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Superior Parts DB150-05 Repair Kit #05 Compatible with Bostitch MCN150 Nailer

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The Superior Parts DB150-05 Repair Kit #05 is a comprehensive aftermarket service kit designed to restore and maintain the performance also compatible with Bostitch MCN150 Metal Connector Nailer. This kit includes five essential replacement components: a piston driver with O-ring and Japanese Carbide blade, a durable polyurethane bumper, a pusher spring assembly, a piston head valve, and a premium-grade gasket. Built with UNI-LOK crimping technology, the piston driver is hydraulically secured to prevent loosening, even under torque levels up to 80 N-M (59 ft-lbs). Each part is precision-machined and manufactured from high-quality materials to deliver strength, durability, and reliability. This kit provides contractors with a dependable, cost-effective solution for keeping their nailers operating at peak performance.

$52.84
Model# DB150-05
SKU
645710027789


  • Kit includes SP 174075 aftermarket bumper/piston stop, SP 174061C piston driver with O-ring (Japanese Carbide blade), SP 174095 pusher spring assembly, SP 174054 piston head valve, and SP 174050Q frame/deflect gasket.
  • Piston driver is manufactured from Japanese Carbide SKH-9 for extended service life compared to US S7 steel.
  • UNI-LOK technology hydraulically crimps shaft grooves, ensuring the piston driver never unscrews during heavy use.
  • Heat-treated aluminum driver maintains durability, while annealing at the threaded end increases ductility and shock resistance.
  • Polyurethane bumper absorbs piston impact to protect internal housing and extend tool life.
  • Piston head valve and frame/deflect gasket are precision-engineered for proper sealing and consistent performance.
  • Pusher spring assembly restores consistent magazine feeding for smooth and reliable operation.
  • Compatible With: Bostitch: MCN150 | DeWalt: DW66
  • Specifications: Material: Aerospace-Grade #2024 Aluminum, Japanese Carbide Steel Tip, Polyurethane Bumper, Premium-Grade Gaskets | Hardness: 64–66 HRC | Torque Resistance: Withstands up to 80 N-M (59 ft-lbs) before shearing at the aluminum base
  • Brand Superior Parts
    Model# DB150-05
    CA Prop 65

    California Proposition 65