ARCTIC CAT 3704-815 Blast Left Swing Arm

( Brand: Arctic Cat ), ( Manufacturer Part Number: 3704-815 ), ( Type: Rear Suspension Pivot Bracket ), ( Country Of Origin: United States )

Review ARCTIC CAT Blast Left Swing Arm fits 2021–2022

The **Arctic Cat 3704-815 2021-2022 Blast Left Swing Arm** is a high-performance, off-road snowmobile designed for riders seeking a thrilling blend of speed, agility, and cutting-edge technology. Engineered with Arctic Cat s signature precision and innovation, this model features a **600cc E-TEC two-stroke engine**, delivering an exhilarating power output of up to **100 horsepower** perfect for tackling deep powder, icy trails, or aggressive jumps with ease. The **Blast series** is renowned for its aggressive styling, lightweight construction, and superior handling, making it a favorite among competitive riders and adrenaline seekers alike.

The **left swing arm** on this model is a key component of its dynamic performance, allowing for precise suspension tuning and enhanced articulation over rough terrain. Paired with Arctic Cat s **Triple-Tube Suspension System**, it ensures a smooth yet responsive ride, absorbing impacts while maintaining stability at high speeds. The **adjustable preload and rebound damping** on the suspension allows riders to fine-tune their setup for optimal performance, whether carving through tight turns or launching off jumps with confidence.

Beyond its mechanical prowess, the **2021-2022 Blast** boasts a sleek, aerodynamic design with a **carbon-fiber reinforced frame** that reduces weight without compromising strength. The **LED headlight and taillight** system enhances visibility in low-light conditions, while the **ergonomic handlebars and adjustable seat** ensure a customizable, rider-friendly fit. For those who demand the ultimate in off-road capability, this snowmobile also includes **Arctic Cat s exclusive Blast-specific exhaust and air intake**, optimizing airflow for maximum power delivery.

Whether you're navigating groomed trails, pushing the limits in backcountry terrain, or competing in snowmobile racing, the **3704-815 Blast Left Swing Arm** delivers a relentless, high-performance experience. Built for riders who refuse to compromise on speed, control, or excitement, this snowmobile stands as a testament to Arctic Cat s commitment to pushing the boundaries of winter sports engineering.

### **Pros and Cons of buying a Arctic Cat 3704-815 (2021-2022) Blast Left Swing Arm**

#### **Pros**

1. **Performance and Power**

The Arctic Cat 3704-815 is a high-performance snowmobile designed for aggressive riding, offering strong acceleration and top-end speed. Its 815cc two-stroke engine delivers reliable power, making it suitable for deep snow, groomed trails, and off-piste conditions.

2. **Durability and Build Quality**

Arctic Cat is known for constructing robust, long-lasting snowmobiles. The 3704-815 features a sturdy frame, high-quality materials, and a reputation for durability, especially in harsh winter conditions.

3. **Handling and Suspension**

The swing-arm suspension system provides a smooth ride while maintaining stability at high speeds. The left-swing design allows for better maneuverability in tight turns and off-trail riding.

4. **Aftermarket Support**

The 3704-815 is a popular model with a strong aftermarket presence. This means you ll have access to a wide range of upgrades, parts, and customization options, including engine swaps, suspension tuning, and aesthetic modifications.

5. **Reliability (When Maintained Properly)**

With regular maintenance, the two-stroke engine in this model is known for being dependable. However, like all two-strokes, it requires more frequent upkeep (oil mixing, spark plug checks, etc.) compared to four-strokes.

6. **Resale Value**

Arctic Cat snowmobiles generally hold their value well, especially for well-maintained models. The 3704-815, being a mid-to-high-end machine, may retain a decent resale price if cared for properly.

7. **Blast Series Features**

The "Blast" designation indicates a more aggressive, performance-oriented build compared to standard models. It often includes upgraded components like stiffer suspension, stronger brakes, and a more aggressive stance, appealing to riders who prioritize speed and handling.

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#### **Cons**

1. **Two-Stroke Engine Limitations**

The 815cc two-stroke engine, while powerful, is less fuel-efficient and produces more emissions than modern four-stroke alternatives. It also requires mixing oil with gasoline, which can be messy and requires careful attention to ratios.

2. **Higher Maintenance Requirements**

Two-stroke engines demand more frequent maintenance, including regular oil changes (every 5-10 hours), spark plug replacements, and carburetor tuning. Neglecting maintenance can lead to engine damage.

3. **Fuel Consumption**

The two-stroke engine burns fuel quickly, especially at high speeds. This can be costly over time, particularly if you ride frequently or for long distances.

4. **Weight and Portability**

The 3704-815 is a heavier snowmobile, which can make it less convenient to transport or store in tight spaces. The swing-arm design adds to its bulk compared to some modern four-stroke models.

5. **Noise and Vibration**

Two-stroke engines are inherently louder and vibrate more than four-strokes. This can be less comfortable for long rides and may not appeal to riders who prioritize a quieter experience.

6. **Parts and Labor Costs**

While Arctic Cat parts are generally reliable, labor costs for maintenance or repairs can be high, especially if you re not mechanically inclined. Some specialized parts may also be expensive.

7. **Resale Depreciation**

Like most high-performance snowmobiles, the 3704-815 may depreciate faster than more fuel-efficient or modern alternatives. If you plan to sell it in a few years, the resale value may not fully offset the initial purchase cost.

8. **Environmental Concerns**

Two-stroke engines are less environmentally friendly due to higher emissions. If you re concerned about environmental impact, a four-stroke model might be a better long-term choice.

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### **Conclusion**

The Arctic Cat 3704-815 (2021-2022) Blast Left Swing Arm is an excellent choice for riders who prioritize raw power, aggressive handling, and a classic Arctic Cat experience. It excels in deep snow, off-trail conditions, and high-performance riding, with a strong aftermarket support system and durable build. However, its two-stroke engine comes with trade-offs in fuel efficiency, maintenance demands, and environmental impact.

If you re an experienced rider comfortable with the upkeep required for a two-stroke and seek a high-performance machine, this snowmobile is a fantastic investment. On the other hand, if you prefer lower maintenance, better fuel economy, or a quieter ride, a modern four-stroke model might be a more practical choice.

---

### **Recommendation**

- You are an experienced rider who enjoys high-performance, aggressive riding.

- You re willing to invest time and effort in regular maintenance.

- You prioritize power, handling, and the classic Arctic Cat feel over fuel efficiency.

- You plan to ride in deep snow or off-trail conditions frequently.

- You re comfortable with the noise and vibration of a two-stroke engine.

- You want lower maintenance and better fuel efficiency.

- You re concerned about long-term costs or environmental impact.

- You prefer a quieter, smoother ride.

- You plan to ride mostly on groomed trails or in lighter snow conditions.

Ultimately, the 3704-815 is a **great choice for enthusiasts who love the thrill of a powerful two-stroke**, but it s not the best fit for casual riders or those seeking a hassle-free experience. If you re set on this model, ensure you re prepared for the maintenance and operating costs associated with it.

Details:

21-22 ARCTIC CAT BLAST LEFT SWING ARM 3704-815, GENUINE USED SIDE. . Removed From: with miles, Please review all pictures to assess the condition of item.

part #: 3704815 price

• $49.99

specifications snowmobileshocksoi:

• for makes: Arctic-cat, Arctic
• for years: 2021-2022
• brand: Arctic Cat
• mpn: 3704-815
• type: Rear Suspension Pivot Bracket
• country of origin: United States

shipping snowmobileshocksoi:

• class: Expedited
• type: Calculated
• transit: 4-8 Days
• cost: $14.35
• service: USPS Priority Mail
• carrier: USPS

offer snowmobileshocksoi:

• started: April 30, 2026
• best offers: True
• quantity: 1
• sold: 0
• options: Ship-to-home
• availability: In Stock

general snowmobileshocksoi:

• Parts Accessories > Snowmobile Parts > Shocks Suspension
• condition: Used

payments snowmobileshocksoi:

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

returns snowmobileshocksoi:

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

seller snowmobileshocksoi:

• city: Ogilvie, Minnesota
• # reviews: 870
• rating: 99.5%

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