Nomenclature

Blue2Orange

Active member

Equipment
BX2380 with LA344S & QH05. SB1051. SG0554. BB1248. RB0560, Vassar dirt bucket
Apr 3, 2025
106
45
28
Bayview Township
My little Kubota is the BX2380. Specs note 21.7 max HP. So what does the 23 and 80 or 2 and 380 or any other combinations of numbers refer to? Assuming the X is for smaller than B?
 

ken erickson

Well-known member

Equipment
B7100 hst, 2650 front mount snowblower, L2501 hst qa loader
Nov 21, 2010
1,231
2,093
113
Waupaca Wisconsin
My understanding is the 23 refers to HP and 80 is the series. I would guess Kubota rounded up in your case.

My L2501 is 24.something gross HP and is a series 01 .
 

Hugo Habicht

Well-known member
Lifetime Member

Equipment
G1900
Jun 24, 2024
521
667
93
Ireland
I think they always add one and then round (up?).
Makes the tractor (psychologically) more powerful. :)
My G1900 has 18hp.
 

McMXi

Well-known member
Lifetime Member

Equipment
***Current*** M6060HDC, MX6000HSTC & GL7000 ***Sold*** MX6000HST & BX25DLB
Feb 9, 2021
6,497
8,599
113
Montana
My little Kubota is the BX2380. Specs note 21.7 max HP. So what does the 23 and 80 or 2 and 380 or any other combinations of numbers refer to? Assuming the X is for smaller than B?
I think that Kubota does a decent job of nomenclature when it comes to both the numbers on the hood and the numbers on the loader. It's not a perfect system though and rarely do we see such a thing. Take GLOCK pistols for example. Their nomenclature is a complete shit show and it shows a total lack of vision re product growth.

Neal Messick has stated that X in the model number indicates that the model is a "crossover" between models, but what's below a BX? Doesn't make sense.

My tractors indicate 60 hp based on the badging, but the M6060 has 4 more hp (net) than the MX and has a four-cylinder 3.3L engine vs. a four-cylinder 2.4L engine. I see the reason for rounding numbers though.

MX6000 > 63.4 hp (gross), 59.5 hp (net)
M6060 > n/a (gross), 63.5 hp (net)

Out of interest, does anyone have a better way of naming models, or does another manufacturer do a better job? For example, I wouldn't be opposed to a number that indicates the number of cylinders in the engine. John Deere did or does do this. Did tractors 50 years have better badging? I do think that that number on the hood should mean something and inform the owner without confusion and provide useful information.

I wonder how Kubota will name new generations of the M4, M5, M6, M7 and M8 tractors. I like the current model names such as the M5-111 or M6-141, but the Gen 4 M7 has nothing in the name to indicate that it's a Gen 4. The current models are M7-134, M7-154 and M7-174.
 
Last edited:

Bee-Positive

Active member

Equipment
BX1880, FEL, Tooth Bar, MMM, QH, Ballast Box
Nov 16, 2022
187
195
43
Amsterdam, NY
Gross horsepower refers to the engine's output measured without any accessories or load (think engine only on a stand in a lab), while net horsepower is measured with all standard components and accessories attached (actually installed in the tractor).
 

McMXi

Well-known member
Lifetime Member

Equipment
***Current*** M6060HDC, MX6000HSTC & GL7000 ***Sold*** MX6000HST & BX25DLB
Feb 9, 2021
6,497
8,599
113
Montana
I need to make a correction to my earler post. The M series tractors for the most part do include the generation in the badging. The alpha numeric is the model of course, and the first two numbers after the hyphen are the hp range divided by 10, and the last number is the generation. So the M5 is currently Gen 1, the M6 is Gen 2 and the M7 is Gen 4. I think that's a really good way to badge these M series tractors.

M5-091
M5-111

M6-131 > M6-132
M6-141 > M6-142

M7-133 > M7-134
M7-153 > M7-154
M7-173 > M7-174