I had a B3300SU. I put 400 engine hours on it, then sold it for nearly-same-size but much heavier Kubota L3560.
The BIG ISSUE for me is B3300SU lateral stability. The B3300SU is the only 'B' with big wheels so it is the most laterally 'tippy' of all the "B"s. So be EXTRA prudent carrying heavy loads in the FEL bucket, otherwise the potential to roll it is there.
Whenever moving a heavy load in the B3300SU bucket have ample counterbalance mounted on the Three Point Hitch. Backhoe is one example of ample counterbalance.
You can power a 5' Rotary Cutter. You can pull a Disc Harrow with 18" diameter pans. You can pull a 12" X two bottom moldboard plow at full throttle, but you need a contemporary plow, sized to this "intermediate" frame tractor, such as plows sold by everytfhingattachments.com. Old plows, designed for the larger Ford 9N/2N/8N, have a main beam that is too long and collide with the B3300SU bodywork.
Small issues: The HST transmission has a high pitched whine. Using Kubota "Super UDT2" hydraulic fluid reduces the whine significantly. I always wore ear plugs operating the B3300SU.
I believe all B3300SU tractors came with hydrostatic (HST) transmission. Highly desirable, even with the whine.
No Position Control on the Three Point Hitch hydraulic lift. Instead, B3300SU has QIV, also written as 1/4" valve.
Personally, I liked the QIV, especially when using my Moldboard Plow and Disc Harrow. QIV only fell short when operating a Rotary Cutter, and you work around this handily with $30 limit chains.
Most B3300SU owners never read how to adjust the QIV in the Operator's Manual.
With Backhoe and Auger, 182 hours and a price of $6,500 YOU SHOULD GRAB IT IMMEDIATELY. A new BX25 tractor-loader-backhoe is $18,500,
plus sales tax, and BX25 is less capable.
If your seller financed his tractor through Kubota, and he is still paying, there is a 90% chance the tractor is covered by KTAC insurance that will cover bodywork and all other "damage" repairs after $250 deductible, for the current, enrolled owner.
Go buy it!!!!!
EIGHT T-B-N LINKS TO MY FORMER B3300SU:
http://www.tractorbynet.com/forums/...ta-b3300su-zerco-check-chains.html?highlight=
http://www.tractorbynet.com/forums/...da-planting-sand-pears-kubota.html?highlight=
http://www.tractorbynet.com/forums/...opic-stabilizers-check-chains.html?highlight=
http://www.tractorbynet.com/forums/...ta-b3300su-rollover-box-blade.html?highlight=
http://www.tractorbynet.com/forums/...tchet-rake-scraping-up-around.html?highlight=
http://www.tractorbynet.com/forums/attachments/274971-howse-16-18-disc-harrow.html?highlight=
http://www.tractorbynet.com/forums/...everything-attachments-photos.html?highlight=
http://www.tractorbynet.com/forums/attachments/271517-king-kutter-60-rotary-harrow.html?highlight=