Head to head · Row Crop

Allis Chalmers D21 Series II vs Zetor Forterra 11741

Allis ChalmersAllis Chalmers D21 Series II
vs
ZetorZetor Forterra 11741

How they compare

Headline specs vs. the whole Row Crop

n = 806–1,417

Engine Power

▲ D21 Series II higher · +1 hp (<1%)
D21 Series II121 hp
Forterra 11741120 hp
Median Row Crop Tractor138 hp

D21 Series II is in the 40th percentile; Forterra 11741 is in the 39th · 1,206 models

Engine Displacement

▲ D21 Series II higher · +60 ci (+16%)
D21 Series II426 ci
Forterra 11741366 ci
Median Row Crop Tractor391 ci

D21 Series II is in the 72nd percentile; Forterra 11741 is in the 45th · 1,409 models

Cylinders

= Effectively tied
D21 Series II6
Forterra 117416
Median Row Crop Tractor6

D21 Series II is in the 50th percentile; Forterra 11741 is in the 50th · 1,417 models

Forward Gears

▲ Forterra 11741 higher · +16 (+200%)
D21 Series II8
Forterra 1174124
Median Row Crop Tractor16

D21 Series II is in the 16th percentile; Forterra 11741 is in the 81st · 1,200 models

D21 Series II (A)Forterra 11741 (B)Median Row Crop Tractor

Full comparison

Every spec, side by side

General Information

SpecAllis Chalmers D21 Series IIZetor Forterra 11741Difference
ManufacturerAllis ChalmersZetor—
ModelD21 Series IIForterra 11741—
CategoryRow CropUtility—

Engine

SpecAllis Chalmers D21 Series IIZetor Forterra 11741Difference
ManufacturerAllis ChalmersSAME—
Model35001000.6WT—
Power Output121hp120hp▲ D21 Series II+1 hp · <1%
Rated RPM2,200RPM2,350RPM▲ Forterra 11741+150 RPM · +7%
Cylinders66Same
Displacement426ci366ci▲ D21 Series II+60 ci · +16%
Bore4.3in4.1in▲ D21 Series II+0.2 in · +5%
Stroke5in4.6in▲ D21 Series II+0.5 in · +11%

Transmission

SpecAllis Chalmers D21 Series IIZetor Forterra 11741Difference
TypeSliding gear with dry disc clutchSynchronized—

Dimensions & Weight

SpecAllis Chalmers D21 Series IIZetor Forterra 11741Difference
Length160in206in▲ Forterra 11741+46 in · +29%
Width91.3in86.3in▲ D21 Series II+5 in · +6%
Height106in111in▲ Forterra 11741+5 in · +5%
Operating Weight9,502lb10,353lb▲ Forterra 11741+851 lb · +9%

Hydraulics

SpecAllis Chalmers D21 Series IIZetor Forterra 11741Difference
Steering TypePowerPowerSame

Power Take-off (PTO)

SpecAllis Chalmers D21 Series IIZetor Forterra 11741Difference
TypeIndependentNot recorded—
Speed 11,000rpmNot recorded—

Hitch & Towing

SpecAllis Chalmers D21 Series IIZetor Forterra 11741Difference
Hitch TypeThree-Point HitchNot recorded—
Hitch CategoryIII/IINot recorded—
Hitch PositionRearNot recorded—

Chassis & Drive

SpecAllis Chalmers D21 Series IIZetor Forterra 11741Difference
Chassis Type4x2 2WD4x4 MFWD 4WD—
Drive Type2WD4WD—
Steering TypePowerPowerSame
Brake TypeBand actuated discNot recorded—

Electrical

SpecAllis Chalmers D21 Series IIZetor Forterra 11741Difference
Starter TypeElectricElectricSame

Capacities

SpecAllis Chalmers D21 Series IIZetor Forterra 11741Difference
Coolant7.8galNot recorded—

Operator Station

SpecAllis Chalmers D21 Series IIZetor Forterra 11741Difference
TypeOpenNot recorded—

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 · 45th percentile (366 ci)

Cylinders

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

Forward Gears

median 16
A · 16th percentile (8)B · 81st percentile (24)

Operating Weight

median 12,307 lb
A · 28th percentile (9,502 lb)B · 34th percentile (10,353 lb)
A · D21 Series IIB · Forterra 11741Median Row Crop Tractor
Full spec pageAllis Chalmers D21 Series IIFull spec pageZetor Forterra 11741