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Home / Lawn and Garden Tractors / Kubota Lawn Tractors / Kubota GR2100

Kubota GR2100 Maintenance

The Kubota GR2100 is a four-wheel drive garden tractor from GR-series. This model was manufactured between 2005 to 2007. The Kubota GR2100 driveline components: Kubota D782 4 cycle vertical 3-cylinder water-cooled diesel engine and hydrostatic transmission with infinite forward and reverse gears.

A 47.7 cubic inches (0.78 L) engine has a cylinder bore of 2.64" (67 mm), piston stroke of 2.9" (73.6 mm) and rated power of 21 hp (15.7 kW) at 3000 rpm. The maximum forward speed - 6.2 mph (10 km/h), max. reverse speed - 3.1 mph (5 km/h).

The Kubota GR2100 is equipped with a hydrostatic power steering, internal expanding brakes, 16x6.50-8 front tires and 23x10.5-12 rear tires. The wheel base is 50.4 in (1280 mm). The tractor is compatible with the following attachments: a 54" mid-mount mower deck with cutting height of 1.0-4.0 in (25-102 mm), 48" front-mount blade, and 46" front-mount snowblower with hydraulic lift system.

Refill Capacities
Engine oil capacity, qts (L) 3.0 (2.8)
Engine coolant capacity, qts (L) 2.2 (2.1)
Transmission fluid capacity, qts (L) 3.5 (3.3)
Front axle oil capacity, qts (L) 2.0 (1.9)
Mower gear box capacity, qts (L) 0.42 (0.40)
Fuel tank capacity, gal (L) 4.8 (18.0)

Recommended Oil and Fluid
Engine oil type SAE 30, SAE 10W-30, 10W-40. API Service category CC, CD, CF
Engine coolant type Kubota Antifreeze/Coolant
Transmission fluid type Kubota UDT or Kubota Super UDT Fluid
Front axle oil type Kubota UDT or Kubota Super UDT Fluid
Mower gear box oil type SAE 80W-90 gear oil

Service Intervals
Check engine oil level Every 10 hours
Check engine coolant Every 10 hours
Check and tighten loose hardware Every 50 hours
Clean engine air filter element Every 50 hours
Check and clean battery terminals Every 50 hours
Check mower gear box oil level Every 50 hours
Check and adjust fan belt Every 100 hours
Check and adjust mower belt Every 100 hours
Check tire pressure and brakes Every 100 hours
Clean radiator fins Every 100 hours
Lubricate front wheels Every 100 hours
Change engine oil Every 100 hours
Check engine fuel filter Every 100 hours
Change mower gear box oil Every 150 hours
Replace engine oil filter Every 200 hours
Change transmission fluid Every 200 hours
Replace HST transmission filter Every 200 hours
Clean transmission strainer Every 200 hours
Change front axle oil Every 200 hours
Charge battery Every 300 hours
Check engine idle speeds Every 300 hours
Replace engine fuel filter Every 400 hours
Check and adjust valve clearance Every 500 hours
Replace air filter element Every 1000 hours
Flush cooling system and add new coolant Every 1000 hours

Replacement Parts
Engine oil filter part number HH150-32430
Engine fuel filter part number 12581-43012 (Element)
Engine air filter part number K1211-82320 (Element)
Hydrostatic transmission filter part number HHK20-36990
Drive belt part number 15881-97010

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