Head to head · Utility

Hart-Parr 40 vs John Deere 820 (1956-1958)

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Hart-ParrModel A

Hart-Parr 40

Utility

power
40.7 hp
displacement
618 ci
Cylinders
4
Forward gears
2
Full 40 specs
Image not recorded
John DeereModel B

John Deere 820 (1956-1958)

Utility

power
67 hp
displacement
471 ci
Cylinders
2
Forward gears
6
Full 820 (1956-1958) specs
Hart-ParrHart-Parr 40
vs
John DeereJohn Deere 820 (1956-1958)

How they compare

Headline specs vs. the whole Utility

n = 3,933–5,720

Engine Power

▲ 820 (1956-1958) higher · +26.3 hp (+65%)
4040.7 hp
820 (1956-1958)67 hp
Median Utility Tractor55 hp

40 is in the 35th percentile; 820 (1956-1958) is in the 61st · 5,383 models

Engine Displacement

▲ 40 higher · +147 ci (+31%)
40618 ci
820 (1956-1958)471 ci
Median Utility Tractor183 ci

40 is in the 95th percentile; 820 (1956-1958) is in the 93rd · 5,580 models

Cylinders

▲ 40 higher · +2 (+100%)
404
820 (1956-1958)2
Median Utility Tractor4

40 is in the 50th percentile; 820 (1956-1958) is in the 3rd · 5,720 models

Forward Gears

▲ 820 (1956-1958) higher · +4 (+200%)
402
820 (1956-1958)6
Median Utility Tractor12

40 is in the 1st percentile; 820 (1956-1958) is in the 11th · 4,941 models

40 (A)820 (1956-1958) (B)Median Utility Tractor

Full comparison

Every spec, side by side

General Information

SpecHart-Parr 40John Deere 820 (1956-1958)Difference
ManufacturerHart-ParrJohn Deere—
Model40820 (1956-1958)—
CategoryUtility, Standard TreadUtility, Standard TreadSame

Engine

SpecHart-Parr 40John Deere 820 (1956-1958)Difference
ManufacturerHart-ParrJohn Deere—
ModelNot recordedJohn Deere—
Power Output40.7hp67hp▲ 820 (1956-1958)+26.3 hp · +65%
Rated RPM802RPMNot recorded—
Cylinders42▲ 40+2 · +100%
Displacement618ci471ci▲ 40+147 ci · +31%
Bore5.5in6.1in▲ 820 (1956-1958)+0.6 in · +11%
Stroke6.5in8in▲ 820 (1956-1958)+1.5 in · +23%

Transmission

SpecHart-Parr 40John Deere 820 (1956-1958)Difference
TypeGearUnsynchronized gear with dry disc clutch—

Dimensions & Weight

SpecHart-Parr 40John Deere 820 (1956-1958)Difference
Length140in143in▲ 820 (1956-1958)+3 in · +2%
Width96in79.1in▲ 40+16.9 in · +21%
Height67in80.7in▲ 820 (1956-1958)+13.7 in · +20%
Operating Weight6,300lb7,848lb▲ 820 (1956-1958)+1,548 lb · +25%

Hydraulics

SpecHart-Parr 40John Deere 820 (1956-1958)Difference
System TypeNot recordedPowr-Trol—
Steering TypeManualManualSame

Power Take-off (PTO)

SpecHart-Parr 40John Deere 820 (1956-1958)Difference
TypeNot recordedIndependent—
Speed 1Not recorded540rpm—

Hitch & Towing

SpecHart-Parr 40John Deere 820 (1956-1958)Difference
Hitch CategoryNot recordedCategory 3—
Hitch PositionNot recordedRear—

Chassis & Drive

SpecHart-Parr 40John Deere 820 (1956-1958)Difference
Chassis Type4x24x2 2WD—
Drive Type2WD2WDSame
Steering TypeManualManualSame

Electrical

SpecHart-Parr 40John Deere 820 (1956-1958)Difference
Starter TypeNot recordedGasoline pony motor—

Capacities

SpecHart-Parr 40John Deere 820 (1956-1958)Difference
Coolant28.8gal2gal▲ 40+26.8 gal · +1340%

Operator Station

SpecHart-Parr 40John Deere 820 (1956-1958)Difference
TypeNot recordedOpen operator station—

Category context

Both models against the field

Engine Power

median 55 hp
A · 35th percentile (40.7 hp)B · 61st percentile (67 hp)

Engine Displacement

median 183 ci
A · 95th percentile (618 ci)B · 93rd percentile (471 ci)

Cylinders

median 4
A · 50th percentile (4)B · 3rd percentile (2)

Forward Gears

median 12
A · 1st percentile (2)B · 11th percentile (6)

Operating Weight

median 5,303 lb
A · 60th percentile (6,300 lb)B · 74th percentile (7,848 lb)
A · 40B · 820 (1956-1958)Median Utility Tractor
Full spec pageHart-Parr 40Full spec pageJohn Deere 820 (1956-1958)