PL 20279

Frequently Asked Questions

Q: What is the PL 20279 seal kit designed for?
A: The PL 20279 is an OEM seal kit for Prestolite manual pallet jack hydraulic pump units. It contains replacement seals for the ball and valve sections of the hydraulic system. This kit maintains system integrity and prevents hydraulic fluid leakage.

Q: What pressure rating does the PL 20279 seal kit support?
A: The PL 20279 seals are rated for hydraulic systems up to 3000 PSI. They are precision-molded from hydraulic-grade elastomer material rated Shore A70±5 hardness, which ensures compatibility with standard pallet jack hydraulic pressures and temperature ranges.

Q: How do I know when the PL 20279 seals need replacement?
A: Replace the PL 20279 seal kit when you observe hydraulic fluid leakage from the pump body, reduced pump pressure, or difficulty raising the load. Preventive replacement is recommended every 3 to 5 years in regular-use equipment, or immediately if leakage appears.

Q: Are the PL 20279 seals compatible with other brands of pallet jacks?
A: The PL 20279 is engineered specifically for Prestolite manual pallet jack hydraulic pumps. Do not use this kit on other brands without verifying compatibility. Mixing incompatible seals can cause system failure or leakage.

Q: What is the expected service life of the PL 20279 seal kit?
A: Seal life depends on usage intensity, fluid temperature, and pump maintenance. In normal warehouse conditions, the PL 20279 seals typically last 3 to 5 years before requiring replacement. Heavy use, temperature extremes, or contaminated fluid can shorten service life significantly.