Head to head · Row Crop

Allis Chalmers D21 Series II vs CaseIH MX120 Maxxum

Image not recorded
CaseIHModel B

CaseIH MX120 Maxxum

Agricultural

power
120 hp
displacement
359 ci
Cylinders
6
Forward gears
16
Full MX120 Maxxum specs
Allis ChalmersAllis Chalmers D21 Series II
vs
CaseIHCaseIH MX120 Maxxum

How they compare

Headline specs vs. the whole Row Crop

n = 1,140–1,417

Engine Power

▲ D21 Series II higher · +1 hp (<1%)
D21 Series II121 hp
MX120 Maxxum120 hp
Median Row Crop Tractor138 hp

D21 Series II is in the 40th percentile; MX120 Maxxum is in the 39th · 1,206 models

Engine Displacement

▲ D21 Series II higher · +67 ci (+19%)
D21 Series II426 ci
MX120 Maxxum359 ci
Median Row Crop Tractor391 ci

D21 Series II is in the 72nd percentile; MX120 Maxxum is in the 41st · 1,409 models

Cylinders

= Effectively tied
D21 Series II6
MX120 Maxxum6
Median Row Crop Tractor6

D21 Series II is in the 50th percentile; MX120 Maxxum is in the 50th · 1,417 models

Forward Gears

▲ MX120 Maxxum higher · +8 (+100%)
D21 Series II8
MX120 Maxxum16
Median Row Crop Tractor16

D21 Series II is in the 16th percentile; MX120 Maxxum is in the 50th · 1,200 models

D21 Series II (A)MX120 Maxxum (B)Median Row Crop Tractor

Full comparison

Every spec, side by side

General Information

SpecAllis Chalmers D21 Series IICaseIH MX120 MaxxumDifference
ManufacturerAllis ChalmersCaseIH—
ModelD21 Series IIMX120 Maxxum—
CategoryRow CropAgricultural—

Engine

SpecAllis Chalmers D21 Series IICaseIH MX120 MaxxumDifference
ManufacturerAllis ChalmersCummins/CDC—
Model3500Not recorded—
Power Output121hp120hp▲ D21 Series II+1 hp · <1%
Rated RPM2,200RPM2,200RPMSame
Cylinders66Same
Displacement426ci359ci▲ D21 Series II+67 ci · +19%
Bore4.3in4in▲ D21 Series II+0.3 in · +7%
Stroke5in4.7in▲ D21 Series II+0.3 in · +6%

Transmission

SpecAllis Chalmers D21 Series IICaseIH MX120 MaxxumDifference
TypeSliding gear with dry disc clutchSynchromesh—

Dimensions & Weight

SpecAllis Chalmers D21 Series IICaseIH MX120 MaxxumDifference
Length160in198in▲ MX120 Maxxum+38 in · +24%
Width91.3inNot recorded—
Height106in115in▲ MX120 Maxxum+9 in · +8%
Operating Weight9,502lb11,300lb▲ MX120 Maxxum+1,798 lb · +19%

Hydraulics

SpecAllis Chalmers D21 Series IICaseIH MX120 MaxxumDifference
System TypeNot recordedClosed Center Pressure Flow Compensated (PFC)—
Steering TypePowerPowerSame

Power Take-off (PTO)

SpecAllis Chalmers D21 Series IICaseIH MX120 MaxxumDifference
TypeIndependentNot recorded—
Speed 11,000rpmNot recorded—

Hitch & Towing

SpecAllis Chalmers D21 Series IICaseIH MX120 MaxxumDifference
Hitch TypeThree-Point HitchThree-Point HitchSame
Hitch CategoryIII/IIII/IIIN—
Hitch PositionRearRearSame

Chassis & Drive

SpecAllis Chalmers D21 Series IICaseIH MX120 MaxxumDifference
Chassis Type4x2 2WD2WD—
Drive Type2WD2WDSame
Steering TypePowerPowerSame
Brake TypeBand actuated discWet Disc—

Electrical

SpecAllis Chalmers D21 Series IICaseIH MX120 MaxxumDifference
Starter TypeElectricElectricSame

Capacities

SpecAllis Chalmers D21 Series IICaseIH MX120 MaxxumDifference
Coolant7.8gal4.9gal▲ D21 Series II+2.9 gal · +59%

Operator Station

SpecAllis Chalmers D21 Series IICaseIH MX120 MaxxumDifference
TypeOpenROPS—

Category context

Both models against the field

Engine Power

median 138 hp
A · 40th percentile (121 hp)B · 39th percentile (120 hp)

Engine Displacement

median 391 ci
A · 72nd percentile (426 ci)B · 41st percentile (359 ci)

Cylinders

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

Forward Gears

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

Operating Weight

median 12,307 lb
A · 28th percentile (9,502 lb)B · 42nd percentile (11,300 lb)
A · D21 Series IIB · MX120 MaxxumMedian Row Crop Tractor
Full spec pageAllis Chalmers D21 Series IIFull spec pageCaseIH MX120 Maxxum