Piston pump
K3V112S
K3V112S single pump, 10–12 t excavator and industrial open circuits
K3V112S is an axial piston pump assembly in the FLUTEK catalogue, K3V112S single pump, 10–12 t excavator and industrial open circuits. Catalogue figures: 112 mL/r displacement, 34.3 MPa rated pressure, 39.2 MPa peak, 588 N·m maximum input torque. It is ordered in the field as K3V112S-1N. It is supplied as a complete unit rather than as loose parts, with the control variant matched to the machine. Fitment is confirmed from the machine model and the nameplate before dispatch, and the unit ships from Guangzhou as a compatible-brand replacement.
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Machine references — confirm your configuration
Fitment lists are compiled from public market data; contact us to confirm your exact machine and shaft / control variant.
Specifications
| Displacement | 112 mL/r |
|---|---|
| Rated pressure | 34.3 MPa |
| Peak pressure | 39.2 MPa |
| Max. speed | 2,700 min⁻¹ |
| Max. self-priming speed | 2,360 min⁻¹ |
| Max. input torque | 588 N·m |
| Pump line | K3V112S single pump |
| Application class | 10–12 t excavator and industrial open circuits |
Related catalogue codes
Buying against a number from a dismantled machine or an old invoice? Send it to us — we map it to the correct unit.
Key features
- Catalogue-verified specifications
- Shaft, regulator and control variant confirmed before dispatch
- Genuine-grade Korean build
- Full spare parts support (cylinder block, valve plate, swash plate, seal kit, regulator)
Orders, dispatch & installation support
Trial orders & minimum quantity
One-piece trial orders are accepted at the normal selling price. Minimum order: 1 piece.
Stock & production schedule
For items in stock, dispatch is arranged immediately after full payment is received. Out-of-stock items require factory production; the production schedule is confirmed with your order. Dispatch follows completion of production and receipt of full payment. Dispatch timing is separate from transit time. Product quotations exclude freight; shipping is quoted separately.
Product issues at installation
If a problem is found during installation and confirmed to be caused by the product itself, the product can be replaced. Damage caused by external factors, including accidental impact during installation or contaminated hydraulic oil, is not covered. Contact us with the model, nameplate and details of the issue for assessment.
Supply and configuration notes
See the order and installation-support terms below. Freight is excluded from the product price and quoted separately. Production scheduling and the complete configuration are confirmed with your order.
Request a quotation
Model and quantity are pre-filled. Add your machine, destination port and contact details — we reply with price, lead time and shipping options.
Where these figures come from
Specifications on this page are taken from the FLUTEK English catalogue dated 2024-11-25 and match the pumps and swing units we ship as China general agent. Machine fitment lists are cross-checked against our parts books before dispatch — send us your machine and pump nameplate and we confirm the correct shaft and control variant.
Reference data for selection purposes. Please confirm the exact shaft, regulator and control variant with our team before ordering.
Common faults on this unit, and what to check first
The diagnosis guides below start from the symptom, list the checks in the order a workshop should work through them, and say which parts usually solve it. Full index: diagnosis guides.
Metal particles, dirty oil, short component life
Oil, filtration and the system as a whole
Contamination is the number one cause of repeat failures. Here is what to do after a failure so the new pump is not destroyed by…
Hoses burst, seals blow, the gauge needle jumps
Valve and pilot control
Hoses failing in the same place, filters splitting or a gauge needle that jumps are transient problems.
Machine slow or noisy when cold
Oil, filtration and the system as a whole
In low ambient temperatures the oil is the problem, not the pump.
All functions slow
Boom, arm and cylinder functions
When travel, swing, boom and bucket are all slow, the fault sits upstream of the individual circuits.
Cylinder drifts down under load
Boom, arm and cylinder functions
Drift is a leakage question. These checks tell you whether oil is passing the piston seal, the control spool or the holding valve…
Foam or milky hydraulic oil
Oil, filtration and the system as a whole
Foam means air, milkiness means water, and both destroy the lubrication film.
Parts related to these checks
Catalogue lines from the same families. Search the full library by part number from the parts library.
Frequently Asked Questions
Which machines does the K3V112S fit?
Our fitment list for the K3V112S covers 10–12 t excavators, industrial equipment or drilling rigs. Fitment is a starting point: send the nameplate photo of the unit on your machine and we confirm the control suffix (DT / DTP / DTH) before you order.
Is the K3V112S a genuine or an aftermarket part?
FRANK primarily supplies FLUTEK products and also offers other brands. Contact us to confirm the exact brand and configuration before ordering. Machine brand names describe applications and do not by themselves confirm fitment.
How much does it cost and how fast can it ship?
Price is quoted per order: send the model, quantity and destination port and we will prepare a product quotation; freight is not included and is quoted separately. Single pieces are welcome, and dispatch is from Guangzhou by express, air or sea.
Which numbers cross-reference to the K3V112S?
Model codes listed together identify related catalogue entries, not automatically interchangeable or superseded units. Confirm the full suffix, shaft, regulator, control and mounting details against the installed unit before choosing a replacement.