Allis Chalmers FD3
The Allis Chalmers FD3 is a compact utility tractor designed for various farm tasks. It has a 2-wheel drive system and a manual transmission with 8 forward gears and 4 reverse gears. This tractor is built to be versatile and easy to use on small to medium-sized farms. Under the hood, the FD3 features a Vendeuvre diesel engine with 2 cylinders. The engine has a displacement of 95.8 cubic inches, which is below average for tractors in its class. It produces 25 horsepower at 2200 RPM, making it suitable for light to moderate work. The tractor's compact size, measuring 112.2 inches long and 51.2 inches high, allows it to maneuver easily in tight spaces. With an operating weight of 3150 pounds, it's on the lighter side compared to other tractors, which can be an advantage when working on softer ground.

Key specifications
- Category
- Utility
- Engine power
- 25hp
- Operating weight
- 3,150 lb
- Transmission
- Manual
Category comparison
FD3 compared with its category
vs. Utility medianDistribution
Engine Power (hp)
All recorded Utility tractors
This model
The FD3 ranks at the 16th percentile for engine power among recorded utility tractors.
Overview
About the Allis Chalmers FD3
The Allis Chalmers FD3 is a compact utility tractor designed for various farm tasks. It has a 2-wheel drive system and a manual transmission with 8 forward gears and 4 reverse gears. This tractor is built to be versatile and easy to use on small to medium-sized farms. Under the hood, the FD3 features a Vendeuvre diesel engine with 2 cylinders. The engine has a displacement of 95.8 cubic inches, which is below average for tractors in its class. It produces 25 horsepower at 2200 RPM, making it suitable for light to moderate work. The tractor's compact size, measuring 112.2 inches long and 51.2 inches high, allows it to maneuver easily in tight spaces. With an operating weight of 3150 pounds, it's on the lighter side compared to other tractors, which can be an advantage when working on softer ground.
Full specifications
Recorded specifications
General
| Manufacturer | Allis Chalmers |
|---|---|
| Model | FD3 |
| Category | Utility tractor |
| Type | 4x2 |
| Operating weight | 3,150lb(1,429 kg) |
Engine
| Make | Vendeuvre |
|---|---|
| Power | 25hp(18.64 kW) |
| Cylinders | 2 |
| Displacement | 95.8ci(1.57 L) |
| Bore | 3.12in(79.25 mm) |
| Stroke | 3.94in(100 mm) |
Transmission
| Type | Manual |
|---|---|
| Forward gears | 8 |
| Reverse gears | 4 |
Chassis & drive
| Chassis | 4x2 |
|---|---|
| Drive | 2WD |
Dimensions
| Length | 112.2in(2,850 mm) |
|---|---|
| Height | 51.2in(1,300 mm) |
| Operating weight | 3,150lb(1,429 kg) |
Closest alternatives
FD3 compared with the nearest models by horsepower
By engine horsepower, the nearest utility models to the FD3 are the Allis Chalmers 5020 and the John Deere 2025R. The Allis Chalmers 5020 matches it on rated power and weighs 1,090 lb less, so it is lighter for its power, which favors PTO and transport work over heavy draft. The John Deere 2025R matches it on rated power and weighs 1,490 lb less, carrying 66 lb per horsepower against 126 lb. Of the 3 models, the FD3 has the highest weight per horsepower at 126 lb per hp.
| Spec | Allis Chalmers FD3 | Allis Chalmers 5020 | John Deere 2025R |
|---|---|---|---|
| Engine power | 25 hp18.6 kW | 25 hp18.6 kW | 25 hp18.6 kW |
| Operating weight | 3,150 lb1,429 kg | 2,060 lb934 kg | 1,660 lb753 kg |
| Weight per hp | 126 lb/hp77 kg/kW | 82 lb/hp50 kg/kW | 66 lb/hp40 kg/kW |
| Displacement | 95.8 ci1.57 L | 77.1 ci1.26 L | 77.3 ci1.27 L |
| Cylinders | 2 | 2 | 3 |
| Transmission | Manual | Sliding gear | Hydrostatic |
| Drive | 2WD | 2WD | MFWD - Mechanical Front Wheel Drive |
| Years built | - | 1977-1985 | 2013-2016 |
Calculators
Calculators for the FD3
PTO power
About 21 to 23 PTO hp
Estimated from the 25 hp engine rating. The calculator also estimates drawbar power by surface.
Implement sizing
Implements a 25 hp tractor can run
The calculator sizes mowers, tillers, discs, plows and balers for this tractor.
Ballast
147 lb per PTO hp as listed
The calculator gives the target weight and front/rear split for each job.
Units
25 hp is 18.6 kW
The converter gives kW and metric PS values, as used on European spec sheets.
Parts and manuals
Parts and manuals for the Allis Chalmers FD3
Each link opens a retailer search keyed to the fields recorded for this model. Confirm fitment against the serial plate before ordering.
Filters
- Oil filter for the VendeuvreAmazon
Fits the Vendeuvre 2-cylinder diesel engine listed for this model. Confirm the part number against the engine serial plate.
- Air filter for the VendeuvreAmazon
Fits the Vendeuvre 2-cylinder diesel engine listed for this model. Confirm the part number against the engine serial plate.
- Fuel filter for the VendeuvreAmazon
Fits the Vendeuvre 2-cylinder diesel engine listed for this model. Confirm the part number against the engine serial plate.
- Hydraulic filter for the VendeuvreAmazon
Fits the Vendeuvre 2-cylinder diesel engine listed for this model. Confirm the part number against the engine serial plate.
Manuals
- Allis Chalmers FD3 service and repair manualseManualOnline
Digital manuals. Check the serial number range on the listing.
- Allis Chalmers FD3 operator's manualAmazon
Printed and reprint manuals. Check the serial number range on the listing.
- Allis Chalmers FD3 service manualAmazon
Shop and repair manuals for this model.
Links in this section go to retailers. A purchase through them earns this site a commission at no extra cost to the buyer. As an Amazon Associate, Heavy Equipment Specs earns from qualifying purchases. Affiliate disclosure
Category medians
FD3 vs. Utility median
Allis Chalmers FD3 compared with other Utility tractors
| Spec | This model | Utility median | Difference | Percentile |
|---|---|---|---|---|
| Engine Power | 25 hp | 55 hp | -55% | 16th |
| Engine Displacement | 95.8 ci | 183 ci | -48% | 22nd |
| Cylinders | 2 | 4 | -50% | 3rd |
| Forward Gears | 8 | 12 | -33% | 23rd |
| Operating Weight | 3,150 lb | 5,303 lb | -41% | 25th |
| Length | 112 in | 137 in | -18% | 18th |
| Height | 51.2 in | 94.1 in | -46% | 3rd |
Medians and percentiles are calculated from the utility tractors in the database that have a recorded value for each specification (sample size 4,321–5,720 models).
Same manufacturer
Other Allis Chalmers models
Other manufacturers
Models with similar horsepower
Gallery
Allis Chalmers FD3 photos




FAQ
Frequently asked questions
How powerful is the Allis Chalmers FD3?
The Allis Chalmers FD3 has an engine power output of 25 hp. It is powered by a 2-cylinder engine displacing 95.8 ci.
What type of transmission does the Allis Chalmers FD3 have?
The Allis Chalmers FD3 uses a Manual transmission offering 8 forward gears.
What is the working weight of the Allis Chalmers FD3?
The operating weight of the Allis Chalmers FD3 is approximately 3,150 lb.
What routine service does the Allis Chalmers FD3 need?
Regular maintenance for the Allis Chalmers FD3 includes checking and changing engine oil, hydraulic fluid, and filters, plus routine inspections as recommended in the owner's manual. Always follow the manufacturer's maintenance schedule for specific intervals and procedures.





