Compare Mowers
List prices are the manufacturer’s published figures, re-checked daily; they exclude tax, freight and dealer setup.
A side-by-side reference of each model's stated specifications. MowerFacts doesn’t give opinions: where a published, spec-derived rule can separate machines we mark a Data Pick and show the rule; here, read the values and decide what fits your needs.
Best suited for
What each model is built for, from its duty class and key specs. This is a neutral reference — MowerFacts does not rank one model above another.
- Kubota GR2120 — commercial: daily paid use and high acreage; 48-inch deck
- Kubota T2290KWTNC-48 — commercial: daily paid use and high acreage; 48-inch deck; gas powered
What’s different? The 5 differences that matter most, from the published figures.
- GR2120 uses a Kubota D782 engine; T2290KWTNC-48 uses a Kawasaki FR651V engine. The engine maker builds the engine; the mower maker chooses the model, rating and fit, so the badge alone does not settle output or longevity.
- GR2120 has a Kubota HST transmission; T2290KWTNC-48 has a hydrostatic transmission. The transmission grade tracks duty rating and speed. Grade names are each maker's own and are not comparable across brands.
- GR2120 weighs 968 lbs (439 kg); T2290KWTNC-48 weighs 661 lbs (299.8 kg), a 307 lbs difference. Operating weight bears on trailer payload, ramps and soft turf. On its own it says nothing about build quality. What GR2120's weight means for a trailer ›
- GR2120 runs on Diesel; T2290KWTNC-48 runs on Gasoline. Fuel type sets what you buy and store; it is not a measure of power.
- GR2120 holds 4.8 gal (18 L) of fuel; T2290KWTNC-48 holds 3.6 gal (13.6 L) of fuel, a 1.2 gal difference. Tank size bounds how long a machine runs between stops. Consumption varies with engine, load and speed, so hours per tank are not fixed.
3 more differences, calculated figures and what isn’t comparable
Other verified differences
- GR2120 has a published top speed of 6.2 mph; T2290KWTNC-48 has a published top speed of 6.7 mph, a 0.5 mph difference.
- GR2120 has a 47.5 ci (778 cc) engine; T2290KWTNC-48 has a 44.3 ci (726 cc) engine, a 3.2 ci difference.
- GR2120 has a 21 hp engine; T2290KWTNC-48 has a 21.5 hp engine, a 0.5 hp difference.
Calculated by MowerFacts
- GR2120 works out to 2.4 acres/hour; T2290KWTNC-48 works out to 2.6 acres/hour, a 0.2 acres/hour difference. Calculated by MowerFacts from deck width and the published top speed at 80% efficiency; it is not a manufacturer figure, and real mowing is slower.
Not comparable
- Cut height range: not published for GR2120.
Verified means each manufacturer publishes the figure. A bigger number is only a bigger number; nothing here says which machine is better. The full specification table is below.
Which is faster on your property? › Measure your lawn once and MowerFacts times all 2 against it.
| Spec | GR2120 Kubota · Riding (Lawn Tractor) |
T2290KWTNC-48 Kubota · Riding (Lawn Tractor) |
|---|---|---|
| List price | dealer quote | dealer quote |
| Engine | ||
| Power Source | diesel | gas |
| Displacement | 47.5 ci (778 cc) | 44.3 ci (726 cc) |
| Engine Power | 21 hp | 21.5 hp |
| Engine Make | Kubota D782 | Kawasaki FR651V |
| Fuel Type | Diesel | Gasoline |
| Deck | ||
| Cutting Width | 48 in (1219 mm) | 48 in (1219 mm) |
| Min Cut Height | — | 1 in (25 mm) |
| Max Cut Height | — | 4 in (102 mm) |
| Drive | ||
| Transmission | Kubota HST | hydrostatic |
| Ground Speed | 6.2 mph | 6.7 mph |
| Drive System | Belt | Belt |
| Dimensions | ||
| Weight | 968 lbs (439 kg) | 661 lbs (299.8 kg) |
| Fuel Capacity | 4.8 gal (18 L) | 3.6 gal (13.6 L) |
GR2120: Specs verified against the manufacturer spec sheet on Jun 6, 2026 — kubotausa.com.
T2290KWTNC-48: Specs verified against the manufacturer spec sheet on Jun 6, 2026 — kubotausa.com.
Independent reference database. Specs compiled from manufacturer sources and normalized for comparison; verify with the manufacturer or dealer before purchase.