Product Description
Bishamon OEM Relief Seat, part number BI 12103624, designed for use in BS-55 series manual pallet jack hydraulic units. Direct replacement component for ram assembly on older style Bishamon pallet jacks, referenced in manufacturer service breakdown and compatible with serial ranges 203001 to 305004.
Compatibility: Fits pallet jacks made by Bishamon, model BS-55. Alternate model: BS55; BS 55. SKU: BI 12103624
Specifications
Part Numbers
| OEM Part Number | BI 12103624 |
| Manufacturer Part Number | 12103624 |
| Compatible Equipment Models | Bishamon BS-55 hydraulic unit (manual pallet jacks, serial #203001 to #305004) |
Frequently Asked Questions
Q: What is the BI 12103624 Relief Seat and what does it do?
A: The BI 12103624 is an OEM Relief Seat designed for Bishamon BS-55 series manual pallet jack hydraulic units. It is a direct replacement component for the ram assembly that controls system overpressure protection and prevents hydraulic overload.
Q: Which serial ranges of Bishamon pallet jacks use the BI 12103624 Relief Seat?
A: The BI 12103624 is compatible with Bishamon BS-55 hydraulic units with serial numbers from 203001 to 305004. Verify your equipment serial number before ordering to confirm compatibility.
Q: Is the BI 12103624 Relief Seat compatible with newer Bishamon pallet jacks?
A: The BI 12103624 is designed for older style Bishamon pallet jacks with serial ranges 203001 to 305004. If your equipment has a serial number outside this range, verify compatibility before ordering.
Q: What happens if the BI 12103624 Relief Seat is worn or stuck?
A: A worn or stuck relief seat will cause improper pressure relief function. You may experience inability to lower the load smoothly, pressure spikes, or loss of pressure control. Replacement restores proper overpressure protection and smooth load descent.
Q: Is the BI 12103624 Relief Seat part of the pump or the ram cylinder?
A: The BI 12103624 Relief Seat is part of the BS-55 hydraulic unit ram assembly. It sits in the main cylinder body and controls pressure relief during lift and descent operations.