fits make: Arctic-cat, Arctic. year: 2016.

( Brand: Arctic Cat ), ( Manufacturer Part Number: 3703-422 ), ( Type: Spindle Right ), ( Country Of Origin: United States )
The **Arctic Cat 3703-422 2016 M8000 Spindle Right (with the matching 3603-424 kit)** is a premium, high-performance snowmobile designed for riders seeking a blend of cutting-edge technology, rugged durability, and exhilarating off-piste capability. Engineered for both the serious enthusiast and the competitive racer, this model features Arctic Cat s legendary **M8000 E-TEC engine**, a 900cc two-stroke powerplant that delivers an impressive 120 horsepower, ensuring explosive acceleration and effortless handling even in the toughest winter conditions. The **spindle-right configuration** (3703-422) is paired with the **3603-424 kit**, which includes a high-performance **spindle right track**, optimized for superior traction, reduced vibration, and extended track life ideal for riders who demand precision and reliability in deep snow, icy terrain, or aggressive racing scenarios.
This snowmobile is built with Arctic Cat s signature **lightweight yet robust frame**, constructed from high-strength steel and reinforced aluminum components to balance strength and agility. The **M8000 chassis** incorporates a **dual-suspension system** with adjustable shocks on both the front and rear, allowing riders to fine-tune their ride for comfort or performance, depending on the conditions. The **spindle-right track drive** (a key feature of the 3603-424 kit) enhances power transfer and reduces slippage, making it a favorite among racers and trail riders who push their machines to the limit. The **E-TEC fuel injection system** ensures consistent power delivery, improved throttle response, and reduced emissions, while the **digital ignition** provides precise timing for maximum efficiency.
For those who prioritize speed and control, the **2016 M8000** comes equipped with **Arctic Cat s signature racing-inspired handling**, including a **low-profile seat**, **ergonomic handlebars**, and a **tuned steering geometry** that promotes quick, responsive turns. The **spindle-right setup** (3703-422) is particularly advantageous for riders who favor a more aggressive stance, as it shifts the weight distribution for better stability at high speeds. The **3603-424 kit** further enhances this by incorporating a **high-performance spindle right track**, which is designed to minimize flex and maximize grip, making it a sought-after upgrade for both stock and modified snowmobiles.
Under the hood, the **900cc E-TEC engine** is paired with a **6-speed transmission**, offering seamless gear shifts and the ability to maintain high RPMs for sustained power. The **oil-injected system** simplifies maintenance while ensuring optimal lubrication, and the **air-cooled cylinder head** prevents overheating even during prolonged use. For riders who demand versatility, the **M8000 s adjustable suspension** and **quick-release track system** (facilitated by the 3603-424 kit) allow for easy modifications, whether swapping out tracks for different snow conditions or adjusting the ride height for a more aggressive or comfortable stance.
Safety and visibility are also prioritized in this model, with **LED lighting** (available as an option) providing superior illumination for night riding, and **high-back seats** offering better support during high-speed maneuvers. The **spindle-right configuration** (3703-422) is particularly well-suited for riders who prefer a more forward-leaning position, reducing wind resistance and improving aerodynamics. When paired with the **3603-424 spindle right track**, this setup becomes a formidable package for those who demand both speed and precision, whether on the track or in deep powder.
Overall, the **Arctic Cat 3703-422 2016 M8000 Spindle Right (with 3603-424 kit)** is a high-performance snowmobile that bridges the gap between street-legal touring and competitive racing. Its **900cc E-TEC engine**, **spindle-right track drive**, and **adjustable suspension** make it a versatile choice for riders who want a machine that can handle everything from groomed trails to backcountry adventures. Whether you're looking to dominate on the track, conquer deep snow, or simply enjoy the thrill of high-speed riding, this model delivers the power, precision, and durability that Arctic Cat is renowned for.
### **Pros and Cons of Buying a 2016 Arctic Cat M8000 (Spindle Right, 3703-422 Engine, 3603-424 Spindle)**
#### **Pros:**1. **Reliability and Durability** Arctic Cat is known for building robust, long-lasting snowmobiles, especially the M8000 series, which is designed for heavy-duty use. The 2016 model is part of a proven line with a strong reputation for durability in extreme conditions.
2. **Powerful Engine** The **3703-422** engine (a 900cc 2-cylinder) is a well-regarded unit, offering strong torque and acceleration. It s a reliable choice for deep snow and rough terrain, though it may not be as fuel-efficient as smaller engines.
3. **Spindle Right Configuration** The **3603-424 spindle** (right-side spindle) is a common and well-supported setup, meaning parts and maintenance are widely available. This makes repairs and upgrades easier compared to less common configurations.
4. **Good Handling and Suspension** The M8000 series features a **dual-suspension system** (front and rear) that provides a smoother ride on varied terrain, including deep snow and icy trails. The track system is designed for stability in tough conditions.
5. **Aftermarket Support** Arctic Cat has a large aftermarket community, meaning you ll find a wide range of **performance upgrades, track options, and tuning parts** to enhance speed, handling, or comfort.
6. **Resale Value** Arctic Cat retains decent resale value compared to some competitors, especially for well-maintained models. The M8000 is still a sought-after machine in the used market.
7. **Comfortable for Long Rides** The ergonomics of the M8000 are generally well-received, with a **upright riding position** that reduces fatigue on long excursions. The seat and controls are designed for ease of use.
8. **Proven Track System** The **Arctic Track** (or similar high-quality track) is durable and designed for deep snow, reducing the risk of track breakage or slippage in harsh conditions.
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#### **Cons:** 1. **Age of the Model (2016)** While the M8000 is a solid machine, it s now **nearly a decade old**, meaning:- **Outdated technology** compared to newer models (e.g., electronic fuel injection refinements, lighter materials, or improved aerodynamics).
- **Potential for obsolescence** in parts availability as Arctic Cat shifts focus to newer models.
- **Less efficient fuel consumption** than modern engines, which may increase operating costs over time.
2. **Weight** The M8000 is a **heavy snowmobile** (likely around **600 700 lbs**), which can make it harder to maneuver in tight spaces or on steep inclines. This can also contribute to higher fuel consumption.
3. **Fuel Efficiency** The **900cc engine** is not known for exceptional fuel economy. Expect **around 1.5 2.5 gallons per hour** depending on conditions, which can be costly for long rides.
4. **Maintenance Requirements** Older Arctic Cats require **regular upkeep**, including:- **Track tensioning and alignment** (critical for performance and longevity).
- **Engine maintenance** (oil changes, spark plugs, carburetor adjustments if not EFI).
- **Brake system checks** (disc brakes can wear out over time).
- **Exhaust and muffler wear** (common in high-performance machines).
5. **Noise and Vibration** Older snowmobiles tend to be **louder and more vibration-prone** than newer models with improved sound insulation and suspension tuning.
6. **Potential for Hidden Issues** A **used 2016 model** may have **pre-existing problems** such as:- **Worn-out bushings or bearings** in the track system.
- **Leaking seals or hoses** (common in older engines).
- **Electrical gremlins** (if the machine has had modifications or poor storage).
- **Rust or corrosion** if not properly stored in dry conditions.
7. **Limited Modern Features** Newer Arctic Cats (and competitors like Ski-Doo or Yamaha) offer:- **Better ergonomics** (adjustable seats, improved controls).
- **More efficient engines** (some with **direct injection** for better performance).
- **Advanced suspension tuning** for smoother rides.
- **Digital dashboards** (if you prefer modern tech).
8. **Environmental and Legal Considerations** Some regions have **emission regulations** that may affect older snowmobiles. Check local laws to ensure the **2016 model is still street-legal** where you ride.
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### **Ending Conclusion**
The **2016 Arctic Cat M8000 (3703-422 engine, 3603-424 spindle)** is a **solid, reliable workhorse** that excels in deep snow and heavy-duty use. It remains a **great choice for riders who prioritize durability, power, and a proven track record** over the latest tech. However, its **age means it will require more maintenance, may lack modern efficiency, and could become harder to service as parts become less available**.
If you re looking for a **budget-friendly, no-frills snowmobile** that will last for years with proper care, this is an excellent option. But if you want **better fuel economy, lighter weight, or modern comforts**, a newer model (or a well-maintained used Ski-Doo or Yamaha) might be worth considering.
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### **Recommendation**
**Buy it if:**You need a **heavy-duty, deep-snow machine** for backcountry or extreme conditions.
You **already have experience with Arctic Cat** and know how to maintain it.
You re **okay with higher fuel costs and occasional maintenance** in exchange for reliability.
You find a **well-documented, low-mileage example** with a **clean service history**.
You plan to **modify it** (e.g., track upgrades, engine tuning) and want a **strong base platform**.
**Avoid it if:**You want **modern efficiency, lighter weight, or advanced features**.
You **can t commit to regular maintenance** (track tensioning, engine checks, etc.).
You re concerned about **long-term parts availability** as the model ages further.
You ride mostly on **groomed trails or in mild conditions** where a smaller, more efficient machine would suffice.
The **price is too high** relative to newer used alternatives (e.g., a 2018 Ski-Doo or Yamaha with similar power).
**Final Verdict:**This is a **great used purchase for the right buyer** someone who values **proven performance over cutting-edge tech**. If you re prepared for **regular upkeep and don t mind its age**, the M8000 will serve you well for years. However, if you want **long-term cost savings and modern convenience**, a newer or differently configured snowmobile may be a better long-term investment.
Spindle, Steering - Right Green inc. Free shipping is applicable to most items but not all. 2016 Arctic Cat M8000 Spindle Right 3703-422; 3603-424.