The most powerful machine Kubota builds on the LX chassis: 39.8 gross hp from the same turbo V1505 the LX3520 uses, 32.6 hp at the PTO, and 433 lb more tractor under it. Hydrostatic only, ROPS or factory cab.
1.02 PTO hp per $1,000 of list price
As published by the maker
On the price: The maker's own published starting figure for the base build. A dealer adds a loader, a deck and freight on top.
Lift figures are the maker's and are quoted at whichever point the maker chose; the about page explains why two loaders with the same number do not lift the same pallet.
Comes with
From owner discussion and long-term write-ups
Gathered from owner reports
The LX4020 is the hardest machine in this range to write about honestly, because the owners who talk about it most are the ones having trouble with it. A buyer who drove three hours to find one catalogued his handover: missing paint and hammer marks where the loader frame had apparently been persuaded into place, loose fittings and a missing return line leaking oil from a rear remote, a parking brake needing adjustment and cruise control that did not work. Another describes a few months and sixty hours producing a hydrostatic fault, dead glow plugs, exhaust parts, a coolant leak, missing bolts and a sticking third function, and calls it a lemon. A third owner, who has several Kubotas and keeps returning to the subject, reports a long warranty list around a hundred hours and says his older B-series has been faultless by comparison. Treat the volume of complaint carefully - some of it is one person writing repeatedly - but three separate accounts of build-quality problems on a machine this new is a pattern worth knowing about before you sign.
What owners like is the size and the snow performance. One in northern Vermont runs the LX2980 front blower with a hydraulic chute on a long hilly gravel drive and says he does not miss the loader, keeping the subframe fitted and swapping the blower for pallet forks when something needs moving. Another calls it about the best snow removal machine on the market, with the caveat that so is his 1970 garden tractor with a blower, which is a fair reminder that snow does not demand much horsepower. The loader is the familiar LX complaint: one owner says he loves everything about the machine except the loader, which is simply not strong enough for what he wants, and he could not stretch to a Grand L with the cab he needed.
Buyers cross-shopping it should also know it has been hard to get and hard to sell. There are reports of a dealer-described nationwide shortage, one buyer travelling three hours to find stock, and separately an owner who traded his in and found dealers uninterested, took a significant hit on resale, and was told by consignment sellers that it is a difficult model to move. None of that says the tractor cannot do the work - it is fast, well sized and capable - but it does mean checking the specific machine over carefully at handover and pricing the alternatives properly.
Summarised from public owner discussion, not from testing. Nothing here was measured by this site, and a report that recurs is not the same as a defect rate.
Cross-shopped against
Same brand or same size, nearest in price
Kubota
Entry to the Grand L70 generation that replaced the Grand L60 in 2025, and one of only two in the range built to Deluxe rather than Premium trim. The naturally aspirated D1803-CR-E5 keeps it simple where the four models above it are turbocharged.
Spec sheet & owner notes
Kubota
Where the LX range stops being a big sub-compact and starts being a small compact: the turbocharged V1505 replaces the LX2620's naturally aspirated D1305, PTO output jumps from 19.4 to 28.7 hp, and the bigger LA545 loader comes with it. ROPS, value-spec SU and factory cab builds are all offered.
Spec sheet & owner notesKubota
Cheapest way into Grand L70 Premium trim, and the point where the range turns to turbocharging. At 39 hp it makes less peak power than the $1,791 dearer L4270 but carries the jog dial, loader joystick and full 9.83 gpm pump.
Spec sheet & owner notes