Genuine DeWalt Seal — part N014013 — a precision beatpiece/sealing ring designed to restore proper compression and prevent leaks in DeWalt demolition hammers.

Specifically sized at 20 mm inner diameter × 30 mm outer diameter × 7 mm thickness (20x30x7), this compact seal fits into the beatpiece/piston area to maintain air and oil pressure under heavy impact cycles.

Compatible with DeWalt demolition hammer models including D25940K, D25941K and D25951K (check your model diagram for exact placement), the N014013 is a direct replacement part that helps stop blow-by, reduce downtime, and extend the life of the tool.

Sold individually as an original DeWalt replacement seal, it’s a simple, high-impact maintenance item for pros and DIYers who need reliable sealing performance from their demolition hammers.