Brand siblingYanmar AF645
The Yanmar AF645 is a versatile 4WD tractor built from 2001 to 2005. It features a powerful 45 hp diesel engine with four cylinders and liquid cooling. The engine, made by Yanmar, has a displacement of 168.1 ci and runs at 2500 rpm. This tractor is designed for tough farm work and offers reliable performance. The AF645 comes with a power shuttle transmission, giving the operator 18 forward and 18 reverse gears. It has power steering for easy handling and uses standard agricultural tires on both front and rear. The tractor measures 136.4 inches long, 63 inches wide, and 96.9 inches tall. Weighing 4883 lb, it's a sturdy machine built to handle various tasks. Additional features include a 74.8-inch wheelbase, 14-inch ground clearance, and adjustable tread widths for both front and rear wheels.
Quick specs
- Category
- Utility
- Engine Power Output
- 45hp
- Operating Weight
- 4,883 lb
- Transmission
- Power Shuttle
At a glance
How the AF645 compares
vs. Utility medianDistribution
Engine Power (hp)
Across all Utility tractors
This model
The AF645 ranks at the 39th percentile for engine power among recorded utility tractors.
Overview
About the Yanmar AF645
The Yanmar AF645 is a versatile 4WD tractor built from 2001 to 2005. It features a powerful 45 hp diesel engine with four cylinders and liquid cooling. The engine, made by Yanmar, has a displacement of 168.1 ci and runs at 2500 rpm. This tractor is designed for tough farm work and offers reliable performance. The AF645 comes with a power shuttle transmission, giving the operator 18 forward and 18 reverse gears. It has power steering for easy handling and uses standard agricultural tires on both front and rear. The tractor measures 136.4 inches long, 63 inches wide, and 96.9 inches tall. Weighing 4883 lb, it's a sturdy machine built to handle various tasks. Additional features include a 74.8-inch wheelbase, 14-inch ground clearance, and adjustable tread widths for both front and rear wheels.
Full specifications
Every recorded spec
General
| Manufacturer | Yanmar |
|---|---|
| Model | AF645 |
| Category | Utility tractor |
| Type | 4x4 MFWD 4WD |
| Years built | 2001–2005 |
| Operating weight | 4,883lb |
Engine
| Make | Yanmar |
|---|---|
| Model | 4TNV94 |
| Power | 45hp |
| Cylinders | 4 |
| Displacement | 168.1ci |
Transmission
| Type | Power Shuttle |
|---|---|
| Forward gears | 18 |
| Reverse gears | 18 |
Chassis & drive
| Chassis | 4x4 MFWD 4WD |
|---|---|
| Drive | 4WD |
| Steering | Power |
Dimensions
| Length | 136.4in |
|---|---|
| Width | 63in |
| Height | 96.9in |
| Operating weight | 4,883lb |
Head to head
AF645 vs. Utility median
How the Yanmar AF645 compares to other Utility tractors
| Spec | This model | Utility median | Difference | Percentile |
|---|---|---|---|---|
| Engine Power | 45 hp | 55 hp | -18% | 39th |
| Engine Displacement | 168 ci | 183 ci | -8% | 45th |
| Cylinders | 4 | 4 | at median | 50th |
| Forward Gears | 18 | 12 | +50% | 83rd |
| Operating Weight | 4,883 lb | 5,303 lb | -8% | 47th |
| Length | 136 in | 137 in | 0% | 50th |
| Width | 63 in | 66 in | -5% | 43rd |
| Height | 96.9 in | 94.1 in | +3% | 57th |
Medians and percentiles are computed from the utility tractors in our database with a recorded value for each spec (sample sizes 3,933–5,720 models).
Compare to tractors with similar specs
Commonly compared Yanmar tractors
| Tractor | Engine Power | Operating Weight | Years | Compare |
|---|---|---|---|---|
| Yanmar EF453 | 45 hp | 3,417 lb | 2009–2019 | Compare → |
| Yanmar EX450 | 45 hp | 3,499 lb | 2012+ | Compare → |
| Yanmar LX450 | 45 hp | 3,585 lb | — | Compare → |
| Yanmar YM4500 | 45 hp | — | — | Compare → |
| Yanmar EF453T | 44.4 hp | — | — | Compare → |
Commonly compared tractors with similar horsepower from other brands
| Tractor | Engine Power | Operating Weight | Years | Compare |
|---|---|---|---|---|
| Ag King AK4540 | 45 hp | 4,650 lb | — | Compare → |
| Apollo 454 | 45 hp | 4,365 lb | — | Compare → |
| Ascot Universal 445 | 45 hp | 4,500 lb | — | Compare → |
| Barreiros 5000 VR | 45 hp | 4,080 lb | — | Compare → |
| AGCO ST45 | 44.2 hp | 4,448 lb | — | Compare → |
Explore
Yanmar siblings
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FAQ
Common questions
When was the Yanmar AF645 made?
The Yanmar AF645 was manufactured from 2001 to 2005.
What is the operating weight of the Yanmar AF645?
In working trim, the Yanmar AF645 comes in at roughly 4,883 lb.
Which transmission does the Yanmar AF645 use?
The Yanmar AF645 is equipped with a Power Shuttle transmission with 18 forward gears.
What is the engine power output of the Yanmar AF645?
Rated engine output for the Yanmar AF645 is 45 hp, delivered by a 4-cylinder engine. The engine displaces 168.1 ci.
How do I maintain a Yanmar AF645?
Routine service for the Yanmar AF645 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.


