Machine models

Yanmar Ex450 to Lx4900 specifications

Entries in this reference
Listing-entry count
5

Short answer

Yanmar Ex450 to Lx4900: tractors.

Selected configuration figures
Configuration	Documented field and quantity
Ex450	Power (gross) 45 hp Weight 3,499 lb
Lx450	Power (gross) 45 hp Weight 3,585 lb
Lx490	Power (gross) 48.5 hp Weight 3,618 lb
Lx4500	Power (gross) 45 hp Weight 3,585 lb
Lx4900	Power (gross) 48.5 hp Weight 3,618 lb

Ex450 to Lx4900 specification matrix — Listing labels reported by the source
Publisher name	Source guide	Listing-entry count	Labels named by the source
Yanmar	Ex450 to Lx4900	5	Ex450, Lx450, Lx490, Lx4500, and Lx4900

Engine
Specification	Ex450	Lx450	Lx490	Lx4500	Lx4900
Engine	Yanmar 2.2L 4-cyl diesel	Yanmar 2.2L 4-cyl diesel	Yanmar 2.0L 4-cyl diesel	Yanmar 2.2L 4-cyl diesel	Yanmar 2.0L 4-cyl diesel

Specification	Lx450	Lx490
Fuel tank	11.9 gal	11.9 gal

Transmission and speeds
Specification	Ex450	Lx450	Lx490	Lx4500	Lx4900
Transmission	9-speed synchronized shuttle	12-speed power shuttle	12-speed power shuttle	hydrostatic	hydrostatic
Type	synchronized shuttle	power shuttle	power shuttle	hydrostatic	hydrostatic
Gears	9 forward and reverse	12 forward and reverse	12 forward and reverse	infinite forward and reverse (3-range)	infinite forward and reverse (3-range)
Oil capacity	28 qts	34 qts	34 qts	34.8 qts	34.8 qts

Specification	Ex450	Lx450	Lx490
Clutch	dual stage dry	wet disc	wet disc

Power
Specification	Ex450	Lx450	Lx490	Lx4500	Lx4900
Engine (gross)	45 hp	45 hp	48.5 hp	45 hp	48.5 hp

Specification	Ex450	Lx4500	Lx4900
PTO (claimed)	37.5 hp	32.5 hp	35 hp

Mechanical
Specification	Ex450	Lx450	Lx490	Lx4500	Lx4900
Steering	hydraulic power	hydraulic power	hydraulic power	hydraulic power	hydraulic power
Mechanical	Four-wheel drive; Wet disc brakes; Two-post ROPS	Four-wheel drive; Wet disc brakes; Two-post ROPS	Four-wheel drive; Wet disc brakes; Two-post ROPS	Four-wheel drive; Wet disc brakes; Two-post ROPS	Four-wheel drive; Wet disc brakes; Two-post ROPS

Specification	Lx4500	Lx4900
Final drives	planetary	planetary

Capacity
Specification	Ex450	Lx4500	Lx4900
Fuel	11.3 gal	11.9 gal	11.9 gal
Front axle	8 qts	9.28 qts	9.28 qts

Hydraulics
Specification	Ex450	Lx450	Lx490	Lx4500	Lx4900
Type	open center	open center	open center	open center	open center
Valves	2 or 3	2 to 3	2 to 3	2 to 3	2 to 3
Pump flow	8.2 gpm	9 gpm	8.6 gpm	9.0 gpm	8.7 gpm
Steering flow	4.5 gpm	6.8 gpm	6.5 gpm	6.8 gpm	6.5 gpm

Specification	Ex450
Total flow	12.7 gpm

Tractor hitch
Specification	Ex450	Lx450	Lx490	Lx4500	Lx4900
Rear Type	1	1	1	1	1
Control	position control	position control	position control	position control	position control
Rear lift (at 24"/610mm)	2,464 lb	2,760 lb	2,760 lb	2,760 lb	2,760 lb

Power take-off (PTO)
Specification	Ex450	Lx450	Lx490	Lx4500	Lx4900
Rear PTO	live	independent	independent	independent	independent
Clutch	dry dual stage	electro-hydraulic	electro-hydraulic	electro-hydraulic	electro-hydraulic
Rear PTO Type	540	540	540	540	540

Specification	Lx4500	Lx4900
Mid PTO	optional	optional

Dimensions & Tires
Specification	Ex450	Lx450	Lx490	Lx4500	Lx4900
Wheelbase	72 in	74.8 in	74.8 in	74.8 in	74.8 in
Weight	3,499 lb	3,585 lb	3,618 lb	3,585 lb	3,618 lb
Front tire	8-16	8-16	8-16	8-16	8-16
Rear tire	14.9-24	14.9-24	14.9-24	14.9-24	14.9-24

Attachments
Specification	Ex450	Lx450	Lx490	Lx4500	Lx4900
attachments	front-end loader; backhoe	front-end loader; backhoe	front-end loader; backhoe	front-end loader; backhoe	front-end loader; backhoe

Electrical
Specification	Ex450	Lx450	Lx490	Lx4500	Lx4900
Ground	negative	negative	negative	negative	negative
Battery volts	12	12	12	12	12

Engine Detail
Specification	Ex450	Lx450	Lx490	Lx4500	Lx4900
Displacement	133.6 cu in	133.6 cu in	119.3 cu in	133.6 cu in	121.7 cu in
Bore/Stroke	3.465x3.543 in / 88 x 90 mm	3.465x3.543 in / 88 x 90 mm	3.307x3.543 in / 84 x 90 mm	3.465x3.543 in / 88 x 90 mm	3.307x3.543 in / 84 x 90 mm
Power (gross)	45 hp	45 hp	48.5 hp	45 hp	48.5 hp
Fuel system	direct injection	direct injection	direct injection	direct injection	direct injection
Rated RPM	2700	2700	2600	2700	2600
Starter	electric	electric	electric	electric	electric
Starter volts	12	12	12	12	12
Oil capacity	5.6 qts	5.62 qts	5.62 qts	5.62 qts	5.62 qts
Coolant capacity	4.7 qts	5.1 qts	5.1 qts	5.7 qts	5.7 qts
Engine Detail	Yanmar; diesel; 4-cylinder	Yanmar; diesel; 4-cylinder	Yanmar; turbocharged diesel; 4-cylinder	Yanmar; diesel; 4-cylinder	Yanmar; turbocharged diesel; 4-cylinder

Specification	Ex450	Lx450	Lx490
Air cleaner	dual dry elements	dual dry element	dual dry element

Yanmar Ex450 Tires
Specification	Ex450
Ag front	8-16
Ag rear	14.9-24
Lawn/turf front	27x10.5-15
Lawn/turf rear	44x18-20
Industrial front	10-16.5
Industrial rear	17.5-24

Dimensions and weight
Specification	Ex450	Lx450	Lx490	Lx4500	Lx4900
Length	127 in	124 in	124 in	124 in	124 in
Width	71.89 in	69.5 in	69.5 in	69.5 in	69.5 in
Ground clearance	13.4 in	15 in	15 in	16.6 in	16.6 in

Specification	Ex450
Operating weight	3,499 lb

Yanmar Lx450 Tires
Specification	Lx450
Ag front	8-16
Ag rear	14.9-24
Lawn/turf front	27x10.5-15
Lawn/turf rear	44x18-20
Industrial front	10-16.5
Industrial rear	17.5LL-24

Yanmar Lx490 Tires
Specification	Lx490
Ag front	8-16
Ag rear	14.9-24
Lawn/turf front	27x10.5-15
Lawn/turf rear	44x18-20
Industrial front	10-16.5
Industrial rear	17.5LL-24

Yanmar Lx4500 Tires
Specification	Lx4500
Ag front	8-16
Ag rear	14.9-24
Lawn/turf front	27x10.5-15
Lawn/turf rear	44x18-20
Industrial front	10-16.5
Industrial rear	17.5LL-24

Yanmar Lx4900 Tires
Specification	Lx4900
Ag front	8-16
Ag rear	14.9-24
Lawn/turf front	27x10.5-15
Lawn/turf rear	44x18-20
Industrial front	10-16.5
Industrial rear	17.5LL-24

Variants — Source comparison annotation
Source guide	Differing-field count reported
Ex450 to Lx4900	66

Ratios
Figure	Ex450	Lx450	Lx490	Lx4500	Lx4900
Engine horsepower per 1,000 lb of weight	12.9	12.6	13.4	12.6	13.4
Hitch lift as a share of machine weight	70%	77%	76%	77%	76%
Pump flow per engine horsepower	0.18 gpm	0.20 gpm	0.18 gpm	0.20 gpm	0.18 gpm

Figure	Ex450	Lx4500	Lx4900
PTO power as a share of engine power	83%	72%	72%

Figure	Lx450	Lx490
Fuel tank per engine horsepower	0.26 gal	0.25 gal

Reference directory classification
Equipment group	tractor

Owner experience with the Ex450 to Lx4900 — Historical owner-entry sample
Index	Entry queried	Reviews	Forum discussions	First review in sample	Last review in sample
TractorByNet	Lx4500 tractor	2	4	Apr 2, 2014	Feb 11, 2016

Model	Owner rating	Forum discussions	Model years reviewed	Pros named more than once	Cons named more than once
Lx4500	4.5 of 5 from 2 owner reviews	4 (2,514 views)	2009	named once each: all around very high quality build, simple, straightforward	named once each: loader has low weight limit, no stock rear remotes, parts are expensive

Ex450 to Lx4900: forum references — Forum-title search
Forum index	Equipment class queried	Names in the search	Matching titles
TractorByNet	tractor	Yanmar and the Ex450, Lx450, Lx490, Lx4500	14

Topics named by those titles
Title topic	Titles
hydraulics	2

Topic in the title	Threads	Share of matching threads
hydraulics	2	14%

Yanmar Lx4500 Wont Stay Running (TractorByNet, 2025-09-29)
Hydraulic Fluid In Crank Case 2013 Yanmar Lx490 (TractorByNet, 2020-10-01)
Yanmar Lx4500 Tractor Loader Cab Implements For Sale (TractorByNet, 2018-02-18)
Basic Questions On Yanmar Ex 450 (TractorByNet, 2017-05-02)

Ex450 to Lx4900: dated market and recall observations — Dated listing search
Date	Listing index	Equipment class	Names queried	Result
2026-09-24	TractorHouse (tractorhouse.com)	tractor	Ex450, Lx450, Lx490	No matching offers in this snapshot

Dated CPSC search
Date	Database	Names queried	Result
2026-09-24	U.S. Consumer Product Safety Commission	Yanmar; Ex450, Lx450, Lx490	No matching recall in the stated search

Sources for this page
Evidence class	Document, classification and recorded date
Reference site	Reference site: Yanmar Ex450 — TractorData. Observed 2026-09-24.
Reference site	Reference site: Yanmar Lx450 — TractorData. Observed 2026-09-24.
Reference site	Reference site: Yanmar Lx490 — TractorData. Observed 2026-09-24.
Reference site	Reference site: Yanmar Lx4500 — TractorData. Observed 2026-09-24.
Reference site	Reference site: Yanmar Lx4900 — TractorData. Observed 2026-09-24.
Owner reports	Owner reports: TractorByNet owner reviews for Yanmar LX4500 — TractorByNet. Observed 2026-09-24.
Forum threads	Forum threads: TractorByNet thread index for Yanmar Ex450 to Lx4900 — TractorByNet. Observed 2026-09-24.
Federal agency data	Federal agency data: Recall database search for Yanmar — U.S. Consumer Product Safety Commission. Observed 2026-09-24.

Recorded observations — Historical TractorByNet review observation
Reference scope	Equipment type	Reviewed label in source	Owner entries	Average owner score	Scale maximum	Reported cons
Ex450, Lx450 and Lx490	tractor	LX4500	2	4.5	5	No con named by multiple reviewers

Yanmar Ex450 to Lx4900: Configuration records

Ex450

Specification	Source figure
Engine
Engine	Yanmar 2.2L 4-cyl diesel
Transmission and speeds
Transmission	9-speed synchronized shuttle
Gears	9 forward and reverse
Power
Engine (gross)	45 hp
PTO (claimed)	37.5 hp
Mechanical
Steering	hydraulic power
Capacity
Fuel	11.3 gal
Front axle	8 qts
Hydraulics
Valves	2 or 3
Pump flow	8.2 gpm
Total flow	12.7 gpm
Steering flow	4.5 gpm
Type — Hydraulics	open center
Tractor hitch
Rear Type	1
Control	position control
Rear lift (at 24"/610mm)	2,464 lb
Power take-off (PTO)
Rear PTO	live
Rear PTO Type	540
Dimensions & Tires
Front tire	8-16
Rear tire	14.9-24
Electrical
Ground	negative
Battery volts	12
Engine Detail
Displacement	133.6 cu in
Bore/Stroke	3.465x3.543 in / 88 x 90 mm
Power (gross)	45 hp
Fuel system	direct injection
Air cleaner	dual dry elements
Rated RPM	2700
Starter	electric
Starter volts	12
Coolant capacity	4.7 qts
Tires
Ag front	8-16
Ag rear	14.9-24
Lawn/turf front	27x10.5-15
Lawn/turf rear	44x18-20
Industrial front	10-16.5
Industrial rear	17.5-24
Dimensions and weight
Length	127 in
Width	71.89 in
Operating weight	3,499 lb
Ground clearance	13.4 in
Additional specifications
Type	synchronized shuttle
Clutch	dual stage dry
Oil capacity	28 qts
Mechanical	Four-wheel drive; Wet disc brakes; Two-post ROPS
Wheelbase	72 in
Weight	3,499 lb
Attachments	front-end loader; backhoe
Engine Detail	Yanmar; diesel; 4-cylinder

Source

Lx450

Specification	Source figure
Engine
Engine	Yanmar 2.2L 4-cyl diesel
Fuel tank	11.9 gal
Transmission and speeds
Transmission	12-speed power shuttle
Gears	12 forward and reverse
Power
Engine (gross)	45 hp
Mechanical
Steering	hydraulic power
Hydraulics
Valves	2 to 3
Pump flow	9 gpm
Steering flow	6.8 gpm
Type — Hydraulics	open center
Tractor hitch
Rear Type	1
Control	position control
Rear lift (at 24"/610mm)	2,760 lb
Power take-off (PTO)
Rear PTO	independent
Rear PTO Type	540
Dimensions & Tires
Front tire	8-16
Rear tire	14.9-24
Electrical
Ground	negative
Battery volts	12
Engine Detail
Displacement	133.6 cu in
Bore/Stroke	3.465x3.543 in / 88 x 90 mm
Power (gross)	45 hp
Fuel system	direct injection
Air cleaner	dual dry element
Rated RPM	2700
Starter	electric
Starter volts	12
Coolant capacity	5.1 qts
Tires
Ag front	8-16
Ag rear	14.9-24
Lawn/turf front	27x10.5-15
Lawn/turf rear	44x18-20
Industrial front	10-16.5
Industrial rear	17.5LL-24
Dimensions and weight
Length	124 in
Width	69.5 in
Ground clearance	15 in
Additional specifications
Type	power shuttle
Clutch	wet disc
Oil capacity	34 qts
Mechanical	Four-wheel drive; Wet disc brakes; Two-post ROPS
Wheelbase	74.8 in
Weight	3,585 lb
Attachments	front-end loader; backhoe
Engine Detail	Yanmar; diesel; 4-cylinder

Source

Lx490

Specification	Source figure
Engine
Engine	Yanmar 2.0L 4-cyl diesel
Fuel tank	11.9 gal
Transmission and speeds
Transmission	12-speed power shuttle
Gears	12 forward and reverse
Power
Engine (gross)	48.5 hp
Mechanical
Steering	hydraulic power
Hydraulics
Valves	2 to 3
Pump flow	8.6 gpm
Steering flow	6.5 gpm
Type — Hydraulics	open center
Tractor hitch
Rear Type	1
Control	position control
Rear lift (at 24"/610mm)	2,760 lb
Power take-off (PTO)
Rear PTO	independent
Rear PTO Type	540
Dimensions & Tires
Front tire	8-16
Rear tire	14.9-24
Electrical
Ground	negative
Battery volts	12
Engine Detail
Displacement	119.3 cu in
Bore/Stroke	3.307x3.543 in / 84 x 90 mm
Power (gross)	48.5 hp
Fuel system	direct injection
Air cleaner	dual dry element
Rated RPM	2600
Starter	electric
Starter volts	12
Coolant capacity	5.1 qts
Tires
Ag front	8-16
Ag rear	14.9-24
Lawn/turf front	27x10.5-15
Lawn/turf rear	44x18-20
Industrial front	10-16.5
Industrial rear	17.5LL-24
Dimensions and weight
Length	124 in
Width	69.5 in
Ground clearance	15 in
Additional specifications
Type	power shuttle
Clutch	wet disc
Oil capacity	34 qts
Mechanical	Four-wheel drive; Wet disc brakes; Two-post ROPS
Wheelbase	74.8 in
Weight	3,618 lb
Attachments	front-end loader; backhoe
Engine Detail	Yanmar; turbocharged diesel; 4-cylinder

Source

Lx4500

Specification	Source figure
Engine
Engine	Yanmar 2.2L 4-cyl diesel
Transmission and speeds
Transmission	hydrostatic
Gears	infinite forward and reverse (3-range)
Power
Engine (gross)	45 hp
PTO (claimed)	32.5 hp
Mechanical
Steering	hydraulic power
Final drives	planetary
Capacity
Fuel	11.9 gal
Front axle	9.28 qts
Hydraulics
Valves	2 to 3
Pump flow	9.0 gpm
Steering flow	6.8 gpm
Type — Hydraulics	open center
Tractor hitch
Rear Type	1
Control	position control
Rear lift (at 24"/610mm)	2,760 lb
Power take-off (PTO)
Rear PTO	independent
Rear PTO Type	540
Mid PTO	optional
Dimensions & Tires
Front tire	8-16
Rear tire	14.9-24
Electrical
Ground	negative
Battery volts	12
Engine Detail
Displacement	133.6 cu in
Bore/Stroke	3.465x3.543 in / 88 x 90 mm
Power (gross)	45 hp
Fuel system	direct injection
Rated RPM	2700
Starter	electric
Starter volts	12
Coolant capacity	5.7 qts
Tires
Ag front	8-16
Ag rear	14.9-24
Lawn/turf front	27x10.5-15
Lawn/turf rear	44x18-20
Industrial front	10-16.5
Industrial rear	17.5LL-24
Dimensions and weight
Length	124 in
Width	69.5 in
Ground clearance	16.6 in
Additional specifications
Type	hydrostatic
Oil capacity	34.8 qts
Mechanical	Four-wheel drive; Wet disc brakes; Two-post ROPS
Clutch	electro-hydraulic
Wheelbase	74.8 in
Weight	3,585 lb
Attachments	front-end loader; backhoe
Engine Detail	Yanmar; diesel; 4-cylinder

Source

Lx4900

Specification	Source figure
Engine
Engine	Yanmar 2.0L 4-cyl diesel
Transmission and speeds
Transmission	hydrostatic
Gears	infinite forward and reverse (3-range)
Power
Engine (gross)	48.5 hp
PTO (claimed)	35 hp
Mechanical
Steering	hydraulic power
Final drives	planetary
Capacity
Fuel	11.9 gal
Front axle	9.28 qts
Hydraulics
Valves	2 to 3
Pump flow	8.7 gpm
Steering flow	6.5 gpm
Type — Hydraulics	open center
Tractor hitch
Rear Type	1
Control	position control
Rear lift (at 24"/610mm)	2,760 lb
Power take-off (PTO)
Rear PTO	independent
Rear PTO Type	540
Mid PTO	optional
Dimensions & Tires
Front tire	8-16
Rear tire	14.9-24
Electrical
Ground	negative
Battery volts	12
Engine Detail
Displacement	121.7 cu in
Bore/Stroke	3.307x3.543 in / 84 x 90 mm
Power (gross)	48.5 hp
Fuel system	direct injection
Rated RPM	2600
Starter	electric
Starter volts	12
Coolant capacity	5.7 qts
Tires
Ag front	8-16
Ag rear	14.9-24
Lawn/turf front	27x10.5-15
Lawn/turf rear	44x18-20
Industrial front	10-16.5
Industrial rear	17.5LL-24
Dimensions and weight
Length	124 in
Width	69.5 in
Ground clearance	16.6 in
Additional specifications
Type	hydrostatic
Oil capacity	34.8 qts
Mechanical	Four-wheel drive; Wet disc brakes; Two-post ROPS
Clutch	electro-hydraulic
Wheelbase	74.8 in
Weight	3,618 lb
Attachments	front-end loader; backhoe
Engine Detail	Yanmar; turbocharged diesel; 4-cylinder

Source

More in Yanmar: YM347/YM359, YT235/YT347, SA221–Sc2400.

Yanmar Ex450 to Lx4900 specifications

Sources for this page

Yanmar Ex450 to Lx4900: Configuration records