1. Shocks & Suspension On Sale
  2. sku: 22408939534139604
  3. SKI DOO ALPINE 505-0311

SKI DOO ALPINE 505-0311 Leaf Spring Nos 1/2

fits make: Ski-doo.

505-0311 Ski Doo Alpine Vintage Ski-doo Large Leaf Spring Nos - 2 1/2 Inch Wide

( Brand: Ski Doo Alpine ), ( Manufacturer Part Number: 505-0311 ), ( Part Type: Spring )

Review SKI DOO ALPINE Vintage Large Leaf Spring Nos 1/2 Inch Wide

The **Ski-Doo Alpine 505-0311 Leaf Spring NO-S (Non-Oil) Ski-Doo** is a rugged, high-performance snowmobile designed for adventurers who demand reliability, durability, and off-piste capability in the most demanding winter conditions. Engineered with Ski-Doo s signature precision and innovation, this model features a **450cc two-stroke engine** paired with a **leaf spring suspension system**, delivering a perfect balance of power and comfort for both groomed trails and deep powder. The **NO-S (Non-Oil) system** eliminates the need for oil mixing, simplifying maintenance while maintaining peak performance ideal for riders who prioritize convenience without compromising on power. Built with a **heavy-duty frame and reinforced components**, this Ski-Doo is engineered to withstand harsh terrain, from icy slopes to rocky backcountry trails, ensuring long-lasting durability even under the toughest conditions.

The **Alpine 505** stands out with its **aggressive, all-terrain tires** and **adjustable suspension**, allowing for superior traction and a smoother ride over uneven surfaces. The **ergonomic seating position** and **intuitive controls** enhance rider comfort and handling, making it an excellent choice for both recreational enthusiasts and seasoned snowmobilers. Whether tackling steep climbs, navigating tight switchbacks, or cruising across open wilderness, this Ski-Doo offers the responsiveness and control needed to conquer any challenge. Its **compact yet powerful design** also makes it highly maneuverable in tight spaces, perfect for backcountry exploration where agility is key. With a blend of **cutting-edge technology, robust construction, and Ski-Doo s legendary performance**, the **505-0311 Leaf Spring NO-S** is a standout machine for those who refuse to be limited by terrain delivering an exhilarating ride every time it s turned on.

### Pros and Cons of Buying a Ski-Doo Alpine 505-0311 (Leaf Spring, NOS)

#### **Pros:**

1. **Reliability and Durability** Ski-Doo s Alpine series is known for its robust construction, particularly the leaf spring suspension, which is designed to handle rough terrain and heavy use. NOS (New Old Stock) units are often in excellent condition, having been stored properly and not heavily used, which adds to their longevity.

2. **Classic Design and Build Quality** The 505 model is a well-regarded workhorse, built for durability and performance. The leaf spring suspension is simpler and more robust than modern coil-spring setups, making it easier to maintain and repair in remote areas.

3. **Lower Maintenance Costs** Compared to modern snowmobiles with complex electronics and suspension systems, the Alpine 505 has fewer high-tech components. This means fewer potential points of failure and lower long-term maintenance expenses.

4. **Off-Road Capability** The leaf spring suspension is ideal for deep snow, rough trails, and heavy-duty use. It absorbs impacts better than some modern setups, making it a great choice for backcountry riding or commercial applications.

5. **Resale Value and Nostalgia** If you appreciate classic snowmobiles or plan to keep it long-term, the Alpine 505 holds sentimental value. NOS units may also retain better resale value than heavily used or modified examples.

6. **Ease of Repairs** Many mechanics and parts are still available for older Ski-Doo models. The simplicity of the leaf spring suspension means fewer specialized tools or expertise are required for basic repairs.

7. **Powerful Engine** The 505cc two-stroke engine (in this model) provides strong, reliable power, which is well-suited for heavy-duty tasks like pulling sleds or riding in deep snow.

8. **Lower Initial Cost** NOS units are often priced lower than brand-new snowmobiles, making them an attractive option for buyers on a budget.

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#### **Cons:**

1. **Outdated Technology** The Alpine 505 lacks modern conveniences like electronic fuel injection (EFI), traction control, and advanced suspension tuning. This can make it less efficient in terms of fuel consumption and performance compared to newer models.

2. **Higher Fuel Consumption** Two-stroke engines (common in older Ski-Doos) are less fuel-efficient than modern four-stroke or EFI-equipped models. You ll likely burn more gas, especially in deep snow.

3. **Emissions and Environmental Concerns** Two-stroke engines produce more pollution than modern four-stroke or EFI engines. If you ride in areas with strict emissions regulations, you may face restrictions or higher costs for maintenance.

4. **Limited Availability of Parts** While parts are still available, some components (especially for older models) may be harder to find than for newer Ski-Doos. You may need to order from specialty suppliers or wait longer for deliveries.

5. **Higher Noise and Vibration** Older snowmobiles are generally louder and vibrate more than modern, well-insulated models. This can be less comfortable over long rides and may not meet noise regulations in some areas.

6. **Safety Features** Modern snowmobiles come with improved safety features like better braking systems, skid-resistant tracks, and advanced rider aids. The Alpine 505 lacks these, which could be a concern for inexperienced riders.

7. **Resale Depreciation** While NOS units may hold value, the overall market for older snowmobiles is smaller than for newer models. If you plan to sell it later, you may not recoup as much as you invested.

8. **Leaf Spring Limitations** While durable, leaf springs can be less comfortable on smooth trails compared to modern coil or air suspensions. They also may not handle extreme weight or deep snow as efficiently as some newer setups.

9. **Potential for Hidden Issues** Even NOS units can have hidden problems, such as worn-out bearings, rust, or minor wear from storage. A thorough inspection is essential before purchase.

10. **Training Curve for Modern Riders** If you're used to newer snowmobiles with EFI and smoother controls, the Alpine 505 s manual throttle and carbureted engine may feel less responsive or require more skill to handle effectively.

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### **Conclusion and Recommendation**

The **Ski-Doo Alpine 505-0311 (NOS, leaf spring)** is an excellent choice if you prioritize **durability, simplicity, and off-road capability** over modern convenience. It s ideal for:

- **Backcountry riders** who need a reliable, low-maintenance machine for rough terrain.

- **Commercial or heavy-duty use**, such as pulling sleds or working in deep snow.

- **Enthusiasts who appreciate classic design** and don t mind trading some modern comforts for robustness.

- **Budget-conscious buyers** who want a well-built snowmobile without the high cost of a new model.

However, if you value **fuel efficiency, low emissions, advanced safety features, or comfort**, a newer Ski-Doo (or even a used model with EFI) may be a better long-term investment. The Alpine 505 is also not the best choice if you plan to ride frequently on groomed trails or in areas with strict noise/pollution regulations.

#### **Final Recommendation:** Buy the **Ski-Doo Alpine 505-0311 NOS** if:

- You re looking for a **durable, no-frills workhorse** for backcountry or heavy-duty use.

- You have experience with two-stroke snowmobiles and are comfortable with manual controls.

- You re willing to invest time in maintenance and don t mind higher fuel consumption.

Avoid it if:

- You want **modern efficiency, low emissions, or advanced safety features**.

- You plan to ride mostly on **groomed trails or in areas with strict regulations**.

- You re a beginner and prefer the ease of use of newer models.

For the best experience, **inspect the unit thoroughly** (check for rust, engine condition, and suspension integrity) and consider pairing it with a **high-quality track and modern accessories** (like a better seat or exhaust) to improve comfort. If you find it in excellent condition, it s a fantastic addition to any snowmobile collection or a reliable tool for serious riders.

Details:

Attention Buyers I have several of these springs available, inquire for details. As this part may be usefully for several different applications I ask you to please study the photos carefully and all of your questions before purchase. Keep an eye out for some great deals on these vintage OEM parts. Alpine 2 machine.

FOR SALE today is a LEAF SPRING, part number 505-03151. This is the only spring available for leaf assembly on that Alpine, but a handy guy could cut down these large ones to make small using your old springs as template. Than for stopping by and good luck.

part #: 5050311 price

  • $35.00

specifications snowmobileshocksoi:

  • for makes: Ski-doo
  • brand: Ski Doo Alpine
  • mpn: 505-0311
  • part type: Spring

returns snowmobileshocksoi:

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

shipping snowmobileshocksoi:

  • cost: $0.00
  • type: Fixed
  • transit: 4-7 Days
  • service: Economy
  • class: Economy

offer snowmobileshocksoi:

  • sold: 0
  • quantity: 8
  • options: Ship-to-home
  • availability: In Stock
  • started: May 16, 2026

payments snowmobileshocksoi:

  • wallet: Google-pay
  • other
  • credit card: Diners-club

seller snowmobileshocksoi:

  • # reviews: 5151
  • city: Ventura, California
  • rating: 99.7%

general snowmobileshocksoi:

  • Parts Accessories > Snowmobile Parts > Shocks Suspension
  • condition: New
for makes: ski-doo, part type: spring,
category: snowmobile parts > shocks suspension, sku: 22408939534139604,
Ski Doo Alpine 505-0311 Is Similar To:
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1 offer $35.00 USD
  • New. Offer #1 priced at $35.00 + $0.00 shipping estimate = $35.00* total. Alpine 2 machine.FREE SHIPPING

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