Crawler tractorsSpec sheet
John Deere 8400T
The John Deere 8400T is a powerful crawler tractor made from 1997 to 1999. It has tracks instead of wheels, which helps it move well on tough ground. The tractor is big, measuring 207 inches long, 103.7 inches wide, and 122.9 inches tall. It weighs a hefty 25,000 pounds, making it a strong machine for heavy farm work. Under the hood, the 8400T has a John Deere diesel engine with 6 cylinders. This engine is turbocharged and intercooled, giving it extra power. It can produce 226.73 horsepower at 2000 rpm. The tractor has a full powershift transmission with 16 forward gears and 4 reverse gears, allowing for smooth speed changes. It also has a three-point hitch at the back that can lift up to 15,650 pounds, which is great for attaching and using big farm tools. The tractor has a cab for the driver, making it comfortable to use in different weather conditions.
ManufacturerJohn DeerePower226.73 hp(169.1 kW)Class150–300 HP tractors →Engine6-cylinderTransmissionFull powershift
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Key specifications
- Category
- Crawler
- Engine power
- 227hp
- Operating weight
- 25,000 lb
- Transmission
- Full powershift
Category comparison
8400T compared with its category
vs. Crawler medianDistribution
Engine Power (hp)
All recorded Crawler tractors
226.73 hp · 54th
This model
18
Median 200 hp
508
This modelCrawler tractorsMediann = 142
The 8400T ranks at the 54th percentile for engine power among recorded crawler tractors.
Overview
About the John Deere 8400T
The John Deere 8400T is a powerful crawler tractor made from 1997 to 1999. It has tracks instead of wheels, which helps it move well on tough ground. The tractor is big, measuring 207 inches long, 103.7 inches wide, and 122.9 inches tall. It weighs a hefty 25,000 pounds, making it a strong machine for heavy farm work. Under the hood, the 8400T has a John Deere diesel engine with 6 cylinders. This engine is turbocharged and intercooled, giving it extra power. It can produce 226.73 horsepower at 2000 rpm. The tractor has a full powershift transmission with 16 forward gears and 4 reverse gears, allowing for smooth speed changes. It also has a three-point hitch at the back that can lift up to 15,650 pounds, which is great for attaching and using big farm tools. The tractor has a cab for the driver, making it comfortable to use in different weather conditions.
Full specifications
Recorded specifications
General
| Manufacturer | John Deere |
|---|---|
| Model | 8400T |
| Category | Crawler tractor |
| Type | Crawler |
| Years built | 1997–1999 |
| Operating weight | 25,000lb(11,340 kg) |
Engine
| Make | John Deere |
|---|---|
| Model | Serial No.*RG6081 H040198* |
| Power | 226.73hp(169.1 kW) |
| Cylinders | 6 |
| Displacement | 496ci(8.13 L) |
| Bore | 4.57in(116.1 mm) |
| Stroke | 5.08in(129 mm) |
Transmission
| Type | Full powershift |
|---|---|
| Forward gears | 16 |
| Reverse gears | 4 |
Chassis & drive
| Chassis | Crawler |
|---|---|
| Drive | Track |
| Steering | Hydrostatic power |
| Brakes | Hydraulic wet disc |
| Cab | Cab |
Hydraulics
| Type | Closed center pressure-flow compensated (PFC) |
|---|
Power take-off
| Rear PTO | Independent |
|---|---|
| PTO speed | 1,000rpm |
Dimensions
| Length | 207in(5,258 mm) |
|---|---|
| Width | 103.7in(2,634 mm) |
| Height | 122.9in(3,122 mm) |
| Operating weight | 25,000lb(11,340 kg) |
Capacities
| Cooling system | 8.98gal(33.99 L) |
|---|
Closest alternatives
8400T compared with the nearest models by horsepower
Among crawler tractors, the John Deere 8300T and the John Deere 8230T are closest to the John Deere 8400T in rated horsepower. The John Deere 8300T is rated 0.5 hp lower at almost the same operating weight. The John Deere 8230T makes 5.8 hp more and weighs 2,250 lb more. Of the 3 models, the 8400T has the lowest weight per horsepower at 110 lb per hp.
| Spec | John Deere 8400T | John Deere 8300T | John Deere 8230T |
|---|---|---|---|
| Engine power | 226.7 hp169.1 kW | 226.2 hp168.7 kW | 232.6 hp173.4 kW |
| Operating weight | 25,000 lb11,340 kg | 25,010 lb11,344 kg | 27,250 lb12,360 kg |
| Weight per hp | 110 lb/hp67 kg/kW | 111 lb/hp67 kg/kW | 117 lb/hp71 kg/kW |
| Displacement | 496 ci8.13 L | 496 ci8.13 L | 548 ci8.98 L |
| Cylinders | 6 | 6 | 6 |
| Transmission | Full powershift | Selective gear fixed ratio with full range operator-controlled powershift | selective gear fixed ratio with full range operator controlled power shift |
| Drive | Track | Track | Track |
Calculators
Calculators for the 8400T
PTO power
About 188 to 204 PTO hp
Estimated from the 226.73 hp engine rating. The calculator also estimates drawbar power by surface.
Implement sizing
Implements a 226.73 hp tractor can run
Maximum size is about a 27 ft rotary cutter or a 23 ft tiller. The calculator also sizes discs, plows and balers.
Ballast
128 lb per PTO hp as listed
The calculator gives the target weight and front/rear split for each job.
Units
226.73 hp is 169.1 kW
The converter gives kW and metric PS values, as used on European spec sheets.
Category medians
8400T vs. Crawler median
John Deere 8400T compared with other Crawler tractors
| Spec | This model | Crawler median | Difference | Percentile |
|---|---|---|---|---|
| Engine Power | 227 hp | 200 hp | +13% | 54th |
| Engine Displacement | 496 ci | 468 ci | +6% | 54th |
| Cylinders | 6 | 6 | at median | 50th |
| Forward Gears | 16 | 10 | +60% | 69th |
| Operating Weight | 25,000 lb | 23,320 lb | +7% | 54th |
| Length | 207 in | 146 in | +42% | 70th |
| Width | 104 in | 79.5 in | +30% | 76th |
| Height | 123 in | 90.6 in | +36% | 69th |
Medians and percentiles are calculated from the crawler tractors in the database that have a recorded value for each specification (sample size 134–192 models).
Same manufacturer
Other John Deere models
Other manufacturers
Models with similar horsepower
FAQ
Frequently asked questions
When was the John Deere 8400T made?
The John Deere 8400T was manufactured from 1997 to 1999.
What three-point hitch category does the John Deere 8400T use?
The John Deere 8400T has a Category Category 3 three-point hitch rated to lift 15,650 lb.
What is the engine power output of the John Deere 8400T?
Rated engine output for the John Deere 8400T is 226.73 hp, delivered by a 6-cylinder engine. The engine displaces 496 ci.
What is the operating weight of the John Deere 8400T?
The John Deere 8400T has an operating weight of about 25,000 lb.
Which transmission does the John Deere 8400T use?
The John Deere 8400T is equipped with a Full powershift transmission with 16 forward gears.
What hydraulics does the John Deere 8400T have?
The John Deere 8400T uses a Closed center pressure-flow compensated (PFC) hydraulic system.
How do I maintain a John Deere 8400T?
Routine service for the John Deere 8400T covers engine oil and filter changes, hydraulic and coolant level checks, air filter cleaning, and scheduled inspections. Refer to the manufacturer's maintenance schedule for exact intervals.