WhichTractor
  • WhichTractor size: Standard-size
  • Lab tested ×1
  • 2003–2007

WhichTractor size, not the maker’s category

Derived by WhichTractor from a sourced three-point linkage. How we decide what a machine is

John Deere 7420 specs: hp, weight, years

John Deere 6068HRW01 six-cylinder or John Deere PowrTech 6.068 HRW-01 diesel. OECD put one on a dynamometer and measured 127.4 hp at the power take-off — the number to size an implement from.

Measured at the PTO shaft

127.4 hp

Source · OECD Test 2081, measured

What “at the PTO” means, and why it matters

Drawbar hp
112.5

John Deere 7420 specs: key facts

  • The John Deere 7420 was built from 2003 to 2007 and produced 95.0 kW (127.4 hp) at the PTO, measured on OECD Test 2081.Source 2

  • The claimed engine power (gross or net not stated) of the John Deere 7420 is 99.4–99.4 kW (133.3–133.3 hp), depending on configuration.

  • The John Deere 7420 was offered in two-wheel-drive and four-wheel-drive versions.

  • The John Deere 7420 has a John Deere 6068HRW01 engine, a 6-cylinder 6.79 L unit.Source 1

  • The John Deere 7420 weighs 5,851 kg (12,899 lb) unladen.

  • The John Deere 7420 has an independent rear PTO running at 540/1000 rpm.

  • The three-point hitch of the John Deere 7420 lifts 5,500 kg (12,125 lb) at the lower-link ends.

  • The hydraulic pump of the John Deere 7420 delivers 120.0 L/min (31.7 gpm).

Source · Traktorenlexikon, “John Deere 7420”

John Deere 7420 tractor
Photo: Bill Burris, CC BY-SA 2.0 via Wikimedia Commons · Wrong photo?

How much horsepower does a 7420 have at the PTO?

At the PTO shaft a 7420 has 127.4 hp (95.0 kW), measured on OECD Test 2081.

PTO, measured
127.4 hp
Drawbar, measured (unballasted)
112.5 hp

Sources · OECD test report 2081, 2003; OECD test report 2081, 2003; Traktorenlexikon, “John Deere 7420”

What engine is in a 7420?

A 7420 has a John Deere 6068HRW01, a 6-cylinder 6.79 L engine. Diesel tractors have a John Deere PowrTech 6.068 HRW-01. Diesel tractors have a John Deere PowrTech 6.068 HRW-01.

Engine — 7420 engine specifications
Make & modelJohn Deere 6068HRW01
Cylinders6, liquid-cooledSource 2
Displacement414.2 ci · 6.79 L
Aspirationsupercharged
Max torque414 lb·ft · 561.0 N·m @ 1,398 rpmSource 2
InjectionDirect injectionSource 3On record for 1 of 3 configurations

Source · OECD test report 2081, 2003

How much will a 7420 lift?

Hydraulic and PTO specifications for the 7420 are below.

Hydraulics & PTO — 7420 hydraulics and PTO specifications
SystemClosed centre, load sensingSource 2On record for 1 of 3 configurations
Pump flow31.7 gpm · 120.0 L/minOn record for 1 of 3 configurations
Lift at ends12,125 lb · 5,500 kgOn record for 1 of 3 configurations
Rear PTO540/1000 rpm
PTO shaft35 mm, 6 splines / 35 mm, 21 splinesSource 2

Source · Traktorenlexikon, “John Deere 7420”

What transmission does a 7420 have?

Transmission specifications for the 7420 are below.

Transmission — 7420 transmission specifications
ClutchPedal-operated, hydraulic wet multi-disc clutchOn record for 1 of 3 configurations
BrakesPedal-operated, hydraulic wet disc brake acting on differential side shaftsOn record for 1 of 3 configurations
SteeringHydrostatic John Deere/Danfoss steeringOn record for 1 of 3 configurations
Top speed24.9–31.1 mph · 40–50 km/hOn record for 1 of 3 configurationsthe article lists alternatives

Source · Traktorenlexikon, “John Deere 7420”

How much does a 7420 weigh?

Dimensions for the 7420 are below; no sourced weight is on record yet.

Weights & dimensions — 7420 weights and dimensions
Unladen weight12,899 lb · 5,851 kgOn record for 1 of 3 configurationsA
Maximum permissible mass22,046 lb · 10,000 kgOn record for 1 of 3 configurations
Wheelbase104.3–112.8 in · 2,650–2,865 mmVaries by configuration: 2,650 mm or 2,865 mmOn record for 2 of 3 configurationstwo-wheel-drive versionfour-wheel-drive version
Length176.0 in · 4,471 mmOn record for 1 of 3 configurations
Width96.0–105.7 in · 2,438–2,686 mmOn record for 1 of 3 configurations
Height112.8 in · 2,865 mmOn record for 1 of 3 configurations
Ground clearance16.3–20.5 in · 415–520 mmVaries by configuration: 415 mm or 520 mmOn record for 2 of 3 configurationstwo-wheel-drive versionfour-wheel-drive version
Front track59.4–88.0 in · 1,510–2,235 mmOn record for 1 of 3 configurations
Rear track60.0–100.3 in · 1,524–2,548 mmOn record for 1 of 3 configurations

Source · Traktorenlexikon, “John Deere 7420”

What oil does a 7420 take, and how much?

A 7420 engine takes 20.6 qt (19.5 L). Single source, not independently verified — always confirm against the operator’s manual for your machine.

7420 fluid capacities, grades and service intervals
SystemCapacity
Engine oil20.6 qt · 19.5 LSource: Traktorenlexikon, “John Deere 7420” · single source, not independently verified
Transmission69.7 qt · 66.0 LSource: Traktorenlexikon, “John Deere 7420” · single source, not independently verified
Front axle1.8 qt · 1.7 LSource: Traktorenlexikon, “John Deere 7420” · single source, not independently verified
Cooling system16.4 qt · 15.5 LSource: Traktorenlexikon, “John Deere 7420” · single source, not independently verified

Always confirm against the operator’s manual for your machine before service.

What did OECD measure on Test 2081?

OECD Test 2081 recorded 127.4 hp at the PTO and 112.5 hp at the drawbar. Configuration as printed: “4 WD · PowrQuad Plus - MFWD - 40 km/h”.

Test results — OECD Test 2081, 7420: measured results
PTO power, maximum127.4 hp at 860 PTO rpm · 95.0 kW @ 1,801 engine rpmSource 2
PTO power, rated engine speed116.5 hp at 1,003 PTO rpm · 86.9 kW @ 2,101 engine rpm
PTO power, standard PTO speed116.5 hp at 1,003 PTO rpm · 86.9 kW @ 2,101 engine rpm
Drawbar power, unballasted112.5 hp · 83.9 kW

Source · OECD test report 2081, 2003

How much fuel does a 7420 burn per hour?

Measured on OECD Test 2081 (tested as the 7420 (4 WD)), at each condition the laboratory recorded.

Cost per hour = fuel used per hour × your fuel price (per litre, or per US gallon for the gal/h figure).

Fuel use measured on OECD Test 2081
Test conditionFuel per hour
Maximum PTO powerPTO 95.0 kW (127.4 hp) at 860 rpm25.79 L/h 6.81 gal/h
Rated engine speedPTO 86.9 kW (116.5 hp) at 1,003 rpm25.53 L/h 6.74 gal/h
Standard PTO speedPTO 86.9 kW (116.5 hp) at 1,003 rpm25.53 L/h 6.74 gal/h
75% load, 50% loadNot on record for this test

Source · OECD Test 2081

Which tractors compare with a 7420?

Within 10% of its 127.4 hp measured at the PTO, the same type, and first built within 15 years of it.

Common questions about the John Deere 7420

Is a 7420 two-wheel drive or four-wheel drive?

The John Deere 7420 was offered in two-wheel-drive and four-wheel-drive versions.

What PTO does a 7420 have?

A 7420 has a 540/1000 rpm rear PTO on a 35 mm, 6 splines / 35 mm, 21 splines shaft.

What implements will a 7420 run?

Size PTO implements from the measured 127.4 hp at the shaft.

Sources and how this page was built

Compiled from OECD tractor test report 2081; and Traktorenlexikon, “John Deere 7420”.

Sources checked

14 SEP 2026

Spotted an error?

Sources

Facts taken from these documents, units converted. Numbers beside a figure refer to this list. Licences and attribution

  1. OECD Code 2 test report 2/2 081: John Deere 7420 — Licence not stated by the publisher; facts cited, OECD-2081 · published 2003-09-16 · retrieved 2026-09-14. OECD. Original document
  2. OECD Code 2 test report 2/2 081: John Deere 7420 — Licence not stated by the publisher; facts cited, OECD-2081 · published 2003-09-16 · retrieved 2026-09-14. OECD. Original document
  3. Traktorenlexikon: John Deere 7420 — CC BY-SA 4.0, WIKIBOOKS-TL-106508 · revision 883599. Wikibooks contributors (Traktorenlexikon). Original document