailers. Each kit includes four piston bumpers and four piston O-rings engineered for a precise fit, ensuring smooth operation, reduced air leaks, and improved tool longevity. Constructed from durable rubber and high-impact resin, these components withstand constant pressure and repeated use in demanding job-site conditions. Perfect for maintenance, repairs, or complete rebuilds, this kit keeps your nailer performing like new. Compatible with NR90AD, NR90AF, NR90AE, NV90AG, NR90ADS1M, NR90AES1M, NR90AFS1M, NV90AGSM, NR90AEPR, and NR90ADPR models, it’s the ideal choice for contractors and technicians looking to maintain consistent performance and reliability.

• Included: Metabo HPT/Hitachi (4) 884959 Piston Bumper & (4) 884958 Piston O-Ring Combo Kit
• Metabo HPT, previously Hitachi Power Tools, offers the same great products with a new name.
• Function & Purpose: Restores proper air compression and sealing within pneumatic nailers, ensuring smooth operation and consistent driving power.
• Material & Recommended Use: Constructed from durable rubber and high-impact resin to resist wear and maintain flexibility—ideal for routine maintenance, rebuilds, or repairs to prevent air leaks and extend tool life.
• Compatibility: Fits Metabo HPT/Hitachi NR90AD, NR90AF, NR90AE, NV90AG, NR90ADS1M, NR90AES1M, NR90AFS1M, NV90AGSM, NR90AEPR, and NR90ADPR models (sold separately).