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CaseIHModel A
CaseIH STX500
Four-Wheel Drive
- power
- 500 hp
- displacement
- 912 ci
- Cylinders
- 6
- Forward gears
- 16
Head to head · Four-Wheel Drive
CaseIH STX500 vs Challenger MT851
ChallengerModel B
Challenger MT851
Agricultural
- power
- 504 hp
- displacement
- 934 ci
- Cylinders
- 6
- Forward gears
- Not recorded
CaseIHCaseIH STX500
vs
ChallengerChallenger MT851
How they compare
Headline specs vs. the whole Four-Wheel Drive
Engine Power
▲ MT851 higher · +4 hp (<1%)STX500500 hp
MT851504 hp
Median Four-Wheel Drive Tractor375 hp
STX500 is in the 74th percentile; MT851 is in the 76th · 162 models
Engine Displacement
▲ MT851 higher · +22 ci (+2%)STX500912 ci
MT851934 ci
Median Four-Wheel Drive Tractor826 ci
STX500 is in the 78th percentile; MT851 is in the 85th · 152 models
Cylinders
= Effectively tiedSTX5006
MT8516
Median Four-Wheel Drive Tractor6
STX500 is in the 50th percentile; MT851 is in the 50th · 159 models
Operating Weight
▲ STX500 higher · +12,000 lb (+29%)STX50054,000 lb
MT85142,000 lb
Median Four-Wheel Drive Tractor37,428 lb
STX500 is in the 93rd percentile; MT851 is in the 63rd · 132 models
STX500 (A)MT851 (B)Median Four-Wheel Drive Tractor
Full comparison
Every spec, side by side
General Information
| Spec | CaseIH STX500 | Challenger MT851 | Difference |
|---|---|---|---|
| Manufacturer | CaseIH | Challenger | — |
| Model | STX500 | MT851 | — |
| Category | Four-Wheel Drive | Agricultural | — |
Engine
| Spec | CaseIH STX500 | Challenger MT851 | Difference |
|---|---|---|---|
| Manufacturer | Cummins | MAN | — |
| Model | QSX 15 | D3876 | — |
| Power Output | 500hp | 504hp | ▲ MT851+4 hp · <1% |
| Rated RPM | Not recorded | 1,730RPM | — |
| Cylinders | 6 | 6 | Same |
| Displacement | 912ci | 934ci | ▲ MT851+22 ci · +2% |
| Bore | 5.4in | 5.4in | Same |
| Stroke | 6.7in | 6.7in | Same |
Transmission
| Spec | CaseIH STX500 | Challenger MT851 | Difference |
|---|---|---|---|
| Type | Full power shift | Continuously-Variable Transmission | — |
Dimensions & Weight
| Spec | CaseIH STX500 | Challenger MT851 | Difference |
|---|---|---|---|
| Length | Not recorded | 266in | — |
| Width | Not recorded | 116in | — |
| Height | Not recorded | 148in | — |
| Operating Weight | 54,000lb | 42,000lb | ▲ STX500+12,000 lb · +29% |
Hydraulics
| Spec | CaseIH STX500 | Challenger MT851 | Difference |
|---|---|---|---|
| System Type | Pressure flow compensated (PFC) | Closed Center Pressure-Flow Compensated | — |
Power Take-off (PTO)
| Spec | CaseIH STX500 | Challenger MT851 | Difference |
|---|---|---|---|
| Type | 1000 (1.75) | Not recorded | — |
Hitch & Towing
| Spec | CaseIH STX500 | Challenger MT851 | Difference |
|---|---|---|---|
| Hitch Category | IVN/III | Not recorded | — |
| Hitch Position | Rear | Not recorded | — |
Chassis & Drive
| Spec | CaseIH STX500 | Challenger MT851 | Difference |
|---|---|---|---|
| Chassis Type | Not recorded | Crawler | — |
Electrical
| Spec | CaseIH STX500 | Challenger MT851 | Difference |
|---|---|---|---|
| Battery Voltage | 12V | Not recorded | — |
| Starter Type | Electric | Electric | Same |
Category context
Both models against the field
Engine Power
median 375 hpA · 74th percentile (500 hp)B · 76th percentile (504 hp)
Engine Displacement
median 826 ciA · 78th percentile (912 ci)B · 85th percentile (934 ci)
Cylinders
median 6A · 50th percentile (6)B · 50th percentile (6)
Operating Weight
median 37,428 lbA · 93rd percentile (54,000 lb)B · 63rd percentile (42,000 lb)
A · STX500B · MT851Median Four-Wheel Drive Tractor