- Rigid chassis
- WhichTractor size: Utility
- Lab tested ×1
- 2002–2007
It sits on the utility/standard-size boundary, so either size is a fair description. 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 6620 specs: hp, weight, years
John Deere PowrTech 6.068 HLA-070/V2-DE or 6.068 HL-471/HP six-cylinder diesel or John Deere 6068HLA70 (DD20011). The manufacturer claimed 123 horsepower. The only laboratory test on record is of one version: OECD Test 2038 measured 117.1 hp at the PTO of the 6620 (4 WD). Compared at the engine's rated speed, where the brochure figure is quoted, the shaft gave 109.8 hp — 11% below the claim.
Engine power, claimed · gross or net not stated
123 hp
92 kW as stated by the source
No lab test on file
Claimed · standard not stated by the source
Source · Traktorenlexikon, “John Deere 6620”, claimed
This is the maker’s own figure, measured at the engine. Power at the PTO is lower — by how much, for this machine, nobody has measured.
- Weight
- 13,040 lb
- 3-point lift
- 16,755 lb
- Top speed
- 24.9–31.1 mph
John Deere 6620 specs: key facts
The John Deere 6620 was built from 2002 to 2007.
Only one version of the John Deere 6620 has a laboratory test on record: the 6620 (4 WD) produced 87.3 kW (117.1 hp) at the PTO, measured on OECD Test 2038.Source 1
The John Deere 6620 has a claimed engine power (gross or net not stated) of 92 kW (123 hp); it has no measured PTO figure.
The John Deere 6620 is four-wheel drive (4WD).Source 1
The John Deere 6620 has a John Deere PowrTech 6.068 HLA-070/V2-DE or 6.068 HL-471/HP engine, a 6-cylinder 6.79 L diesel unit.
The John Deere 6620 weighs 5,915 kg (13,040 lb) unladen.
The John Deere 6620 has an independent rear PTO running at 540E/540/1000 rpm.
The three-point hitch of the John Deere 6620 lifts 7,600 kg (16,755 lb) at the lower-link ends.
Source · Traktorenlexikon, “John Deere 6620”
How much horsepower does a 6620 have?
The only laboratory test on record is of one version. OECD Test 2038 measured 117.1 hp at the PTO of the 6620 (4 WD). For the 6620 as a whole the figure is the 123 hp claimed for the engine, which is not power at the shaft.
Sources · Traktorenlexikon, “John Deere 6620”; OECD test report 2038, 2003
What engine is in a 6620?
A 6620 has a John Deere PowrTech 6.068 HLA-070/V2-DE or 6.068 HL-471/HP, a 6-cylinder 6.79 L diesel engine. 6620 (4 WD) tractors have a John Deere 6068HLA70 (DD20011).
| Make & model | John Deere PowrTech 6.068 HLA-070/V2-DE or 6.068 HL-471/HP |
|---|---|
| Cylinders | 6, liquid-cooled |
| Displacement | 414.2 ci · 6.79 L |
| Max torque | 353 lb·ft · 479.0 N·m @ 1,501 rpmSource 1 |
| Electrical system | 12 V |
Source · Traktorenlexikon, “John Deere 6620”
How much will a 6620 lift?
A 6620 lifts 16,755 lb (7,600 kg) at the lower-link ends.
| System | Closed centre, load sensingSource 1 |
|---|---|
| Pressure | 3,017–3,220 psi · 208–222 bar |
| Lift at ends | 16,755 lb · 7,600 kg |
| Rear PTO | Independent, engine-driven, 540E/540/1000 rpmEngages under load |
| PTO shaft | 1 3/8"- 6 splines or 1 3/8"- 21 part |
Source · Traktorenlexikon, “John Deere 6620”
What transmission does a 6620 have?
Transmission specifications for the 6620 are below.
| Steering | Hydrostatic Danfoss steering |
|---|---|
| Top speed | 24.9–31.1 mph · 40–50 km/hthe article lists alternatives |
Source · Traktorenlexikon, “John Deere 6620”
How much does a 6620 weigh?
A 6620 weighs 13,040 lb (5,915 kg) unladen.
| Unladen weight | 13,040 lb · 5,915 kg |
|---|---|
| Maximum permissible mass | 20,944 lb · 9,500 kg |
| Maximum front axle load | 9,921 lb · 4,500 kg |
| Maximum rear axle load | 15,212 lb · 6,900 kg |
| Wheelbase | 104.3 in · 2,650 mm |
| Length | 185.2 in · 4,705 mm |
| Width | 96.3 in · 2,445 mm |
| Height | 113.2 in · 2,875 mm |
| Ground clearance | 18.1 in · 460 mm |
| Front track | 71.9 in · 1,827 mm |
| Rear track | 71.5 in · 1,815 mm |
Source · Traktorenlexikon, “John Deere 6620”
What oil does a 6620 take, and how much?
A 6620 engine takes 20.6 qt (19.5 L). Single source, not independently verified — always confirm against the operator’s manual for your machine.
| System | Capacity |
|---|---|
| Engine oil | 20.6 qt · 19.5 LSource: Traktorenlexikon, “John Deere 6620” · single source, not independently verified |
| Transmission | 66.6 qt · 63.0 LSource: Traktorenlexikon, “John Deere 6620” · single source, not independently verified |
| Front axle | 8.5 qt · 8.0 LSource: Traktorenlexikon, “John Deere 6620” · single source, not independently verified |
| Cooling system | 29.6 qt · 28.0 LSource: Traktorenlexikon, “John Deere 6620” · single source, not independently verified |
Always confirm against the operator’s manual for your machine before service.
How much fuel does a 6620 burn per hour?
Measured on OECD Test 2038 (tested as the 6620 (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).
| Test condition | Fuel per hour |
|---|---|
| Maximum PTO powerPTO 87.3 kW (117.1 hp) at 906 rpm | 24.64 L/h 6.51 gal/h |
| Rated engine speedPTO 81.9 kW (109.8 hp) at 1,042 rpm | 25.24 L/h 6.67 gal/h |
| Standard PTO speedPTO 86.0 kW (115.3 hp) at 1,000 rpm | 25.29 L/h 6.68 gal/h |
| 75% load, 50% load | Not on record for this test |
Source · OECD Test 2038
Which tractors compare with a 6620?
Within 10% of its 123 hp of claimed engine power, the same type, and first built within 15 years of it.
- Renault Ares 656 RZ123 hp engine, claimed · 2002–2005Side by side with the 6620 →
- Deutz-Fahr Agrotron TTV 1130123.4 hp engine, claimed · 2001–2006Side by side with the 6620 →
- John Deere 7320 (A)123 hp engine, claimed · 2003–2007Side by side with the 6620 →
- Massey Ferguson 6470A123 hp engine, claimed · 2003–2012Side by side with the 6620 →
- Massey Ferguson 6280 (A)123 hp engine, claimed · 1999–2003Side by side with the 6620 →
- John Deere 6430 Premium123 hp engine, claimed · 2006–2011Side by side with the 6620 →
Common questions about the John Deere 6620
Is a 6620 two-wheel drive or four-wheel drive?
The John Deere 6620 is four-wheel drive (4WD).
What PTO does a 6620 have?
A 6620 has a independent 540E/540/1000 rpm rear PTO on a 1 3/8"- 6 splines or 1 3/8"- 21 part shaft.
Sources and how this page was built
Compiled from OECD tractor test report 2038; and Traktorenlexikon, “John Deere 6620”.
Sources
Facts taken from these documents, units converted. Numbers beside a figure refer to this list. Licences and attribution
- OECD Code 2 test report 2/2 038: John Deere 6620 — Licence not stated by the publisher; facts cited, OECD-2038 · published 2003-01-22 · retrieved 2026-09-14. OECD; testing station DLG, Gross-Umstadt, Germany. Original document
- Traktorenlexikon: John Deere 6620 — CC BY-SA 4.0, WIKIBOOKS-TL-51301 · revision 1027751. Wikibooks contributors (Traktorenlexikon). Original document