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Read articles →A real hands-on installation walkthrough showing every step of fitting a Summit third-function hydraulic kit to a Kubota L3301, unboxing, assembling the valve body, mounting hardware, routing hoses into the tractor's hydraulic circuit, and wiring the solenoid to the battery. The crew openly flags a mistake they made with fitting orientation mid-install, which is genuinely useful. Best for owners tackling this exact kit themselves.
Posted by the Broll Brothers channel, presenting as owner-operators doing the install themselves on their own tractor.
A 5/32 Allen wrench for the solenoid bolts, a 7/8 wrench for hydraulic fittings, a 17mm socket for the factory bracket, and a 14mm socket and wrench for the U-bolt bracket.
They installed the fittings backwards, putting the O-ring side away from the quick disconnect that goes to the implement instead of facing it, which they later corrected.
Feed the positive and negative wires through cable sheathing, strip the copper ends, attach crimp-on automotive terminals, then loosen the battery nuts, attach the cables, and retighten.
On their tractor they used the top left port on the hydraulic manifold, but the video stresses reading your own kit instructions since a rear hydraulic kit or backhoe uses a different port.
| Kubota L3301 | Kubota L2501 | |
|---|---|---|
| PTO horsepower | F (2WD gear), DT (4WD gear): 27.7 hp; HST (4WD): 26.2 hp | 19 hp |
| Loader lift capacity | LA525: 2,462 lbf (at bucket pivot pin) | 2,373 lbf (at pivot pin) |
| 3-point lift capacity | 1,874 lb (at lift points) | 1,918 lb |
| Hydraulic flow | 6.3 gpm | 5.15 gpm |
