Head to head · Row Crop

Allis Chalmers D21 Series I vs Challenger MT465B

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Allis ChalmersModel A

Allis Chalmers D21 Series I

Row Crop

power
103 hp
displacement
426 ci
Cylinders
6
Forward gears
8
Full D21 Series I specs
Challenger MT465B Tractor
ChallengerModel B

Challenger MT465B

Utility

power
103 hp
displacement
268 ci
Cylinders
4
Forward gears
16
Full MT465B specs
Allis ChalmersAllis Chalmers D21 Series I
vs
ChallengerChallenger MT465B

How they compare

Headline specs vs. the whole Row Crop

n = 806–1,417

Engine Power

= Effectively tied
D21 Series I103 hp
MT465B103 hp
Median Row Crop Tractor138 hp

D21 Series I is in the 27th percentile; MT465B is in the 27th · 1,206 models

Engine Displacement

▲ D21 Series I higher · +158 ci (+59%)
D21 Series I426 ci
MT465B268 ci
Median Row Crop Tractor391 ci

D21 Series I is in the 72nd percentile; MT465B is in the 20th · 1,409 models

Cylinders

▲ D21 Series I higher · +2 (+50%)
D21 Series I6
MT465B4
Median Row Crop Tractor6

D21 Series I is in the 50th percentile; MT465B is in the 17th · 1,417 models

Forward Gears

▲ MT465B higher · +8 (+100%)
D21 Series I8
MT465B16
Median Row Crop Tractor16

D21 Series I is in the 16th percentile; MT465B is in the 50th · 1,200 models

D21 Series I (A)MT465B (B)Median Row Crop Tractor

Full comparison

Every spec, side by side

General Information

SpecAllis Chalmers D21 Series IChallenger MT465BDifference
ManufacturerAllis ChalmersChallenger—
ModelD21 Series IMT465B—
CategoryRow CropUtility—

Engine

SpecAllis Chalmers D21 Series IChallenger MT465BDifference
ManufacturerAllis ChalmersPerkins—
Model34001104C—
Power Output103hp103hpSame
Rated RPM2,200RPM2,200RPMSame
Cylinders64▲ D21 Series I+2 · +50%
Displacement426ci268ci▲ D21 Series I+158 ci · +59%
Bore4.3in4.1in▲ D21 Series I+0.2 in · +5%
Stroke5in5inSame

Transmission

SpecAllis Chalmers D21 Series IChallenger MT465BDifference
TypeSliding gear with dry disc clutchSelective gear fixed ratio with partial (2) range operator controlled powershift—

Dimensions & Weight

SpecAllis Chalmers D21 Series IChallenger MT465BDifference
Length161in169in▲ MT465B+8 in · +5%
Width91.6in101in▲ MT465B+9.4 in · +10%
Height107in109in▲ MT465B+2 in · +2%
Operating Weight9,500lb10,105lb▲ MT465B+605 lb · +6%

Hydraulics

SpecAllis Chalmers D21 Series IChallenger MT465BDifference
System TypeNot recordedOpen center—
Steering TypePowerHydrostatic power—

Power Take-off (PTO)

SpecAllis Chalmers D21 Series IChallenger MT465BDifference
TypeIndependentNot recorded—
Speed 11,000rpmNot recorded—

Hitch & Towing

SpecAllis Chalmers D21 Series IChallenger MT465BDifference
Hitch TypeThree-Point HitchRear—
Hitch CategoryIII/IINot recorded—
Hitch PositionRearRearSame
Hitch CapacityNot recorded7,285lb—

Chassis & Drive

SpecAllis Chalmers D21 Series IChallenger MT465BDifference
Chassis Type4x2 2WD4x2 2WDSame
Drive Type2WD2WDSame
Steering TypePowerHydrostatic power—
Brake TypeBand actuated discNot recorded—

Electrical

SpecAllis Chalmers D21 Series IChallenger MT465BDifference
Starter TypeElectricElectricSame

Capacities

SpecAllis Chalmers D21 Series IChallenger MT465BDifference
Coolant5.3galNot recorded—

Operator Station

SpecAllis Chalmers D21 Series IChallenger MT465BDifference
TypeOpenOpen and Closed options available—

Category context

Both models against the field

Engine Power

median 138 hp
A · 27th percentile (103 hp)B · 27th percentile (103 hp)

Engine Displacement

median 391 ci
A · 72nd percentile (426 ci)B · 20th percentile (268 ci)

Cylinders

median 6
A · 50th percentile (6)B · 17th percentile (4)

Forward Gears

median 16
A · 16th percentile (8)B · 50th percentile (16)

Operating Weight

median 12,307 lb
A · 28th percentile (9,500 lb)B · 32nd percentile (10,105 lb)
A · D21 Series IB · MT465BMedian Row Crop Tractor
Full spec pageAllis Chalmers D21 Series IFull spec pageChallenger MT465B