Compare/Yanmar AF645 vs Yanmar Ex450

Yanmar AF645 vs Yanmar Ex450

Verdict: Yanmar AF645 vs Yanmar Ex450

The Yanmar AF645 and the Yanmar Ex450 are both tractors — here is how they stack up on the figures that matter. Both are rated at the same 45 hp. Yanmar Ex450 is the lighter machine (1,587 kg vs 2,214 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. Yanmar AF645 holds more fuel (65.1 L vs 42.8 L) for longer stints between fills. Yanmar Ex450 is the newer design (2012 vs 2001). Use the full side-by-side spec tables below to weigh the details against your own operation, and confirm with a dealer demo.

Tune the fit score

Tell us about your operation

Acreage600 acBudgetMain crop / use

Fit & specs

Yanmar

Fit score

Best match

Clear

Yanmar

Fit score

Best match

Clear

Rated power

45 hp

Confidence

40%

Guide price

—

Overview

Manufacturer

YanmarReference

Original price

—

$21,299 (2009)Reference

Steering

—

hydraulic powerReference

Engine

liquid-cooledReference

Fuel tank

65.1 LReference

42.8 LReference

Engine

33.6 kWReference

—

Displacement

2.8 LReference

2.2 LReference

Power

33.6 kWReference

—

Rated RPM

2500Reference

2700Reference

Starter

electricReference

Starter volts

12Reference

Engine (gross)

—

33.6 kWReference

Bore/Stroke

—

88 x 90 mmReference

Power (gross)

—

33.6 kWReference

Fuel system

—

direct injectionReference

Air cleaner

—

dual dry elementsReference

Oil capacity

—

26.5 LReference

Coolant capacity

—

4.4 LReference

Fuel Type

—

dieselReference

No of Cylinders

—

4 cylinderReference

Rated engine speed

—

2,700 RPMReference

Bore and stroke

—

3.465x3.543 inchesReference

Cooling system

—

liquid-cooledReference

Transmission

Type

power shuttleReference

synchronized shuttleReference

Gears

18 forward and reverseReference

9 forward and reverseReference

Clutch

hydraulic wet discReference

dual stage dryReference

Transmission Type

—

Sync ShuttleReference

forward and reverse options

—

Synchronized Shuttle : 9 F and 9 RReference

Wheel Drive

—

4WDReference

PTO & Hydraulics

Rear Type

IReference

1Reference

Control

position controlReference

Rear lift

1702 kgReference

—

Rear PTO

independentReference

liveReference

Rear PTO Type

564/756/1073 (1.375)Reference

540Reference

PTO (claimed)

—

28.0 kWReference

Valves

—

2 or 3Reference

Pump flow

—

31.0 lpmReference

Total flow

—

48.1 lpmReference

Steering flow

—

17.0 lpmReference

Rear lift (at 24"/610mm)

—

1117 kgReference

Dimensions

Wheelbase

189 cmReference

182 cmReference

Weight

2214 kgReference

1587 kgReference

Front tire

8-15Reference

8-16Reference

Rear tire

13.6-28Reference

14.9-24Reference

Standard tires (ag)

Front: 8-15. Rear: 13.6-28Reference

—

Length

346 cmReference

322 cmReference

Width

160 cmReference

182 cmReference

Height

246 cmReference

—

Ground clearance

35 cmReference

34 cmReference

Front tread

119 to 148 cmReference

—

Rear tread

127 to 161 cmReference

—

Ag front

—

8-16Reference

Ag rear

—

14.9-24Reference

Lawn/turf front

—

27x12-15Reference

Lawn/turf rear

—

44x16.1-22.5Reference

Industrial front

—

10-16.5Reference

Industrial rear

—

17.5-24Reference

Operating weight

—

1587 kgReference

Electrical

Ground

negativeReference

Battery volts

12Reference

Battery AH

110Reference

—

Capacities

Fuel

—

42.8 LReference

Front axle

—

7.6 LReference

Capacity

—

133.6 ciReference

Crankcase oil volume

—

5.6 qtsReference

Yanmar Ex450 attachments

Attachment overview

Yanmar CB85 Backhoe

Backhoe type

—

Yanmar CB85 BackhoeReference

Digging depth

—

261 cmReference

2-Foot flat digging depth

—

259 cmReference

Reach from pivot

—

360 cmReference

Loading height

—

220 cmReference

Bucket Rotation

—

180°Reference

Swing Arc

—

180°Reference

Bucket force

—

1691 kgReference

Dipperstick force

—

1104 kgReference

General

Make & Model

—

YanmarReference

Rollover protective structure

—

Two-post ROPS.Reference

Power

Max Power

—

45 hpReference

PTO

PTO Power

—

37.5 hpReference

Rear PTO Power

—

AvailableReference

Rear PTO RPM

—

540 RPMReference

Steering & brakes

Brakes

—

wet discReference

Steering type

—

hydraulic powerReference

Hydraulics

Pump Rated Output (total)

—

12.7 gpmReference

Hydraulics Type

—

open centerReference

Remote Valves

—

2 or 3 ValvesReference

Steering & Implements flow

—

4.5 gpm (8.2 gpm)Reference

Rear Hitch category (SAE designation)

—

Category 1Reference

Rear Hitch Sensing Type

—

position controlReference

Dimensions & weight

Overall Length

—

322.6 cmReference

Overall Width

—

182.6 cmReference

Overall weight

—

1,587.1 kgReference

Fit score weighs budget, operation size, crop match and data confidence against the details above. It’s guidance, not advice — always confirm with a dealer demo.