Overview
The Hart-Parr 18-36 is a standard-tread farm tractor manufactured in Charles City, Iowa, between 1926 and 1930. It is powered by an 8.2L two-cylinder gasoline engine and was produced in variations including 2-speed and 3-speed gear transmissions. The unit weighs 6100 lbs and features a manual steering system with steel wheels.
Ideal Applications
Tested Performance Ratings:
According to Nebraska Tractor Test 128, the model achieved a maximum belt power of 42.85 hp and a maximum drawbar pull of 4,075 lbs.
Engine and Mechanical Specs:
The tractor is equipped with a 501 ci liquid-cooled engine rated at 800 RPM, utilizing a Stromberg MB3 carburetor and a dry centrifugal air cleaner.
Regional Configuration:
Exported New Zealand and Australia Special editions were configured for dry conditions with a modified air cleaner and an exhaust system vented straight up from the engine.
Production
| Description | Standard-tread tractor / Built in Charles City, Iowa, USA / The Hart-Parr 18-36 was exported as a New Zealand and Australia Special outfitted for dry conditions. A different air cleaner was used and the exhaust was vented staight up off the engine. |
|---|---|
| Manufacturer | Hart-Parr |
| Original price | $1350 (1930) |
Engine
| Engine type | Hart-Parr 8.2L 2-cyl gasoline |
|---|---|
| Air cleaner | dry centrifugal |
| Bore/Stroke | 6.75x7.00 inches (171 x 178 mm) |
| Description | Hart-Parr / gasoline / 2-cylinder / liquid-cooled |
| Displacement | 501 ci (8.2 L) |
| Fuel system | Stromberg MB3 carburetor |
| Rated RPM | 800 |
| Belt (claimed) | 36 hp (26.8 kW) |
| Belt (tested) | 42.85 hp (32.0 kW) |
| Drawbar (claimed) | 18 hp (13.4 kW) |
| Drawbar (tested) | 32.2 hp (24.0 kW) |
Transmission
| Clutch | dry disc |
|---|---|
| Gears | 2 forward and 1 reverse / 3 forward and 1 reverse |
| Type | gear |
| Transmission type | 2-speed gear / 3-speed |
| Transmission type | 2-speed gear / 3-speed |
Mechanical
| Cab | Open operator station. |
|---|---|
| Drive type | Two-wheel drive |
| Steering | manual |
Dimensions & Tires
| Weight | 6100 lbs (2766 kg) |
|---|---|
| Front tire | 28x5 |
| Rear tire | 51x12 |
| Weight | 6100 lbs (2766 kg) |
| Ag front | 28x5 (steel) |
| Ag rear | 51x12 (steel) |
18-36 Serial Numbers
| 1926 | 26001 (18-36 G) |
|---|---|
| 1927 | 26362 (18-36 G) / 28851 (18-36 H) |
| 1928 | 29636 (18-36 H) / 33753 (18-36 I) |
| 1929 | 34567 (18-36 I) |
| 1930 | 89160 (18-36 I) |
| Description | FAQ: How to read a serial number table. |
Nebraska Tractor Test 128
| Belt fuel use (max) | 5.0 gal/hour (18.9 l/hour) |
|---|---|
| Belt power (max) | 42.85 hp (32.0 kW) |
| Description | Distillate 2-speed 2WDOctober 18 - 25, 1926Link: Nebraska Tractor Test 128 file / Drawbar performance |
| Max power | 32.2 hp (24.0 kW) |
| Max pull | 4,075 lbs (1848 kg) |