Kubota F3990
Lawn Tractor · 2014
Overview
The Kubota F3990 is designed for residential property owners seeking reliable mowing performance. With 39 horsepower, it handles residential mowing tasks effectively. The hydrostatic transmission provides smooth, infinitely variable speed control.
Owner Ratings
Based on 56 owner reviews
Best For
- ✓Residential lawn maintenance up to 2 acres
- ✓Homeowners wanting low-maintenance operation
Not Ideal For
- ✗Properties requiring loader work or tillage
- ✗Commercial or agricultural applications
Key Features
39HP Kubota V1505 4-cylinder diesel
A standout feature enhancing overall performance.
front-mount mower with 54/60/72-inch decks
Engineered for a clean, even cut across your property.
4WD
Maximizes grip and stability across varied terrain.
hydrostatic transmission
Smooth, intuitive control for effortless operation.
power steering
A standout feature enhancing overall performance.
shaft-drive PTO
Enables connection to a wide range of implements.
cab available
Designed for operator comfort during extended use.
ROPS
A standout feature enhancing overall performance.
F Series Front-Mount Mower
The F series is Kubota's premium front-mount diesel mower line, designed for commercial landscapers, municipalities, and institutional groundskeepers. With Kubota diesel engines, shaft-driven PTO, 4WD, and front-mounted decks up to 72 inches, the F series delivers maximum visibility, maneuverability, and year-round versatility with snow equipment and other front attachments.
Front-Mount Deck Advantage
The front-mounted mower deck gives operators a clear view of exactly where they're cutting — no guessing about the deck edges behind you. This improves trimming accuracy around obstacles, reduces the need for string trimming follow-up, and allows mowing under low-hanging trees and overhanging fences that would block a rear-deck machine.
- •Full visibility of the cutting area for precise trimming
- •Mow under overhangs, fences, and low branches
- •Reduces string trimmer follow-up time significantly
- •Out-front articulation follows ground contours independently
Kubota Diesel with Shaft-Drive PTO
F series mowers use Kubota diesel engines paired with shaft-driven PTO — no belts between the engine and mower deck. This eliminates belt maintenance and delivers consistent blade speed regardless of load, resulting in a cleaner cut and less downtime.
- •Kubota 3-cylinder diesel: 26 HP (F2690) to 38.5 HP (F3990)
- •Shaft-drive PTO — no mower deck belts to replace
- •Consistent blade speed for uniform cut quality
- •Diesel fuel savings of 30-40% vs comparable gas machines
4WD & Power Steering
All F series models feature 4WD and power steering, providing confident operation on slopes, wet turf, and soft ground. The 4WD system is especially valuable during spring and fall when ground conditions are frequently soft, and in winter when running snow equipment.
- •Full-time 4WD for traction on slopes and wet terrain
- •Power steering for effortless all-day operation
- •Tight turning radius despite the front-mount configuration
- •Differential lock for maximum traction when needed
Year-Round Versatility
The front-mount design accepts snow blowers, angle blades, rotary brooms, and other attachments, making the F series a true four-season machine. Many municipalities and commercial operators justify the F series purchase by using it for snow removal 4-5 months of the year.
- •Front-mount snow blower for heavy snow clearing
- •Angle blade and rotary broom attachments available
- •Heated cab option (F3990) for winter comfort
- •Multiple mower deck sizes: 60-inch and 72-inch options
What Owners Say
- •The most powerful front-mount mower Kubota makes with the smooth 4-cylinder diesel
- •39 HP handles the largest deck sizes at full speed without bogging even in thick spring growth
- •Cab option with A/C makes this a year-round machine for commercial operations
- •Shaft-drive PTO eliminates belt maintenance entirely
Complete Specifications
| Specification | Value |
|---|---|
| Engine | |
| Gross Horsepower | 39 HP |
| Cylinders | 4 |
| Displacement | 1.498L |
| Fuel Type | Diesel |
| Aspiration | Naturally aspirated |
| Transmission & Drive | |
| Transmission Type | Hydrostatic |
| Drive Type | 4WD |
| Dimensions & Weight | |
| Operating Weight | 1,716 lbs |
| Length | 98.9" |
| Width | 78.1" |
| Wheelbase | 51.2" |
| Compatibility | |
| Mower Decks | 60/72 |
Specs & Compare
Add models to compare side by side
| Specification | Kubota F3990 | — | — |
|---|---|---|---|
| Engine | |||
| Gross HP | 39 HP | — | — |
| Cylinders | 4 | — | — |
| Displacement | 1.498L | — | — |
| Fuel Type | Diesel | — | — |
| Aspiration | Naturally aspirated | — | — |
| Transmission & Drive | |||
| Transmission | Hydrostatic | — | — |
| Drive Type | 4WD | — | — |
| Dimensions & Weight | |||
| Length | 98.9" | — | — |
| Width | 78.1" | — | — |
| Height | 78.1" | — | — |
| Wheelbase | 51.2" | — | — |
| Weight | 1,716 lbs | — | — |
| Fuel & Performance | |||
| Fuel Capacity | 16.1 gal | — | — |
| Max Speed | 12.9 mph | — | — |
| Pricing | |||
| Typical Price | $23,760 | — | — |
| MSRP From | $22,000 | — | — |
Compare Similar Models
Tractors with similar horsepower ratings for side-by-side comparison.
Frequently Asked Questions
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Get More From Your Kubota F3990
Owning it is just the start. These guides cover the attachments, upkeep, and equipment that fit this tractor.
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