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Wondering what your Kubota model number means? It’s actually a code assembled from several parts that refer to different things. Here’s what each letter or number means from left to right.

Kubota Series Identification

The model number starts with a letter, which designates which series the tractor belongs to. Kubota offers only a few current series classifications: B, L, and M.

Kubota B Series – 20hp to 30hp subcompact tractors designed for lawns and small farms.

Kubota L Series – versatile compact tractors for heavier work, the L series ranges from 30hp to 60hp

Kubota M Series – heavy-duty workhorses designed for commercial use, the M series boasts 40hp – 145hp.

X Variations – if any series identifier is followed by an X, it is the smallest tractor in the line. BX tractors are 20hp, LX tractors are 30hp, and MX tractors are 40hp.

HP Numbers

The next two numbers designate horsepower and it’s a little deceptive. Horsepower ratings are not exact; the actual hp is a couple of points lower. You’d assume the Kubota B2301 model, for example, has 23hp, but it actually has 20.9 gross hp. Still, it’s a good approximate.

Chassis Numbers

Finally, the last two numbers on the end identify the chassis, and that’s where all rhyme and reason go out the window. For the last 15 years or so, the numbers have been more standardized. Before that, it’s anybody’s guess.

If your tractor is less than 15 years old:

Older B Series chassis numbers are 20 or 50
New B Series chassis numbers are 00 or 01
BX Series chassis numbers are 50, 60, or 70
Grand L Series chassis numbers are 30, 40, or 60
Standard L Series chassis numbers are 00 or 01
MX Series chassis numbers are 00
M Series chassis numbers are 60, X or GX (X and GX are 100hp or higher)

Nothing confusing about that…

Note: These are identification codes for Kubota USA. Kubota series tractor identification numbers in other countries are slightly different. For example, if you run across a listing for a Kubota M4072 with 74hp, it’s a European model.

Tractor Variation Codes

Once you get beyond the basic model number, you may find codes in your paperwork or painted on the fender that provide extra information for that specific tractor. This information includes whether it’s two wheel drive (2WD) or four wheel drive (4WD), type of transmission, whether it has a cab, and more. Naturally, the more specialized the tractor, the more possible variations might be identified. While there is some overlap, in most cases, letter codes are different for the different series. For example, in the B series, 2WD is indicated by the letter E, and in the M series, an F identifies 2WD.

Position also matters in some cases. Letters that come at the end of the string after a dash can have a different meaning. TLB is tractor, loader, backhoe, while -T indicates that it’s a specialty tractor made for towing (primarily used in airports).

A few basic codes are generally the same on all models:

C means cab model
CS means creep speed
D or DT means four wheel drive (4WD)
E or F means two wheel drive (2WD)
HST means hydrostatic transmission
GST means glide shift transmission
N means narrow tread (mostly used in orchards or vineyards)
LE means Limited Edition

Here’s the big list for each tractor type:

B Series Lettters	What it Means
D or DT	dual traction (4WD)
E	2WD
HS	hydrostatic transmission
B	bi-speed turn
-T	tow tractor
TL	tractor, loader
TLB	tractor, loader, backhoe

BX Series Letters	Meaning
LB-R	loader, backhoe, with R4 tires
LB-T	loader, backhoe, with turf tires
R	R4 industrial tires
T	turf tires
V	loader valve

L Series Letters	What it Means
DT	dual traction (4WD), also sometimes written as double traction
DTC	dual traction (4WD), cab model
DTCCS	dual traction (4WD), cab model with creep speed
DTN	dual traction (4WD), narrow width specialty tractor
DTS	dual traction (4WD), power steering
DTSC	dual traction (4WD), power steering, two stage clutch, live continuous running PTO
DT-W	dual traction (4WD), wet clutch (Everclutch)
F	2WD
FC	2WD, live continuous running PTO
FS	2WD, power steering
FSC	2WD, live continuous running PTO, power steering
FST	fully synchronized transmission
GST	glide shift transmission
GSTC	glide shift transmission, cab model
GSTCA	glide shift transmission, 4WD, cab model with air ventilation kit
HC	high clearance
HDT	hydraulic shuttle, dual traction (4WD)
HDT-W	hydraulic shuttle, dual traction (4WD), wet clutch
HF	hydraulic shuttle, 2WD
HSTC	hydrostatic feather step transmission, cab model
M	mechanical shuttle
SS	shuttle shift
T	tow tractor
TL	tractor, loader
TLB	tractor, loader, backhoe
W	wide tread for row crop applications

M Series Letters	What it Means
DS	dual speed
C	cab model
DT	dual traction
M	mudder (specialty, for row crop or vegetable)
N	narrow tread (specialty, for orchard or vineyard)
-B	bi-speed turn
-1	large two pump hydraulic system
F	2WD
-CS	creep speed
C	cab model
H	2WD
HC	2WD, cab model OR high clearance
HD	hydraulic shuttle
L	low profile
M	mechanical shuttle
OC	orchard model
S	Synchro Shuttle transmission
SU	special utility, 2WD
SD	Swing Shift transmission
CC	cab model with cold weather package
-F	foldable ROPS
-R	rigid ROPS
-TF	turf special
W	wide row

Sources: orangetractortalks.com, kubotausa.com

Putting it all Together

Say you’re looking at tractors and you come across a L3560HSTC-LE. Now you know it’s an L-Series, 35hp, on a #60 chassis. It has a hydrostatic transmission, a cab, and it’s a limited edition. Simple! Ok, maybe not so simple, but at least you can figure out what you’re looking at.

One last thing to note. Attachments have their own identification codes that have nothing to do with the tractor itself. If you see a code on an attachment, it only refers to the attachment.

Confused? Call us, we’ll help you sort it out

Kubota Serial Number Decoder