Utility tractorsSpec sheet
Big Bud 400/20
The Big Bud 400/20 is a powerful utility tractor built for tough jobs. It has a strong 400 hp engine made by Detroit Diesel. This engine is very big compared to most tractors, with 8 cylinders and 736 cubic inches of space inside. The tractor runs on diesel fuel and has a turbocharger to make it even stronger. This tractor is big and tough. It's over 22 feet long and 10 feet wide. It has four-wheel drive and can turn in the middle, which helps it move in tight spaces. The Big Bud 400/20 has a cab for the driver to sit in, keeping them safe and comfortable. It has 12 gears for going forward and 2 for going backward, giving the driver lots of control. The tractor also has big tires, with the front ones being wider than the back ones. Big Bud is known for making very large tractors, and the 400/20 shows this. It has a very high engine power compared to most tractors. The tractor has an electric starter to make it easy to turn on. It also has a special hydraulic system that helps it lift and move heavy things. With its size and power, the Big Bud 400/20 is ready for big farming jobs.
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Key specifications
- Category
- Utility
- Engine power
- 400hp
- Transmission
- Gear
Category comparison
400/20 compared with its category
vs. Utility medianDistribution
Engine Power (hp)
All recorded Utility tractors
400 hp · 98th
This model
9
Median 55 hp
177
400
This modelUtility tractorsMediann = 5,383
The 400/20 ranks at the 98th percentile for engine power among recorded utility tractors.
Overview
About the Big Bud 400/20
The Big Bud 400/20 is a powerful utility tractor built for tough jobs. It has a strong 400 hp engine made by Detroit Diesel. This engine is very big compared to most tractors, with 8 cylinders and 736 cubic inches of space inside. The tractor runs on diesel fuel and has a turbocharger to make it even stronger. This tractor is big and tough. It's over 22 feet long and 10 feet wide. It has four-wheel drive and can turn in the middle, which helps it move in tight spaces. The Big Bud 400/20 has a cab for the driver to sit in, keeping them safe and comfortable. It has 12 gears for going forward and 2 for going backward, giving the driver lots of control. The tractor also has big tires, with the front ones being wider than the back ones. Big Bud is known for making very large tractors, and the 400/20 shows this. It has a very high engine power compared to most tractors. The tractor has an electric starter to make it easy to turn on. It also has a special hydraulic system that helps it lift and move heavy things. With its size and power, the Big Bud 400/20 is ready for big farming jobs.
Full specifications
Recorded specifications
General
| Manufacturer | Big Bud |
|---|---|
| Model | 400/20 |
| Category | Utility tractor |
| Type | 4x4 articulated 4WD |
Engine
| Make | Detroit Diesel |
|---|---|
| Model | 8V-92T |
| Power | 400hp(298.3 kW) |
| Cylinders | 8 |
| Displacement | 736ci(12.06 L) |
| Bore | 4.84in(122.9 mm) |
| Stroke | 5in(127 mm) |
Transmission
| Type | Gear |
|---|---|
| Forward gears | 12 |
| Reverse gears | 2 |
Chassis & drive
| Chassis | 4x4 articulated 4WD |
|---|---|
| Drive | 4WD |
| Steering | Articulated power |
| Cab | Cab |
Hydraulics
| Type | Closed center load sensing |
|---|
Dimensions
| Length | 267.6in(6,797 mm) |
|---|---|
| Width | 120in(3,048 mm) |
Closest alternatives
400/20 compared with the nearest models by horsepower
The closest utility models to the Big Bud 400/20 by rated horsepower are the Big Bud 400 and the Big Bud 400/30. The Big Bud 400 matches it on rated power. The Big Bud 400/30 matches it on rated power.
| Spec | Big Bud 400/20 | Big Bud 400 | Big Bud 400/30 |
|---|---|---|---|
| Engine power | 400 hp298.3 kW | 400 hp298.3 kW | 400 hp298.3 kW |
| Operating weight | - | 43,700 lb19,822 kg | 40,000 lb18,144 kg |
| Weight per hp | - | 109 lb/hp66 kg/kW | 100 lb/hp61 kg/kW |
| Displacement | 736 ci12.06 L | 893 ci14.63 L | 736 ci12.06 L |
| Cylinders | 8 | 6 | 8 |
| Transmission | Gear | Full power shift | Power Shift |
| Drive | 4WD | 4WD | Four-wheel Drive (4WD) |
Calculators
Calculators for the 400/20
PTO power
About 332 to 360 PTO hp
Estimated from the 400 hp engine rating. The calculator also estimates drawbar power by surface.
Implement sizing
Implements a 400 hp tractor can run
Maximum size is about a 47.5 ft rotary cutter or a 40.5 ft tiller. The calculator also sizes discs, plows and balers.
Units
400 hp is 298.3 kW
The converter gives kW and metric PS values, as used on European spec sheets.
Category medians
400/20 vs. Utility median
Big Bud 400/20 compared with other Utility tractors
| Spec | This model | Utility median | Difference | Percentile |
|---|---|---|---|---|
| Engine Power | 400 hp | 55 hp | +627% | 98th |
| Engine Displacement | 736 ci | 183 ci | +302% | 96th |
| Cylinders | 8 | 4 | +100% | 99th |
| Forward Gears | 12 | 12 | at median | 50th |
| Length | 268 in | 137 in | +96% | 98th |
| Width | 120 in | 66 in | +82% | 99th |
Medians and percentiles are calculated from the utility tractors in the database that have a recorded value for each specification (sample size 3,933–5,720 models).
Same manufacturer
Other Big Bud models
Other manufacturers
Models with similar horsepower
FAQ
Frequently asked questions
What is the engine power output of the Big Bud 400/20?
Rated engine output for the Big Bud 400/20 is 400 hp, delivered by an 8-cylinder engine. The engine displaces 736 ci.
Which transmission does the Big Bud 400/20 use?
The Big Bud 400/20 is equipped with a Gear transmission with 12 forward gears.
What hydraulics does the Big Bud 400/20 have?
The Big Bud 400/20 uses a Closed center load sensing hydraulic system.
How do I maintain a Big Bud 400/20?
Routine service for the Big Bud 400/20 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.