40459

Frequently Asked Questions

Q: What is SKU 40459 and what does it do?
A: SKU 40459 is a replacement inner pump housing for manual pallet jack hydraulic units. It is the precision-machined cast iron component that houses the piston, seals, return spring, and thrust bearing. This part is critical for hydraulic pressure generation and control.

Q: What material is the 40459 pump housing made from?
A: The 40459 is constructed from high-strength cast iron using a sand-cast process. Machined surfaces are uncoated to ensure proper seal fitment and hydraulic function. This material composition provides durability in standard indoor and outdoor material handling applications.

Q: Which pallet jack equipment does the 40459 pump housing fit?
A: The 40459 is compatible with manual pallet jacks from Crown, Toyota, Raymond, Yale, and Hyster. Verify your equipment serial range before ordering. The pump housing must match your exact hydraulic unit assembly to ensure proper component fitment.

Q: What internal components fit inside the 40459 housing?
A: The 40459 is precision-machined to accommodate piston assemblies, hydraulic seals, return springs, and thrust bearings. All internal dimensions are critical tolerances. Ensure replacement piston and seal kits match the 40459 housing specifications exactly.

Q: Does the 40459 have any cross-reference or supersession part numbers?
A: No cross-reference or supersession part numbers have been verified for SKU 40459. This is the primary OEM part number. If you need confirmation of compatibility with a different equipment brand or model, contact us with your serial number.

Q: What indicates that a 40459 pump housing requires replacement?
A: Common failure symptoms include loss of hydraulic pressure, oil leakage from the housing seams, inability to achieve full lift height, or internal grinding noises during pump cycles. Any internal surface damage or seal groove deterioration requires replacement.