- WhichTractor size: High-power
- Lab tested ×1
- 1997–1998
It was ranked on an engine power figure whose source does not say gross or net. 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 8400T specs: hp, weight, years
John Deere-PowerTech 6.081 HRW-03 six-cylinder diesel or John Deere 6081HRW03. The manufacturer claimed 256.7 horsepower. The only laboratory test on record is of one version: OECD Test 1783 measured 255.2 hp at the PTO of the 8400T (Rubber tracklaying tractor). Compared at the engine's rated speed, where the brochure figure is quoted, the shaft gave 226.8 hp — 11.7% below the claim.
Engine power, claimed · gross or net not stated
256.7 hp
191.4 kW as stated by the source
No lab test on file
Claimed · standard not stated by the source
Source · Traktorenlexikon, “John Deere 8400T”, 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
- 25,000 lb
- 3-point lift
- 15,763 lb
- Hyd. flow
- 31.0 gpm
- Top speed
- 18.6 mph
John Deere 8400T specs: key facts
The John Deere 8400T was built from 1997 to 1998.
Only one version of the John Deere 8400T has a laboratory test on record: the 8400T (Rubber tracklaying tractor) produced 190.3 kW (255.2 hp) at the PTO, measured on OECD Test 1783.Source 1
The John Deere 8400T has a claimed engine power (gross or net not stated) of 191.4 kW (256.7 hp); it has no measured PTO figure.
The John Deere 8400T is a tracked machine.Source 1
The John Deere 8400T has a John Deere-PowerTech 6.081 HRW-03 engine, a 6-cylinder 8.13 L diesel unit.Source 2
The John Deere 8400T weighs 11,340 kg (25,000 lb) unladen.
The John Deere 8400T has an independent rear PTO running at 1000 rpm.
The three-point hitch of the John Deere 8400T lifts 7,150 kg (15,763 lb) at the lower-link ends.
The hydraulic pump of the John Deere 8400T delivers 117.3 L/min (31.0 gpm).
Source · Traktorenlexikon, “John Deere 8400T”
How much horsepower does an 8400T have?
The only laboratory test on record is of one version. OECD Test 1783 measured 255.2 hp at the PTO of the 8400T (Rubber tracklaying tractor). For the 8400T as a whole the figure is the 256.7 hp claimed for the engine, which is not power at the shaft.
Sources · Traktorenlexikon, “John Deere 8400T”; OECD test report 1783, 1998
What engine is in an 8400T?
An 8400T has a John Deere-PowerTech 6.081 HRW-03, a 6-cylinder 8.13 L diesel engine. 8400T (Rubber tracklaying tractor) tractors have a John Deere 6081HRW03.
| Make & model | John Deere-PowerTech 6.081 HRW-03 |
|---|---|
| Cylinders | 6, liquid-cooledSource 3 |
| Displacement | 496.2 ci · 8.13 L |
| Max torque | 795 lb·ft · 1,078 N·m @ 1,200 rpmSource 3 |
| Electrical system | 12 VSource 3 |
Source · Traktorenlexikon, “John Deere 8200T”
How much will an 8400T lift, and what is its hydraulic flow?
An 8400T lifts 15,763 lb (7,150 kg) at the lower-link ends of its Category 3 three-point hitch.
| System | Closed centre, load sensingSource 1 |
|---|---|
| Pump flow | 31.0 gpm · 117.3 L/min |
| Hitch category | Category 3 |
| Lift at ends | 15,763 lb · 7,150 kg |
| Rear PTO | Independent, engine-driven, 1000 rpmEngages under load |
| PTO shaft | 1 3/8"- 20teilig |
Source · Traktorenlexikon, “John Deere 8400T”
What transmission does an 8400T have?
Transmission specifications for the 8400T are below.
| Clutch | Pedal operated hydraulic wet John Deere multi-disc clutch |
|---|---|
| Brakes | Pedal operated hydraulic wet VICKERS disc brake |
| Steering | Electro-hydraulically operated hydrostatic JOHN DEERE steering |
| Top speed | 18.6 mph · 30 km/h |
Source · Traktorenlexikon, “John Deere 8400T”
How much does an 8400T weigh?
An 8400T weighs 25,000 lb (11,340 kg) unladen.
| Unladen weight | 25,000 lb · 11,340 kg |
|---|---|
| Wheelbase | 89.0 in · 2,260 mm |
| Length | 216.0 in · 5,487 mm |
| Width | 102.0–113.0 in · 2,591–2,870 mm |
| Height | 123.4 in · 3,135 mm |
| Ground clearance | 14.2 in · 360 mm |
| Front track | 66.0–88.0 in · 1,676–2,235 mmWikibooks gives one track for both axles |
| Rear track | 66.0–88.0 in · 1,676–2,235 mmWikibooks gives one track for both axles |
Source · Traktorenlexikon, “John Deere 8400T”
What oil does an 8400T take, and how much?
An 8400T engine takes 29.6 qt (28.0 L). Single source, not independently verified — always confirm against the operator’s manual for your machine.
| System | Capacity |
|---|---|
| Engine oil | 29.6 qt · 28.0 LSource: Traktorenlexikon, “John Deere 8400T” · single source, not independently verified |
| Hydraulic | 259.9 qt · 246.0 LSource: Traktorenlexikon, “John Deere 8400T” · single source, not independently verified |
| Cooling system | 35.9 qt · 34.0 LSource: Traktorenlexikon, “John Deere 8400T” · single source, not independently verified |
Always confirm against the operator’s manual for your machine before service.
How much fuel does an 8400T burn per hour?
Measured on OECD Test 1783 (tested as the 8400T (Rubber tracklaying tractor)), 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 190.3 kW (255.2 hp) at 916 rpm | 51.47 L/h 13.60 gal/h |
| Rated engine speedPTO 169.1 kW (226.8 hp) at 1,007 rpm | 49.21 L/h 13.00 gal/h |
| Standard PTO speedPTO 169.1 kW (226.8 hp) at 1,007 rpm | 49.21 L/h 13.00 gal/h |
| 75% load, 50% load | Not on record for this test |
Source · OECD Test 1783
Which tractors compare with an 8400T?
Within 10% of its 256.7 hp of claimed engine power, the same type, and first built within 15 years of it.
- Deutz-Fahr Agrotron 260256.7 hp engine, claimed · 1998–2000Side by side with the 8400T →
- Massey Ferguson 8180A256.7 hp engine, claimed · 1998–1999Side by side with the 8400T →
- Massey Ferguson 8280A256.7 hp engine, claimed · 1999–2002Side by side with the 8400T →
- John Deere 8400256.7 hp engine, claimed · 1994–1998Side by side with the 8400T →
- Deutz-Fahr Agrotron 260 MK3256.7 hp engine, claimed · 2001–2003Side by side with the 8400T →
- Massey Ferguson 8470256.7 hp engine, claimed · 2004–2008Side by side with the 8400T →
Common questions about the John Deere 8400T
Is an 8400T two-wheel drive or four-wheel drive?
The John Deere 8400T is a tracked machine.
What PTO does an 8400T have?
An 8400T has a independent 1000 rpm rear PTO on a 1 3/8"- 20teilig shaft.
Sources and how this page was built
Compiled from OECD tractor test report 1783; Traktorenlexikon, “John Deere 8200T”; and Traktorenlexikon, “John Deere 8400T”.
Sources
Facts taken from these documents, units converted. Numbers beside a figure refer to this list. Licences and attribution
- OECD Code 2 test report 2/1 783: John Deere 8400T — Licence not stated by the publisher; facts cited, OECD-1783 · published 1998-09-25 · retrieved 2026-09-14. OECD. Original document
- Traktorenlexikon: John Deere 8200T — CC BY-SA 4.0, WIKIBOOKS-TL-106320 · revision 876392. Wikibooks contributors (Traktorenlexikon). Original document
- Traktorenlexikon: John Deere 8400T — CC BY-SA 4.0, WIKIBOOKS-TL-106321 · revision 1056356. Wikibooks contributors (Traktorenlexikon). Original document