DeWalt N505552 Spare Part - PISTON KIT

Original DeWalt Piston & Connecting Rod Kit — Part N505552 (NA710282)

Restore the impact performance of your DeWalt rotary/hammer by replacing the worn piston and connecting rod with this genuine DeWalt piston kit (part N505552, also referenced as NA710282).

This assembly includes the piston and connecting-rod (piston‑rod) components used inside DeWalt rotary hammers to convert the drive into percussive force; it’s made to the original fit and tolerances so it installs in the same locations as the factory unit.

Example models this part is listed to fit: DCH293B, DCH293R2, DCH293X2, DCH283, DCH333 (type 1), and rotary-hammer models sold as D25333K and D25334K (type 1 & 2 variations on some listings). Use the model/type stamped on your tool to confirm fit.

Packed dimensions (approximate) are small — roughly 95 × 71 × 60 mm — so it’s an easy internal swap without special storage needs.

If your hammer has lost impact force, is making metal‑on‑metal noises, or shows internal oil/air leaks, replacing the piston and rod with this original DeWalt part will return correct internal geometry and restore reliable percussive action.