1. Motorcycle Body-Frame Parts For Sale
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  3. POLARIS 15878077

POLARIS 15878077 Sl Left Engine Motor Mount Bracket

fits model: Slingshot. make: Polaris. year: 2016.

15878077 Polaris 16 Slingshot Sl Left Engine Motor Mount Bracket

( Manufacturer Part Number: 15878077 ), ( Part Type: Bracket Engine Motor Mount ), ( Country Of Origin: United States ), ( Manufacturer Warranty: Unspecified Length ), ( Storage Location: I8 5111995-t ), ( Paint: Oem Paint )

Review POLARIS Sl Left Engine Motor Mount Bracket fits SLINGSHOT 2016

The **Polaris 16 Slingshot SL Left Engine Motor Mount Bracket (Part #15878077)** is a precision-engineered component designed specifically for the iconic Polaris 16 Slingshot SL model, ensuring optimal performance, durability, and reliability under demanding off-road conditions. Crafted from high-grade, heat-treated steel, this bracket is built to withstand the rigors of rugged terrain, frequent vibrations, and the constant stress of engine movement, providing a secure and stable foundation for the left-side motor mount assembly. Its robust construction minimizes wear and tear on surrounding components, reducing the risk of premature failure and extending the lifespan of your vehicle s drivetrain. The bracket features a meticulously machined design, with carefully contoured surfaces and reinforced mounting points to distribute load evenly, preventing excessive strain on critical fasteners and connections. Whether navigating rocky trails, steep inclines, or uneven surfaces, this bracket delivers the structural integrity needed to maintain alignment and power transfer, ensuring that your Polaris 16 Slingshot SL operates with the efficiency and responsiveness you expect from this legendary ATV. Ideal for both original equipment replacement and aftermarket upgrades, this part adheres to Polaris stringent quality standards, offering a seamless fit and hassle-free installation for mechanics and DIY enthusiasts alike. By incorporating this high-performance bracket into your vehicle s suspension system, you reinforce the overall durability of your Slingshot SL, enhancing its off-road capabilities and ensuring a smoother, more controlled ride across any terrain.

The **Polaris 16 Slingshot Left Engine Motor Mount Bracket (Part #15878077)** is a critical component for maintaining proper engine alignment and suspension function in your Polaris 16 Slingshot ATV. Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.

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### **Pros of buying a Bracket**

1. **Ensures Proper Engine Mounting**

The bracket secures the engine to the frame, preventing excessive movement or misalignment. A worn or damaged bracket can lead to engine drift, which affects handling, suspension performance, and drivability. Replacing it ensures the engine stays in the correct position, improving overall vehicle stability.

2. **Prevents Suspension Issues**

A loose or broken bracket can cause the engine to shift, affecting the suspension s ability to function correctly. This can lead to uneven tire wear, poor ride quality, and potential damage to other suspension components (e.g., shocks, control arms). Replacing the bracket helps maintain proper suspension geometry.

3. **Prevents Further Damage**

If the bracket is cracked, bent, or missing, it can lead to more severe issues, such as engine detachment (in extreme cases) or damage to the frame or transmission. Addressing the problem early avoids costly repairs down the line.

4. **OEM Quality and Fit**

Polaris parts are designed to meet the exact specifications of your vehicle. Using an OEM bracket ensures a perfect fit, reducing the risk of installation errors or compatibility issues with other components.

5. **Warranty Coverage**

If the bracket fails due to manufacturing defects, Polaris may cover the replacement under warranty, depending on the age and condition of your ATV. Purchasing directly from Polaris or an authorized dealer ensures you can take advantage of warranty claims if needed.

6. **Easy Installation**

The bracket is relatively straightforward to replace, especially if you have basic mechanical experience. Polaris provides installation instructions, and many users report completing the job in under an hour with standard tools (socket wrench, torque wrench, and possibly a jack).

7. **Long-Term Reliability**

Replacing a worn bracket with a new one restores the engine s proper alignment, which can extend the lifespan of related components like the transmission, driveshaft, and suspension. This is particularly important for high-mileage or frequently used ATVs.

8. **Improved Performance and Safety**

A properly mounted engine contributes to smoother power delivery, better handling, and reduced vibration. This enhances the riding experience and reduces fatigue during long rides. Safety is also improved, as a loose engine could pose a risk if it shifts unexpectedly.

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### **Cons of buying a Bracket**

1. **Cost**

The bracket is not an extremely expensive part, but it is still a dedicated component. The price typically ranges between **$50 and $100**, depending on whether you purchase it directly from Polaris, an authorized dealer, or a third-party seller. If labor costs are involved (e.g., at a shop), the total expense increases.

2. **Labor-Intensive Replacement (If DIY Is Challenging)**

While the replacement is manageable for experienced DIYers, it requires removing the engine mount bolts, possibly draining fluids (if the engine is being worked on), and ensuring proper torque specifications. Those uncomfortable with mechanical work may prefer a professional to avoid mistakes.

3. **Potential for Counterfeit Parts**

If purchasing from non-authorized sellers (e.g., eBay, Amazon, or untrusted online marketplaces), there is a risk of receiving a **counterfeit or low-quality replica**. Counterfeit parts may not fit correctly, fail prematurely, or void your warranty. Always buy from **Polaris-approved dealers or reputable suppliers** to avoid this issue.

4. **Additional Components May Be Needed**

In some cases, the bracket replacement may reveal other worn or damaged parts (e.g., bushings, bolts, or frame mounts). This could require additional purchases, increasing the overall cost. Always inspect the surrounding components during installation.

5. **Time Off the ATV**

If you re not replacing the bracket yourself, you ll need to take your ATV to a shop, which may require scheduling an appointment and waiting for service. For frequent riders, this downtime can be inconvenient.

6. **Risk of Over-Tightening or Under-Tightening**

Improper torque on the mounting bolts can lead to stripped threads or premature bracket failure. Using a torque wrench and following Polaris specifications is critical to avoid this issue.

7. **Limited Lifespan of Related Components**

While replacing the bracket improves things, other parts (e.g., engine mounts, suspension bushings) may still be worn. If these are neglected, the problem could recur. A full inspection of the engine mounts and suspension is recommended during the replacement process.

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### **Conclusion**

The **Polaris 16 Slingshot Left Engine Motor Mount Bracket (15878077)** is a **necessary replacement** if your current bracket is damaged, cracked, or misaligned. The benefits such as improved engine stability, suspension function, and long-term reliability far outweigh the minor drawbacks, particularly if you purchase the part from a trusted source and perform the replacement correctly.

The primary **cons** (cost, labor, and potential for counterfeit parts) are manageable with proper planning. For most owners, the **pros significantly justify the investment**, as neglecting the issue could lead to far more expensive repairs later.

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### **Recommendation**

1. **Purchase from an Authorized Source**

Buy the bracket directly from **Polaris, an official dealer, or a reputable aftermarket supplier** (e.g., Polaris Parts Store, RockAuto, or ATV parts specialists). Avoid unknown sellers to ensure authenticity and quality.

2. **Inspect Surrounding Components**

While replacing the bracket, check the **right engine mount, suspension bushings, and frame mounts** for wear. Replace any damaged parts to prevent future issues.

3. **Follow Installation Guidelines Carefully**

Use a **torque wrench** and follow Polaris specified torque values (typically **30-40 ft-lbs** for engine mount bolts). Refer to the **Polaris service manual** or a trusted online guide (e.g., ATV.com, YouTube tutorials) for step-by-step instructions.

4. **Consider Professional Installation If Needed**

If you re unsure about the replacement process, take your ATV to a **Polaris-certified technician**. While DIY is possible, improper installation can lead to safety risks or further damage.

5. **Monitor Performance After Replacement**

After installing the new bracket, take your ATV for a test ride to ensure the engine is properly aligned and there are no unusual vibrations or handling issues. If problems persist, have a professional inspect the work.

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**Final Verdict:** **Buy the bracket if it s damaged or worn.** The long-term benefits in terms of safety, performance, and preventing costly repairs make it a worthwhile investment. Just ensure you source it correctly and install it properly.

Details:

FREE shipping on every order to the lower 48 states. Every part is one-of-a-kind. Residential delivery with lift gate is available. We started with a single motorcycle dismantled in home garage.

Larger items from $46.99. Item must be in original, uninstalled condition with no modifications. 4.8 out of 5 stars across 322 reviews. Do you accept offers?, Some listings offers.

30-day warranty included on all parts. Please verify the part number and compatible model's before purchasing. To Watch.: Are these genuine OEM parts?, Yes.

We review all reasonable offers promptly. Do you combine shipping?, Yes. Look for the Make Offer button on listing page.

part #: 15878077 price

  • $40.00

specifications fendeframat:

  • for models: Slingshot
  • for makes: Polaris
  • for years: 2016
  • mpn: 15878077
  • part type: Bracket Engine Motor Mount
  • country of origin: United States
  • manufacturer warranty: Unspecified Length
  • storage location: I8 5111995-t
  • paint: Oem Paint

offer fendeframat:

  • options: Ship-to-home
  • availability: In Stock
  • quantity: 1
  • sold: 0
  • best offers: True
  • started: April 7, 2026

seller fendeframat:

  • rating: 99.4%
  • # reviews: 220705
  • city: Odessa, Florida

shipping fendeframat:

  • transit: 3-7 Days
  • service: FedEx Ground / FedEx Home Delivery, USPS Priority Mail, FedEx 2Day, Overnight
  • carrier: FedEx, USPS
  • class: Standard, Expedited, One-day
  • cost: $0.00
  • type: Fixed

returns fendeframat:

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

payments fendeframat:

  • wallet: Paypal
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  • credit card: Discover

general fendeframat:

  • condition: Used
  • Motorcycle Scooter Parts Accessories > Body Frame > Other Body Frame
for models: slingshot, for makes: polaris, for years: 2016, part type: bracket engine motor mount, country of origin: united states, manufacturer warranty: unspecified length, storage location: i8 5111995-t, paint: oem paint,
category: motorcycle parts > motorcycle scooter parts accessories > body frame, sku: 12462654506292861,
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1 offer $40.00 USD
  • Used. Offer #1 priced at $40.00 + $0.00 shipping estimate = $40.00* total. CONDITION SHOWN IN PICTURES ABOVE. MODEL: POLARIS SLINGSHOT SL.FREE SHIPPING

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