Crawler Dozers · Make & Model reference
SEM (Caterpillar subsidiary) SEM 812
Often chosen for smaller projects requiring more power than compact models, but less than full-size.
Operating weight
30,000 lbs
Horsepower
120 hp
Fuel burn
3.5 - 5.0 gph
Years produced
2012 - present
AI-updated · Last refresh 7/19/2026
Full specifications
Blade capacity (SAE)3.5 cu yd
Max drawbar pull30,000 lbs
Track shoe typeSingle grouser
Max blade digging depth1.5 ft
Shipping dimensions
Length17 ft
Width8.5 ft
Height9.5 ft
Weight30,000 lbs
Use these for permit routing and lowboy selection.
Recent auction history
| Year range | Hours | Avg | Low | High |
|---|---|---|---|---|
| 2017-2021 | 3,500-6,000 | $45,000 | $35,000 | $60,000 |
AI price estimate
Excellent, low hours
2019 model year
$70,000
Good, avg hours
2015 model year
$40,000
Fair, high hours
2012 model year
$25,000
Common problems to check
- Engine exhaust manifold cracks
- Blade hydraulic hose chafing
- Undercarriage idler wear
Why buyers pick it
- Maneuverable in confined spaces
- Good fuel economy
- Reliable for everyday tasks
Best jobs for this machine
Finish gradingSmall-scale excavationUtility trenching
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