Overview
The Hercules PKH-RK2AHL0131 is a 1-3/8″ rod seal kit engineered for Parker hydraulic cylinder restoration and maintenance. Distributed through Hercules Sealing Products, this kit provides all necessary sealing components for cylinder rod replacement in Parker Series 2A, 2H, 3L, and VH models. Built with proven Buna-N material, it delivers reliable performance in hydraulic and pneumatic applications across manufacturing, construction, and industrial equipment.
Key Features
- 1-3/8″ (34.8 mm) rod diameter specification
- Buna-N (nitrile) seal material for durability and chemical resistance
- Complete rod seal kit—includes all sealing components for cylinder rod
- Drop-in replacement for Parker original equipment cylinders
- Compatible with Parker 2A, 2H, 3L, VH, H, L, and A series cylinders
- Industrial-grade construction for heavy-duty applications
Technical Specifications
- Part Number: PKH-RK2AHL0131
- Rod Diameter: 1-3/8″ (34.8 mm)
- Seal Material: Buna-N (Nitrile)
- Product Type: Rod Seal Kit
- Manufacturer: Parker Cylinder Division
- Distributor: Hercules Sealing Products
- Orientation: Packed for cylinder rod replacement
Typical Applications
The PKH-RK2AHL0131 is widely used in:
- Construction equipment (backhoes, excavators, loaders)
- Agricultural machinery (tractors, hay balers, implements)
- Industrial hydraulic presses and machine tools
- Mobile hydraulic systems (forklifts, boom lifts)
- Preventive maintenance and cylinder overhauls
- OEM and aftermarket cylinder rebuild programs
Compatibility & Replacements
Compatible With
- Parker 2A Series hydraulic cylinders
- Parker 2H Series hydraulic cylinders
- Parker 3L Series hydraulic cylinders
- Parker VH Series hydraulic cylinders
- Parker H Series cylinders
- Parker L Series cylinders
- Parker A Series cylinders
- Hydraulic and pneumatic cylinder applications with 1-3/8″ rod diameter
Replaces / Drop-In Replacement For
- Parker RK2AHL0131 (OEM part number)
- PK-RK2AHL0131 (alternative part designation)
Works With
- Standard Parker hydraulic cylinder repair procedures
- Pneumatic and hydraulic system environments
- Pressure ratings compatible with Parker cylinder specifications



