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Massimo Buck 400 UTV 4WD EFI, BUCK400 CAMO

SKU: 135471899
Massimo Buck 400 UTV 4WD EFI, BUCK400 CAMO
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Product Rating is 4.3


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Note: This product cannot be shipped to AR,CA,HI,ID,LA,OR,UT,WA

Item Information

The Massimo Buck 400 UTV is a great tool to have at the farm and ranch. This compact UTV has 25 HP with on demand 4 wheel drive and comes standard with one of the best equipment packages available, including a full vented windshield, full hard top, mirrors, aluminum alloy wheels, a 3,500 lb. winch and more.

  • 391cc/25 HP engine with electronic fuel injection and liquid cooling
  • Automatic CVT transmission
  • On demand 4WD with locking differential
  • Rugged 25 in. AT tires with hydrualic disk brakes
  • Compact design with comfortable bench seating
  • Tows up to 1,000 lbs
Massimo UTV's come standard with a 1 year manufacturer warranty.

Specification Description
Brand: Massimo
Ground Clearance: 9 in.
Rear Wheel Size: 25 x 10-12 in.
Transmission Type: Automatic CVT, Shaft Drive
Maximum Weight Capacity: 771 lb.
Special Feature(s): N/A
Engine Type: Four Stroke Single Cylinder
Pattern: Camo
CountryofOrigin: Imported
Braking Mechanism: Hydraulic
Occupant Capacity: Seats 2
Product Height: 74.5 in.
Product Weight: 1140 lb.
Turning Radius: 16 ft.
Power Type: Gas
Engine Brand: Nebula
Warranty: 1 Year Warranty
Front Wheel Size: 25 x 8-12
Product Width: 56.5 in.
Engine Displacement: 391cc
Fuel Tank Capacity: 4.8 gal.
Product Length: 106 in.
Maximum Speed: 34 MPH
Cargo Bed Load Limit: 400 lb.
Part Number: BUCK400 CAMO
Towing Capacity: 1,000 lb.
Color: Green
Horsepower: 25 HP
Wheel Base: 74 in.
Manufacturer Part Number BUCK400 CAMO
Massimo Buck 400 4WD UTV Crew, BUCK400 CAMO is rated 4.4 out of 5 by 83.
Rated 5 out of 5 by from I love our Massimo Easy to drive. Plenty of room. Excellent for hunting. We have two weeks with it. We have taken it to the lease twice. Carried corn. A latter and other supplies. Great in fuel. The hard top and windshield protects elements from outside. We love it. My brother in law. Wants one now.
Date published: 2019-08-04
Rated 4 out of 5 by from We like it! We bought this UTV to use on our small ranch (about 50 acres.) Other UTV's I had researched seem very expensive, even those in a used condition. This Buck has a number of features built-in...a winch, lights, dump bed, 4WD, etc. So far my wife and I have both had no problems at all with it...starts and runs perfectly. It seems to be quite a value for the money.
Date published: 2019-08-02
Rated 5 out of 5 by from Not very happy! I bought this and drove it about 5 times on a dirt road then in a pasture on the 6th time I drove it. A bolt fell out of the axel. Checked for approved service places to take it for repair. None in my area that were listed would work on them , they said Massimo wouldn’t pay. Finally found place 2 hours away that would take it and have been waiting 3 weeks now for the repair. I have to have another axel because driving it with a loose bolt bent the rod. They told me that the warranty probably won’t pay for the repair because the fine print says to check all bolts before driving. I am an older woman and purchased this for farm use not recreation. I have about 3 hours on this. This should not have happened with this small amount of use. I’ll review again when I get it back to report if that warranty was honored
Date published: 2019-08-02
Rated 4 out of 5 by from Fun machine / with issues We bought the msu700 last year have enjoyed the machine . That being said lost the roof the first time i towed it the wind ripped it right off. So we replaced through tsc because massimo wouldnt send a replanement. Installed new one was told to strap roof down for transport so i have two permanent strap holding new roof on and last weekend the new roof ripped three of the mounting screws loose. Roof is poorly made and need to be taken off to be able to transport the machine.
Date published: 2019-07-31
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Will this unit climb steep hills

Asked by: Ranman 12
The Buck 400 does have good power for the compact size, but it is not recommended for steep hill climbs. Smaller hills can be climbed using Low Gear and 4WD. For specific information on this it would be best to contact us directly to go into more detail. We can be reached at or by phone at 877-881-6376. Thanks!
Answered by: Team Massimo
Date published: 2019-07-30

How much of a difference does it make between the 400 and 700?

Asked by: max headroom
Hello. There are several differences with these units. The 700 is larger, has larger tires, greater capacities and a 42 HP engine. The Buck 400 comes equipped with a 25 HP HO single cylinder engine. Both of these units have been very popular with our customers. It really depends on if you would like a basic, true utility vehicle with the Buck 400 or if you'd like something that can provide better performance with the 700.
Answered by: Team Massimo
Date published: 2019-03-01

Does it have lights?

Asked by: Schatzy
Yes, it comes with a complete light package including brakes, turn signals, high and low beam headlights. Let us know if we can help with anything else. Thanks!
Answered by: Team Massimo
Date published: 2019-04-08

What does "piston assisted" dump bed mean?

Asked by: Camhart
There is a piston underneath the dump bed that makes it easier to dump your cargo and supplies when released. Let us know if we can help with anything else. Thanks!
Answered by: Team Massimo
Date published: 2019-07-09

Does the Buck 400 come with a hitch?

Asked by: Hank2074
The Buck 400 does come with a 2" two hitch receiver, but not the hitch. We have these available and you can also utilize several aftermarket manufacturers. If you have any additional questions you can reach us at or at 972-893-3180. Thanks!
Answered by: Team Massimo
Date published: 2019-04-15

When changing the oil on a Buck 400 how much oil do you add and the filter size?

Asked by: Shumts
The Buck 400 does not require an oil filter due to the oil bypass technology. The engine oil capacity is 1.37 quarts. Thanks!
Answered by: Team Massimo
Date published: 2019-03-01

It seems like it’s hard to shift into park, what could be causing that? 

Asked by: JonwD
It should be smooth shifting throughout all gears. Please give us a call or send us an email so we can go over this with you in more detail and make sure it is fixed. We can be reached at 877-881-6376 or Thanks!
Answered by: Team Massimo
Date published: 2019-07-16

Where is it made?

Asked by: Greg SBF
The Buck 400 is made in China and the assembly and testing is done at our headquarters here in Dallas, Texas. Let us know if we can help with anything else. Thanks
Answered by: Team Massimo
Date published: 2019-04-03
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