Brand siblingRow CropPerformance profile
Allis Chalmers 7040
The Allis Chalmers 7040 is a powerful row crop tractor made from 1975 to 1977. It has a strong 6-cylinder diesel engine that makes 151 horsepower. This engine is turbocharged and has above-average displacement for its class. The tractor runs at a very high 2300 rpm, which means it can work hard all day long. This tractor is built for serious farm work. It has a partial power shift transmission with 20 forward gears and 4 reverse gears, giving farmers lots of options for different tasks. The 7040 uses a three-point hitch at the back, which can handle big implements. It also has a rear PTO that spins at 540 rpm, perfect for running various farm tools. The tractor's closed center hydraulic system helps it lift heavy loads easily. Farmers will appreciate the comfortable Acousta-Cab that keeps noise down while working. The Allis Chalmers 7040 is a big tractor, weighing 11,700 pounds. It's 173.6 inches long, 95.5 inches wide, and 116 inches tall. It has large rear tires (18.4-38) for good traction in the fields. The tractor comes with helpful features like differential lock and a big 51-gallon fuel tank. With its mix of power, comfort, and useful features, the 7040 was a solid choice for farmers in the mid-1970s.
ManufacturerAllis ChalmersPower151 hpEngine6-cylTransPartial Power Shift
Quick specs
- Category
- Row Crop
- Engine Power Output
- 151hp
- Operating Weight
- 11,700 lb
- Transmission
- Partial Power Shift
At a glance
How the 7040 compares
vs. Row Crop medianDistribution
Engine Power (hp)
Across all Row Crop tractors
151 hp · 58th
This model
12
Median 138 hp
283
This modelRow Crop tractorsMediann = 1,206
The 7040 ranks at the 58th percentile for engine power among recorded row crop tractors.
Overview
About the Allis Chalmers 7040
The Allis Chalmers 7040 is a powerful row crop tractor made from 1975 to 1977. It has a strong 6-cylinder diesel engine that makes 151 horsepower. This engine is turbocharged and has above-average displacement for its class. The tractor runs at a very high 2300 rpm, which means it can work hard all day long. This tractor is built for serious farm work. It has a partial power shift transmission with 20 forward gears and 4 reverse gears, giving farmers lots of options for different tasks. The 7040 uses a three-point hitch at the back, which can handle big implements. It also has a rear PTO that spins at 540 rpm, perfect for running various farm tools. The tractor's closed center hydraulic system helps it lift heavy loads easily. Farmers will appreciate the comfortable Acousta-Cab that keeps noise down while working. The Allis Chalmers 7040 is a big tractor, weighing 11,700 pounds. It's 173.6 inches long, 95.5 inches wide, and 116 inches tall. It has large rear tires (18.4-38) for good traction in the fields. The tractor comes with helpful features like differential lock and a big 51-gallon fuel tank. With its mix of power, comfort, and useful features, the 7040 was a solid choice for farmers in the mid-1970s.
Full specifications
Every recorded spec
General
| Manufacturer | Allis Chalmers |
|---|---|
| Model | 7040 |
| Category | Row Crop tractor |
| Type | 4x2 2WD |
| Years built | 1975–1977 |
| Operating weight | 11,700lb |
Engine
| Make | Allis Chalmers |
|---|---|
| Model | 3500 Mark II |
| Power | 151hp |
| Cylinders | 6 |
| Displacement | 426ci |
| Bore | 4.25in |
| Stroke | 5in |
Transmission
| Type | Partial Power Shift |
|---|---|
| Forward gears | 20 |
| Reverse gears | 4 |
Chassis & drive
| Chassis | 4x2 2WD |
|---|---|
| Drive | 2WD |
| Steering | Hydrostatic Power |
| Brakes | Differential Hydraulic Wet Discs |
| Cab | Acousta-Cab |
Hydraulics
| Type | Closed Center |
|---|
Power take-off
| Rear PTO | Independent |
|---|---|
| PTO speed | 540rpm |
Dimensions
| Length | 173.6in |
|---|---|
| Width | 95.5in |
| Height | 116in |
| Operating weight | 11,700lb |
Tires
| Front | 11.00-16 |
|---|---|
| Rear | 18.4-38 |
Capacities
| Cooling system | 7.75gal |
|---|
Head to head
7040 vs. Row Crop median
How the Allis Chalmers 7040 compares to other Row Crop tractors
| Spec | This model | Row Crop median | Difference | Percentile |
|---|---|---|---|---|
| Engine Power | 151 hp | 138 hp | +9% | 58th |
| Engine Displacement | 426 ci | 391 ci | +9% | 72nd |
| Cylinders | 6 | 6 | at median | 50th |
| Forward Gears | 20 | 16 | +25% | 70th |
| Operating Weight | 11,700 lb | 12,307 lb | -5% | 45th |
| Length | 174 in | 180 in | -3% | 41st |
| Width | 95.5 in | 91.2 in | +5% | 63rd |
| Height | 116 in | 114 in | +2% | 59th |
Medians and percentiles are computed from the row crop tractors in our database with a recorded value for each spec (sample sizes 806–1,417 models).
Compare to tractors with similar specs
Commonly compared Allis Chalmers tractors
| Tractor | Engine Power | Operating Weight | Years | Compare |
|---|---|---|---|---|
| Allis Chalmers 220 | 151 hp | 12,160 lb | 1970–1973 | Compare → |
| Allis Chalmers 8030 | 148 hp | 14,200 lb | 1982–1985 | Compare → |
| Allis Chalmers 7050 | 156.49 hp | 19,530 lb | 1973–1974 | Compare → |
| Allis Chalmers 7045 | 136.65 hp | 14,500 lb | 1978–1981 | Compare → |
| Allis Chalmers 210 | 136 hp | 12,425 lb | 1970–1973 | Compare → |
Commonly compared tractors with similar horsepower from other brands
| Tractor | Engine Power | Operating Weight | Years | Compare |
|---|---|---|---|---|
| Agrinar T-150 | 150.4 hp | 7,460 lb | — | Compare → |
| CaseIH 7120 | 150.1 hp | 15,920 lb | 1987–1993 | Compare → |
| AGCO RT120 | 150 hp | 15,055 lb | — | Compare → |
| Belarus MTZ-142 | 150 hp | — | — | Compare → |
| CaseIH CVX 150 | 150 hp | 14,046 lb | — | Compare → |
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Gallery
Allis Chalmers 7040 photos
FAQ
Common questions
When was the Allis Chalmers 7040 in production?
Allis Chalmers 7040 production started in 1975 and ended in 1977.
What type of hydraulic system does the Allis Chalmers 7040 use?
Hydraulics on the Allis Chalmers 7040 are Closed Center.
What size tires does the Allis Chalmers 7040 use?
Factory rubber for the Allis Chalmers 7040 is 11.00-16 front tires and 18.4-38 rear tires.
What hitch category is the Allis Chalmers 7040?
The Allis Chalmers 7040 uses a Category III/II hitch.
How much horsepower does the Allis Chalmers 7040 have?
The Allis Chalmers 7040 produces 151 hp from its 6-cylinder engine. Engine displacement is 426 ci.
How much does the Allis Chalmers 7040 weigh?
The Allis Chalmers 7040 weighs about 11,700 lb in operating condition.
What transmission is in the Allis Chalmers 7040?
Transmission on the Allis Chalmers 7040 is Partial Power Shift, with 20 forward speeds.
What maintenance does the Allis Chalmers 7040 require?
Like any tractor, the Allis Chalmers 7040 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.