KORONIS PARTS INC 5118-K266077-78 Ski Doo WINDSHIELD-LOW-15

( Brand: Koronis Parts Inc ), ( Manufacturer Part Number: 5118-K266077-78 )

Review KORONIS PARTS INC Inch Smoke Ski doo Plus fits FORMULA LT 1989–1990

The **Koronis 5118-K266077-78 Windshield (Low-15)** is a meticulously engineered aftermarket replacement designed specifically for the **1989-1990 Ski-Doo Formula** models, ensuring optimal fitment and performance for riders seeking both style and functionality. Crafted from high-quality, durable polycarbonate material, this windshield is built to withstand the rigors of off-road and on-road riding, offering superior resistance to impacts, UV rays, and environmental wear. Its **low-profile design** (Low-15) provides a sleek, aerodynamic look while maintaining adequate wind protection, reducing fatigue during long rides without compromising visibility. The windshield features a **precision-molded frame** that aligns seamlessly with the Ski-Doo s stock mounting points, eliminating gaps and ensuring a secure, wobble-free installation. This design not only enhances the vehicle s aesthetic appeal but also improves aerodynamics, helping to stabilize the bike at higher speeds while minimizing wind noise and turbulence. Whether navigating twisty trails or cruising on paved roads, this windshield delivers a balanced blend of protection and performance, making it an essential upgrade for enthusiasts who demand both reliability and a polished finish. Built to meet or exceed OEM standards, the Koronis 5118-K266077-78 is a trusted choice for maintaining the integrity and character of your Ski-Doo Formula while elevating its overall riding experience.

Buying the **Koronis 5118-K266077-78 windshield (Low-15 model) for a 1989-1990 Ski-Doo Formula** has its advantages and drawbacks. Below is a detailed breakdown of the pros and cons, followed by a conclusion and recommendation.

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### **Pros of Purchasing This Windshield**

1. **Exact Fit for Your Model**

The Koronis 5118-K266077-78 is specifically designed for the 1989-1990 Ski-Doo Formula, ensuring a precise fit without modifications. This reduces the risk of misalignment or improper installation, which can affect visibility and aerodynamics.

2. **High-Quality Construction**

Koronis is a reputable manufacturer known for producing durable, high-performance windshields for snowmobiles. This model is likely made from tempered or polycarbonate materials, which offer better impact resistance and clarity compared to cheaper alternatives.

3. **Improved Visibility and Aerodynamics**

A properly fitted windshield enhances forward visibility, protecting riders from wind, snow, and debris. It also improves aerodynamics, which can slightly boost fuel efficiency and handling, especially at higher speeds.

4. **Compatibility with Aftermarket Upgrades**

If you plan to add lights, mirrors, or other accessories, this windshield may integrate well with aftermarket components designed for Ski-Doo models from that era.

5. **Long-Term Durability**

Assuming the windshield is in good condition (no cracks, scratches, or warping), it should last for multiple seasons with proper care. This makes it a cost-effective solution compared to frequent replacements.

6. **Easier Installation**

Since it s an OEM or direct replacement part, installation is typically straightforward, often requiring only basic tools. Many owners report being able to install it themselves without professional help.

7. **Protection from Elements**

The windshield shields the rider from snow, ice, and wind, reducing fatigue during long rides and improving comfort in harsh conditions.

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### **Cons of Purchasing This Windshield**

1. **Potential for Counterfeit or Low-Quality Replacements**

The aftermarket for Ski-Doo parts can be flooded with counterfeit or poorly made replicas. Without verifying the seller s reputation or the authenticity of the part, you risk receiving a substandard windshield that may crack easily, distort vision, or not fit properly.

2. **Limited Customization Options**

If you prefer a different style (e.g., taller, shorter, or angled), this specific model offers no flexibility. Some riders may want a more aggressive or aerodynamic design, which may not be available with this part.

3. **Cost Relative to Value**

While not excessively expensive, the price of an authentic Koronis windshield may be higher than generic or third-party alternatives. If budget is a concern, you might explore cheaper options, though with trade-offs in quality.

4. **Potential for Scratches or Damage During Shipping**

If purchasing online, the windshield could arrive scratched or damaged due to poor packaging. Always inspect the item upon receipt and request replacements if necessary.

5. **Installation Challenges for Some Riders**

While generally easy, improper installation (e.g., misaligned brackets or loose seals) can lead to rattling, reduced aerodynamics, or even detachment at high speeds. Riders unfamiliar with snowmobile maintenance may struggle with a precise fit.

6. **Limited Availability of Replacement Parts**

If the windshield cracks or needs repairs, finding exact replacement parts (e.g., brackets, seals) may be difficult, especially as Ski-Doo parts become harder to source over time.

7. **Weight Considerations**

Some riders prefer lighter windshields for better maneuverability, though the difference in weight for this model is likely minimal. If you prioritize agility, you might explore lighter alternatives.

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### **Conclusion**

The **Koronis 5118-K266077-78 windshield** is a solid choice for owners of a 1989-1990 Ski-Doo Formula, offering a perfect fit, durability, and improved riding comfort. Its primary strengths lie in its compatibility, quality, and ease of installation, making it a practical investment for those who value functionality and reliability. However, potential buyers should be cautious of counterfeit products, ensure proper installation, and consider whether the cost aligns with their budget and needs.

If you prioritize **authenticity, fit, and long-term performance**, this windshield is highly recommended. If you re open to **budget-friendly alternatives** or **custom designs**, you may want to explore other options, but be prepared for possible trade-offs in quality or fit.

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### **Recommendation**

1. **Verify the Seller s Reputation**: Purchase from a trusted dealer, official Ski-Doo parts distributor, or a well-reviewed online retailer (e.g., SnowmobileParts.com, Ski-Doo dealers) to avoid counterfeit parts.

2. **Check for Damage**: Inspect the windshield for cracks, scratches, or warping before finalizing the purchase. Request replacements if the item is damaged.

3. **Follow Installation Instructions Carefully**: Use the correct brackets and seals to ensure a secure and aerodynamic fit. If unsure, consult a professional.

4. **Consider a Backup Plan**: Keep a spare set of brackets or seals on hand in case of future repairs.

5. **Maintain the Windshield**: Clean it regularly with mild soap and water to prevent fogging or scratches. Avoid harsh chemicals that could degrade the material over time.

**Final Verdict**: **Buy the Koronis 5118-K266077-78 windshield if you need a reliable, exact-fit replacement for your 1989-1990 Ski-Doo Formula.** It s a worthwhile investment for improved protection and performance, provided you source it from a reputable seller and install it correctly.

Details:

I need to exchange an item. Koronis Windshield-Low-15in.-Smoke for 1989 - 1990 Ski-Doo Formula Plus LT: Color: Smoke, Primary Tinted. This is helpful if you are buying multiple items. Graphics windshields are silk screened to a solid black color at the base cover mounting area, then fade out as they move up windshield for style.

Compatibility: Years: Make: model: Application: Notes: 1989 - 1990 Ski-Doo Formula Mach 1, 1987 MX LT, Plus LT. Parts without fitment are to be assumed universal and may require vehicle modification. Precision cut to match OEM exactly, Made from .075in.: Brand: Koronis Parts Inc, model Number: 5118-K266077-78.

part #: 5118k26607778 prices

• $114.40-$121.53

specifications snowmobileshields:

• for models: Lt, Formula
• for makes: Ski-doo
• for years: 1989-1990
• brand: Koronis Parts Inc
• mpn: 5118-k266077-78

payments snowmobileshields:

• wallet: Google-pay
• other
• credit card: Diners-club

seller snowmobileshields:

• # reviews: 82932
• city: San Marcos, CA
• rating: 99.9%

offer snowmobileshields:

• sold: 0
• quantity: 5
• availability: In Stock
• started: April 14, 2026
• options: Ship-to-home

returns snowmobileshields:

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

general snowmobileshields:

• condition: New
• Parts Accessories > Snowmobile Parts > Windshields

shipping snowmobileshields:

• class: Standard
• transit: 2-6 Days
• service: Standard
• type: Fixed
• cost: $0.00

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