STARTING LINE PRODUCTS 3399-S550639-69 Slp Exhaust Flange Grafoil Seal Cat

( Brand: Starting Line Products ), ( Manufacturer Part Number: 3399-S550639-69 ), ( Part Type: Seal Exhaust Flange )

Review STARTING LINE PRODUCTS Slp Exhaust Flange Grafoil Seal Arctic Cat Le Snowmobile fits ZRT 600 2001

The **Starting Line 3399-S550639-69 SLP Exhaust Flange Grafoil Seal** is a meticulously engineered aftermarket component designed specifically for the **2001 Arctic Cat ZRT 600 LE**, ensuring a precise and leak-free fit between the exhaust manifold and the downpipe. Crafted from **high-temperature Grafoil gasket material**, this seal is engineered to withstand the extreme thermal and mechanical stresses inherent in high-performance outboard motors, providing a reliable barrier against exhaust gases while maintaining optimal engine efficiency. The **SLP (Super Low Profile) design** of this flange eliminates the need for excessive machining or modification to the stock exhaust system, making installation straightforward and minimizing the risk of damage to surrounding components. Its **precision-cut contours** conform seamlessly to the mating surfaces of the Arctic Cat s exhaust manifold and downpipe, ensuring a consistent and airtight seal that resists warping, cracking, or degradation over time even under prolonged exposure to saltwater corrosion, vibration, and the intense heat generated during operation. Ideal for both new installations and replacements, this gasket is a critical upgrade for enthusiasts seeking to restore or enhance the performance and longevity of their ZRT 600 LE s exhaust system without compromising on fitment or durability.

### **Pros and Cons of buying a Starting Line 3399-S550639-69 SLP Exhaust Flange Grafoil Seal for a 2001 Arctic Cat ZRT 600 LE**

1. **OEM Compatibility** The part is designed specifically for the 2001 Arctic Cat ZRT 600 LE, ensuring a proper fit without modifications. This reduces the risk of leaks or improper installation, which can damage the exhaust system or engine.

2. **High-Quality Grafoil Seal** Grafoil is a durable, heat-resistant material commonly used in exhaust systems for its ability to withstand high temperatures and vibrations. This seal should provide a reliable, long-lasting barrier against exhaust gases.

3. **SLP (Super Low Profile) Design** The SLP designation suggests a thinner, more streamlined seal that may reduce the risk of interference with surrounding components, such as the muffler or exhaust housing. This can simplify installation and improve exhaust flow.

4. **Prevents Exhaust Leaks** A failing or missing exhaust flange seal can lead to exhaust fumes entering the cabin, posing health risks and reducing engine efficiency. Replacing it ensures a proper seal, improving performance and safety.

5. **Easy to Install** As a direct replacement part, it should be straightforward to install, especially if you have basic mechanical skills. No special tools or expertise are typically required beyond standard exhaust repair procedures.

6. **Cost-Effective Solution** Compared to a full exhaust system replacement, this seal is a relatively inexpensive fix. It extends the life of your existing exhaust components, saving money in the long run.

7. **Widely Available** Starting Line is a reputable brand with a strong presence in the ATV and off-road market. The part is likely available at most ATV specialty stores, online retailers, or directly from the manufacturer, ensuring accessibility.

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1. **Potential for Counterfeit Parts** Like many aftermarket or OEM replacement parts, there is a risk of purchasing a counterfeit or low-quality imitation. Always buy from trusted sellers (e.g., authorized dealers, reputable online retailers) to avoid this issue.

2. **Wear and Tear Over Time** Even high-quality Grafoil seals can degrade over time due to extreme heat, vibration, or exposure to chemicals (e.g., oil, fuel residue). The seal may need replacement again after significant mileage or usage.

3. **Installation Challenges** While generally easy, improper installation (e.g., uneven sealing, over-tightening) can damage the flange or seal prematurely. If you re unsure, consulting a professional mechanic may be wise.

4. **Limited Lifespan Compared to Original** The original seal on your ZRT 600 LE may have been designed for the specific wear patterns of that model. A replacement seal, even if high-quality, might not last as long as the original if subjected to harsh conditions (e.g., heavy off-roading, extreme temperatures).

5. **Compatibility Concerns** While the part is advertised for your model, minor variations in manufacturing or aftermarket modifications (e.g., upgraded exhausts) could affect fit. Always verify compatibility with your specific exhaust setup.

6. **Price Sensitivity** Depending on where you purchase it, the price may be slightly higher than generic or no-name alternatives. However, the trade-off for quality and reliability is usually worth it for Arctic Cat owners who prioritize performance and longevity.

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The **Starting Line 3399-S550639-69 SLP Exhaust Flange Grafoil Seal** is a **reliable, OEM-compatible solution** for addressing exhaust leaks in your 2001 Arctic Cat ZRT 600 LE. Its Grafoil material ensures durability under high heat and vibration, while the SLP design minimizes installation complications. The part is cost-effective compared to full exhaust replacements and widely available from trusted sources.

However, like any replacement part, it is not immune to wear over time, and improper installation could negate its benefits. To maximize its lifespan, ensure it is installed correctly and avoid exposing it to excessive stress (e.g., frequent high-RPM operation or off-road abuse).

- You are experiencing exhaust leaks or suspect a failing flange seal.

- You prioritize a high-quality, long-lasting solution that fits your ZRT 600 LE perfectly.

- You plan to install it yourself or have confidence in a mechanic s ability to do so properly.

- You are on a tight budget and can find a similarly rated seal at a lower price (though quality may vary).

- Your exhaust system has been heavily modified, and you re unsure about compatibility.

- You suspect the issue is not the flange seal but another component (e.g., cracked muffler, loose bolts).

**Final Verdict:** For most Arctic Cat ZRT 600 LE owners dealing with exhaust leaks, this is the **best direct replacement option** available. Purchase from an authorized dealer or reputable online retailer to avoid counterfeit parts, and follow installation guidelines carefully. If in doubt, consult a professional mechanic to confirm the issue and ensure proper sealing.

Details:

This is helpful if you are buying multiple items. 1995 - 2002 Arctic Cat ZRT 600 Twin Pipe.: Brand: Starting Line Products, model Number: 3399-S550639-69. I need to exchange an item.

2001 - Arctic Cat ZRT 600 LE Twin Pipe. SLP Exhaust Flange Grafoil Seal for 2001 Arctic Cat ZRT 600 LE Snowmobile: For Systems. Parts without fitment are to be assumed universal and may require vehicle modification.

part #: 3399s55063969 price

• $57.87

specifications exhaustsnowmobilee:

• for models: Zrt, 600
• for makes: Arctic, Arctic-cat
• for years: 2001
• brand: Starting Line Products
• mpn: 3399-s550639-69
• part type: Seal Exhaust Flange

offer exhaustsnowmobilee:

• options: Ship-to-home
• started: May 6, 2026
• availability: In Stock
• sold: 0
• quantity: 3

shipping exhaustsnowmobilee:

• transit: 3-7 Days
• type: Fixed
• class: Standard
• service: Standard
• cost: $0.00

payments exhaustsnowmobilee:

• wallet: Google-pay
• credit card: Discover
• other

seller exhaustsnowmobilee:

• rating: 99.9%
• # reviews: 84653
• city: Boise, ID

general exhaustsnowmobilee:

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

returns exhaustsnowmobilee:

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

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