
KOMATSU GD305A-3 MOTOR GRADERS
Specifications & Market Value

Technical Description
The Komatsu GD305A-3 is a compact motor grader featuring a four-cylinder S4D102E diesel engine producing 100 horsepower at 2,500 RPM with 239.3 cubic inches of displacement. This mid-sized grader delivers consistent power through a four-forward and one-reverse transmission system, achieving maximum forward speeds of 21.5 MPH and reverse speeds of 15.3 MPH. The moldboard measures 10.4 feet in width by 20.9 inches in height, suitable for general road maintenance and construction applications. With an overall length of 22.8 feet, width of 6.9 feet, and operating weight of 17,592.9 pounds, the GD305A-3 offers excellent maneuverability on job sites. The articulation steering system provides a 27-degree turning angle with an 18.7-foot turning radius, enabling precise positioning in tight work areas. The grader features a 34.4-gallon fuel capacity and is equipped with front 9.00-20-8PR and rear 10.00-20-10PR tires for reliable traction. Its Isomount cab design sits 8.1 feet high, providing operators with optimal visibility and comfort during extended operation. The 16.5-foot wheelbase with a 4.4-foot tandem axle wheelbase ensures stable grade control across varied terrain.
Technical Attributes
- Engine Model
- S4D102E
- Max Speed
- 21.5 mph
- Engine Power
- 100 HP
- Operating Weight
- 17,592.90
Dimensions
- Size
- 22.8 ft L x 6.9 ft W x 8.1 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.
Spot an error or missing detail? Help us keep our equipment guides accurate for the community.





