• By Byte Market Editorial

Kubota B2601 Specs: Weight, Horsepower and LA435 Lift Capacity

The Kubota B2601 is listed at 1,632 lb (740 kg), 24.3 gross engine hp and 19.5 PTO hp in Kubota's U.S. B01 brochure. It has a three-range hydrostatic transmission. For a tractor fitted with the LA435 loader, the same publication gives a full-height lift rating of 948 lb at the bucket pivot pin and 659 lb at a point 19.7 inches forward. Those two loader figures describe different measuring points. Kubota B01 brochure, specification and loader tables.

That is a useful starting point when looking at a used B2601. Before choosing a mower, booking a trailer or ordering loader parts, there are a few details worth resolving. Some manufacturer documents give different engine ratings, and a tractor advertised with a loader may have equipment from a different period.

B2601 specifications at a glance

These entries follow the B2601HSD column in Kubota's U.S. B01 brochure, Cat. 4363-01-US. They describe a published tractor configuration. A loader, bucket, ballast and rear attachment need their own entries in a transport weight calculation. Kubota B01 specification table.

Why do B2601 horsepower figures differ?

The U.S. B01 brochure above labels the engine figure as 24.3 gross hp. The Australian B2301/B2601 brochure lists 25.5 gross hp for the B2601, with the same 19.5 PTO hp. The Australian-hosted operator's manual identifies a D1105-E4-D32 engine and also lists 25.5 gross hp. Both brochures identify their gross-power figures with SAE J1995. The difference cannot be explained simply by calling one figure net horsepower. Kubota Australia B2301/B2601 brochure, operator's manual, printed page 2.

The live Canadian B2601 page checked for this article presents another combination, 23.3 hp and a D1005 engine. The public pages reviewed do not establish a serial-number change that reconciles all these entries. For a Canadian purchase, ask the seller to confirm the engine identification and specification sheet for the actual tractor. Kubota Canada B2601 page.

When a mower seller asks for PTO horsepower, use the PTO entry in the applicable tractor document. A hypothetical attachment requiring a minimum of 22 PTO hp would exceed the 19.5 hp rating in these two brochures, even though either engine figure is above 22. Hitch fit, implement weight and the manufacturer's approved tractor range still need checking separately.

How much can a B2601 loader lift?

Start with the loader model on its identification plate. The LA435 figures cited here apply to that loader. At full height, moving the specified load point forward reduces the published rating from 948 lb to 659 lb. The brochure also gives a 2,146 lb breakout-force figure at the pivot pin. Breakout force describes a different test from lifting a load to full height. Kubota LA435 specification table.

For pallet work, write down the fork assembly weight, load weight, load centre and required unloading height. A pallet placed well forward on forks has different geometry from a load measured at the bucket pin. The 659 lb figure is useful context, but it is not a pallet-fork payload certificate. Have the dealer check the attachment combination, ballast and operating limits against the loader instructions.

The rear hitch has its own rating. The B2301/B2601 operator's manual gives 1,411 lb (640 kg) at 24 inches behind the lift points. Keep that rear-hitch figure separate from the front-loader figures when comparing advertisements. Operator's manual, printed page 3.

What does a B2601 weigh with a loader?

The 1,632 lb tractor entry cannot answer this by itself. Ask for the actual loader and bucket models, any wheel weights or liquid tire ballast, and everything that will remain attached during transport. A rear implement used for ballast can make a substantial difference to both the overall length and the loaded weight.

Build a simple list with one line per fitted item. Mark whether each component weight already includes its mounting frame or bucket. That avoids adding the same part twice. If the seller cannot identify the ballast or equipment, a scale measurement of the complete transport configuration is more useful than adding approximate figures from several advertisements.

Measure the widest attachment and the highest point in the secured transport position. The published tractor width and length do not describe a complete loader-and-implement outfit. Give those measurements and the measured weight to the person arranging the trailer.

Five things to request before buying a used B2601

• Identification photographs. Keep the tractor serial number and engine identification with the listing.
• Loader and attachment plates. Record their model numbers individually, including a mower or backhoe if supplied.
• Tire and ballast details. Ask what is fitted and what will be included at collection.
• A service record. Look for dated work and parts used, rather than relying only on the hour-meter reading.
• The applicable manuals. Check the document identity against the tractor and each attachment before using service specifications.

If a viewing reveals a travel problem, the separate B-series HST first-check guide helps describe the symptom. For oil quantities on a D1105-equipped machine, the D1105 oil-capacity article explains why the machine application matters.

For workshop work, Byte Market lists the B2301/B2601 workshop manual, 9Y111-11560. Its published contents include hydraulic pressure checks and electrical troubleshooting. Review that contents list and the 2014 publication identity against your tractor before buying. Loader repair coverage should be checked against the loader's own model and documentation.