Yanmar AF-18

Last Updated: June 2024

Overview

The Yanmar AF-18 is a compact utility tractor that was part of the AF Series and manufactured starting in 1992. Noted for its 4WD chassis and liquid-cooled three-cylinder Yanmar diesel engine model 3TNE74, this tractor was designed for a variety of tasks around the farm or homestead. With a power output of 17.8 hp, it operates at a rated RPM of 2500. The tractor's transmission features a creeper gear with 12 forward and reverse speeds, giving it versatility in various working conditions. With a wheelbase of 53.2 inches and a weight of 1653 pounds, this tractor was built to be stable yet maneuverable. With a notable ground clearance of 13 inches, it can handle uneven terrain with ease. The mentioned dimensions reveal a compact tractor with a length of 103.2 inches, a height of 74.2 inches, and a width of 43.3 inches, demonstrating its capability to work in confined spaces.
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Key Specifications

Category: Utility

Power Output: 17.8

Transmission: creeper

Drive Type: 4WD

Operating Weight: 1653

Fuel Type: diesel

Yanmar AF-18 vs. Similar Tractors

Power Output
Poor
Greater than 6% of similar tractors.
Operating Weight
Below Average
Greater than 13% of similar tractors.

Technical Specifications

Engine

Manufacturer
Yanmar
Model
3TNE74
Cooling Type
liquid-cooled
Cylinder Orientation
-
Valve Configuration
-
Fuel Type
diesel
Induction Type
naturally aspirated (assumed)
Cylinders
3
Displacement (ci)
61.4
Bore (in)
2.91
Stroke (in)
3.07
Rated RPM
2500
Power Output (hp)
17.8

Transmission

Type
creeper
Forward Gears
12
Reverse Gears
12
Total Gears
-

Dimensions

Length (in)
103.2
Width (in)
43.3
Height (in)
74.2
Operating Weight (lb)
1653

Power Take-Off (PTO)

PTO Type
-
PTO Speed 1 (rpm)
-
PTO Speed 2 (rpm)
-
PTO Speed 3 (rpm)
-

Miscellaneous

Chassis
4x4 MFWD 4WD
Drive Type
4WD
Steering Type
-
Coolant Capacity (qts)
-
Front Tire Diameter (in)
12 (assumed from tire specification)
Front Tire Width (in)
6.00 (assumed from tire specification)
Rear Tire Diameter (in)
22 (assumed from tire specification)
Rear Tire Width (in)
8.3
Front/Rear Rim Diameter (in)
-
Tire Type
Standard (ag)
Manufacture - End Year
-
Hitch Type
-
Hitch Category
-
Hitch Position
-
Hitch Capacity (lb)
-
Operator Station Type
-
Starter Type
Electric
Brake Type
-
Hydraulic System Type
-