Product Description
Lift-Rite LF 20278-TH hydraulic seal kit engineered for manual pallet jack L55/L56 series. Includes cross-reference part numbers (LF 20278, LR 20278, LF PL-20278, LF20278-TH). Designed for hydraulic pump repair, supports 3000 PSI systems, constructed from nitrile rubber per ASTM D2240 Shore A70. Kit comprises O-rings, piston seals, wiper seals, and back-up ring components with typical outer diameter 1.25 inches. Fluid-compatible for ISO VG 32–46 hydraulic oils and fits 3/8 inch NPT ports within
Compatibility: Fits pallet jacks made by Lift-Rite, model L55. SKU: LF 20278-TH
Specifications
Part Identification
| Part Number | LF 20278-TH |
| Cross-Reference Part Numbers | LF 20278, LR 20278, LF PL-20278, LF PL20278, Lift-Rite 20278, LiftRite 20278, 20278, LR20278-TH, LF20278-TH |
| Supersedes / Replaces | LF 20278, LR 20278 |
| Equivalent Part Numbers | LF PL-20278, LF PL20278, LR PL-20278, LR PL20278 |
Compatibility
| Compatible Models | Lift-Rite L55, Lift-Rite L56 |
Material & Construction
| Material | Nitrile rubber per ASTM D2240 Shore A70 |
| Components Included | O-rings, piston seals, wiper seals, back-up ring components |
| Seal Finish | Precision molded, matte finish |
| Typical Outer Diameter | 1.25 inches |
Specifications
| Pressure Rating | Supports 3000 PSI hydraulic systems |
| Fluid Compatibility | ISO VG 32-46 mineral-based hydraulic oils |
| Port Size | 3/8 inch NPT |
| Seal Kit Reference | Drawing available for Lift-Rite L55/L56 hydraulic unit assembly (refer to manufacturer technical documentation) |
Frequently Asked Questions
Q: What pallet jack models does the LF 20278-TH fit?
A: The LF 20278-TH is designed for Lift-Rite L55 and L56 series manual pallet jacks. Verify your equipment model matches one of these series.
Q: What materials are used in the LF 20278-TH seal kit?
A: The LF 20278-TH uses nitrile rubber construction per ASTM D2240 Shore A70 specification, ensuring durability and compatibility with standard hydraulic oils.
Q: What hydraulic fluids are compatible with the LF 20278-TH?
A: The LF 20278-TH is compatible with ISO VG 32-46 mineral-based hydraulic oils. Using non-compatible fluids may damage the seals and compromise system performance.
Q: What port size is the LF 20278-TH designed for?
A: The LF 20278-TH is configured for 3/8 inch NPT hydraulic ports. Ensure your hydraulic pump port matches this specification.
Q: What does the LF 20278-TH seal kit include?
A: The kit includes O-rings, piston seals, wiper seals, and back-up ring components with a typical outer diameter of 1.25 inches.
Q: What cross-reference part numbers are equivalent to the LF 20278-TH?
A: Equivalent part numbers include LF 20278, LR 20278, LF PL-20278, LF PL20278, Lift-Rite 20278, LiftRite 20278, LR20278-TH, and LF20278-TH. These are interchangeable for ordering.
Q: What pressure rating does the LF 20278-TH support?
A: The LF 20278-TH is rated to support 3000 PSI hydraulic systems used in manual pallet jack applications.
Q: What does the LF 20278-TH replace?
A: The LF 20278-TH replaces and supersedes part numbers LF 20278 and LR 20278.