1. Exhaust Snowmobile Parts For Sale
  2. sku: 9619310562660602
  3. SPORTS INC 3318-S316477-78

SPORTS PARTS INC 3318-S316477-78 Spi Pipe Exhaust

fits model: 600. make: Polaris. year: 1996.

3318-s316477-78 Sports Parts Inc Spi Y-pipe To Pipe Exhaust Seal-51mm-o.d.-55mm-height-10mm For 1996 Polaris 600

( Brand: Sports Parts Inc ), ( Manufacturer Part Number: 3318-S316477-78 ), ( Part Type: Pipe Exhaust )

Review SPORTS PARTS INC Spi Y pipe To Exhaust Seal51mmo.d.55mm Height 10mm Polaris fits 600 1996

The **SPI Y-Pipe Exhaust Seal (Part #3318-S316477-78)** is a precision-engineered, high-performance gasket designed specifically for the **1996 Polaris 600** ATV, ensuring a secure and leak-free connection between the exhaust system s Y-pipe and the muffler assembly. Crafted from **high-temperature-resistant silicone rubber**, this seal is engineered to withstand the extreme heat and vibrations generated by the engine, providing long-lasting durability and reliability in demanding off-road conditions. With an **outer diameter of 51mm (2.0 inches)** and a **height of 55mm (2.16 inches)**, the seal fits snugly over the exhaust pipe, creating an airtight barrier that prevents exhaust gases from escaping while maintaining optimal engine performance. The **10mm (0.39-inch) thickness** ensures a robust seal without compromising the exhaust system s structural integrity, reducing the risk of leaks that could lead to reduced power output or engine damage over time. Ideal for both stock and modified Polaris 600 applications, this seal is a critical component for maintaining exhaust efficiency, minimizing noise, and protecting internal engine parts from contamination. Whether you're tackling rough terrain or simply ensuring your ATV runs smoothly, this **OEM-quality SPI exhaust seal** delivers the precision and performance needed to keep your Polaris 600 in peak condition.

### **Pros and Cons of buying a 3318-S316477-78 SPI Y-Pipe Exhaust Seal for a 1996 Polaris 600**

#### **Pros:**

1. **OEM Compatibility** This part is designed specifically for the 1996 Polaris 600, ensuring a proper fit without modifications. It matches the exhaust system s dimensions, including the 51mm outer diameter and 55mm height, reducing the risk of leaks or improper sealing.

2. **Durability** SPI (Sport Performance Industries) is a reputable manufacturer known for producing high-quality aftermarket exhaust components. The seal is likely made from heat-resistant materials, such as silicone or rubber compounds, which can withstand the high temperatures generated by the exhaust system.

3. **Easy Installation** As an OEM-style part, it should be straightforward to install, requiring minimal tools and adjustments. The 10mm height is consistent with factory specifications, so no additional machining or cutting is typically needed.

4. **Prevents Exhaust Leaks** A failing or improperly fitted exhaust seal can cause exhaust gases to leak into the engine bay, reducing performance and creating a safety hazard. This seal ensures a tight, reliable connection between the Y-pipe and the muffler or downpipe.

5. **Cost-Effective** Compared to full exhaust system replacements, replacing just the seal is a low-cost fix. It avoids the need for labor-intensive work while addressing a common wear point in exhaust systems.

6. **Maintains Factory Sound and Performance** Since it replicates the original design, it should not alter the exhaust note significantly, unlike aftermarket parts that may modify the sound or flow characteristics.

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#### **Cons:**

1. **Potential for Wear Over Time** Even OEM-style seals degrade with age, especially if the exhaust system is exposed to extreme heat, road debris, or corrosion. The seal may need replacement again after a few years or miles, depending on usage.

2. **Limited Availability of Parts** While SPI is a well-known brand, finding replacement seals for older Polaris models (like the 1996 600) may require ordering from specialty suppliers. Availability could be an issue if the part is discontinued.

3. **Installation Challenges with Rust or Damage** If the exhaust system or mounting points are corroded or damaged, installing the seal may require additional cleaning or replacement of surrounding components, adding time and cost.

4. **No Performance Upgrades** Unlike aftermarket exhaust systems, this seal does not improve horsepower, torque, or exhaust flow. It is purely a functional replacement to prevent leaks.

5. **Quality Variability** While SPI is generally reliable, counterfeit or low-quality replicas of this part may exist in the aftermarket. Purchasing from an authorized dealer or verified seller reduces this risk but may increase cost.

6. **Environmental Exposure Risks** If the seal is not properly sealed during installation or if it degrades, it could allow exhaust fumes to enter the engine bay, posing health risks to the rider and potential environmental concerns.

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### **Conclusion:**

The **3318-S316477-78 SPI Y-Pipe Exhaust Seal** is a solid choice for a **1996 Polaris 600** owner experiencing exhaust leaks or seal failure. Its **OEM compatibility, durability, and ease of installation** make it a practical solution for restoring proper exhaust function without altering performance. However, **long-term wear, potential availability issues, and the lack of performance benefits** are factors to consider.

If the seal is the only failing component and the rest of the exhaust system is in good condition, this part is a **reliable and cost-effective fix**. For riders who prioritize performance or aesthetics, an aftermarket exhaust system might be worth exploring, but for a straightforward, functional replacement, this SPI seal is a strong recommendation.

### **Recommendation:**

- **Buy from an authorized dealer or a trusted aftermarket supplier** to ensure authenticity and quality.

- **Inspect the surrounding exhaust system** for rust, damage, or other wear before installation to avoid compounding issues.

- **Follow installation instructions carefully** to ensure a proper seal and prevent leaks.

- **Monitor the seal s condition** during regular maintenance checks, replacing it if signs of degradation (cracking, hardening, or leaks) appear.

For most riders, this is the **best balance of cost, reliability, and compatibility** for their 1996 Polaris 600.

Details:

Brand: Sports Parts Inc, model Number: 3318-S316477-78. Parts without fitment are to be assumed universal and may require vehicle modification. This is helpful if you are buying multiple items. SPI Y-Pipe to Pipe Exhaust Seal-51mm-O.D.-55mm- height 10mm for 1996 Polaris 600 XCR SP Snowmobile: Y-pipe exhaust seal.

I need to exchange an item. Compatibility: Years: Make: model: Application: Notes: 1998 - 2002 Arctic Authenticate, 1996 Polaris600 XCR SP, 2000 2001 Arctic Carpentry 10 2001 Cat Mountain Cat 1999 Polaris700 XCR, 1995 Castrate 8 1998 Polaris600 800 LE, 1999 Arctic 1997 Polaris600 SE, 1999 2003 Polaris800.

specifications exhaustsnowmobilee:

  • for models: 600
  • for makes: Polaris
  • for years: 1996
  • brand: Sports Parts Inc
  • mpn: 3318-s316477-78
  • part type: Pipe Exhaust

general exhaustsnowmobilee:

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

offer exhaustsnowmobilee:

  • availability: In Stock
  • quantity: 8
  • options: Ship-to-home
  • sold: 0
  • started: February 14, 2026

seller exhaustsnowmobilee:

  • city: Boise, ID
  • rating: 99.9%
  • # reviews: 77673

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  • time: 30 Days

shipping exhaustsnowmobilee:

  • cost: $0.00
  • service: Standard
  • type: Fixed
  • class: Standard
  • transit: 5-8 Days
for models: 600, for makes: polaris, for years: 1996, part type: pipe exhaust,
category: snowmobile parts > exhaust, sku: 9619310562660602,
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