






🚜 Elevate your Kubota’s power with precision hydraulic control!
The Summit Hydraulics Third Function Valve Kit upgrades Kubota MX4700 to MX5800 series tractors by adding an electronically controlled third hydraulic function. Designed with rugged aluminum housing, it supports up to 5080 PSI and 15 GPM flow, enabling simultaneous multi-function use via the power beyond port. Compatible with LA844 and LA1065 loaders, this kit allows easy integration of attachments like grapples and snowplows without expensive factory modifications.








| Material | Aluminum |
| Brand | Summit Hydraulics |
| Exterior Finish | Aluminum |
| Inlet Connection Size | 3.5 Inches |
| Inlet Connection Type | Agricultural Style |
| Outlet Connection Type | Agricultural Style, 1/2” diameter, 3” body length |
| Maximum Operating Pressure | 5.08E+3 Pound per Square Inch |
| Number of Ports | 6 |
| Outlet Connection Size | 3.5 Inches |
| Specification Met | sae |
| Manufacturer | Summit Hydraulics |
| UPC | 765552697770 |
| Part Number | TFK5 |
| Item Weight | 23 pounds |
M**
Quality and perfect fit.
I researched and watched alot of videos and read reviews of this kit. Kit arrived and it was exactly as described. It took me about an hour to install with no problems. Very pleased with this item.
J**O
Quality workmanship
Added this to my MX5200 and it works perfect! Came with all the hardware and zip ties, and everything seems to be top quality. Very happy with this purchase
A**R
Great Kit
At over 200 dollars cheaper than the LandPride Kit this is a good way for mechanically minded to save some money. Directions lack detail but anyone with a bit of common sense can figure it out. Like others I affixed the hydraulic hoses to bucket leveling indicator brackets with zip ties and wish there was designed bracketry included in the kit for this purpose.Also something i learned, but should have realized when i read the directions. This kit is momentary on (which is perfectly fine, i just didn't realize it in my head till assembly). Momentary on.... meaning when you press one button on the joystick you send hydraulic fluid one direction and it stops when you release the joystick button. Press the other button and hydraulic fluid flows the other way and stops when the button is released. I can lift the bucket/plow plus operate the third function simultaneously.I do wish there was a way to lock the button so you could continuously run something like a quick attach front snow blower or sweeper ( not sure if the hydraulic gpm would be sufficient).
A**R
Fit & function
Fit and works as described
J**S
Ease of installation
Installed this unit in less than 1.5 hours. Easy to follow instructions. Expensive, but has quality components.
A**0
Good Value
Kit was complete and functions well. I called the company directly and the recommended this kit for my LA463 loader on my L3400DT.
A**R
Great product
Like everything about it, easy to install. Used for my tractor.
J**S
Had to modify
Wasn’t designed for my model but modified to work
Trustpilot
1 week ago
3 days ago