Product Description
HOUSING (INNER PUMP HOUSING)
Specifications
Product Overview
| Part Number | 00591-39573-81 |
| Product Type | Inner Pump Housing |
Physical Specifications
| Material | Aluminum Alloy or Cast Iron |
| Compatibility | Toyota Manual Pallet Jack Models — verify model and serial number range before ordering |
| Function | Houses internal hydraulic passages and chambers; directs hydraulic flow during lift and lower operations |
| Durability Features | Corrosion-resistant; maintains dimensional stability under hydraulic pressure |
Compatibility
| Application | Toyota Manual Pallet Jacks — Hydraulic Pump Assembly |
| Replacement Type | Direct Replacement — factory-spec compatible |
Frequently Asked Questions
Q: What is the 00591-39573-81 inner pump housing used for?
A: The 00591-39573-81 is the inner pump housing for Toyota manual pallet jacks. It serves as the main component of the hydraulic pump assembly, containing the internal passages and chambers that direct hydraulic flow during jack operation.
Q: Which pallet jack models are compatible with the 00591-39573-81 housing?
A: The 00591-39573-81 fits Toyota manual pallet jacks. Verify your equipment model and serial number range before ordering, as housing specifications differ across Toyota pallet jack generations and load capacities.
Q: What are common failure symptoms of a damaged pump housing?
A: Signs of pump housing failure include hydraulic fluid leaks around the pump assembly, loss of lifting pressure, slow or incomplete raise action, and visible cracks or corrosion on the housing exterior. Internal passage blockages may also restrict hydraulic flow.
Q: What material is the pump housing made from?
A: The 00591-39573-81 is manufactured from aluminum alloy or cast iron per Toyota OEM specifications, designed to withstand hydraulic pressures and provide long-term durability in material handling applications. The housing resists corrosion and maintains dimensional stability.
Q: Can the 00591-39573-81 housing be repaired or must it be replaced?
A: Pump housings with internal damage, cracks, or severe corrosion require replacement. Minor external corrosion can sometimes be cleaned, but internal passage wear or blockages necessitate a new housing. Replacement ensures proper hydraulic function and seal integrity.