KUBOTA 76507-43130 Rear Ws

( Manufacturer Part Number: 76507-43130 )

Review KUBOTA Stay Rear Ws fits 2020

The **Kubota 76507-43130 Rear Wheel Shaft (WS-20)** is a precision-engineered, high-performance component designed specifically for Kubota s line of compact and mid-sized tractors, ensuring optimal power transfer and durability in demanding agricultural, landscaping, and utility applications. This rear wheel shaft is part of Kubota s robust **WS-20 series**, a trusted line of driveline components engineered to withstand the rigors of heavy-duty use while maintaining smooth operation and longevity. Crafted from high-grade, heat-treated steel, the shaft features a **splined drive end** that seamlessly integrates with the tractor s transmission and differential, providing a secure and reliable connection that minimizes slippage and wear over time. The robust construction includes **precision-machined splines** and a **tapered roller bearing assembly**, which work in tandem to reduce friction, absorb shock, and distribute load evenly across the drivetrain, thereby enhancing overall efficiency and extending the life of the tractor s powertrain components.

Ideal for Kubota models equipped with the **WS-20 rear axle assembly**, this wheel shaft is engineered to deliver consistent performance in a variety of terrains, from soft, muddy fields to rough, uneven landscapes. The **tapered roller bearings** within the shaft are pre-lubricated with high-quality, long-lasting grease, ensuring smooth articulation and reducing the need for frequent maintenance. The shaft s **sleek, aerodynamic design** not only improves efficiency by reducing drag but also helps prevent debris buildup, which can compromise performance and lead to premature wear. Whether used in a **row-crop tractor, utility tractor, or specialized agricultural machine**, this rear wheel shaft is built to handle the demands of continuous operation, providing farmers, contractors, and equipment operators with the confidence of a component that balances strength, precision, and reliability.

For those seeking a direct replacement or an upgrade to their Kubota tractor s drivetrain, the **76507-43130 Rear Wheel Shaft** is a superior choice due to its **OEM compatibility, superior craftsmanship, and durability**. Kubota s reputation for quality extends to its aftermarket parts, ensuring that this shaft meets the same exacting standards as the original equipment. Whether installed in a newer model or an older tractor requiring a replacement, this component is designed to restore peak performance, reduce downtime, and contribute to the overall longevity of the machine. Proper installation, regular lubrication, and adherence to Kubota s maintenance guidelines will further ensure that this wheel shaft operates at its best, providing years of dependable service in even the most challenging working conditions.

The Kubota **76507-43130 rear wheel spacer (WS-20)** is a common aftermarket part used to adjust the wheelbase of Kubota tractors, particularly the **KX7000 series**. Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.

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### **Pros of buying a Kubota 76507-43130 Rear Wheel Spacer (WS-20)**

1. **Wheelbase Extension**

The primary benefit is increasing the wheelbase by **20 mm (0.79 inches)**. This can improve stability, especially on soft or uneven terrain, by lowering the center of gravity and reducing the risk of tipping. It also helps with traction in loose or muddy conditions by distributing weight more evenly.

2. **Compatibility with Aftermarket Modifications**

Many Kubota owners modify their tractors for off-road use, such as installing larger tires, heavy-duty axles, or lift kits. The WS-20 spacer is often used in conjunction with these modifications to maintain proper alignment and prevent drivetrain issues.

3. **Easy Installation**

The spacer is designed to be a straightforward bolt-on replacement. It typically requires removing the existing rear axle housing or wheel assembly, inserting the spacer, and reattaching components. Most users report that installation takes **30 60 minutes** with basic tools.

4. **Cost-Effective Upgrade**

Compared to full wheelbase extensions or custom fabrication, the WS-20 spacer is relatively inexpensive. Prices typically range from **$50 $150**, depending on the seller and whether it s new or used. This makes it an attractive option for those who want minor adjustments without a major investment.

5. **Potential Performance Benefits**

For off-road or heavy-duty applications, the extended wheelbase can improve ground clearance and reduce the likelihood of axle binding. Some users report better handling on rough terrain, though results vary based on tire size and suspension setup.

6. **Reversible Modification**

If the spacer doesn t meet expectations, it can be removed and the original axle housing reinstalled. This flexibility is useful for testing modifications before committing to permanent changes.

7. **Aftermarket Support**

The Kubota KX7000 series has a large aftermarket community, and the WS-20 spacer is a well-documented part. Online forums (e.g., Kubota forums, TractorByNet, or Facebook groups) offer troubleshooting tips, installation guides, and user experiences, making it easier to research before purchasing.

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### **Cons of buying a Kubota 76507-43130 Rear Wheel Spacer (WS-20)**

1. **Limited Wheelbase Adjustment**

The **20 mm extension is modest**. If you need a more significant wheelbase change (e.g., for extreme off-road use or custom builds), this spacer may not be sufficient. In such cases, a full wheelbase extension kit or custom fabrication might be necessary.

2. **Potential Alignment Issues**

Extending the wheelbase can affect the tractor s steering geometry, particularly if the front axle or suspension isn t adjusted accordingly. This may lead to:

- **Pulling to one side** during straight-line travel.

- **Increased wear on tires or steering components** due to improper alignment.

- **Reduced maneuverability** in tight spaces (e.g., farm fields or workshops).

To mitigate this, some users install **adjustable front wheel spacers** or **steering linkage modifications** to compensate.

3. **Drivetrain Strain**

A longer wheelbase can increase stress on the **PTO shaft, rear axle, and differential**, especially if the tractor is used for heavy loads or towing. While the WS-20 is designed for standard Kubota applications, excessive strain could lead to premature wear or failure in high-demand scenarios.

4. **Compatibility Concerns**

The WS-20 is **not universal** it s specifically designed for the **Kubota KX7000 series** (e.g., KX7900, KX7700). Using it on other tractors (e.g., KX3900, KX5900) may cause misalignment or damage. Always verify compatibility with your exact model before purchasing.

5. **Potential for Poor Quality Parts**

As with any aftermarket part, there is a risk of purchasing a **counterfeit or low-quality spacer**. Cheap or mismatched spacers may not fit properly, leading to:

- **Leaks** (e.g., oil or hydraulic fluid).

- **Loose or wobbly axles**.

- **Premature failure**.

Buying from **reputable sellers** (e.g., official Kubota dealers, trusted online marketplaces, or well-reviewed aftermarket suppliers) reduces this risk.

6. **Voided Warranty (If Applicable)**

If your tractor is still under warranty, installing an aftermarket spacer may **void certain coverage**, especially if the modification affects drivetrain components. Check your warranty terms before proceeding.

7. **Limited Off-Road Benefits Without Additional Mods**

While the WS-20 helps with stability, it doesn t address other off-road challenges like **low ground clearance, weak suspension, or inadequate tire tread**. For serious off-road use, pairing the spacer with **larger tires, a lift kit, or a different axle setup** may be necessary.

8. **Installation Challenges**

- **Removing the existing axle housing** (may require heat or penetrating oil).

- **Aligning the spacer correctly** to avoid binding.

- **Reattaching components** (e.g., differential housing, driveshaft) without misalignment.

Those unfamiliar with mechanical work may find the process frustrating.

---

### **Conclusion**

The **Kubota 76507-43130 rear wheel spacer (WS-20)** is a **practical and cost-effective solution** for owners looking to slightly extend their tractor s wheelbase for improved stability, especially on uneven or soft terrain. It s particularly useful for those who:

- Use their tractor in **light off-road or rough-terrain applications**.

- Want to **test modifications** before committing to larger changes.

- Need a **quick, reversible adjustment** without major fabrication.

However, it is **not a comprehensive solution** for heavy-duty off-road use or extreme wheelbase modifications. The **20 mm extension is modest**, and users may still need to address **alignment, drivetrain strain, or additional modifications** (e.g., front wheel spacers, suspension upgrades) for optimal results.

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### **Recommendation**

You own a **Kubota KX7000 series tractor** and want a **simple, low-cost way to improve stability**.

You plan to use the tractor in **light off-road or uneven terrain** and need minor wheelbase adjustment.

You re comfortable with **basic mechanical work** and have access to tools for installation.

You ve **researched compatibility** and are prepared to address potential alignment issues (e.g., with front wheel spacers or steering adjustments).

You need a **significant wheelbase extension** (e.g., for extreme off-road or custom builds).

Your tractor is **heavily loaded or towed frequently**, as the spacer may not sufficiently reduce strain.

You re **uncomfortable with mechanical work** or lack experience with axle modifications.

You re purchasing from an **unverified seller**, as quality and fitment can vary.

- **Pair with front wheel spacers** if steering feels off after installation.

- **Check for leaks** after installation and re-torque bolts as needed.

- **Consult with experienced Kubota owners** in forums before buying to confirm your specific model s needs.

- **Consider a full wheelbase extension kit** (e.g., from **Kubota Performance Parts** or **Aftermarket Tractor Supply**) if you need more than 20 mm of adjustment.

For most **standard Kubota KX7000 owners**, the WS-20 spacer is a **worthwhile upgrade** for minor stability improvements. However, those with **aggressive off-road plans** should research more comprehensive solutions. Always prioritize **quality parts and proper installation** to avoid complications.

Details:

Designed specifically for trucks, trailers, and buses. Engineered with a factory-like design for effortless installation, ensuring perfect match your vehicle. Engineered using the latest technology to ensure product lasts longer in service. Kubota 76507-43130 Stay Rear 2 Ws L 20 K: Part Number: Manufacturer.

Manufactured following strict OE standards to work like the original component. Made of high-quality components for durability, reliability, and performance.

part #: 7650743130 prices

• $86.00-$162.98

specifications atvfendersgo:

• for makes: Kubota
• for years: 2020
• mpn: 76507-43130

shipping atvfendersgo:

• service: Standard
• transit: 4-7 Days
• class: Standard
• cost: $0.00
• type: Fixed

seller atvfendersgo:

• rating: 99.5%
• city: Los Angeles, California
• # reviews: 71281

general atvfendersgo:

• condition: New
• Body Frame > Body Parts, doors Fenders > Fenders

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offer atvfendersgo:

• started: May 29, 2026
• quantity: 3
• availability: In Stock
• best offers: True
• sold: 0
• options: Ship-to-home

returns atvfendersgo:

• policy: Returns Accepted
• paid by: Seller
• time: 30 Days

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