Dozers
Allis-Chalmers HD-21 classic. Vintage but still trades.
Estimated fair market value in good condition
2023 Model
3 years old
$98,000–$132,500
2021 Model
5 years old
$74,000–$100,500
2018 Model
8 years old
$33,500–$45,500
* Estimates based on MSRP depreciation. Actual value depends on hours, condition, and market.Get an exact valuation →
| Horsepower | 265 HP |
| Operating Weight | 51,500 lbs |
| Year Range | 1975–1985 |
| Base MSRP (New) | $175,000 |
| Avg Annual Hours | 1,500 hrs/yr |
Common attachments that can add significant value to this machine.
Include your attachments when you request a valuation for a more accurate estimate.
Average usage is ~1,500 hours/year. Lower hours command a premium, while machines over 12,000 hours see steeper discounts.
Excellent condition machines can bring 15-25% more than average units. Structural damage, leaks, and worn undercarriage reduce value significantly.
Regional demand, transportation costs, and local construction activity all affect pricing. Markets in the South and Midwest typically see higher demand.
Attachments like SU blade and ripper add value. Include them in your valuation for a complete picture.
Documented maintenance history with dealer records can add 5-10% to the value. Unknown service history creates buyer hesitation and lowers offers.
Production years 1975–1985. Newer emissions-compliant models (Tier 4 Final) generally retain value better than older generations.
Free, instant, AI-powered. Enter your hours, condition, and location for an accurate estimate.
Common questions about the Allis-Chalmers HD-21, answered by EquipBook's equipment experts.
Be the first to know when Allis-Chalmers HD-21 prices change. Monthly market data, comparable sales, and pricing trends.
Free forever. No spam. Unsubscribe anytime.
Other dozers we cover in our valuation database.