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KDRDE5K-31/30C50-140-T
KDRDE5K-31/30C50-140 / 50100304-3686
OE-Equivalent Replacement Quality
IATF 16949 / ISO 9001 / CE / RoHS
50 pcs
7 - 15 Days
12 Months
KDRDE5K-31/30C50-140 / 50100304-3686
Kobelco excavator hydraulic pump control using the exact 140 model
Confirm 12v, connector, flange mounted kawasaki cartridge, seals and hydraulic circuit before installation.
| Quantity: | |
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KDRDE5K-31/30C50-140-T is a 12V hydraulic pump solenoid valve for Kobelco excavator hydraulic pump control using the exact 140 model. 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-31/30C50-140-T |
Cross References | KDRDE5K-31/30C50-140 / 50100304-3686 |
Electrical Version | 12V |
Working Pressure Reference | 41 bar |
Interface | Flange mounted Kawasaki cartridge |
Application Scope | Kobelco excavator hydraulic pump control using the exact 140 model |
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-31/30C50-140 / 50100304-3686 |
Electrical | 12V; 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 hydraulic pump control using the exact 140 model |
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 first article sample is reviewed, keep the verified reference, measurements and test result in the service record. Approve KDRDE5K-31/30C50-140-T from the complete old valve marking, 12v 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 cross border quotation needs technical approval, keep the verified reference, measurements and test result in the service record. The 41 bar figure is a catalog or verified product reference, not permission to ignore the equipment hydraulic schematic. Confirm which ports see pressure in both de-energized and energized states, review return line conditions and follow the machine service limits. Pressure capability does not correct a wrong spool function, cartridge depth or manifold port relationship.
During a controller output fault is suspected, keep the verified reference, measurements and test result in the service record. Two valves can share a coil diameter and connector yet use different cartridge lengths, metering notches, spring forces or port logic. In Kobelco service, compare the full reference, manifold bore, installed depth, connector direction and hydraulic symbol. A valve that screws in but routes pressure differently can create weak response, reversed motion or continuous pump loading.
During a mixed voltage shipment reaches receiving inspection, keep the verified reference, measurements and test result in the service record. Measure supply and ground at the loaded connector, then check coil resistance and verify that the controller is actually issuing the command. If electrical input is correct, inspect oil cleanliness, filter condition, cartridge movement and manifold contamination. Separate electrical command from hydraulic response before replacing another valve, otherwise a harness or blocked pilot passage may be missed.
During a removed label is partly unreadable, keep the verified reference, measurements and test result in the service record. Check the printed reference and voltage against the purchase order, then sample connector keying, overall length, mounting interface, seal count and coil resistance. Keep voltage or suffix variants physically separated and traceable. For the first production lot, compare one unit with the approved old component before releasing the remaining quantity to warehouse stock or field service.
During a service kit is packed for remote repair, 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-31/30C50-140-T without correcting dirty oil can reproduce slow response, sticking or repeated coil stress soon after installation.
During a customer reports reversed machine response, keep the verified reference, measurements and test result in the service record. Keep ports capped, seals protected and connector faces free from moisture or impact. Separate 12v and suffix variants with readable carton labels so warehouse picking cannot mix them. Store the valves in a clean, dry area away from welding dust and corrosive chemicals, and retain lot traceability to the approved sample and incoming inspection record.
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.
