fits model: Thundercat. make: Arctic-cat, Arctic. year: 1993–1994.

( Brand: Arctic Cat ), ( Manufacturer Part Number: 3004-084 ), ( Part Type: Seal Crankshaft ), ( Country Of Origin: United States )
The **Arctic Cat 3004-084 NOS ThunderCat Rh Crankshaft Seal** is a meticulously preserved, high-performance aftermarket component designed exclusively for the iconic **1993 1994 Arctic Cat ThunderCat RH models**, ensuring optimal engine longevity and reliability. This **new-old-stock (NOS) crankshaft seal** is crafted from premium, high-grade elastomeric material, engineered to withstand the extreme demands of high-performance snowmobiles, including intense cold temperatures, heavy loads, and prolonged use in rugged off-road conditions. The seal features a **precision-machined rubber lip** that maintains a perfect, airtight seal against the crankshaft, preventing oil leaks and minimizing internal contamination critical factors for maintaining peak engine efficiency and extending the life of your ThunderCat s powerplant. Unlike generic or lower-quality aftermarket seals, this **OEM-specification part** is built to match the exact dimensions and tolerances of Arctic Cat s original equipment, ensuring a seamless fit without compromising performance. Whether you're restoring a classic ThunderCat or upgrading an existing engine, this **NOS seal** provides the reliability and durability needed to keep your machine running at its best, delivering the raw power and smooth operation that Arctic Cat enthusiasts demand. Perfect for both professional mechanics and dedicated riders, this component is a must-have for anyone seeking to preserve the legendary performance of the ThunderCat lineup.
### **Pros and Cons of buying a Arctic Cat 3004-084 NOS ThunderCat Rh Crankshaft Seal (1993-1994)**
#### **Pros:**1. **Original Equipment Quality** Since this is a **New Old Stock (NOS)** part, it was manufactured to Arctic Cat s original specifications, ensuring a proper fit and performance. Aftermarket or rebuilt seals may not match the same level of precision.
2. **Reliability** The ThunderCat engine is known for durability, and a genuine crankshaft seal from this era was designed to withstand the stresses of a high-performance snowmobile. A fresh seal reduces the risk of oil leaks, which can damage bearings and other internal components.
3. **Compatibility** This part is **directly interchangeable** with the 1993-1994 ThunderCat models (specifically the RH crankshaft seal), eliminating the need for modifications or adapters.
4. **Preservation of Engine Health** A failing crankshaft seal can lead to oil contamination in the transmission or exhaust system, causing premature wear. Replacing it now prevents costly internal damage later.
5. **Resale Value** If you plan to sell or trade the snowmobile in the future, having a NOS seal (especially in good condition) can be a selling point for buyers who prioritize authenticity and original parts.
6. **Ease of Installation** Since it s a straightforward replacement (assuming the engine is accessible), this is a manageable DIY job for those with basic mechanical skills. Arctic Cat parts are generally well-documented for repairs.
7. **Avoiding Counterfeit Parts** NOS parts are less likely to be fakes compared to aftermarket or eBay listings, ensuring you re getting a legitimate Arctic Cat component.
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#### **Cons:**1. **Age and Wear** While NOS means it s unopened, the part itself may be **20 years old**, meaning the rubber seal could be brittle or degraded over time. This is a risk with any older rubber component, even if unused.
2. **Limited Availability** Arctic Cat no longer produces this exact part, so sourcing it may require searching through collectors, specialty snowmobile shops, or online marketplaces (eBay, Facebook Marketplace, etc.). Prices may be higher due to scarcity.
3. **Potential for Counterfeit NOS Parts** Some sellers label parts as "NOS" when they are actually rebuilt, remanufactured, or even new. Always verify the part s authenticity (check for original packaging, serial numbers, or seller reputation).
4. **Cost** NOS parts can be **more expensive** than aftermarket alternatives, especially if sourced from a reputable dealer. The price may not be justified if the part is only marginally better than a high-quality aftermarket seal.
5. **Storage Conditions** Even if the seal was stored properly, long-term storage can affect rubber integrity. If the packaging is damaged or the seal shows signs of drying out, it may not perform as expected.
6. **Engine Condition Matters** If the rest of the engine (bearings, crankshaft, etc.) is worn or damaged, replacing just the seal won t fully restore performance. A seal replacement is a **band-aid solution** if the engine is otherwise degraded.
7. **Installation Risks** If not installed correctly (e.g., improper sealing surface prep, overtightening), the new seal may leak just as quickly as the old one. Requires careful attention to detail.
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### **Conclusion**
Buying the **Arctic Cat 3004-084 NOS crankshaft seal** for your 1993-1994 ThunderCat is a **sound investment** if:- You **prioritize authenticity** and want to maintain original equipment standards.
- Your engine is **otherwise in good condition**, and the seal replacement is part of a **preventative maintenance routine**.
- You **verify the part s authenticity** to avoid counterfeit NOS seals.
- You re **comfortable with the cost** and potential scarcity of the part.
However, if:- You re on a **tight budget**, aftermarket seals (from brands like **Snowmobile Parts Unlimited, Arctic Cat s own aftermarket line, or reputable remanufacturers**) may offer a cost-effective alternative with similar reliability.
- The rest of the engine shows **signs of wear**, consider a **full engine rebuild** or at least inspect other critical components (bearings, crankshaft, camshaft).
- You re **not confident in installation**, factor in labor costs or seek professional help to avoid improper fitting.
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### **Recommendation**
1. **If you value original parts and engine longevity:**- **Proceed with the NOS seal** if you can source it from a **trusted seller** (e.g., a known collector, Arctic Cat dealer, or verified online marketplace).
- **Inspect the seal closely** for cracks, brittleness, or damage before purchasing.
- **Pair this with a full engine inspection** replace other worn components (e.g., timing chain, bearings) if needed.
2. **If cost or convenience is a priority:**- **Consider a high-quality aftermarket seal** (e.g., **Arctic Cat s own remanufactured seals, Snowmobile Parts Unlimited, or similar brands**) as a **cost-effective alternative** with minimal performance trade-offs.
- **Check for leaks or unusual noises** before buying if the seal is already failing, address other potential issues (e.g., oil pressure, gasket leaks).
3. **If the engine is heavily worn:**- **Avoid a partial fix** a crankshaft seal replacement alone won t save a failing engine. **Budget for a rebuild or replacement** if the engine is past its prime.
**Final Verdict:**The NOS seal is the **best choice for purists and long-term reliability**, but it requires due diligence in sourcing and verification. For most practical purposes, a **well-reviewed aftermarket seal** offers a **good balance of cost and performance**. Always prioritize **proper installation** and **comprehensive engine care** to maximize the lifespan of your ThunderCat.
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