Brand siblingSub-CompactPerformance profile
Yanmar AC-21
The Yanmar AC-21 is a compact tractor that was made from 2004 to 2007. It's a small but mighty machine, perfect for farmers who need a reliable helper on their land. This tractor is 92.1 inches long, 49.6 inches wide, and 71.9 inches tall, making it easy to maneuver in tight spaces. The AC-21 is powered by a Yanmar 3TNE74 engine. This engine is liquid-cooled and runs on diesel fuel. It has 3 cylinders and can produce 20.5 horsepower, which is enough for many farm tasks. The tractor uses a hydrostatic transmission, which makes it smooth and easy to drive. It weighs 1830 pounds and has a ground clearance of 12.6 inches, allowing it to handle different types of terrain. The AC-21 also features an electric starter and a category III hitch, making it versatile for various attachments and implements.
ManufacturerYanmarPower20.5 hpEngine3-cylTransHydrostatic
Image not recorded
Quick specs
- Category
- Sub-Compact
- Engine Power Output
- 21hp
- Operating Weight
- 1,830 lb
- Transmission
- Hydrostatic
At a glance
How the AC-21 compares
vs. Sub-Compact medianDistribution
Engine Power (hp)
Across all Sub-Compact tractors
20.5 hp · 27th
This model
4
Median 26.85 hp
49
This modelSub-Compact tractorsMediann = 816
The AC-21 ranks at the 27th percentile for engine power among recorded sub-compact tractors.
Overview
About the Yanmar AC-21
The Yanmar AC-21 is a compact tractor that was made from 2004 to 2007. It's a small but mighty machine, perfect for farmers who need a reliable helper on their land. This tractor is 92.1 inches long, 49.6 inches wide, and 71.9 inches tall, making it easy to maneuver in tight spaces. The AC-21 is powered by a Yanmar 3TNE74 engine. This engine is liquid-cooled and runs on diesel fuel. It has 3 cylinders and can produce 20.5 horsepower, which is enough for many farm tasks. The tractor uses a hydrostatic transmission, which makes it smooth and easy to drive. It weighs 1830 pounds and has a ground clearance of 12.6 inches, allowing it to handle different types of terrain. The AC-21 also features an electric starter and a category III hitch, making it versatile for various attachments and implements.
Full specifications
Every recorded spec
General
| Manufacturer | Yanmar |
|---|---|
| Model | AC-21 |
| Category | Sub-Compact tractor |
| Years built | 2004–2007 |
| Operating weight | 1,830lb |
Engine
| Make | Yanmar |
|---|---|
| Model | 3TNE74 |
| Power | 20.5hp |
| Cylinders | 3 |
| Displacement | 61.4ci |
| Bore | 2.91in |
| Stroke | 3.07in |
Transmission
| Type | Hydrostatic |
|---|
Dimensions
| Length | 92.1in |
|---|---|
| Width | 49.6in |
| Height | 71.9in |
| Operating weight | 1,830lb |
Head to head
AC-21 vs. Sub-Compact median
How the Yanmar AC-21 compares to other Sub-Compact tractors
| Spec | This model | Sub-Compact median | Difference | Percentile |
|---|---|---|---|---|
| Engine Power | 20.5 hp | 26.9 hp | -24% | 27th |
| Engine Displacement | 61.4 ci | 91.4 ci | -33% | 24th |
| Cylinders | 3 | 3 | at median | 50th |
| Operating Weight | 1,830 lb | 2,700 lb | -32% | 33rd |
| Length | 92.1 in | 113 in | -19% | 18th |
| Width | 49.6 in | 50.7 in | -2% | 48th |
| Height | 71.9 in | 78.4 in | -8% | 32nd |
Medians and percentiles are computed from the sub-compact tractors in our database with a recorded value for each spec (sample sizes 584–816 models).
Compare to tractors with similar specs
Commonly compared Yanmar tractors
| Tractor | Engine Power | Operating Weight | Years | Compare |
|---|---|---|---|---|
| Yanmar AF120 | 20 hp | 1,488 lb | 2002–2005 | Compare → |
| Yanmar AF220 | 20 hp | 1,896 lb | 2002–2004 | Compare → |
| Yanmar F17D | 21 hp | 2,161 lb | 1984–1994 | Compare → |
| Yanmar F20 | 20 hp | 2,416 lb | — | Compare → |
| Yanmar FX20 | 20 hp | 2,438 lb | — | Compare → |
Commonly compared tractors with similar horsepower from other brands
| Tractor | Engine Power | Operating Weight | Years | Compare |
|---|---|---|---|---|
| Ag King AK2040 | 20 hp | 2,470 lb | — | Compare → |
| Ariens GT20 | 20 hp | 959 lb | 1988–1995 | Compare → |
| Bobcat CT120 | 21 hp | 2,055 lb | 2008–2010 | Compare → |
| Bolens G212 G2102 | 21 hp | 1,588 lb | — | Compare → |
| Bolens G214 G2104 | 21 hp | 1,676 lb | — | Compare → |
Explore
Yanmar siblings
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FAQ
Common questions
When was the Yanmar AC-21 made?
The Yanmar AC-21 was manufactured from 2004 to 2007.
What is the operating weight of the Yanmar AC-21?
In working trim, the Yanmar AC-21 comes in at roughly 1,830 lb.
Which transmission does the Yanmar AC-21 use?
The Yanmar AC-21 is equipped with a Hydrostatic transmission.
What hitch category is the Yanmar AC-21?
The Yanmar AC-21 uses a Category III hitch.
What is the engine power output of the Yanmar AC-21?
Rated engine output for the Yanmar AC-21 is 20.5 hp, delivered by a 3-cylinder engine. The engine displaces 61.4 ci.
How do I maintain a Yanmar AC-21?
Routine service for the Yanmar AC-21 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.