- WhichTractor size: Standard-size
- Lab tested ×1
- 2002–2005
WhichTractor size, not the maker’s category
John Deere 8120 Engine specifications
18 engine values on record for the 8120.
Engine power, claimed · gross or net not stated
197.4 hp
147.2 kW as stated by the source
Not independently tested
Claimed · standard not stated by the source
Source · Traktorenlexikon, “John Deere 8120”, claimed
What engine is in the diesel 8120?
The diesel 8120 has a John Deere-PowerTech 6.081 HRW-217, a 6-cylinder 8.13 L diesel engine. Fitted to 8120 (2WD), 8120 (4WD).
| Make & model | John Deere-PowerTech 6.081 HRW-217 |
|---|---|
| Fuel | Diesel |
| Cylinders | 6 |
| Displacement | 496.4 ci · 8.13 L |
| Cooling | Liquid-cooled |
| Maximum torque | 632 lb·ft · 857 N·m |
| Maximum torque speed | 1,400 rpmSource 2 |
| Cylinders | 6 |
| Displacement | 8.6 qt · 8.1 L |
| Bore | 4.6 in · 115.8 mm |
| Stroke | 5.1 in · 128.5 mm |
| Rated engine speed | 2,200 rpm |
| Torque rise | 53.6 % |
Source · Traktorenlexikon, “John Deere 8120”
What engine is in an 8120?
An 8120 has a John Deere 6081HRW23, a 6-cylinder 8.13 L engine. Fitted to 8120 (4 WD).
| Make & model | John Deere 6081HRW23 |
|---|---|
| Cylinders | 6 |
| Displacement | 496.4 ci · 8.13 L |
| Aspiration | Supercharged |
Source · OECD test report 2083, 2003
How much fuel does an 8120 use?
On OECD Test 2083, the 8120 used 10.48 gal/h (39.7 L/h) at maximum power.
| Fuel consumption, at maximum power | 10.48 gal/h · 39.7 L/hSource 2 |
|---|---|
| Fuel consumption, at rated engine speed | 10.11 gal/h · 38.3 L/hSource 2 |
| Fuel consumption, at standard PTO speed | 10.11 gal/h · 38.3 L/hSource 2 |
| Engine speed, at maximum power | 1,900 rpmSource 2 |
| Engine speed, at rated engine speed | 2,201 rpmSource 2 |
| Engine speed, at standard PTO speed | 2,201 rpmSource 2 |
| Maximum torque | 632 lb·ft · 857.0 N·mSource 2 |
| Torque rise | 53.9%Source 2 |
Source · OECD test report 2083, 2003
Where this page comes from
18 engine values from Traktorenlexikon, “John Deere 8120”; and OECD test report 2083, 2003.
Sources
Facts taken from these documents, units converted. Numbers beside a figure refer to this list. Licences and attribution
- OECD Code 2 test report 2/2 083: John Deere 8120 — Licence not stated by the publisher; facts cited, OECD-2083 · published 2003-09-23 · retrieved 2026-09-14. OECD. Original document
- OECD Code 2 test report 2/2 083: John Deere 8120 — Licence not stated by the publisher; facts cited, OECD-2083 · published 2003-09-23 · retrieved 2026-09-14. OECD. Original document
- Traktorenlexikon: John Deere 8120 — CC BY-SA 4.0, WIKIBOOKS-TL-9668 · revision 880785. Wikibooks contributors (Traktorenlexikon). Original document