ARCTIC CAT 3004-085 Nos Lh Crankshaft Seal

( Brand: Arctic Cat ), ( Manufacturer Part Number: 3004-085 ), ( Part Type: Seal Crankshaft ), ( Country Of Origin: United States )

Review ARCTIC CAT New Oem Nos Lh Crankshaft Seal fits THUNDERCAT 1993–1994

The **Arctic Cat 3004-085 NOS ThunderCat LH Crankshaft Seal** is a meticulously preserved, never-open-stock (NOS) component designed exclusively for the 1993 1994 Arctic Cat ThunderCat lineup, ensuring seamless compatibility with these high-performance snowmobiles. Crafted from high-grade elastomeric materials, this crankshaft seal is engineered to withstand the extreme demands of Arctic conditions, delivering reliable protection against oil leaks, contamination, and premature wear. The seal features a precision-molded lip design optimized for a perfect fit within the engine s crankshaft housing, minimizing friction while maintaining an airtight barrier to prevent moisture and debris ingress. Ideal for both restoration projects and maintenance upgrades, this NOS seal retains its original factory specifications, guaranteeing an authentic fit and function without the risk of degradation from aftermarket modifications. Whether you're restoring a classic ThunderCat to showroom condition or performing routine maintenance to extend engine life, this seal represents a critical component for preserving the integrity of your Arctic Cat s powerplant, ensuring smooth operation and longevity in even the harshest winter environments.

### **Pros and Cons of buying a Arctic Cat 3004-085 NOS ThunderCat LH Crankshaft Seal (1993-1994)**

1. **New Old Stock (NOS) Condition** The seal is unused, ensuring it meets original manufacturer specifications without wear or degradation. This reduces the risk of premature failure compared to used or aftermarket parts.

2. **Direct Fitment** Designed specifically for the 1993-1994 Arctic Cat ThunderCat LH models, eliminating compatibility issues that can arise with generic or mismatched parts.

3. **Reliability** Arctic Cat parts are known for durability, and a fresh seal can prevent oil leaks, crankshaft damage, and engine failure common issues in older snowmobiles with worn seals.

4. **Preservation of Engine Health** A failing crankshaft seal can contaminate the transmission oil with engine oil, leading to costly damage. Replacing it proactively extends the life of the engine and transmission.

5. **Ease of Installation** Since it s a direct-fit part, installation is straightforward for someone with basic mechanical skills. Arctic Cat provides clear instructions, and the part is designed to fit without modification.

6. **Long-Term Cost Savings** Preventing a catastrophic seal failure avoids emergency repairs, which can be far more expensive than a routine replacement.

7. **Genuine Component** Unlike aftermarket or salvaged parts, this is an authentic Arctic Cat part, ensuring proper sealing and performance.

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1. **Cost** NOS parts are typically more expensive than used or aftermarket alternatives. The price reflects the quality and condition, but it may be a significant investment for budget-conscious buyers.

2. **Limited Availability** Since it s a NOS part, stock may be limited, especially for older models. Purchasing may require waiting or checking multiple suppliers.

3. **Installation Complexity** While the part itself is simple, removing the old seal and ensuring proper installation (e.g., torque specifications, gasket surface prep) requires careful attention. Improper installation can lead to leaks or premature failure.

4. **Potential for Overkill** If the rest of the engine or transmission is heavily worn, replacing just the seal may not fully address underlying issues. A comprehensive inspection might be warranted.

5. **No Warranty (If Purchased Used or from a Third Party)** While NOS implies the part is new, if bought from a reseller or marketplace, warranty coverage may not be included. Always verify the seller s return or warranty policy.

6. **Specialized Tools Needed** Installing a crankshaft seal often requires tools like a seal driver, torque wrench, and possibly a seal installer tool. Owners without these may need to rent or purchase them.

7. **Time-Consuming Process** The job involves draining fluids, removing the transmission, and carefully replacing the seal. For inexperienced mechanics, this could take several hours.

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### **Conclusion**

The Arctic Cat 3004-085 NOS crankshaft seal is a high-quality, reliable part that offers significant long-term benefits for 1993-1994 ThunderCat LH owners. Its primary advantages lie in preventing engine damage, ensuring a proper fit, and maintaining the integrity of the powertrain. However, the higher cost, potential installation challenges, and need for careful execution are factors to consider.

For most owners, the **pros outweigh the cons**, especially if the seal is failing or showing signs of wear. The investment in a NOS part is justified by the avoidance of costly repairs down the line. That said, if budget is a constraint, a thoroughly inspected used seal (from a trusted source) could be a viable alternative though it carries higher risk.

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### **Recommendation**

- You re experiencing or suspecting a failing crankshaft seal (e.g., oil leaks, transmission contamination).

- You have the time, tools, and mechanical skill to install it properly.

- You prioritize long-term reliability and want to avoid engine damage.

- You re comfortable paying a premium for a genuine, unused part.

- You re on a tight budget and can find a high-quality used seal from a reputable source (e.g., a mechanic who inspects parts).

- You re unsure about your ability to install it correctly hire a professional to avoid mistakes.

- The rest of the engine/transmission is in poor condition, and a more comprehensive overhaul is needed.

**Final Verdict:** For the average ThunderCat LH owner, the Arctic Cat 3004-085 NOS seal is a **worthwhile purchase** for maintaining engine health. Proceed with installation only if you re confident in your ability to do it right, or seek professional help if needed.

Details:

GILBERTS, IL 60136, PHONE: 1 847 791-7810 OR 630 965-8628, 60136.

part #: 3004085 prices

• $64.89-$74.94

specifications exhaustsnowmobilee:

• for models: Thundercat
• for makes: Arctic-cat, Arctic
• for years: 1993-1994
• brand: Arctic Cat
• mpn: 3004-085
• part type: Seal Crankshaft
• country of origin: United States

shipping exhaustsnowmobilee:

• service: Standard
• cost: $0.00
• type: Fixed
• class: Standard
• transit: 3-6 Days

seller exhaustsnowmobilee:

• rating: 99.9%
• city: Lake in the Hills, Illinois
• # reviews: 11544

payments exhaustsnowmobilee:

• credit card: Discover
• other
• wallet: Paypal

offer exhaustsnowmobilee:

• options: Ship-to-home
• sold: 0
• started: February 7, 2026
• availability: In Stock
• quantity: 1

returns exhaustsnowmobilee:

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

general exhaustsnowmobilee:

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

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