John Deere 403 Brush Hog(Tackle Any Task)

The John Deere 403 Brush Hog is a powerful implement designed to streamline agricultural tasks with efficiency and precision. This mid-mount rotary cutter is a capable workhorse designed for tackling tough mowing jobs in fields, pastures, and overgrown areas.

The 403 is a versatile tool that can significantly improve your land management. This post dives into everything you need to know about the John Deere 403 Brush Hog, from its specifications and features to its operation and maintenance tips.

Let’s jump in.

John Deere 403 Brush Hog

Built for Tough Tasks

The John Deere 403 boasts a compact yet robust design. Here’s a quick look at its key specifications:

Cutting Width4 feet (48 inches)
Working WidthSlightly wider than cutting width
PTO Requirement540 RPM
WeightApproximately 700 lbs (depending on model year)
Recommended Tractor HP20-35 HP

The 403 features a three-point hitch system for easy attachment to compatible tractors. Its 48-inch cutting width makes it ideal for maneuvering around obstacles and mowing in tight spaces. The heavy-duty gearbox ensures smooth operation and handles brush and heavy vegetation with ease.

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Key Features of the John Deere 403

The John Deere 403 comes equipped with several features that enhance its performance and user experience:

  • Sharp, Durable Blades: The 403 utilizes high-quality mower blades that make clean cuts through grass, weeds, and brush. John Deere offers different blade options depending on your mowing needs.
  • Adjustable Cutting Height: The 403 allows for adjusting the cutting height to achieve the desired finish. This is particularly useful for scalping unwanted growth or maintaining pastures at a specific height.
  • Skid Shoes: The skid shoes protect the mower deck from uneven terrain and obstacles while maintaining a consistent cutting height.
  • Shear Bolt Protection: The 403 incorporates a shear bolt system that protects the drivetrain from damage if it encounters a hidden object.

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Operating the John Deere 403

Before operating the John Deere 403, it’s crucial to consult the owner’s manual for detailed instructions and safety precautions. Here’s a general overview of the operating process:

  1. Attach the mower to your tractor’s three-point hitch. Ensure a secure connection and proper alignment.
  2. Engage the PTO at the recommended RPM (540 RPM for the 403).
  3. Lower the mower deck to the desired cutting height.
  4. Begin mowing, making gradual turns to avoid putting undue stress on the tractor or mower.
  5. Disengage the PTO and raise the mower deck when finished.

Maintenance Tips for Long-Lasting Performance

Regular maintenance is essential for keeping your John Deere 403 operating smoothly and efficiently. Here are some key maintenance tips:

  • Sharpen or replace mower blades regularly. Dull blades lead to ragged cuts and increased wear on the mower.
  • Grease the zerk fittings on the mower deck and gearbox. Refer to the owner’s manual for specific lubrication points and intervals.
  • Inspect the mower deck for damage and repair any dents or cracks promptly.
  • Store the mower in a clean, dry place when not in use.

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Finding the Right John Deere 403 for You

John Deere 403 models might vary depending on the year of manufacture. Here’s what to consider when searching for a John Deere 403:

  • New vs. Used: New models offer the latest features and a warranty, while used models can be a budget-friendly option.
  • Condition: When considering a used 403, thoroughly inspect it for any damage, leaks, or worn parts.
  • Compatibility: Ensure the 403 model you choose is compatible with your tractor’s three-point hitch and PTO horsepower.

Applications of the John Deere 403 Brush Hog

Farmers and landowners utilize the John Deere 403 Brush Hog for various applications, including:

  • Clearing overgrown brush and vegetation
  • Maintaining pastures and fields
  • Creating firebreaks and trails

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Advantages of Using the John Deere 403 Brush Hog

Efficiency in Cutting

Equipped with high-powered blades and a sturdy frame, the John Deere 403 Brush Hog delivers unmatched cutting performance, allowing users to complete tasks quickly and efficiently.


Built to withstand the rigors of heavy-duty use, the John Deere 403 Brush Hog is engineered with durable materials and components, ensuring long-lasting reliability in the field.

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Final Remarks

The John Deere 403 Brush Hog is a dependable rotary cutter that can handle various mowing tasks. Its compact size, robust build, and user-friendly


Is the John Deere 403 Brush Hog suitable for use in rocky terrain?

Yes, the John Deere 403 Brush Hog is designed to handle various types of terrain, including rocky areas. However, users should exercise caution and inspect the implement regularly for signs of damage.

Can the John Deere 403 Brush Hog be used with different types of tractors?

Yes, the John Deere 403 Brush Hog is compatible with a wide range of tractors, making it a versatile choice for farmers and landowners with diverse equipment.

What is the warranty period for the John Deere 403 Brush Hog?

The warranty period for the John Deere 403 Brush Hog may vary depending on the region and dealer. Customers are advised to consult their local John Deere dealer for warranty details.

Does the John Deere 403 Brush Hog require specialized training for operation?

While operating the John Deere 403 Brush Hog requires some basic knowledge of machinery and safety procedures, specialized training is not typically necessary. However, users should familiarize themselves with the operator’s manual and adhere to safety guidelines.

How frequently should maintenance be performed on the John Deere 403 Brush Hog?

Maintenance intervals for the John Deere 403 Brush Hog may vary depending on usage and operating conditions. However, regular inspections and routine maintenance tasks, such as blade sharpening and lubrication, should be performed as recommended by the manufacturer to ensure optimal performance and longevity.

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George Bill
George Bill

George Bill is a Mechanical Engineer by Profession and an avid gardener and has been mowing his lawn for over 20 years. He has used a variety of different mowers during this time.
George is an expert at maintaining his mowers and over the years, he has learned many tricks and techniques for getting the best results from his mowers and is always happy to share his knowledge on this site.