UtilityPerformance profile
Hart-Parr 40
The Hart-Parr 40 is a utility tractor with a standard tread design. It's a 2-wheel drive machine with manual steering and a gear transmission. This tractor has 2 forward gears and 1 reverse gear, making it simple to operate. The Hart-Parr 40 is powered by a 4-cylinder, liquid-cooled engine that runs on kerosene. The engine is very large for its class, with a displacement of 617.7 cubic inches. This tractor is built tough, weighing 6,300 pounds and measuring 140 inches long, 96 inches wide, and 67 inches tall. It has steel wheels instead of rubber tires, which was common for tractors of its time. The Hart-Parr 40 has above-average power for its size, producing 40.66 horsepower at a low engine speed of 802 rpm. It can travel at speeds up to 3.12 miles per hour in its highest gear. The tractor's large 28.75-gallon coolant capacity helps keep the engine running smoothly during long workdays.
ManufacturerHart-ParrPower40.66 hpEngine4-cylTransGear
Image not recorded
Quick specs
- Category
- Utility
- Engine Power Output
- 41hp
- Operating Weight
- 6,300 lb
- Transmission
- Gear
At a glance
How the 40 compares
vs. Utility medianDistribution
Engine Power (hp)
Across all Utility tractors
40.66 hp · 35th
This model
9
Median 55 hp
177
This modelUtility tractorsMediann = 5,383
The 40 ranks at the 35th percentile for engine power among recorded utility tractors.
Overview
About the Hart-Parr 40
The Hart-Parr 40 is a utility tractor with a standard tread design. It's a 2-wheel drive machine with manual steering and a gear transmission. This tractor has 2 forward gears and 1 reverse gear, making it simple to operate. The Hart-Parr 40 is powered by a 4-cylinder, liquid-cooled engine that runs on kerosene. The engine is very large for its class, with a displacement of 617.7 cubic inches. This tractor is built tough, weighing 6,300 pounds and measuring 140 inches long, 96 inches wide, and 67 inches tall. It has steel wheels instead of rubber tires, which was common for tractors of its time. The Hart-Parr 40 has above-average power for its size, producing 40.66 horsepower at a low engine speed of 802 rpm. It can travel at speeds up to 3.12 miles per hour in its highest gear. The tractor's large 28.75-gallon coolant capacity helps keep the engine running smoothly during long workdays.
Full specifications
Every recorded spec
General
| Manufacturer | Hart-Parr |
|---|---|
| Model | 40 |
| Category | Utility tractor |
| Type | 4x2 |
| Operating weight | 6,300lb |
Engine
| Make | Hart-Parr |
|---|---|
| Power | 40.66hp |
| Cylinders | 4 |
| Displacement | 617.7ci |
| Bore | 5.53in |
| Stroke | 6.5in |
Transmission
| Type | Gear |
|---|---|
| Forward gears | 2 |
| Reverse gears | 1 |
Chassis & drive
| Chassis | 4x2 |
|---|---|
| Drive | 2WD |
| Steering | Manual |
Dimensions
| Length | 140in |
|---|---|
| Width | 96in |
| Height | 67in |
| Operating weight | 6,300lb |
Capacities
| Cooling system | 28.75gal |
|---|
Head to head
40 vs. Utility median
How the Hart-Parr 40 compares to other Utility tractors
| Spec | This model | Utility median | Difference | Percentile |
|---|---|---|---|---|
| Engine Power | 40.7 hp | 55 hp | -26% | 35th |
| Engine Displacement | 618 ci | 183 ci | +237% | 95th |
| Cylinders | 4 | 4 | at median | 50th |
| Forward Gears | 2 | 12 | -83% | 1st |
| Operating Weight | 6,300 lb | 5,303 lb | +19% | 60th |
| Length | 140 in | 137 in | +2% | 55th |
| Width | 96 in | 66 in | +45% | 95th |
| Height | 67 in | 94.1 in | -29% | 14th |
Medians and percentiles are computed from the utility tractors in our database with a recorded value for each spec (sample sizes 3,933–5,720 models).
Compare to tractors with similar specs
Commonly compared Hart-Parr tractors
| Tractor | Engine Power | Operating Weight | Years | Compare |
|---|---|---|---|---|
| Hart-Parr 30 | 30 hp | 5,450 lb | — | Compare → |
| Hart-Parr 12-24 | — | 4,440 lb | — | Compare → |
| Hart-Parr 16-30 | — | 8,000 lb | — | Compare → |
| Hart-Parr 17-30 | — | — | — | Compare → |
| Hart-Parr 18-28 | — | 4,165 lb | — | Compare → |
Commonly compared tractors with similar horsepower from other brands
| Tractor | Engine Power | Operating Weight | Years | Compare |
|---|---|---|---|---|
| Allis Chalmers ED40 | 41 hp | 3,527 lb | — | Compare → |
| AGCO ST40 | 40.1 hp | 3,323 lb | — | Compare → |
| AGCO ST41A | 40.1 hp | 3,000 lb | — | Compare → |
| Advance-Rumely OilPull K 12/20 | 40 hp | 6,430 lb | — | Compare → |
| Allis Chalmers 160 | 40 hp | 4,674 lb | 1970–1975 | Compare → |
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FAQ
Common questions
How much horsepower does the Hart-Parr 40 have?
The Hart-Parr 40 produces 40.66 hp from its 4-cylinder engine. Engine displacement is 617.7 ci.
How much does the Hart-Parr 40 weigh?
The Hart-Parr 40 weighs about 6,300 lb in operating condition.
What transmission is in the Hart-Parr 40?
Transmission on the Hart-Parr 40 is Gear, with 2 forward speeds.
What maintenance does the Hart-Parr 40 require?
Like any tractor, the Hart-Parr 40 needs periodic engine oil and filter changes, hydraulic fluid checks, and regular greasing and inspection. The owner's manual lists the manufacturer's recommended service intervals.