SPI SP-2635-545483 Arm Lower Bushing Bolt Kit

( Brand: Spi ), ( Manufacturer Part Number: SP-2635-545483 ), ( Part Type: Arm Bushing Bolt )

Review SPI Polaris Lower A arm Bushing And Bolt Kit fits SWITCHBACK ADVENTURE 600 2015–2018

The **SPI SP-2635-545483 Polaris 600 SwitchBack Adventure (2015 2018) Lower A-Arm Bushing Bolt Kit** is a meticulously engineered aftermarket upgrade designed to enhance the durability, performance, and ride quality of your Polaris 600 SwitchBack Adventure model from the 2015 through 2018 production years. This kit is specifically crafted to address the wear and tear on the lower A-arm bushings and mounting hardware, which are critical components in maintaining proper suspension alignment, reducing unwanted movement, and preventing premature failure. The kit includes high-quality, precision-machined bushings and reinforced bolts that are engineered to withstand the rigors of off-road use, rough terrain, and heavy loads, ensuring a smoother, more stable ride while extending the lifespan of your suspension system. The bushings are made from durable, wear-resistant materials that resist deformation under stress, minimizing flex and maintaining consistent suspension geometry, which is essential for optimal handling and tire contact. The accompanying bolts are designed with a higher tensile strength and corrosion-resistant coatings, preventing loosening and rust, even in harsh environmental conditions. This kit is a straightforward yet impactful modification that requires minimal installation time, making it an ideal choice for riders who demand reliability without sacrificing performance. By replacing the stock components with these upgraded parts, you not only mitigate the risk of suspension sag or misalignment but also improve the overall responsiveness and comfort of your ATV, allowing for more confident and controlled navigation through challenging trails. Whether you're tackling rocky trails, muddy paths, or steep descents, this kit ensures that your Polaris 600 SwitchBack Adventure remains in peak condition, ready to handle whatever adventure lies ahead.

### **Pros and Cons of buying a SPI SP-2635-545483 Polaris 600 Switchback Adventure (2015-2018) Lower A-Arm Bushing Bolt Kit**

This kit is designed to replace the lower A-arm bushings and bolts on the Polaris 600 Switchback Adventure models from 2015 to 2018. Below is a detailed breakdown of its advantages and disadvantages, followed by a conclusion and recommendation.

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### **Pros**

1. **Improved Ride Comfort and Stability**

The lower A-arm bushings are critical components that connect the front axle to the frame, absorbing shocks and vibrations. Worn bushings can cause excessive movement, leading to a rough ride, poor handling, and even premature tire wear. Replacing them with this kit can restore smoothness, reduce bounce, and improve overall stability, especially on rough terrain.

2. **Enhanced Handling and Control**

Worn bushings can cause the front end to "float" or move excessively under load, making steering less precise. New bushings provide better alignment and reduce play, resulting in more responsive and predictable handling. This is particularly beneficial for riders who frequently navigate uneven trails or rough off-road conditions.

3. **Prevents Further Damage**

Bushings that are past their useful life can lead to accelerated wear on other suspension components, such as the steering damper, fork seals, or even the frame itself. Replacing them proactively can prevent costly repairs down the line and extend the lifespan of your ATV s suspension system.

4. **Easy Installation**

The SPI kit is designed for straightforward installation, even for intermediate DIYers. It includes all necessary hardware (bolts, bushings, and sometimes gaskets or seals), reducing the need for additional purchases. The instructions are typically clear, and the process can often be completed in a few hours with basic tools.

5. **Compatibility and Quality**

SPI is a well-known manufacturer of ATV and UTV suspension parts, and this specific kit is engineered to fit the Polaris 600 Switchback Adventure models from 2015 to 2018. The bushings are made from durable materials (often polyurethane or rubber compounds) that are designed to withstand the stresses of off-road use. The bolts are typically high-strength and corrosion-resistant, ensuring a secure fit.

6. **Cost-Effective Maintenance**

Replacing bushings is a relatively inexpensive maintenance task compared to more extensive repairs, such as replacing a damaged steering damper or fork tubes. This kit offers a cost-effective way to maintain your ATV s performance without breaking the bank.

7. **Increased Longevity of the ATV**

By addressing a common wear point, this kit helps maintain the structural integrity of the front end. This can delay the need for more extensive repairs and keep your ATV running reliably for longer, especially if you ride frequently or under demanding conditions.

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### **Cons**

1. **Labor-Intensive Installation**

While the kit itself is straightforward, the installation process can be labor-intensive. You ll need to lift the ATV, remove the front wheel, and access the lower A-arm. This may require jack stands, a torque wrench, and possibly a helper to hold the wheel or ATV steady. If you re not comfortable with mechanical work, you may need to pay for professional installation, which could offset the cost savings of DIY.

2. **Potential for Misalignment**

If the bushings are not installed correctly or if the ATV s alignment is not checked afterward, you may experience uneven tire wear or handling issues. This could require additional adjustments or even a wheel alignment service, adding to the overall cost.

3. **Quality Variability**

While SPI is a reputable brand, the quality of bushings can vary depending on the specific model and the materials used. Some riders report that certain bushings wear out faster than expected, especially in extreme conditions. It s important to research user experiences and consider alternatives if you re concerned about durability.

4. **Additional Tools or Parts May Be Needed**

Depending on the condition of your ATV, you might need to replace other components alongside the bushings. For example, if the bolts are stripped or the bushings are severely worn, you may need to replace them as well. The kit may not include everything you need, such as new gaskets or seals for the steering damper.

5. **Time Commitment**

Installing the bushings can take several hours, especially if you re doing it for the first time. This time commitment may not be ideal if you re planning a day trip or need your ATV immediately. If you re not comfortable with the process, hiring a mechanic could take even longer due to shop availability.

6. **Limited Warranty**

Most aftermarket suspension kits, including SPI products, come with a limited warranty (often 1 year or less). If the bushings fail prematurely due to a manufacturing defect, you ll need to rely on the warranty or pay for replacements out of pocket.

7. **Potential for Over-Tightening**

If you re not careful, overtightening the bolts during installation can damage the bushings or even crack the A-arm. It s crucial to follow the torque specifications provided in the instructions to avoid this issue.

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### **Conclusion**

The SPI SP-2635-545483 lower A-arm bushing bolt kit is a practical and cost-effective solution for maintaining the front suspension of your Polaris 600 Switchback Adventure. The benefits such as improved ride quality, better handling, and preventive maintenance far outweigh the minor drawbacks, particularly for riders who prioritize performance and longevity. However, the installation process requires patience and attention to detail, and it s not a task for those who are uncomfortable with basic mechanical work.

If your ATV s bushings are visibly worn, squeaking, or causing handling issues, replacing them is a smart investment. The kit is well-suited for DIY enthusiasts and can save money compared to professional labor. For those who prefer professional installation, the cost may be higher, but it ensures the job is done correctly the first time.

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### **Recommendation**

- You notice excessive front-end movement, a rough ride, or handling issues in your Polaris 600 Switchback Adventure.

- You re comfortable with basic mechanical work and have the time to install it yourself.

- You want to proactively maintain your ATV to avoid more costly repairs in the future.

- You ve verified that the bushings are indeed the source of the problem (e.g., through visual inspection or a mechanic s assessment).

- You re unsure about the condition of your bushings and need a professional diagnosis.

- You don t have the time or tools to complete the installation safely.

- You re concerned about the quality of the bushings and want to explore other brands or higher-end options (e.g., Fox or Rock Shox bushings, if available for your model).

- Your ATV has additional suspension issues (e.g., worn steering damper or fork seals) that should be addressed simultaneously.

For most riders, this kit is a worthwhile purchase that offers significant benefits with minimal drawbacks. It s a straightforward upgrade that can make a noticeable difference in your ATV s performance and comfort. If you re ready to tackle the installation, it s a recommended choice for maintaining your Polaris 600 Switchback Adventure. If not, consulting a professional mechanic to assess the bushings and perform the replacement is also a solid option.

Details:

Brand: SPI, model Number: SP-2635-545483. Fits: SPI Lower A-Arm. Parts without fitment are to be assumed universal and may require vehicle modification. SPI Polaris 600 Switchback Adventure 2015 - 2018 Lower A-Arm Bushing Bolt kit: kit Contains: One kit.

This is helpful if you are buying multiple items. Location Side: Left or Right Bushing and bolt kit to fit SPI A-Arm SM-08686, SM-08687 Sold one A-Arm Actual contents may vary from photo Compatibility: Polaris 600 Rush Pro-S 2015 - 2018 , Pro-X 2016 , XCR 2017 Switchback Adventure 800 RMK Assault 2016 2018. I need to exchange an item.

part #: sp2635545483 price

• $67.86

specifications snowmobileshocksoi:

• for models: 600, Switchback, Adventure
• for makes: Polaris
• for years: 2015-2018
• brand: Spi
• mpn: Sp-2635-545483
• part type: Arm Bushing Bolt

returns snowmobileshocksoi:

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

offer snowmobileshocksoi:

• availability: In Stock
• options: Ship-to-home
• started: January 31, 2026
• sold: 0
• quantity: 9

general snowmobileshocksoi:

• Parts Accessories > Snowmobile Parts > Shocks Suspension
• condition: New

shipping snowmobileshocksoi:

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

payments snowmobileshocksoi:

• credit card: Discover
• wallet: Paypal
• other

seller snowmobileshocksoi:

• city: San Marcos, CA
• # reviews: 76614
• rating: 99.8%

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