John Deere 8400T
The John Deere 8400T is a tractor produced by John Deere. It is equipped with a 496 ci 8.1 L engine. The listed engine power is 226.73 hp 169.1 kW. Transmission: 16 forward and 4 reverse. Drive type: crawler. Operating weight: 25,000 lbs 11340 kg.
Engine Power
226.73 hp
169.1 kW
Drive & Traction
crawler
Fuel & Capacities
130 gal
492.1 L
Transmission
16 forward and 4 reverse
Operating Weight
25,000 lbs
11340 kg
Overview
 | 1997 - 1999
8000/8000T SeriesAgricultural Crawler tractor
8000/8000T Series
Agricultural Crawler tractor |
|---|
Production | |
|---|---|
Manufacturer | John Deere |
Agricultural Crawler tractor | |
Built in Waterloo, Iowa, USA | |
Variants | |
|---|---|
8400 | wheeled tractor |
8400T | crawler tractor |
John Deere 8400T Engine | |
|---|---|
John Deere 8.1L 6-cyl | |
Engine details ...  |
John Deere 8400T Transmission | |
|---|---|
16-speed full powershift | |
Transmission details ...  |
John Deere 8400T Power | |
|---|---|
PTO (claimed) | 225 hp
167.8 kW |
Drawbar (tested) | 195.75 hp
146.0 kW |
PTO (tested) | 255.16 hp
190.3 kW |
Performance test details ...  | |
Mechanical | |
|---|---|
Drive | crawler |
Steering | hydrostatic power |
Hydraulic wet disc brakes | |
CommandView Cab standard | |
Capacity | |
|---|---|
Fuel | 130 gal
492.1 L |
Hydraulic system | 65 gal
246.0 L |
Hydraulics | |
|---|---|
Type | pressure/flow compensated (PFC) |
Capacity | 65 gal
246.0 L |
Pressure | 2900 psi
200.0 bar |
Valves | 3 to 5 |
Pump flow | 30 gpm
113.6 lpm |
38 gpm (optional)
143.8 lpm | |
Tractor hitch | |
|---|---|
Rear Type | III/IIIN |
Rear lift | 15,650 lbs
7098 kg |
Power Take-off (PTO) | |
|---|---|
Rear PTO | independent |
Rear PTO Type | 1000 |
Dimensions & Tracks | |
|---|---|
Wheelbase | 89 inches
226 cm |
Weight | 25,000 lbs
11340 kg |
16-inch tracks | |
Full dimensions and tracks ...  | |
Electrical | |
|---|---|
Ground | negative |
Charging system | alternator |
Charging amps | 140 |
Batteries | 2 |
Battery volts | 12 |
References | |
|---|---|
 | |
8000/8000T Series Tractors Product Information Handbook published in 1998, by John Deere |
Engine
Engine Detail — 496 ci / 8.1 L
Manufacturer | John Deere |
Configuration | turbocharged intercooled, 6-cylinder, liquid-cooled |
Displacement | 496 ci
8.1 L |
Bore/Stroke | 4.56x5.06 inches
116 x 129 mm |
Air cleaner | two paper elements |
Compression | 16.5:1 |
Rated RPM | 2200 |
Starter volts | 12 |
Oil capacity | 22.7 qts
21.5 L |
Coolant capacity | 35.9 qts
34.0 L |
Transmission
Transmission — 16 forward and 4 reverse full powershift
Type | full powershift |
Gears | 16 forward and 4 reverse |
Oil capacity | 260 qts
246.1 L |
 | |
Dimensions
John Deere 8400T Tracks | |
|---|---|
Width | 16 inches
40 cm |
Width | 24 inches
60 cm |
Width | 30 inches
76 cm |
Dimensions | |
|---|---|
Wheelbase | 89 inches
226 cm |
Length | 207 inches
525 cm |
219.6 inches (with front weights)
557 cm | |
Width | 103.7 inches (minimum)
263 cm |
Height (cab) | 122.9 inches
312 cm |
Operating weight | 25,000 lbs
11340 kg |
Ballasted weight | 27,330 lbs
12396 kg |
Ground clearance | 17.7 inches (drawbar)
44 cm |
21.7 inches (rear axle)
55 cm | |
Tests
OCED Tractor Test 1747 | |
|---|---|
Diesel 16-speed crawler
April 8 - May 1, 1998
Link: OCED Tractor Test 1747 file | |
PTO performance | |
Max power | 255.16 hp
190.3 kW |
Fuel use | 13.6 gal/hour
51.5 l/hour |
Power at rated engine speed | 226.73 hp
169.1 kW |
Fuel use | 13.0 gal/hour
49.2 l/hour |
Drawbar performance | |
Max power | 195.75 hp
146.0 kW |
Fuel use | 13.0 gal/hour
49.2 l/hour |
Gear 9 used for power test. | |
Max pull | 27,993 lbs
12697 kg |
Gear 3 used for pull test. | |
Recommended Implements & Sizing Guide
Engineering recommendations for John Deere 8400T based on its 226.73 HP power envelope and ASAE agricultural standards.
| Implement & Operation | Recommended Size | Workload Rating | Engineering Notes |
|---|---|---|---|
Moldboard PlowPrimary Tillage | 8+ Bottom On-Land Hitch8+ 铧重型机外牵引犁 | Commercial / Field Scale | High horsepower articulated/4WD field plowing. |
Rotary Cutter / MowerMowing & Clearing | 15 to 20 ft Batwing4.6 - 6.1 m 宽幅折叠翼 | Commercial / Field Scale | Large commercial field and roadside mowing operations. |
Rotary TillerSeedbed Prep | 90 to 120 in Heavy Duty230 - 300 cm 重型旋耕机 | Commercial / Field Scale | Deep intensive seedbed preparation for commercial row crops. |
Disc HarrowSecondary Tillage | 24 to 36 ft Heavy Duty Field Disc7.3 - 11.0 m 超宽重型整地耙 | Commercial / Field Scale | Broad-acre grain tillage for high-drawbar tractors. |
Hay BalerHay & Forage | Large Square Baler (3x4 or 4x4)大方捆商用打捆机 (1.2x1.2 m) | Commercial / Field Scale | High-capacity commercial forage harvesting (1000 RPM PTO). |
Sizing & Soil Condition NoteActual implement sizing varies depending on local soil conditions (heavy clay vs sandy loam), field slope, and operating speed. Heavy tillage implements may require front ballast weights and wheel weights.
Fluids, Capacities & Working Autonomy
Standard fluid requirements, service intervals, and continuous runtime estimates for John Deere 8400T.
Estimated Continuous Field Runtime: 11 hrs
Approximately 11 hours of continuous field operation at ~75% rated power on a full tank (130 gal / 492.1 L).
Estimated 75% Load Fuel Burn~11.8 gal/hr (44.6 L/hr)
Engine Crankcase Oil
SAE 15W-40 (Heavy Duty Diesel)
Standard Spec: API CK-4 / CJ-4 Heavy Duty
Service Interval: 150 – 250 Hours
Transmission & Hydraulic System
UTTO (Universal Tractor Transmission Oil)
Standard Spec: ISO VG 46 / 68 (Wet Brake & Trans Compatible)
Service Interval: 600 – 1000 Hours
Engine Cooling System
50/50 Ethylene Glycol Pre-mix
Standard Spec: ASTM D6210 / Heavy-Duty OAT Antifreeze
Service Interval: 2 Years / 1500 Hours
John Deere 8400T Specification Unit Converter
Convert power, fluid capacities, and operating weights between metric and imperial standards for John Deere 8400T.
Converted Equivalents:
Horsepower (HP)226.7 hp
Kilowatts (kW)169.1 kW
Metric Horsepower (PS / CV)229.9 PS
Direct Competitor Comparison
Compare John Deere 8400T against same-era industry alternatives in the same horsepower class.
Current Model
John Deere
John Deere 8400T
Engine Power:226.73 hp
169.1 kW
★ Baseline Reference
International HarvesterMarket Competitor
International Harvester 5488
Engine Power:205.6
Production Years:1981 - 1985
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