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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 GR2020G — commercial: daily paid use and high acreage; 48-inch deck; gas powered
  • John Deere X394 Lawn Tractor with 48-inch Deck — prosumer: larger home properties and light acreage; 48-inch deck; gas powered
What’s different? The 5 differences that matter most, from the published figures.
  1. GR2020G has a Kubota HST transmission; X394 Lawn Tractor with 48-inch Deck has a K58 hydrostatic integrated with transaxle transmission. The transmission grade tracks duty rating and speed. Grade names are each maker's own and are not comparable across brands.
  2. GR2020G has a 10 Gauge Steel deck; X394 Lawn Tractor with 48-inch Deck has a 10 gauge 0.135 in. 3.4 mm deck.
  3. GR2020G has Belt drive; X394 Lawn Tractor with 48-inch Deck has Dual belt drive.
  4. GR2020G holds 4.2 gal (15.9 L) of fuel; X394 Lawn Tractor with 48-inch Deck holds 3.3 gal (12.5 L) of fuel, a 0.9 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.
  5. GR2020G weighs 882 lbs (400.1 kg); X394 Lawn Tractor with 48-inch Deck weighs 754 lbs (342 kg), a 128 lbs difference. Operating weight bears on trailer payload, ramps and soft turf. On its own it says nothing about build quality. What GR2020G's weight means for a trailer ›
2 more differences, what isn’t comparable

Other verified differences

  • GR2020G has a 20.5 hp engine; X394 Lawn Tractor with 48-inch Deck has a 23 hp engine, a 2.5 hp difference.
  • GR2020G has a 38.1 ci (624 cc) engine; X394 Lawn Tractor with 48-inch Deck has a 44.3 ci (726 cc) engine, a 6.2 ci difference.

Not comparable

  • Warranty: not published for GR2020G.
  • Bagger Capacity: not published for GR2020G.
  • Engine Make: not published for X394 Lawn Tractor with 48-inch Deck.
  • Fuel Type: not published for X394 Lawn Tractor with 48-inch Deck.
  • Cut height range: not published for GR2020G.

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.

Add another (2 more fit): every riding (lawn tractor) mower · more Kubota · more John Deere
Side-by-side specifications: Kubota GR2020G vs John Deere X394 Lawn Tractor with 48-inch Deck
Spec GR2020G
Kubota · Riding (Lawn Tractor)
X394 Lawn Tractor with 48-inch Deck
John Deere · Riding (Lawn Tractor)
List price dealer quotedealer quote
Engine
Power Source gas gas
Displacement 38.1 ci (624 cc) 44.3 ci (726 cc)
Engine Power 20.5 hp 23 hp
Engine Make Kohler CH640 —
Cylinders — 2
Engine Model — FR691V
Fuel Type Gasoline —
Deck
Cutting Width 48 in (1219 mm) 48 in (1220 mm)
Min Cut Height — 1 in (25 mm)
Max Cut Height — 4 in (102 mm)
Deck Material 10 Gauge Steel 10 gauge 0.135 in. 3.4 mm
Deck Gauge 10 10
Drive
Transmission Kubota HST K58 hydrostatic integrated with transaxle
Ground Speed 6.2 mph 6.2 mph
Reverse Speed — 3.5 mph
Drive System Belt Dual belt
Dimensions
Weight 882 lbs (400.1 kg) 754 lbs (342 kg)
Fuel Capacity 4.2 gal (15.9 L) 3.3 gal (12.5 L)
General
Warranty — 4 yr
Bagger Capacity — 19 bu (670 L)

GR2020G: Specs verified against the manufacturer spec sheet on Jun 6, 2026 — kubotausa.com.

X394 Lawn Tractor with 48-inch Deck: Specs verified against the manufacturer spec sheet on Jun 6, 2026 — deere.com.

Independent reference database. Specs compiled from manufacturer sources and normalized for comparison; verify with the manufacturer or dealer before purchase.

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