SP1 MN-4EZP Arm Trailing Bushing Ultra Suspension Az Kit MN/4EZP

( Manufacturer Part Number: MN/4EZP ), ( Compatible Year: 1998 1997 ), ( Compatible Model: Ultra ), ( Bundle Description: 1 Pc Genuine Sp1 Trailing Arm Bushing Kit ), ( Type: Trailing Arm Bushing Kit ), ( Core Charge: Free No Core Charge ), ( Fitment Type: Direct Replacement )

Review SP1 Mn/4ezp Trailing Arm Bushing Kit Polaris Ultra Suspension A arms Az fits 1997–1998

The **SP1 MN/4EZP Trailing Arm Bushing Kit** is a meticulously engineered upgrade designed specifically for the **1997-1998 Polaris Ultra** suspension A-arms, offering a seamless blend of performance enhancement and durability for off-road enthusiasts. This high-quality kit replaces the stock rubber bushings with **polyurethane (PU) alternatives**, delivering superior articulation, reduced flex, and improved handling under heavy loads or aggressive riding conditions. The **MN/4EZP designation** ensures compatibility with the Ultra s unique suspension geometry, providing precise fitment without compromising the stock arm s structural integrity. Crafted from **abrasion-resistant polyurethane**, these bushings eliminate the softness and wear common in OEM rubber components, allowing the A-arms to pivot more freely while maintaining rigidity under dynamic stress. Whether tackling rough terrain, towing heavy payloads, or pushing the limits of suspension travel, these bushings enhance responsiveness and reduce unwanted movement, resulting in a more controlled and predictable ride. The kit includes **all necessary bushings** for both the left and right trailing arms, ensuring balanced performance and longevity. Ideal for riders seeking a noticeable upgrade in suspension performance without the need for extensive modifications, this kit is a straightforward yet impactful solution for those looking to maximize their Polaris Ultra s off-road capabilities.

Buying the **SP1 MN/4EZP Trailing Arm Bushing Kit** for a **1997-1998 Polaris Ultra Suspension A-Arms** can be a solid upgrade, but it has both advantages and drawbacks depending on your priorities, budget, and riding conditions.

1. **Improved Ride Comfort** The kit replaces worn or cracked rubber bushings with high-quality polyurethane or rubber alternatives, reducing flex and improving suspension response. This can make the ride smoother, especially on rough terrain or after long rides.

2. **Better Handling & Stability** New bushings minimize excessive movement in the A-arms, which can lead to a more predictable steering feel and reduced body roll. This is particularly noticeable on technical trails or at higher speeds.

3. **Durability & Longevity** SP1 (Sport Performance Products) is known for manufacturing high-quality suspension components. Their bushings are designed to last longer than OEM rubber bushings, reducing the need for frequent replacements.

4. **Compatibility & Fit** The kit is specifically designed for the **1997-1998 Polaris Ultra**, ensuring a proper fit without requiring modifications. This reduces the risk of installation errors that could lead to premature wear or damage.

5. **Cost-Effective Upgrade** Compared to full suspension rebuilds or aftermarket suspension forks, this is a relatively affordable way to improve ride quality without a major investment.

6. **Easy Installation** The kit typically includes all necessary hardware, and installation is straightforward for someone with basic mechanical skills. No major disassembly is usually required beyond removing the A-arms.

7. **Compatibility with Other Mods** If you ve already upgraded other suspension components (e.g., shocks, forks), these bushings can complement those changes by ensuring the entire system works in harmony.

1. **Limited Performance Gain** While the bushings will improve ride quality, they won t drastically change the bike s handling or performance. If you re looking for aggressive suspension tuning, you may need additional modifications (e.g., adjustable shocks, stiffer springs).

2. **Potential for Over-Tightening** Polyurethane bushings can be stiffer than OEM rubber, which might make the bike feel less forgiving on rough terrain if not properly adjusted. Some riders report a slightly firmer ride, which may not suit those who prefer plush suspension.

3. **Installation Challenges** If the A-arms are heavily corroded or the bushings are seized, removal and installation can be difficult. In some cases, a press might be needed to remove old bushings, adding to the effort.

4. **Durability Depends on Usage** While SP1 bushings are durable, they won t last forever, especially if you ride aggressively or frequently on extreme terrain. Expect them to outlast OEM bushings but not necessarily to be a "lifetime" solution.

5. **Cost Relative to Other Upgrades** If you re on a tight budget, the price of the kit might be better spent on other suspension components (e.g., shocks, springs) that offer more noticeable performance improvements.

6. **Mixed Reviews on Polyurethane** Some riders prefer polyurethane for its stiffness and longevity, while others find rubber bushings more comfortable. If you re used to softer bushings, the transition might feel noticeable.

7. **No Warranty on Installation Issues** While SP1 products are generally reliable, if installation is done incorrectly (e.g., improper torque, misalignment), it could lead to premature wear or damage. This is not a warranty issue but a risk if you re inexperienced.

The **SP1 MN/4EZP Trailing Arm Bushing Kit** is a **solid, mid-range upgrade** for the **1997-1998 Polaris Ultra**, offering a good balance between cost, durability, and performance improvements. It s ideal for riders who want to **eliminate sag, improve handling, and extend the life of their suspension** without a major overhaul.

If you re looking for **better ride comfort, reduced flex, and a slight handling improvement**, this kit is a worthwhile investment. However, if you re seeking **aggressive tuning, extreme durability, or a softer ride**, you may need to pair it with additional suspension modifications (e.g., adjustable shocks, stiffer springs).

For most riders, the **pros outweigh the cons**, making it a **recommended upgrade** especially if your current bushings are worn or cracked. Just ensure proper installation and consider adjusting your suspension settings to match the stiffer bushings.

- Your current bushings are worn or failing.

- You want a noticeable improvement in ride comfort and handling.

- You re willing to invest in a mid-tier suspension upgrade without a full rebuild.

- You re on a very tight budget and could allocate funds elsewhere (e.g., shocks, forks).

- You prefer a softer, more forgiving ride and dislike the stiffness of polyurethane.

- You lack mechanical experience and are unsure about proper installation.

For most **1997-1998 Polaris Ultra owners**, this is a **practical and effective upgrade** that enhances both comfort and performance.

Details:

SP1 Trailing Arm Bushing Kit for 1997 - 1998 Polaris Ultra - Suspension A-Arms az: Status: In Stock.

part #: mn4ezp price

• $19.94

specifications snowmobileshocksoi:

• for makes: Polaris
• for years: 1997-1998
• mpn: Mn/4ezp
• compatible year: 1998 1997
• compatible model: Ultra
• bundle description: 1 Pc Genuine Sp1 Trailing Arm Bushing Kit
• type: Trailing Arm Bushing Kit
• core charge: Free No Core Charge
• fitment type: Direct Replacement

seller snowmobileshocksoi:

• rating: 98.8%
• city: Multiple warehouses
• # reviews: 17825

offer snowmobileshocksoi:

• availability: In Stock
• quantity: 1
• started: February 24, 2026
• options: Ship-to-home
• sold: 0

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

shipping snowmobileshocksoi:

• class: Standard
• type: Fixed
• cost: $0.00
• service: Standard
• transit: 3-5 Days

general snowmobileshocksoi:

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

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