Utility tractorsSpec sheet
Advance-Rumely OilPull K 12/20
The Advance-Rumely OilPull K 12/20 is a utility tractor with a standard tread design. It's a 2WD model with a 4x2 chassis, making it suitable for various farming tasks. This tractor features a gear transmission with 2 forward gears and 1 reverse gear, offering basic speed options for different jobs. Under the hood, the OilPull K 12/20 boasts a Rumley engine with some impressive specs. It's a liquid-cooled, 2-cylinder engine with a horizontal opposed layout, running on kerosene fuel. The engine has a very high displacement of 452.4 ci, with a 6-inch bore and 8-inch stroke. It operates at a low 560 rpm but delivers a solid 40 hp of power. The tractor's size is compact, measuring 132 inches long, 64 inches wide, and 75 inches tall. It weighs 6,430 lb, which is above average for its class. One unique feature is its all-steel wheels, with large 64-inch diameter rear tires that are 20 inches wide, providing good traction and stability.
ManufacturerAdvance-RumelyPower40 hp(29.8 kW)Class40–60 HP tractors →Engine2-cylinderTransmissionGear
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Key specifications
- Category
- Utility
- Engine power
- 40hp
- Operating weight
- 6,430 lb
- Transmission
- Gear
Category comparison
OilPull K 12/20 compared with its category
vs. Utility medianDistribution
Engine Power (hp)
All recorded Utility tractors
40 hp · 33rd
This model
9
Median 55 hp
177
This modelUtility tractorsMediann = 5,383
The OilPull K 12/20 ranks at the 33rd percentile for engine power among recorded utility tractors.
Overview
About the Advance-Rumely OilPull K 12/20
The Advance-Rumely OilPull K 12/20 is a utility tractor with a standard tread design. It's a 2WD model with a 4x2 chassis, making it suitable for various farming tasks. This tractor features a gear transmission with 2 forward gears and 1 reverse gear, offering basic speed options for different jobs. Under the hood, the OilPull K 12/20 boasts a Rumley engine with some impressive specs. It's a liquid-cooled, 2-cylinder engine with a horizontal opposed layout, running on kerosene fuel. The engine has a very high displacement of 452.4 ci, with a 6-inch bore and 8-inch stroke. It operates at a low 560 rpm but delivers a solid 40 hp of power. The tractor's size is compact, measuring 132 inches long, 64 inches wide, and 75 inches tall. It weighs 6,430 lb, which is above average for its class. One unique feature is its all-steel wheels, with large 64-inch diameter rear tires that are 20 inches wide, providing good traction and stability.
Full specifications
Recorded specifications
General
| Manufacturer | Advance-Rumely |
|---|---|
| Model | OilPull K 12/20 |
| Category | Utility tractor |
| Type | 4x2 |
| Operating weight | 6,430lb(2,917 kg) |
Engine
| Make | Rumley |
|---|---|
| Power | 40hp(29.83 kW) |
| Cylinders | 2 |
| Displacement | 452.4ci(7.41 L) |
| Bore | 6in(152.4 mm) |
| Stroke | 8in(203.2 mm) |
Transmission
| Type | Gear |
|---|---|
| Forward gears | 2 |
| Reverse gears | 1 |
Chassis & drive
| Chassis | 4x2 |
|---|---|
| Drive | 2WD |
Dimensions
| Length | 132in(3,353 mm) |
|---|---|
| Width | 64in(1,626 mm) |
| Height | 75in(1,905 mm) |
| Operating weight | 6,430lb(2,917 kg) |
Closest alternatives
OilPull K 12/20 compared with the nearest models by horsepower
By engine horsepower, the nearest utility models to the OilPull K 12/20 are the Massey Ferguson 1740M and the New Holland Boomer 40 (2017-). The Massey Ferguson 1740M matches it on rated power and weighs 3,060 lb less, carrying 84 lb per horsepower against 161 lb. The New Holland Boomer 40 (2017-) matches it on rated power and weighs 3,630 lb less, so it is lighter for its power, which favors PTO and transport work over heavy draft. Of the 3 models, the OilPull K 12/20 has the highest weight per horsepower at 161 lb per hp.
| Spec | Advance-Rumely OilPull K 12/20 | Massey Ferguson 1740M | New Holland Boomer 40 (2017-) |
|---|---|---|---|
| Engine power | 40 hp29.8 kW | 40 hp29.8 kW | 40 hp29.8 kW |
| Operating weight | 6,430 lb2,917 kg | 3,373 lb1,530 kg | 2,800 lb1,270 kg |
| Weight per hp | 161 lb/hp98 kg/kW | 84 lb/hp51 kg/kW | 70 lb/hp43 kg/kW |
| Displacement | 452.4 ci7.41 L | 101.4 ci1.66 L | 114.7 ci1.88 L |
| Cylinders | 2 | 3 | 3 |
| Transmission | Gear | Shuttle | Synchronized shuttle |
| Drive | 2WD | MFWD | 4WD |
| Years built | - | 2018+ | 2017+ |
Calculators
Calculators for the OilPull K 12/20
PTO power
About 33 to 36 PTO hp
Estimated from the 40 hp engine rating. The calculator also estimates drawbar power by surface.
Implement sizing
Implements a 40 hp tractor can run
Maximum size is about a 5 ft rotary cutter or a 4 ft tiller. The calculator also sizes discs, plows and balers.
Ballast
187 lb per PTO hp as listed
The calculator gives the target weight and front/rear split for each job.
Units
40 hp is 29.8 kW
The converter gives kW and metric PS values, as used on European spec sheets.
Category medians
OilPull K 12/20 vs. Utility median
Advance-Rumely OilPull K 12/20 compared with other Utility tractors
| Spec | This model | Utility median | Difference | Percentile |
|---|---|---|---|---|
| Engine Power | 40 hp | 55 hp | -27% | 33rd |
| Engine Displacement | 452 ci | 183 ci | +147% | 93rd |
| Cylinders | 2 | 4 | -50% | 3rd |
| Forward Gears | 2 | 12 | -83% | 1st |
| Operating Weight | 6,430 lb | 5,303 lb | +21% | 61st |
| Length | 132 in | 137 in | -3% | 43rd |
| Width | 64 in | 66 in | -3% | 45th |
| Height | 75 in | 94.1 in | -20% | 20th |
Medians and percentiles are calculated from the utility tractors in the database that have a recorded value for each specification (sample size 3,933–5,720 models).
Same manufacturer
Other Advance-Rumely models
Other manufacturers
Models with similar horsepower
FAQ
Frequently asked questions
What is the engine power output of the Advance-Rumely OilPull K 12/20?
Rated engine output for the Advance-Rumely OilPull K 12/20 is 40 hp, delivered by a 2-cylinder engine. The engine displaces 452.4 ci.
What is the operating weight of the Advance-Rumely OilPull K 12/20?
The Advance-Rumely OilPull K 12/20 has an operating weight of about 6,430 lb.
Which transmission does the Advance-Rumely OilPull K 12/20 use?
The Advance-Rumely OilPull K 12/20 is equipped with a Gear transmission with 2 forward gears.
How do I maintain a Advance-Rumely OilPull K 12/20?
Routine service for the Advance-Rumely OilPull K 12/20 covers engine oil and filter changes, hydraulic and coolant level checks, air filter cleaning, and scheduled inspections. Refer to the manufacturer's maintenance schedule for exact intervals.