Utility tractorsSpec sheet
Big Bud 400/30
The Big Bud 400/30 is a powerful utility tractor built for heavy-duty farm work. It has a strong 400 hp engine made by Detroit Diesel, which is very high compared to most tractors. The engine has 8 cylinders and uses diesel fuel. It's turbocharged, which means it can produce more power. This tractor is big and heavy, weighing 40,000 lb. It's over 22 feet long and 13 feet tall. The Big Bud 400/30 has four-wheel drive and an articulated steering system, making it easy to turn in tight spaces. It has a cab for the driver and uses a power shift transmission with 6 forward gears and 1 reverse gear. The tractor has large agricultural tires on all four wheels, each 24.5 inches wide. It also has a special hydraulic system that helps it handle heavy loads.
ManufacturerBig BudPower400 hp(298.3 kW)Class300+ HP tractors →Engine8-cylinderTransmissionPower Shift
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Key specifications
- Category
- Utility
- Engine power
- 400hp
- Operating weight
- 40,000 lb
- Transmission
- Power Shift
Category comparison
400/30 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 400/30 ranks at the 98th percentile for engine power among recorded utility tractors.
Overview
About the Big Bud 400/30
The Big Bud 400/30 is a powerful utility tractor built for heavy-duty farm work. It has a strong 400 hp engine made by Detroit Diesel, which is very high compared to most tractors. The engine has 8 cylinders and uses diesel fuel. It's turbocharged, which means it can produce more power. This tractor is big and heavy, weighing 40,000 lb. It's over 22 feet long and 13 feet tall. The Big Bud 400/30 has four-wheel drive and an articulated steering system, making it easy to turn in tight spaces. It has a cab for the driver and uses a power shift transmission with 6 forward gears and 1 reverse gear. The tractor has large agricultural tires on all four wheels, each 24.5 inches wide. It also has a special hydraulic system that helps it handle heavy loads.
Full specifications
Recorded specifications
General
| Manufacturer | Big Bud |
|---|---|
| Model | 400/30 |
| Category | Utility tractor |
| Type | 4x4 Articulated 4WD |
| Operating weight | 40,000lb(18,140 kg) |
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 | Power Shift |
|---|---|
| Forward gears | 6 |
| Reverse gears | 1 |
Chassis & drive
| Chassis | 4x4 Articulated 4WD |
|---|---|
| Drive | Four-wheel 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) |
| Height | 156in(3,962 mm) |
| Operating weight | 40,000lb(18,140 kg) |
Closest alternatives
400/30 compared with the nearest models by horsepower
The closest utility models to the Big Bud 400/30 by rated horsepower are the Big Bud 400 and the Big Bud 400/20. The Big Bud 400 matches it on rated power and weighs 3,700 lb more, so it carries more weight per horsepower, which helps traction in draft work. The Big Bud 400/20 matches it on rated power.
| Spec | Big Bud 400/30 | Big Bud 400 | Big Bud 400/20 |
|---|---|---|---|
| Engine power | 400 hp298.3 kW | 400 hp298.3 kW | 400 hp298.3 kW |
| Operating weight | 40,000 lb18,144 kg | 43,700 lb19,822 kg | - |
| Weight per hp | 100 lb/hp61 kg/kW | 109 lb/hp66 kg/kW | - |
| Displacement | 736 ci12.06 L | 893 ci14.63 L | 736 ci12.06 L |
| Cylinders | 8 | 6 | 8 |
| Transmission | Power Shift | Full power shift | Gear |
| Drive | Four-wheel Drive (4WD) | 4WD | 4WD |
Calculators
Calculators for the 400/30
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.
Ballast
116 lb per PTO hp as listed
The calculator gives the target weight and front/rear split for each job.
Units
400 hp is 298.3 kW
The converter gives kW and metric PS values, as used on European spec sheets.
Category medians
400/30 vs. Utility median
Big Bud 400/30 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 | 6 | 12 | -50% | 11th |
| Operating Weight | 40,000 lb | 5,303 lb | +654% | 99th |
| Length | 268 in | 137 in | +96% | 98th |
| Width | 120 in | 66 in | +82% | 99th |
| Height | 156 in | 94.1 in | +66% | 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
How powerful is the Big Bud 400/30?
The Big Bud 400/30 has an engine power output of 400 hp. It is powered by an 8-cylinder engine displacing 736 ci.
What type of hydraulic system does the Big Bud 400/30 use?
Hydraulics on the Big Bud 400/30 are Closed Center Load Sensing.
What is the working weight of the Big Bud 400/30?
The operating weight of the Big Bud 400/30 is approximately 40,000 lb.
What type of transmission does the Big Bud 400/30 have?
The Big Bud 400/30 uses a Power Shift transmission offering 6 forward gears.
What routine service does the Big Bud 400/30 need?
Regular maintenance for the Big Bud 400/30 includes checking and changing engine oil, hydraulic fluid, and filters, plus routine inspections as recommended in the owner's manual. Always follow the manufacturer's maintenance schedule for specific intervals and procedures.