ChallengerModel A
Challenger MT645
Row Crop
- power
- Not recorded
- displacement
- 449 ci
- Cylinders
- 6
- Forward gears
- 18
Head to head · Row Crop
Challenger MT645 vs Deutz-Allis 8070
Image not recorded
Deutz-AllisModel B
Deutz-Allis 8070
Row Crop
- power
- Not recorded
- displacement
- 426 ci
- Cylinders
- 6
- Forward gears
- 20
ChallengerChallenger MT645
vs
Deutz-AllisDeutz-Allis 8070
How they compare
Headline specs vs. the whole Row Crop
Engine Displacement
▲ MT645 higher · +23 ci (+5%)MT645449 ci
8070426 ci
Median Row Crop Tractor391 ci
MT645 is in the 77th percentile; 8070 is in the 72nd · 1,409 models
Cylinders
= Effectively tiedMT6456
80706
Median Row Crop Tractor6
MT645 is in the 50th percentile; 8070 is in the 50th · 1,417 models
Forward Gears
▲ 8070 higher · +2 (+11%)MT64518
807020
Median Row Crop Tractor16
MT645 is in the 61st percentile; 8070 is in the 70th · 1,200 models
Operating Weight
▲ MT645 higher · +2,170 lb (+13%)MT64519,020 lb
807016,850 lb
Median Row Crop Tractor12,307 lb
MT645 is in the 81st percentile; 8070 is in the 73rd · 1,350 models
MT645 (A)8070 (B)Median Row Crop Tractor
Full comparison
Every spec, side by side
General Information
| Spec | Challenger MT645 | Deutz-Allis 8070 | Difference |
|---|---|---|---|
| Manufacturer | Challenger | Deutz-Allis | — |
| Model | MT645 | 8070 | — |
| Category | Row Crop | Row Crop | Same |
Engine
| Spec | Challenger MT645 | Deutz-Allis 8070 | Difference |
|---|---|---|---|
| Manufacturer | Sisu/Valmet Diesel | Allis Chalmers | — |
| Model | Not recorded | 670I | — |
| Rated RPM | 2,200RPM | 2,400RPM | ▲ 8070+200 RPM · +9% |
| Cylinders | 6 | 6 | Same |
| Displacement | 449ci | 426ci | ▲ MT645+23 ci · +5% |
| Bore | 4.3in | 4.3in | Same |
| Stroke | 5.3in | 5in | ▲ MT645+0.3 in · +6% |
Transmission
| Spec | Challenger MT645 | Deutz-Allis 8070 | Difference |
|---|---|---|---|
| Type | Selective gear fixed ratio with full range operator controlled powershift | 20-speed partial power shift | — |
Dimensions & Weight
| Spec | Challenger MT645 | Deutz-Allis 8070 | Difference |
|---|---|---|---|
| Length | 203in | 187in | ▲ MT645+16 in · +9% |
| Width | 98.2in | 95.5in | ▲ MT645+2.7 in · +3% |
| Height | 121in | 116in | ▲ MT645+5 in · +4% |
| Operating Weight | 19,020lb | 16,850lb | ▲ MT645+2,170 lb · +13% |
Hydraulics
| Spec | Challenger MT645 | Deutz-Allis 8070 | Difference |
|---|---|---|---|
| System Type | Closed Center Pressure Flow Compensated (PFC) | Closed-center load-sensitive | — |
| Steering Type | Power Steering (Hydrostatic) | Hydrostatic power | — |
Hitch & Towing
| Spec | Challenger MT645 | Deutz-Allis 8070 | Difference |
|---|---|---|---|
| Hitch Type | Not recorded | Category III/II | — |
| Hitch Category | III | Not recorded | — |
| Hitch Position | Rear | Rear | Same |
Chassis & Drive
| Spec | Challenger MT645 | Deutz-Allis 8070 | Difference |
|---|---|---|---|
| Chassis Type | 4x4 MFWD 4WD | 4x2 2WD | — |
| Drive Type | Not recorded | 2WD | — |
| Steering Type | Power Steering (Hydrostatic) | Hydrostatic power | — |
Electrical
| Spec | Challenger MT645 | Deutz-Allis 8070 | Difference |
|---|---|---|---|
| Starter Type | Electric, 12 Volts | Electric | — |
Capacities
| Spec | Challenger MT645 | Deutz-Allis 8070 | Difference |
|---|---|---|---|
| Coolant | Not recorded | 9gal | — |
Operator Station
| Spec | Challenger MT645 | Deutz-Allis 8070 | Difference |
|---|---|---|---|
| Type | Cab | Cab | Same |
Category context
Both models against the field
Engine Displacement
median 391 ciA · 77th percentile (449 ci)B · 72nd percentile (426 ci)
Cylinders
median 6A · 50th percentile (6)B · 50th percentile (6)
Forward Gears
median 16A · 61st percentile (18)B · 70th percentile (20)
Operating Weight
median 12,307 lbA · 81st percentile (19,020 lb)B · 73rd percentile (16,850 lb)
Length
median 180 inA · 78th percentile (203 in)B · 58th percentile (187 in)
A · MT645B · 8070Median Row Crop Tractor