PR 11039-22

Frequently Asked Questions

Q: What is the PR 11039-22 and what type of seal is it?
A: The PR 11039-22 is an OEM rotary shaft oil seal designed for Prime Mover electric lift truck hydraulic and drive assemblies. As a rotary shaft seal, it is engineered to seal a rotating shaft in hydraulic motor or pump applications operating at high cycle rates.

Q: Which electric lift trucks use the PR 11039-22 seal?
A: The PR 11039-22 is compatible with Prime Mover electric lift truck hydraulic and drive assemblies. Verify your truck model, serial range, and specific assembly component before ordering. Alternate part number references include P-11039-22 and RA11039-22.

Q: Are P-11039-22 and RA11039-22 equivalent to PR 11039-22?
A: Yes. P-11039-22 and RA11039-22 are alternate reference numbers for the PR 11039-22 seal. They share the same specifications and shaft/housing bore dimensions. Cross-check your equipment documentation to confirm part compatibility.

Q: Does the PR 11039-22 have any superseded or newer replacement parts?
A: No cross-reference, superseded, or equivalent part numbers have been confirmed for the PR 11039-22. It remains the current OEM specification for Prime Mover electric lift truck applications. Contact us if you need confirmation for a different equipment model or serial range.

Q: What hydraulic fluid and pressure conditions does the PR 11039-22 handle?
A: Specific fluid compatibility and pressure rating for the PR 11039-22 are determined by its seal material and design. Consult the electric lift truck hydraulic system manual for approved fluid types, viscosity grades, and maximum operating pressure to ensure seal compatibility.

Q: What are failure indicators for a worn PR 11039-22 rotary shaft seal?
A: Rotary shaft seal failure typically produces visible hydraulic leakage around the shaft, a drop in system fluid level, or reduced motor or pump performance. If leakage is detected, the seal should be inspected and replaced to prevent system damage or equipment downtime.