Piston pump
K5V80S
K5V80S single pump, 6–10 t hydraulic excavator and industrial open circuits
K5V80S is an axial piston pump assembly in the FLUTEK catalogue, K5V80S single pump, 6–10 t hydraulic excavator and industrial open circuits. Catalogue figures: 80 mL/r displacement, 34.3 MPa rated pressure, 39.2 MPa peak, 529 N·m maximum input torque. It is ordered in the field as K5V80, K5V80DT. 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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Photo pending: currently shows a K3V112S unit from the same series. A K5V80S photo is being prepared.
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 | 80 mL/r |
|---|---|
| Rated pressure | 34.3 MPa |
| Peak pressure | 39.2 MPa |
| Max. speed | 3,000 min⁻¹ |
| Max. self-priming speed | 2,460 min⁻¹ |
| Max. input torque | 529 N·m |
| Pump line | K5V80S single pump |
| Application class | 6–10 t hydraulic 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.
Noise, vibration and rising oil temperature
Pump and pressure supply
Noise plus heat usually means air, starvation or internal leakage. Which one you have changes what you order.
Case drain flow above specification
Pump and pressure supply
Case drain flow shows how worn a pump or motor is without removing it.
Engine stalls or smokes under load
Pump and pressure supply
When the engine pulls down, the pump is usually asking for more torque than the engine can deliver.
Oil temperature keeps rising
Oil, filtration and the system as a whole
Over-temperature thins the oil and shortens seal life, so every function weakens.
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.
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 K5V80S fit?
Our fitment list for the K5V80S covers 6–10 t excavators, concrete 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 K5V80S 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 K5V80S?
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.
Cross-reference on file for the K5V80 family
From customer enquiries and public workshop references we hold 5 K5V80-family machine records across 2 brands. These are references, not an OEM fitment approval — send the nameplate and we confirm the shaft, regulator and PTO before quoting.