Hyster Seal Kit HY1355276 – HY-1229

This Hyster seal kit rebuilds a lift cylinder, packaging the rod seals, piston seals, wipers, and o-rings that keep hydraulic fluid sealed inside the bore. As the original elastomer seals age, the cylinder drifts under load, loses lifting pressure, and weeps fluid past the rod. Installing a fresh kit restores a tight seal between the moving rod, the piston, and the cylinder wall, returning full holding force and smooth actuation without the cost of a complete cylinder replacement. It carries the Hyster part reference along with a documented alternate number for cross-checking. Confirm which cylinder assembly this kit services before beginning the rebuild.