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MechMaxx BH660M 7' Tractor Backhoe Attachment with Mechanical Thumb

$4,499.00

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Description

Tackle digging, trenching, and property maintenance with the BH660 7' tractor backhoe featuring a mechanical thumb, 12" bucket, and a self‑contained hydraulic pump for smooth, independent power. This backhoe is built for landowners, farmers, and contractors running 15–50 HP tractors who need reliable digging depth, stable operation, and fast CAT I hitch compatibility.

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UnionBuilt Supply is an authorized dealer of MechMaxx. All manufacturer warranties are honored.

MechMaxx BH660 7' Tractor Backhoe Attachment with Mechanical Thumb

The MechMaxx BH660 Backhoe Attachment provides a 7‑foot digging depth for tractors working in tight or restricted areas. Its mechanical thumb offers a simple, durable solution for gripping rocks, roots, and debris during excavation and cleanup tasks.

A reinforced boom and bucket linkage support routine digging work, while the 3‑point hitch connection integrates with compatible tractors for small‑scale excavation and property‑maintenance projects.

Fits Category I/II 3‑Point Tractors

Note!

  • Review the specifications of both the backhoe and the tractor — including recommended PTO horsepower, minimum tractor weight, rear lift capacity, hitch type, PTO speed, and connection — to ensure compatibility. If you are unsure, please contact us.
  • Please ensure all pivot pin set screws are fully tightened during assembly. If needed, re-tighten and apply threadlocker to secure the pin and prevent loosening during use.
  • Before use, check and grease all grease fittings on the machine.
  • Add approx. 4 gallons of hydraulic oil before first use, then add approx. 2 more gallons after startup.
  • Do not raise the 3-point hitch after the backhoe is attached to your tractor, as it may cause damage.

Product manual (PDF)

Download PDF
Digging Depth (two foot flat bottom)
Digging Depth (two foot flat bottom)

All-round 6’6” digging depth extension capability allows access to hard-to-reach areas without the need for mobile equipment.

180° Swing Arc
180° Swing Arc

The digging boom allows for a 180-degree swing from side to side. This allows you to dig into those tight spots and dump the dirt where you want it.

Mechanical Thumb
Mechanical Thumb

The mechanical thumb's design makes it suitable for gripping, lifting, and moving. This thumb enhances what this backhoe does.

Smooth Control
Smooth Control

High quality control valve are developed by Italian technology, with high precision and shows very exact control features, offers smooth and precise operation.

Self-contained Gear Pump & Hydraulic Oil Tank
Self-contained Gear Pump & Hydraulic Oil Tank

The self-contained gear pump and hydraulic tank operate independently of the tractor's hydraulic system. Provide stable flow and pressure. Easy to install, superior to PTO driveshaft. (Note! We don't recommend using the tractor's hydraulic ports to power the backhoe. Unstable flow can cause unsmooth operation. Moreover, the MechMaxx backhoe has its own filtration system. Using tractor hydraulics may contaminate the hydraulic oil, damaging components like pump and cylinder.)

ISO or SAE Control Pattern
ISO or SAE Control Pattern

Allow you to change the control pattern between ISO or SAE to suit your preference.

Replaceable Bushings & Pins
Replaceable Bushings & Pins

Replaceable bushings & pins simply replacing, easy maintenance. A full line of replacement parts can be quickly provided.

Standard Hose Fittings
Standard Hose Fittings

JIC(Joint Industrial Council) style hose fittings are rated for 5000 psi. Usually easy to get if you need to replace hydraulic hoses. Not troubled by mismatched joint threads.

Optional Attachments (Sold Separately)
Optional Attachments (Sold Separately)

Parts and accessories in stock. Optional multiple buckets sizes, ripper and quick attach.

  • Demonstration
  • Assembly & Installation-1
  • Assembly & Installation-2
Product Warranty

MechMaxx BH660M 7' Tractor Backhoe Attachment with Mechanical Thumb (SKU: 150162) includes a standard one-year manufacturer warranty covering defects in materials and workmanship under normal use.

Product Extended Warranty Plans

Extended warranty plans may be available for select products. Contact us to confirm eligibility and coverage details.

Max. Digging Depth 7 ft Dipper Stick Cylinder Digging Force 2005 lbs
Digging Depth (two foot flat bottom) 6 ft 6 in Hydraulic Volume Requirements 4 to 5 GPM
Swing Arc 180 Degrees Hydraulic Pressure Requirements 2250psi
Loading Height (bucket at 60 °) 4 ft 9 in Hydraulic Tank Capacity 4.1 US Gal (15.5L)
Reach from Center Line of Swing Pivot 9 ft 1 in Hydraulic Type Recommended AW 46
Transport Height (maximum) 5 ft 2 in Self-contained PTO Pump & Tank Included
Bucket Rotation 180 Degrees ISO or SAE Switch Included
Loading Reach (bucket at 60 °) 3 ft 8 in Standard Thumb Mechanical
Transport Overhang 4 ft 9 in Standard Bucket Size 12 in (3 teeth)
Undercut 1 ft 6 in PTO Speed 540 RPM
Stabilizer Spread (down position) 6 ft 7 in PTO Connection 1-3/8" 6 Spline
Stabilizer Spread (up position) 5 ft 9 in Recommended PTO HP 15 to 50 HP
Stabilizer Spread (lifting height) 3 ft 8 in 3-Point Hitch CAT I
Transportation Height (maximum altitude) 7 ft 2 in Min Tractor Weight 1500 lbs
Loading Height (bucket at 180 °) 8 ft 4 in Min Tractor Rear Lift Capacity 1335 lbs
Transport Overhang (maximum) 4 ft 2 in Packing Size (LxWxH) 57 x 30 x 71 in
Bucket Cylinder Digging Force 2840 lbs Weight with Bucket (N.W/G.W.) 1113/1292 lbs
Regarding tractor compatibility, ensure that the tractor’s PTO HP and 3-point hitch are compatible with the backhoe, and that it meets the minimum weight requirement for safe operation. If the tractor is too light, it can become unstable during travel or operation. To improve stability and reduce tipping hazards, add front ballast as needed. Additionally, take into account factors like speed and terrain slope. Above all, always prioritize safety during operation.

 

WARNlNG: This product can expose you to chemicals including engine exhaust (including diesel engine exhaust when equipped),lead and lead compounds, mineral oils, soots, phthalates, and carbon monoxide which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Certain specification(s) are based on engineering calculations and are not actual measurements. Specification(s) are provided for comparison purposes only and are subject to change without notice. Specification(s)  for your individual equipment will vary based on normal variations in design, manufacturing, operating conditions, and other factors.

  • 5 stars: 26 (96%)
  • 4 stars: 1 (4%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
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Job R

This backhoe attachment is exactly what I was looking for my Kubota 2501 tractor. The packaging was very good with a metal enclosure making it easy to unload and move into the shop. Breaking down the container was easy and the quick install sheet attached was easy to follow with pictures for each step. Overhead hoist in my shop made it easy to get off the pallet and attach, not sure how easy would be without hoist though.
Dug my first ditch for a water line and was very happy with the operation and versatility of the backhoe. Made the job so much easier and with the small size, I was able to get in tight area around the house.

R
Robert W

I bought this for a John Deere 2320. It's solid and way stronger than I thought it might be. I assembled it by myself but it would be easier with help. I really like it. Once I got the right steps in order, attaching it to the tractor is easy. I made a small "T" out of 6x6's to park it when not in use. Makes for an easier reconnect.

J
Jeff N

The 7' BH660 was delivered very well packed in a steel crate. You will need help or some kind of lift to unpack it and handle it. I disassembled the cage but left the bottom frame still attached to the backhoe. Since it was still fairly stable like this, I simply backed my tractor to it and began attaching it. Working alone, it took a few hours to get it ready to work. After trying it out, I was impressed with its power and smooth operation. This backhoe is extremely well made and heavy built. It'll be great doing jobs around the place without having to hire it done.

T
Tom

Very pleased with the backhoe so far. Fit my tractor very well. Was fairly easy to assemble I use engine lifter( cherry picker) to lift it from the skid and I strapped to the tractor to not tip over cause it is backhoe arm heavy.
But instructions and overall quality is great, for the smallest version which I got for my tractor (mahindra max 26xl) you will be OK with 5 gal bucket of hydraulic fluid.
Bleeding went very easy, don't forget to grease all the points and you ready to digg.
I'm in PA in very rocky terrain and I start digging right away to plant some privacy trees and I have to tell I'm very please with the unit.
I can recommend this 100% especially for the value which you cannot beat.
Definitely will be back for other attachments soon.

J
Jim

Ordered the 7 ft backhoe with a larger bucket. Backhoe works well on my Mahindra 1626. It has plenty of power and digs dirt just fine without any issues. My only complaint is unpacking by yourself is tuff so get a friend to help. Overall, very satisfied and it has saved my back from the shovel.

D
Diogo E

Quality backhoe with plenty of power and easily gets the job done. I ended up using this for a lot more than I originally intended. I am very happy with the purchase, and I had a few questions, and their customer services was knowledgeable and quickly responded. I can say I am very satisfied with purchase.

K
Kevin B

Nice little addition to my tractor. Was very surprised by the power and performance of this backhoe. If you’re thinking of getting one you won’t regret it.

J
Joe R

Very easy to assemble and is a work horse. No issues at all. Customer service is top notch and they took care of everything and made it easy. Instructions are some of the best I've ever seen. I will be purchasing again from this company.

C
Charles H

Great machine and well built. Purchased to dig ditches and fix a few drain issues. I have been very impressed with its capabilities. I have used it for ditch digging, reason for purchase, but have also used it to dig out my damaged pond, repaired my bridge and dug a ditch to run electrical conduit. It has not let me down. The 9 foot reach is a plus for getting across my creek and down in the creek. I have used this equipment for things I didn't even think about. It is a great value and very durable. Customer service is top notch from before purchase and after. Friendly and very knowledgeable about their products.

P
Patrick

From delivery to capabilities this unit was exactly what they said it was. Great product overall. It fits on my John Deere 3032 perfectly and has plenty of power. No need to look anywhere else!!!

J
Jonathan C F

Product was installed and works great on my tractor. I have an older Massey Ferguson 35 and it lines up perfectly and has ton of power. Effortless dug about 6-7 feet in rocky terrain with no issues.

T
Timmie E

very nice little machine..took a minute to get used to but once i got the hang of it ..it was smooth sailing

E
Ed W

HELLO
EVERYTHING SEEMS TO WORK SO FAR, TO COLD TO USE IT YET. OWNERS MANUAL TALKED ABOUT WARRANTY ACTIVATION CARD. DID NOT FIND IT WHATS UP WITH THAT.
ED WILLIAMSEN

D
Donald F

Good so far but hasn’t been delivered.

B
Ben k

came quick and hooked right up!

C
Clay C

7' Tractor Backhoe Attachment with Mechanical Thumb, 12" Bucket, Self-Contained Pump, for 15-50 HP, Cat. 1 Tractor, BH660

A
Allan M

It's taken me over a week to install but I am very happy with the quality.

R
Robert W

This is a well built, solid attachment. It's a bit stronger than I thought it might be. Looking forward to putting it through the test.

M
Marty D

It is great to have it used on my land when I need to uproot a tree, dig a footing or foundation, dig a road down a hillside, etc. I need to clear trees, dig roads up hillsides, and prepare rough terrain for small construction.

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