
KOMATSU GD661A-1 MOTOR GRADERS
Specifications & Market Value

Technical Description
The Komatsu GD661A-1 is a robust motor grader engineered for demanding grading and earthmoving tasks. It features a 6-cylinder S6D105 diesel engine with a displacement of 396.1 cu in, delivering 179.7 hp at 2500 rpm, ensuring reliable performance across a variety of job conditions. The machine has an overall length of 27.5 ft, a wheelbase of 19.7 ft, and a width over tires of 7.9 ft, providing excellent stability and maneuverability. The blade base measures 8.6 ft, while the moldboard width is 12.2 ft and height is 25.4 in, allowing for efficient material handling and grading precision. Standard operating weight is 29,321.5 lbs, supported by 13.00-24-10PR tires. The articulating steering system offers a 26-degree articulation angle and a turning radius of 22.7 ft, enhancing agility in tight spaces. The transmission provides 6 forward gears, with a maximum forward speed of 27.8 mph and reverse speed of 33.9 mph. Ground clearance at both front and rear axles is 1.2 ft, and the fuel tank capacity is 75.3 gal, supporting extended operation. This motor grader is designed for durability, ease of operation, and versatility in construction and road maintenance applications.
Technical Attributes
- Engine Model
- S6D105
- Engine Power
- 179.7 HP
- Max Speed
- 27.8 mph
- Operating Weight
- 29,321.50
Dimensions
- Size
- 27.5 ft L x 7.9 ft W x 11.5 ft H
Category
- CONSTRUCTION
- → MOTOR GRADERS
Data Accuracy and Verification
Specifications, market trends, and valuation estimates are compiled from manufacturer documentation, historical sales, and industry sources. While care is taken to ensure accuracy, this information is provided for reference purposes only and may contain errors or omissions. Users should independently verify all data before making buying or selling decisions. Valuations do not represent guaranteed transaction prices or binding offers, and Aucto assumes no liability for decisions made using this data.
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