AR Series 228 Replacement - 750-Hour Maintenance Kit (18mm)

Complete 750-hour maintenance kit for AR 228 Series pumps with 18mm plungers. Kit typically includes valves, piston overhaul seals (oil seals), O-ring set for cylinder head plugs, pump oil, threadlocker, and technical grease. Replaces worn components for extended pump life. Recommended for scheduled maintenance intervals.