Komatsu D51
Industrial Tractor · 2024
Overview
The Komatsu D51 is engineered for commercial applications demanding maximum uptime. With 133 horsepower, it handles demanding implements and attachments effectively. The hydrostatic transmission provides smooth, infinitely variable speed control.
Owner Ratings
Based on 39 owner reviews
Best For
- ✓Commercial and municipal fleets
- ✓High-hour continuous operation
- ✓Rotary cutters and brush hogs
Not Ideal For
- ✗Residential or hobby use (over-specified)
- ✗Budget-conscious buyers
Key Features
130hp Komatsu SAA4D107E-3 engine
Delivers reliable power and efficient fuel consumption.
SIGMADOZER blade
A standout feature enhancing overall performance.
Hydrostatic power steering
Smooth, intuitive control for effortless operation.
Rigid link undercarriage
A standout feature enhancing overall performance.
ROPS cab
Designed for operator comfort during extended use.
Tier 4 Final emissions compliant
A standout feature enhancing overall performance.
Hydrostatic Dozer Series
This Komatsu grouping includes hydrostatic D-series models commonly selected for grading control, maneuverability, and versatile contractor use. It provides a unified comparison path for adjacent class machines with similar operating philosophy.
Hydrostatic Control Character
Models are known for smooth modulation and precision-oriented grading behavior suited to finish work and detail-sensitive site operations.
- •Useful for fine finishing tasks
- •Predictable directional control response
- •Operator-friendly for detailed work
- •D37 through D61 class coverage
Contractor Versatility
Suitable for mixed-site duties across utility prep, grading, and general earthwork where one machine needs to serve multiple task profiles.
- •Works across varied task profiles
- •Practical class spread for fleet fit
- •Commonly cross-shopped in mid segments
- •Komatsu hydro family covers D37-D61
Class Progression Clarity
D37 through D61 grouping enables straightforward adjacent-model evaluation for right-sizing decisions.
- •Simplifies right-size machine selection
- •Supports standardized operator training
- •Helps align machine to project demands
- •Clear class step from D37 to D61
Ownership Planning
Unified hydro group aids support planning and predictable maintenance strategy through Komatsu's dealer network.
- •Improves fleet service coordination
- •Supports replacement-cycle decisions
- •Enhances procurement consistency
- •Komatsu dealer support available
What Owners Say
- •The D51 at 130hp is an excellent compact dozer for site preparation, farm land clearing, and general earthmoving
- •SIGMADOZER blade design improves material handling efficiency compared to conventional straight-blade configurations
- •The 130hp engine is well-matched to the machine weight — fuel efficiency is good for the work output
- •Cab visibility and controls are well-designed for a dozer of this class — operators adapt quickly
- •Komatsu quality in the compact dozer segment is consistently well-regarded — reliable and cost-effective to operate
Complete Specifications
| Specification | Value |
|---|---|
| Engine | |
| Gross Horsepower | 133 HP |
| Cylinders | 4 |
| Displacement | 4.5L |
| Fuel Type | Diesel |
| Aspiration | Turbo |
| Transmission & Drive | |
| Transmission Type | Hydrostatic |
| Forward Speeds | 3 |
| Drive Type | Crawler |
| Dimensions & Weight | |
| Operating Weight | 28,881 lbs |
| Length | 189" |
| Width | 102" |
Specs & Compare
Add models to compare side by side
| Specification | Komatsu D51 | — | — |
|---|---|---|---|
| Engine | |||
| Gross HP | 133 HP | — | — |
| Cylinders | 4 | — | — |
| Displacement | 4.5L | — | — |
| Fuel Type | Diesel | — | — |
| Aspiration | Turbo | — | — |
| Transmission & Drive | |||
| Transmission | Hydrostatic | — | — |
| Forward Speeds | 3 | — | — |
| Drive Type | Crawler | — | — |
| Dimensions & Weight | |||
| Length | 189" | — | — |
| Width | 102" | — | — |
| Height | 118.2" | — | — |
| Weight | 28,881 lbs | — | — |
| Fuel & Performance | |||
| Fuel Capacity | 71.3 gal | — | — |
| Pricing | |||
| Typical Price | $205,200 | — | — |
| MSRP From | $190,000 | — | — |
Compare Similar Models
Tractors with similar horsepower ratings for side-by-side comparison.
Frequently Asked Questions
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Get More From Your Komatsu D51
Owning it is just the start. These guides cover the attachments, upkeep, and equipment that fit this tractor.
Attachment Compatibility
Match implements by hitch, PTO, and hydraulics.
Read guide3-Point Hitch Guide
Categories, pin sizes, and how to attach implements.
Read guidePTO Attachments Guide
How the PTO works and the implements it drives.
Read guideHydraulic Remotes
Add and troubleshoot rear remotes.
Read guideFarm Fuel Storage
Store and transfer diesel on your property.
Read guideFarm Backup Power
Run a PTO generator off this tractor.
Read guide