Kubota GL321
The Kubota GL321 is a tractor produced by Kubota. It is equipped with a 91.5 ci 1.5 L engine. The listed engine power is Diesel (listed): 32.6 hp / 24.3 kW. Transmission: U-Shift. Operating weight: 2822 to 3186 pounds.
Engine Power
Diesel (listed): 32.6 hp / 24.3 kW
Fuel & Capacities
9.25 gal
35.0 L
Transmission
U-Shift
Operating Weight
2822 to 3186 pounds
Overview
 | 1996 - 2001
GL SeriesCompact Utility tractor
GL Series
Compact Utility tractor |
|---|
Production | |
|---|---|
Manufacturer | Kubota |
Compact Utility tractor | |
Variants | |
|---|---|
GL321 | utility |
GL321E | narrow |
Kubota GL321 Engine | |
|---|---|
Kubota 1.5L 3-cyl diesel | |
Fuel tank | 9.25 gal
35.0 L |
Engine details ...  | |
Kubota GL321 Power | |
|---|---|
Engine | 32.6 hp
24.3 kW |
PTO (claimed) | 29.6 hp
22.1 kW |
Mechanical | |
|---|---|
Four-wheel drive | |
Power steering | |
Mechanical wet disc brakes | |
Two-post ROPS. Cab optional. |
Hydraulics | |
|---|---|
Pump flow | 6.3 gpm
23.8 lpm |
Tractor hitch | |
|---|---|
Rear Type | JIS1 |
Rear lift | 1995 lbs
904 kg |
Power Take-off (PTO) | |
|---|---|
Rear PTO Type | 540 (1.375) |
Engine RPM | 557@2800 |
778@2800 | |
966@2800 | |
1279@2800 | |
-783@2800 | |
Dimensions & Tires | |
|---|---|
Wheelbase | 68.9 inches
175 cm |
Weight | 2822 to 3186 pounds |
Front tire | 8-16 |
Rear tire | 13.6-24 |
Full dimensions and tires ...  | |
Electrical | |
|---|---|
Ground | negative |
Battery volts | 12 |
References | |
|---|---|
 | |
GL (T0270-1920-8) published in 1996 | |
Grandel 1 Plus published in 1994, by Kubota |
Engine
Engine Detail — 91.5 ci / 1.5 L Diesel
Manufacturer | Kubota D1503 |
Fuel Type | Diesel |
Configuration | 3-cylinder, liquid-cooled |
Displacement | 91.5 ci
1.5 L |
Bore/Stroke | 3.268x3.638 inches
83 x 92 mm |
Power | 32.6 hp
24.3 kW |
Rated RPM | 2800 |
Starter | electric |
Starter volts | 12 |
Transmission
Transmission options | |
|---|---|
16-speed gear | |
16-speed power shift |
Transmission — 16 forward and reverse gear
Type | gear |
Gears | 16 forward and reverse |
Clutch | dry disc |
Four gears (1-4) in two ranges (low/high) with additional creeper range and shuttle shift. | |
 | |
Transmission — U-Shift
Transmission | U-Shift |
Type | power shift |
Gears | 16 forward and reverse |
Eight power-shift gears in two ranges with shuttle. | |
Dimensions
Kubota GL321 Tires | |
|---|---|
Standard tires (ag) | Front: 8-16. Rear: 13.6-24 |
Dimensions | |
|---|---|
Wheelbase | 68.9 inches
175 cm |
Length | 125.2 inches
318 cm |
Width | 57.3 inches
145 cm |
Height (ROPS) | 78 inches
198 cm |
Height (cab) | 78.4 inches
199 cm |
ROPS Weight | 2822 lbs
1280 kg |
Cab Weight | 3186 lbs
1445 kg |
Ground clearance | 14.2 inches
36 cm |
Front tread | 44.5 inches
113 cm |
Rear tread | 43.7 to 62 inches
110 to 157 cm |
Photos
Kubota GL321 tractor photo
Recommended Implements & Sizing Guide
Engineering recommendations for Kubota GL321 based on its 32.6 HP power envelope and ASAE agricultural standards.
| Implement & Operation | Recommended Size | Workload Rating | Engineering Notes |
|---|---|---|---|
Moldboard PlowPrimary Tillage | 2 to 3 Bottom (14-16")2 - 3 铧 (35-40 cm) | Medium Duty | Standard utility farm tillage. |
Rotary Cutter / MowerMowing & Clearing | 5 ft (60 in)1.5 m | Medium Duty | Pasture maintenance and weeds up to 1.5" diameter. |
Rotary TillerSeedbed Prep | 54 to 60 in135 - 150 cm | Medium Duty | Thorough seedbed preparation in orchards and vegetable plots. |
Disc HarrowSecondary Tillage | 5 to 6 ft (16-18" discs)1.5 - 1.8 m (40-45 cm 耙片) | Light Duty | Small acreage soil break-up and secondary aeration. |
Sizing & Soil Condition NoteActual implement sizing varies depending on local soil conditions (heavy clay vs sandy loam), field slope, and operating speed. Heavy tillage implements may require front ballast weights and wheel weights.
Fluids, Capacities & Working Autonomy
Standard fluid requirements, service intervals, and continuous runtime estimates for Kubota GL321.
Estimated Continuous Field Runtime: 5.5 hrs
Approximately 5.5 hours of continuous field operation at ~75% rated power on a full tank (9.3 gal / 35 L).
Estimated 75% Load Fuel Burn~1.7 gal/hr (6.4 L/hr)
Engine Crankcase Oil
SAE 15W-40 (Heavy Duty Diesel)
Standard Spec: API CK-4 / CJ-4 Heavy Duty
Service Interval: 150 – 250 Hours
Transmission & Hydraulic System
UTTO (Universal Tractor Transmission Oil)
Standard Spec: ISO VG 46 / 68 (Wet Brake & Trans Compatible)
Service Interval: 600 – 1000 Hours
Engine Cooling System
50/50 Ethylene Glycol Pre-mix
Standard Spec: ASTM D6210 / Heavy-Duty OAT Antifreeze
Service Interval: 2 Years / 1500 Hours
Kubota GL321 Specification Unit Converter
Convert power, fluid capacities, and operating weights between metric and imperial standards for Kubota GL321.
Converted Equivalents:
Horsepower (HP)32.6 hp
Kilowatts (kW)24.3 kW
Metric Horsepower (PS / CV)33.1 PS
Direct Competitor Comparison
Compare Kubota GL321 against same-era industry alternatives in the same horsepower class.
Current Model
Kubota
Kubota GL321
Engine Power:Diesel (listed): 32.6 hp / 24.3 kW
★ Baseline Reference
Minneapolis-MolineMarket Competitor
Minneapolis-Moline ZTU
Engine Power:29.4
Production Years:1936 - 1948
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