Bulldozer
6 photosKomatsu · Bulldozers
Komatsu D51 Medium Bulldozer
The Komatsu D51 has an operating weight of 30,380 lb and a 131 hp engine, with a 3.5 cu yd blade.
Updated October 2026
131 HP30,380 lbsMedium Class2017-presentEst. $141,500 – $310,000
How much is a used Komatsu D51 worth?
HeavyDutyYard estimates a used Komatsu D51 at $141,500–$310,000 (our estimate, not yet checked against recent sales).
HeavyDutyYard estimate
$141,500–$310,000
USD
Not yet checked against recent sales. Year, hours and condition decide where a unit lands.
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About the Komatsu D51 Medium Bulldozer
The Komatsu D51 Medium Bulldozer is a mid-size bulldozer built from 2017 to today.
Owners mostly put it to work on major earthmoving, road construction, quarrying.
Specifications
Engine & Power
- Engine
- Komatsu SAA6D107E
- Horsepower
- 131 HP
- Fuel Tank
- 71.3 gal
Dimensions & Weight
- Operating Weight
- 30380 lbs
- Blade Width
- 9.2 ft
- Ground Pressure
- 6.2 psi
Configuration
- Size Class
- Medium
- Years Produced
- 2017-present
Weight, power, and capacity figures checked October 2026 against D51EXi-24. Older or newer generations of this model may differ.
Common Applications
- Major earthmoving
- Road construction
- Quarrying
- Mining
Popular Attachments
Single or dual ripperAngle bladeU-bladeTile spade
Common Configurations
Standard trackPX (low ground pressure)EX standardU-blade option
How It Compares
| Spec | Komatsu D51 Medium Bulldozer | Caterpillar D5 Medium Bulldozer | John Deere 650K Crawler Dozer |
|---|---|---|---|
| Engine HP | 131 HP | 170 HP | 104 HP |
| Op. Weight | 30,380 lbs | 42,263 lbs | 22,343 lbs |
| Blade Capacity | 3.5 | 5.6 | 2.9 |
| Est. Price Low | $141,500 | $71,000 | $40,000 |
| Est. Price High | $310,000 | $260,000 | $135,000 |
Against the CAT D5, the Komatsu D51 is 11,883 lb lighter, has 39 less hp and has 2.1 cu yd less blade capacity.
Against the John Deere 650K, the Komatsu D51 is 8,037 lb heavier, has 27 more hp and has 0.6 cu yd more blade capacity.
Frequently Asked Questions
How much does the Komatsu D51 weigh?
The Komatsu D51 has an operating weight of 30,380 lb and a 131 hp engine. Cab, counterweight, tracks, and attachments can move the real weight of a given unit up or down from this spec figure, so check the serial plate or the OEM spec sheet for the exact build before booking transport.
How much is a used Komatsu D51 worth?
HeavyDutyYard estimates a used Komatsu D51 at $141,500–$310,000 (our estimate, not yet checked against recent sales).
Where can I sell my Komatsu D51?
Send HeavyDutyYard the year, hours, and condition of your Komatsu D51 and we reply within one business day. We make cash offers on some machines; otherwise we list yours free on the HeavyDutyYard marketplace, where we review every listing and screen buyer messages before they reach you. Transport is coordinated when we buy.
What is the Komatsu D51 used for?
The Komatsu D51 Medium Bulldozer is commonly used for major earthmoving, road construction, quarrying, mining.