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Hart-ParrModel A
Hart-Parr 18-28
Standard Tread
- power
- Not recorded
- displacement
- 281 ci
- Cylinders
- 4
- Forward gears
- 3
Head to head · Standard Tread
Hart-Parr 18-28 vs Hart-Parr 40
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Hart-ParrModel B
Hart-Parr 40
Utility
- power
- 40.7 hp
- displacement
- 618 ci
- Cylinders
- 4
- Forward gears
- 2
Hart-ParrHart-Parr 18-28
vs
Hart-ParrHart-Parr 40
How they compare
Headline specs vs. the whole Standard Tread
Engine Displacement
▲ 40 higher · +337 ci (+120%)18-28281 ci
40618 ci
Median Standard Tread Tractor382 ci
18-28 is in the 27th percentile; 40 is in the 77th · 353 models
Cylinders
= Effectively tied18-284
404
Median Standard Tread Tractor4
18-28 is in the 50th percentile; 40 is in the 50th · 367 models
Forward Gears
▲ 18-28 higher · +1 (+50%)18-283
402
Median Standard Tread Tractor4
18-28 is in the 39th percentile; 40 is in the 19th · 341 models
Operating Weight
▲ 40 higher · +2,135 lb (+51%)18-284,165 lb
406,300 lb
Median Standard Tread Tractor6,834 lb
18-28 is in the 16th percentile; 40 is in the 40th · 297 models
18-28 (A)40 (B)Median Standard Tread Tractor
Full comparison
Every spec, side by side
General Information
| Spec | Hart-Parr 18-28 | Hart-Parr 40 | Difference |
|---|---|---|---|
| Manufacturer | Hart-Parr | Hart-Parr | Same |
| Model | 18-28 | 40 | — |
| Category | Standard Tread | Utility, Standard Tread | — |
Engine
| Spec | Hart-Parr 18-28 | Hart-Parr 40 | Difference |
|---|---|---|---|
| Manufacturer | Oliver | Hart-Parr | — |
| Power Output | Not recorded | 40.7hp | — |
| Rated RPM | Not recorded | 802RPM | — |
| Cylinders | 4 | 4 | Same |
| Displacement | 281ci | 618ci | ▲ 40+337 ci · +120% |
| Bore | 4.1in | 5.5in | ▲ 40+1.4 in · +34% |
| Stroke | 5.3in | 6.5in | ▲ 40+1.2 in · +23% |
Transmission
| Spec | Hart-Parr 18-28 | Hart-Parr 40 | Difference |
|---|---|---|---|
| Type | Gear | Gear | Same |
Dimensions & Weight
| Spec | Hart-Parr 18-28 | Hart-Parr 40 | Difference |
|---|---|---|---|
| Length | 112in | 140in | ▲ 40+28 in · +25% |
| Width | 61in | 96in | ▲ 40+35 in · +57% |
| Height | 53.5in | 67in | ▲ 40+13.5 in · +25% |
| Operating Weight | 4,165lb | 6,300lb | ▲ 40+2,135 lb · +51% |
Hydraulics
| Spec | Hart-Parr 18-28 | Hart-Parr 40 | Difference |
|---|---|---|---|
| Steering Type | Not recorded | Manual | — |
Chassis & Drive
| Spec | Hart-Parr 18-28 | Hart-Parr 40 | Difference |
|---|---|---|---|
| Chassis Type | Not recorded | 4x2 | — |
| Drive Type | Not recorded | 2WD | — |
| Steering Type | Not recorded | Manual | — |
Capacities
| Spec | Hart-Parr 18-28 | Hart-Parr 40 | Difference |
|---|---|---|---|
| Coolant | 8gal | 28.8gal | ▲ 40+20.8 gal · +260% |
Category context
Both models against the field
Engine Displacement
median 382 ciA · 27th percentile (281 ci)B · 77th percentile (618 ci)
Cylinders
median 4A · 50th percentile (4)B · 50th percentile (4)
Forward Gears
median 4A · 39th percentile (3)B · 19th percentile (2)
Operating Weight
median 6,834 lbA · 16th percentile (4,165 lb)B · 40th percentile (6,300 lb)
Length
median 137 inA · 10th percentile (112 in)B · 55th percentile (140 in)
A · 18-28B · 40Median Standard Tread Tractor