Kubota GR2020G
Riding (Lawn Tractor) mower · Model GR2020G · Commercial-duty · Gas
Kubota doesn’t publish a list price for this model — it’s dealer quote only. The Kubota product page is the place to start.
- Weighs 882 lb
- On a 6×12 trailer 1,782 lb towed, single-axle 3,500 lb
- Mows an acre in 36 min (25 at top speed) How long for your yard? ›
- How these are worked out ›
The Kubota GR2020G is a commercial-grade gas lawn tractor, built for daily professional use, with a 48-inch deck and a 624cc engine making 20.5 hp. It weighs 882 lb (400.1 kg).
At a glance
Compare similar mowers See how this mower compares with machines of a similar size and purpose.
Chosen by stated rules, not opinion: same class, a deck within 6 in of this one, the same kind of power and a compatible duty class, then the closest power, weight and price, with other makers preferred. Figures are the manufacturers’ published ones; nothing is estimated.
Engine
| Power Source | gas |
|---|---|
| Displacement | 38.1 ci (624 cc) |
| Engine Power | 20.5 hp |
| Engine Make | Kohler CH640 |
| Fuel Type | Gasoline |
Deck
| Cutting Width | 48 in (1219 mm) |
|---|---|
| Deck Material | 10 Gauge Steel |
| Deck Gauge | 10 |
Drive
| Transmission | Kubota HST |
|---|---|
| Ground Speed | 6.2 mph |
| Drive System | Belt |
Dimensions
| Weight | 882 lbs (400.1 kg) |
|---|---|
| Fuel Capacity | 4.2 gal (15.9 L) |
Professional use
How the GR2020G fits commercial and high-acreage work, from the specs we have. Duty class: Commercial.
Productivity computed from deck width and ground speed. Compare on the calculator ›
| Deck width | 48 in |
|---|---|
| Engine make | Kohler CH640 |
| Engine displacement | 624 cc |
| Engine power | 20.5 hp |
| Transmission | Kubota HST |
| Ground speed | 6.2 mph |
| Fuel capacity | 15.9 L |
| Weight | 400.1 kg |
| Deck construction | 10 Gauge Steel |
| Deck gauge | 10 ga |
Kubota doesn’t publish 9 of these for the GR2020G: drive type, cut-height range, warranty, commercial warranty, spindle type, frame construction, anti-scalp rollers, drive tire size, seat type.
See the Kubota commercial pro hub › · Professional buying hub ›
Similar models
Other riding (lawn tractor) mowers with comparable specs — including other brands — that buyers cross-shop with the GR2020G.
Specs verified against the manufacturer spec sheet on Jun 6, 2026 — kubotausa.com.
See every mower with a Kohler engine ›
What the parts on this spec sheet mean
Other Kubota GR Series models › 1 more in this range: GR2120
See all Kubota mowers and specs ›
Spot a wrong spec? Suggest a correction.
Independent reference database. Specs compiled from manufacturer sources and normalized for comparison; verify with the manufacturer or dealer before purchase.
What the specs work out to
Figures MowerFacts computes from Kubota’s own numbers — not published by the manufacturer.
Mowing time
- ¼ acre9 min 6 min
- ½ acre18 min 12 min
- 1 acre36 min 25 min
- 2 acres1 h 11 min 50 min
- 5 acres2 h 58 min 2 h 5 min
About 36 min per acre at 1.68 acres/hour, mowing at 4.3 mph. The second figure is at the published 6.2 mph top speed (2.4 acres/hour) — faster than anyone really mows. About 7.1 acres per tank.
Weight & hauling
- Machine weight882 lb
- + 6×12 trailer900 lb
- Towed weight1,782 lb
- single-axle 3,500 lbCarries it, 1,718 lb spare
- tandem-axle 7,000 lbCarries it, 5,218 lb spare
Needs a single-axle 3,500 lb trailer and a vehicle rated to tow at least 1,782 lb.
Gate & trailer fit
- 32 in gateToo wide
- 36 in gateToo wide
- 48 in gateToo wide
Needs at least 54 in of clearance (estimated).
Power & run time
- Power per deck inch0.427 hp/in
- Run time per tank~4.2 h
Mowing times assume 1.68 acres/hour: deck width x 4.3 mph at 80% efficiency, which allows for overlap, turns and trimming. 4.3 mph is 70% of the 6.2 mph top speed Kubota publishes - almost nobody mows flat out. The "at top speed" figure is the same sum at 6.2 mph, shown so you can see it.
Fit uses the deck width plus 6 in for the discharge chute, because Kubota doesn't publish an overall width — measure before buying if a gate is tight.
Towed weight adds a 900 lb allowance for a 6x12 open utility trailer to Kubota's published machine weight. Your trailer's own weight is on its VIN plate. Tongue weight, axle placement and your vehicle's tow rating are still yours to check — this is the load, not a loading plan.
Run time assumes a typical 1 gal/hour burn at working load; real consumption varies with engine, load and cut.
Kubota GR2020G questions
What size deck is on the Kubota GR2020G?
The Kubota GR2020G has a 48-inch (1219 mm) cutting deck with 10 gauge steel construction.
What engine is in the Kubota GR2020G?
The Kubota GR2020G is powered by a Kohler CH640, 624 cc, 20.5 hp. Horsepower is the manufacturer's own rating.
How much does the Kubota GR2020G weigh?
The Kubota GR2020G weighs 882 lb (400.1 kg) as specified by Kubota.
What size trailer do I need for the Kubota GR2020G?
At 882 lb, the Kubota GR2020G on a typical 6x12 open utility trailer (about 900 lb empty) is roughly 1,782 lb of towed weight. That is within a single-axle 3,500 lb trailer, and your tow vehicle needs to be rated for at least 1,782 lb. Tongue weight, axle placement and your own trailer's empty weight still have to be checked — this is the arithmetic, not a loading plan.
How fast is the Kubota GR2020G?
Top ground speed is 6.2 mph. With its 48-inch deck that works out to about 2.4 acres per hour at 80% efficiency — allowing for overlap, turns and trimming.
How long does the Kubota GR2020G take to mow an acre?
About 25 min per acre, from its 48-inch deck at 6.2 mph and 80% efficiency — roughly 2.4 acres an hour, so five acres is about 2 h 5 min. Rough or obstacle-heavy ground takes longer; this is deck width times ground speed, not a timed test.
How big is the fuel tank on the Kubota GR2020G?
The Kubota GR2020G holds 4.2 gal (15.9 L) of fuel.
How much does the Kubota GR2020G cost?
Kubota doesn't publish a list price for the Kubota GR2020G — it's sold on a dealer quote. MowerFacts records prices only where the manufacturer publishes them.
What is the Kubota GR2020G built for?
Commercial-duty riding mower. Built for daily, paid commercial use.
Source: Kubota (manufacturer) · archived copy