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Kubota’s R20 Super Series Wheel Loaders

Upgrades and Thoughtful Engineering Make for Improved Jobsite Performance


TORRANCE, Calif.-- Kubota Tractor Corporation (KTC) offers more strength, comfort and operator benefits with the R20 Super Series Wheel Loaders, the R420S and R520S. “For over 30 years, Kubota has continuously engineered machines that integrate leading diesel technology and innovative hydraulic excellence, meeting and even exceeding the demands of the changing markets. With an optional factory installed cab, 60-amp alternator and modern rounded design, the R20 Super Series take wheel loaders into a next generation,” said Keith Rohrbacker, Construction Equipment Product Manager.

Kubota’s proprietary Load Sensing Transmission (LST) enables efficient load handling by automatically changing from high speed/low torque to low speed/high torque when load conditions vary. The wheel loaders are highly maneuverable in tight spaces, with 40 degrees of articulation and eight degrees of frame oscillation. Four wheel drive and limited slip differential power the machines through rough terrain.

Front and rear auxiliary hydraulic systems are standard and a front valve and control lever are built-in to universally accept hydraulically operated attachments. Clutchless electric shuttle shifting allows for quick, smooth directional changes without the need to brake. A parallel circuit system ensures simultaneous operation between lifting and bucket operations by distributing an appropriate amount of hydraulic fluid to the bucket, loader and remote valve.

Kubota’s R420S and R520S fully articulated wheel loaders are powered by Kubota’s
fuel efficient E-TVCS three- and four-cylinder diesel engines, with hp ratings of 43 and 49, respectively. These engines are equipped with a dual-element air cleaner to protect the engine from jobsite dirt. The R420S produces a maximum bucket breakout force of 6,550 lbs. and the
R520S breakout force is rated at 7,425 lbs.

A factory installed cab is available offering a fully adjustable suspension seat and vent system with heater for optimal operator comfort. Both models utilize an engine mount design, helical gear and an F-shaped fan that significantly reduce noise and vibration.
A standard 60-amp alternator makes adding electrical loads, such as a beacon or additional lights simple.

The R420S and R520S are equipped with OSHA-approved ROPS/FOPS canopy or factory installed cab, retractable seat belt, automatic parking brake, safety starting system, front side operating lights, front and rear turn signal/brake lights and control lever locks.

Kubota Tractor Corporation markets a complete line of excavators from 5.6' digging depth to 12.5' digging depth, along with a complete line of tractors up to 103 PTO horsepower, performance-matched implements, utility vehicles, construction equipment, consumer lawn and garden equipment, and commercial turf products.

For product literature or dealer location information, contact Kubota Tractor Corporation at 3401 Del Amo Blvd., Torrance, Calif., 90503, 1-888-4KUBOTA ext. 900 (1-888-458-2682), or visit

Note to editors: Thank you for keeping this information on file. Kubota frequently introduces new products and product features. Please call before using this release or photo if it is more than one year from the date noted: June 2003.


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