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KDRDE5K-31/30C50-123-T
KDRDE5K-31/30C50-123 / KDRDE5K-31/30C50-122 / YN35V00052F1
OE-Equivalent Replacement Quality
IATF 16949 / ISO 9001 / CE / RoHS
50 pcs
7 - 15 Days
12 Months
KDRDE5K-31/30C50-123 / KDRDE5K-31/30C50-122 / YN35V00052F1
Kobelco excavator pump control using the matching 123 or 122 valve marking
Confirm confirm from removed valve, connector, flange mounted kawasaki cartridge, seals and hydraulic circuit before installation.
| Quantity: | |
|---|---|
KDRDE5K-31/30C50-123-T is a Confirm from removed valve hydraulic pump solenoid valve for Kobelco excavator pump control using the matching 123 or 122 valve marking. Buyers should confirm the complete old marking, electrical version, connector, flange mounted kawasaki cartridge and hydraulic function before approving replacement stock.
Specification | Value |
|---|---|
Product Type | Hydraulic Pump Solenoid Valve |
Primary Reference | KDRDE5K-31/30C50-123-T |
Cross References | KDRDE5K-31/30C50-123 / KDRDE5K-31/30C50-122 / YN35V00052F1 |
Electrical Version | Confirm from removed valve |
Working Pressure Reference | 41 bar |
Interface | Flange mounted Kawasaki cartridge |
Application Scope | Kobelco excavator pump control using the matching 123 or 122 valve marking |
MOQ | 50 pcs |
Delivery Time | 7 to 15 Days |
Warranty | 12 Months |
Use the original catalog dimensional reference and hydraulic symbol to compare the valve with the removed component and the machine schematic before purchase approval.
Complete every control point below before a sample or bulk order is released.
Approval Point | Buyer Review |
|---|---|
Reference | KDRDE5K-31/30C50-123 / KDRDE5K-31/30C50-122 / YN35V00052F1 |
Electrical | Confirm from removed valve; verify at the loaded connector during the actual command |
Mechanical | Compare flange mounted kawasaki cartridge, cartridge length, seals and installed clearance |
Hydraulic | Confirm normal state, energized state and manifold port relationship |
Machine Evidence | Kobelco excavator pump control using the matching 123 or 122 valve marking |
Separate electrical command, cartridge movement and machine response so the actual wiring or hydraulic fault is not hidden by a parts replacement.
Observed Condition | Recommended Check |
|---|---|
No movement | Check loaded connector voltage, ground, controller command and coil resistance. |
Slow response | Inspect oil cleanliness, filter condition, viscosity and cartridge movement. |
Reversed response | Stop operation and compare normal and energized port logic with the original valve. |
External leakage | Inspect seals, cartridge surface, manifold bore and correct seating depth. |
Repeated heating | Confirm voltage, duty cycle, connector resistance and full magnetic movement. |
During a pilot passage blockage is investigated, keep the verified reference, measurements and test result in the service record. Approve KDRDE5K-31/30C50-123-T from the complete old valve marking, confirm from removed valve electrical version, connector keying, flange mounted kawasaki cartridge, sealing lands and normal hydraulic state. A shared equipment model does not prove interchangeability because pump and manifold revisions can change during production. Send the machine model, serial number and clear removed part photos with the inquiry.
During a warm oil response complaint is diagnosed, keep the verified reference, measurements and test result in the service record. Read the coil label first and measure voltage at the connector while the real machine command is active. The working reference for this page is Confirm from removed valve. Do not infer voltage only from battery count because converters, harness changes and mixed voltage fleets can create misleading assumptions. Record the verified value on the purchase order and incoming inspection label.
During a serial controlled overhaul is prepared, keep the verified reference, measurements and test result in the service record. Verify commanded voltage under load, coil duty cycle, connector resistance and whether the hydraulic element reaches its intended position. Low voltage can prevent full magnetic pull, while excessive voltage or continuous energization can overheat the winding. Contamination that restricts cartridge movement can also increase operating stress, so correct the electrical or hydraulic root cause before fitting another coil.
During a pilot passage blockage is investigated, keep the verified reference, measurements and test result in the service record. Serial number evidence is essential whenever the same equipment family used more than one pump, manifold or electrical harness. Use it with the parts diagram rather than as a substitute for physical checks. If the old valve label is damaged, collect connector, mounting, cartridge and installed location photos so the application can be narrowed without guessing from the machine name alone.
During a repeat coil heating case is investigated, keep the verified reference, measurements and test result in the service record. Reuse is not recommended when the service procedure specifies new seals or the old rings show flattening, cuts or heat damage. Confirm material compatibility with the hydraulic oil, clean the flange mounted kawasaki cartridge and inspect the manifold bore for scoring. Lubricate and install seals without twisting, then follow the equipment torque procedure instead of forcing the cartridge past resistance.
During a valve switches slowly after oil warms, keep the verified reference, measurements and test result in the service record. Fine debris can restrict the moving element, damage sealing lands or block a pilot passage even when the coil energizes normally. Review the equipment filtration requirement, inspect the removed valve for particles and flush the affected circuit when contamination is found. Replacing KDRDE5K-31/30C50-123-T without correcting dirty oil can reproduce slow response, sticking or repeated coil stress soon after installation.
During a first article sample is reviewed, keep the verified reference, measurements and test result in the service record. Treat every suffix as an engineering identifier until its meaning is proven. A suffix can change voltage, connector, spring calibration, spool geometry or mounting details while the base model remains similar. Keep the complete old marking on the quotation and do not shorten KDRDE5K-31/30C50-123 / KDRDE5K-31/30C50-122 / YN35V00052F1 in purchasing records. Accept a cross reference only after dimensional, electrical and hydraulic checks agree.
Send the complete old valve marking, confirmed voltage, machine model and serial number, connector photos, interface dimensions and required quantity for a fitment focused B2B quotation.
