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ChallengerModel A
Challenger MT645B
Agricultural
- power
- 235 hp
- displacement
- 449 ci
- Cylinders
- 6
- Forward gears
- Not recorded
Head to head · Agricultural
Challenger MT645B vs Challenger MT655C SCR
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ChallengerModel B
Challenger MT655C SCR
Agricultural
- power
- 234 hp
- displacement
- 513 ci
- Cylinders
- 6
- Forward gears
- Not recorded
ChallengerChallenger MT645B
vs
ChallengerChallenger MT655C SCR
How they compare
Headline specs vs. the whole Agricultural
Engine Power
▲ MT645B higher · +1 hp (<1%)MT645B235 hp
MT655C SCR234 hp
Median Agricultural Tractor110 hp
MT645B is in the 86th percentile; MT655C SCR is in the 86th · 1,028 models
Engine Displacement
▲ MT655C SCR higher · +64 ci (+14%)MT645B449 ci
MT655C SCR513 ci
Median Agricultural Tractor336 ci
MT645B is in the 79th percentile; MT655C SCR is in the 88th · 1,083 models
Cylinders
= Effectively tiedMT645B6
MT655C SCR6
Median Agricultural Tractor5.5
MT645B is in the 74th percentile; MT655C SCR is in the 74th · 1,130 models
Operating Weight
▲ MT655C SCR higher · +6,200 lb (+32%)MT645B19,595 lb
MT655C SCR25,795 lb
Median Agricultural Tractor10,914 lb
MT645B is in the 82nd percentile; MT655C SCR is in the 93rd · 971 models
MT645B (A)MT655C SCR (B)Median Agricultural Tractor
Full comparison
Every spec, side by side
General Information
| Spec | Challenger MT645B | Challenger MT655C SCR | Difference |
|---|---|---|---|
| Manufacturer | Challenger | Challenger | Same |
| Model | MT645B | MT655C SCR | — |
| Category | Agricultural | Agricultural | Same |
Engine
| Spec | Challenger MT645B | Challenger MT655C SCR | Difference |
|---|---|---|---|
| Manufacturer | Sisu | Sisu Diesel | — |
| Model | 74ETA | 84CTA | — |
| Power Output | 235hp | 234hp | ▲ MT645B+1 hp · <1% |
| Rated RPM | 2,200RPM | 2,200RPM | Same |
| Cylinders | 6 | 6 | Same |
| Displacement | 449ci | 513ci | ▲ MT655C SCR+64 ci · +14% |
| Bore | 4.3in | 4.4in | ▲ MT655C SCR+0.1 in · +2% |
| Stroke | 5.3in | 5.7in | ▲ MT655C SCR+0.4 in · +8% |
Transmission
| Spec | Challenger MT645B | Challenger MT655C SCR | Difference |
|---|---|---|---|
| Type | continuously variable transmission (CVT) | continuously variable transmission (CVT) | Same |
Dimensions & Weight
| Spec | Challenger MT645B | Challenger MT655C SCR | Difference |
|---|---|---|---|
| Length | 206in | 223in | ▲ MT655C SCR+17 in · +8% |
| Width | 118in | Not recorded | — |
| Height | 124in | 133in | ▲ MT655C SCR+9 in · +7% |
| Operating Weight | 19,595lb | 25,795lb | ▲ MT655C SCR+6,200 lb · +32% |
Hydraulics
| Spec | Challenger MT645B | Challenger MT655C SCR | Difference |
|---|---|---|---|
| System Type | Pressure Flow Compensated (PFC) | Closed Center | — |
Hitch & Towing
| Spec | Challenger MT645B | Challenger MT655C SCR | Difference |
|---|---|---|---|
| Hitch Type | Three-Point Hitch | Not recorded | — |
| Hitch Category | III | Not recorded | — |
| Hitch Position | Rear | Not recorded | — |
Electrical
| Spec | Challenger MT645B | Challenger MT655C SCR | Difference |
|---|---|---|---|
| Starter Type | Electric | Electric Starter | — |
Capacities
| Spec | Challenger MT645B | Challenger MT655C SCR | Difference |
|---|---|---|---|
| Coolant | 8.9gal | Not recorded | — |
Category context
Both models against the field
Engine Power
median 110 hpA · 86th percentile (235 hp)B · 86th percentile (234 hp)
Engine Displacement
median 336 ciA · 79th percentile (449 ci)B · 88th percentile (513 ci)
Cylinders
median 5.5A · 74th percentile (6)B · 74th percentile (6)
Operating Weight
median 10,914 lbA · 82nd percentile (19,595 lb)B · 93rd percentile (25,795 lb)
Length
median 173 inA · 82nd percentile (206 in)B · 91st percentile (223 in)
A · MT645BB · MT655C SCRMedian Agricultural Tractor