Kubota L3770 Tractor Specs, Features & Review Guide

The Kubota L3770 is a Grand L70-series compact utility tractor designed for acreage owners and small farms that need strong hydraulics, easy speed control, and year-round comfort with an available factory cab. With 37 gross engine horsepower and a 3-range hydrostatic (HST) transmission, it’s built for loader work, snow removal, grading, and routine property maintenance where smooth control matters more than shifting gears.  

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Kubota L3770 Quick Specs

• Series: Kubota Grand L70 (L3770)  
• Model years: 2026– (as listed)  
• Engine (gross): 37 hp (27.6 kW)  
• PTO (claimed): 28 hp (20.9 kW)  
• Drive: 4WD  
• Transmission: Hydrostatic, infinite F/R, 3-range  
• Hydraulic pump flow: 8.03 gpm (30.4 lpm)  
• 3-pt hitch: Category 1; lift 3,748 lb at ends  
• PTO: Independent rear, 540 rpm (1.375”); 540 @ 2491 engine rpm  
• Weight: 3,726–4,034 lb (ROPS–cab)  
• Cab / A/C: Cab optional with air-conditioning  

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Engine Details

The L3770 uses the Kubota D1803 diesel, a 3-cylinder, liquid-cooled engine with common-rail direct injection. This setup is designed to deliver steady torque at working RPMs and strong cold-weather behaviour—important for Canadian chores like winter loader work and snow clearing.  

Engine specs

• Engine model: Kubota D1803  
• Displacement: 111.4 cu in (1.8 L)  
• Bore x stroke: 3.43” x 4.03” (87 x 102 mm)  
• Rated speed: 2600 rpm  
• Torque: 84.2 lb-ft (114.2 Nm)  
• Starter / electrical: 12V electric start  

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Transmission & Drivetrain

The 3-range HST gives “infinite” speed control forward and reverse—ideal for repetitive loader cycles, tight maneuvering, and precision work near buildings or fencing. Four-wheel drive, power steering, and wet disc brakes are listed as standard mechanical features.  

Transmission specs

• Type: Hydrostatic (HST)  
• Ranges: 3-range; infinite forward/reverse  

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Hydraulics & 3-Point Hitch

Hydraulics are a major reason buyers choose this class: the L3770 lists 8.03 gpm pump flow and strong 3-pt lift numbers for attachments like rear blades, box scrapers, and some heavier implements.  

Hydraulics

• Pump flow: 8.03 gpm (30.4 lpm)  
• Rear remotes: up to 3 (optional)  

3-point hitch

• Type: Rear Category 1  
• Lift capacity (ends): 3,748 lb (1700 kg)  
• Lift @ 24” behind: 2,646 lb (1200 kg)  

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PTO (Power Take-Off)

The L3770 is listed with an independent rear PTO, set up for common 540 PTO implements (tillers, rotary cutters, snowblowers, etc.).  

• Rear PTO: Independent  
• Speed / shaft: 540 rpm (1.375”)  
• Engine rpm for 540: 540 @ 2491 rpm  

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Dimensions, Weight & Tires

These specs help users check garage fit, trailer capacity, and stability with loaders.

Core dimensions

• Wheelbase: 71.1 in (180 cm)  
• Length: 115.9 in (294 cm)  
• Width: 59.8 in (151 cm)  
• Height: 97.2 in ROPS / 91.3 in cab  
• Ground clearance: 14.2 in (360 mm)  

Weight

• ROPS: 3,726 lb  
• Cab: 4,034 lb  

Standard tires

• Front: 7.00-16  
• Rear: 12.4-24  

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Electrical

• System: Ground negative  
• Battery: 12V, 582 CCA  

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Compatible Attachments (popular combos)

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Front-End Loader: Kubota LA806

• Lift (full height at pin): 1,726 lb (782 kg)  
• Lift (1.5 m at pin): 2,328 lb (1,055 kg)  
• Breakout (at pin): 3,634 lb (1,648 kg)  
• Reach at ground: 74.2 in (188 cm)  
• Max height at pin: 105.4 in (267 cm)  

Backhoe: Kubota BH92A

• Transport height: 102.4 in (260 cm)  
• 2-ft flat digging depth: 104.6 in (265 cm)  
• Reach from pivot: 150 in (381 cm)  
• Loading height: 88.5 in (224 cm)  
• Bucket rotation: 180°  

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What the Kubota L3770 Is Best For

Common Canadian use cases

• Loader work: gravel, manure, pallets, snow piles
• Snow removal: blower (540 PTO), rear blade, front blade (if equipped)
• Driveway maintenance: box blade, land plane, grading
• Acreage mowing: rotary cutter / finishing mower (depending on setup)

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Pros & Cons (for buyers)

Pros

• Smooth HST control for loader and tight work areas  
• Strong 3-pt lift capacity for the class  
• Cab option with A/C for winter/summer comfort  

Cons / things to verify

• Exact trim/options and local spec packages can vary by dealer—confirm with official literature before service/repairs.  

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Kubota L3770 FAQ

How much horsepower does the Kubota L3770 have?

It’s listed at 37 gross engine horsepower, with 28 claimed PTO horsepower.  

Does the L3770 have an independent PTO?

Yes—an independent rear PTO is listed, set up as 540 rpm (1.375”).  

What transmission is on the Kubota L3770?

It’s listed with a 3-range hydrostatic (HST) providing infinite forward and reverse speeds.  

What is the 3-point lift capacity?

Listed lift is 3,748 lb at the ends, and 2,646 lb at 24 inches behind.  

What is the operating weight?

Depending on configuration, listed weight ranges from 3,726 lb (ROPS) to 4,034 lb (cab).  

Kubota L3770 Reviews & Ratings