1. Shocks & Suspension On Sale
  2. sku: 22037387549787721
  3. SKI DOO 503137400

SKI-DOO 503137400 Rear Suspension Center Axle

fits model: Stx, Mx, St, Formula, Mach. make: Skidoo, Ski-doo.

503137400 Ski-doo Skidoo Oem New Rear Suspension Center Axle Formula St Stx Mx Z Mach I

( Brand: Ski-doo ), ( Manufacturer Part Number: 503137400 ), ( Part Type: Suspension Axle ), ( Country Of Origin: Canada )

Review SKI DOO Skidoo Oem New Rear Suspension Axle fits FORMULA MACH STX MX ST

The **Ski-Doo 503137400 Rear Suspension Center Axle for the Formula STX MX Mach** is a precision-engineered component designed to elevate the performance, stability, and ride quality of your Ski-Doo snowmobile. Crafted from high-grade, durable materials, this center axle serves as the backbone of your vehicle s rear suspension system, ensuring seamless articulation and load distribution between the rear wheels and the frame. The Formula STX MX Mach series is renowned for its high-performance capabilities, and this axle is specifically tailored to complement the aggressive handling and off-piste prowess of this model. Its robust construction minimizes flex and vibration, allowing for sharper turns, improved traction, and a more responsive ride, even on the roughest terrain. Whether you're carving through deep powder, tackling icy trails, or pushing the limits on groomed runs, this axle enhances the suspension s ability to absorb impacts while maintaining optimal wheel alignment. The design incorporates advanced engineering to reduce wear on other suspension components, extending the lifespan of your entire drivetrain. For riders who demand the utmost in performance and reliability, this rear suspension center axle is an essential upgrade, ensuring your Ski-Doo remains at the peak of its capabilities year after year.

### **Pros and Cons of buying a Ski-Doo 503137400 (Formula STX MX Mach) with Rear Suspension and Center Axle**

#### **Pros**

1. **Performance and Handling**

The Ski-Doo Formula STX MX Mach is designed for high-speed riding and aggressive off-road performance. The rear suspension system enhances stability and control, reducing body roll during sharp turns and jumps. The center axle setup improves weight distribution, allowing for better traction and maneuverability on varied terrain, including snow, sand, and rocky trails.

2. **Power and Efficiency**

This model features a high-performance engine (likely a 2-stroke or 4-stroke, depending on the exact variant) that delivers strong acceleration and top-end speed. The Formula line is known for its responsive throttle and efficient power delivery, making it suitable for both recreational and competitive riders.

3. **Durability and Build Quality**

Ski-Doo vehicles are built with high-quality materials, including reinforced frames and corrosion-resistant components. The rear suspension and center axle are engineered to withstand heavy use, reducing wear and tear over time. This model is particularly robust for riders who push their machines hard.

4. **Versatility**

The STX MX Mach is versatile for multiple disciplines, including snowmobiling, desert racing, and trail riding. The adjustable suspension and center axle allow for fine-tuning to match different riding conditions, making it adaptable to various environments.

5. **Brand Reputation**

Ski-Doo is a well-established brand with a strong reputation for innovation and reliability. The Formula series is particularly respected in the off-road and racing communities, offering a balance of power, precision, and durability.

6. **Aftermarket Support**

As a popular model, the Ski-Doo 503137400 has a wide range of aftermarket parts available, including suspension upgrades, exhaust systems, and performance enhancements. This makes customization and maintenance easier and more affordable.

7. **Comfort and Ergonomics**

The STX MX Mach is designed with rider comfort in mind, featuring an ergonomic seat, adjustable controls, and a low center of gravity (thanks to the center axle). This reduces fatigue during long rides and improves overall control.

---

#### **Cons**

1. **High Cost**

The Ski-Doo Formula STX MX Mach is a premium machine, and its price reflects that. The base model is expensive, and additional features like the rear suspension and center axle may increase the cost further. This could be a barrier for budget-conscious buyers.

2. **Maintenance Requirements**

High-performance machines like this one require regular maintenance to keep them running optimally. The suspension system, center axle, and engine components may need frequent inspections, adjustments, or replacements, leading to ongoing costs.

3. **Complexity**

The advanced suspension and center axle setup make this model more complex than standard snowmobiles or ATVs. This could translate to a steeper learning curve for new riders, and repairs may require specialized knowledge or professional assistance.

4. **Fuel Efficiency**

The powerful engine in the STX MX Mach is not fuel-efficient. Riders will need to budget for frequent fuel stops, especially during long rides or in remote areas where refueling stations are scarce.

5. **Weight**

The added suspension and center axle contribute to the overall weight of the machine. While this improves stability, it can make the vehicle harder to maneuver in tight spaces or when carrying passengers. Lifting or transporting the machine may also require more effort.

6. **Noise and Vibration**

High-performance engines and aggressive suspension tuning can result in increased noise and vibration levels. Over time, this may lead to rider fatigue or discomfort, especially on rough terrain.

7. **Resale Value**

While Ski-Doo retains a strong resale value, the Formula STX MX Mach may depreciate faster than standard models due to its specialized features and niche appeal. Buyers should consider this if they plan to upgrade or sell the machine in the future.

8. **Limited Off-Road Use (Depending on Terrain)**

While the STX MX Mach excels in snow, sand, and mixed terrain, it may not be as effective in extremely muddy or deep-water conditions. The center axle and suspension are optimized for traction, but heavy mud can still pose challenges.

---

### **Conclusion**

The Ski-Doo 503137400 (Formula STX MX Mach with rear suspension and center axle) is a high-performance machine designed for riders who demand speed, precision, and versatility. It excels in handling, durability, and adaptability across multiple terrains, making it a top choice for enthusiasts and competitive riders. However, its premium price, maintenance needs, and complexity may not suit casual riders or those on a tight budget.

If you prioritize performance, control, and long-term reliability and can invest in maintenance and fuel costs, this machine is an excellent choice. For riders seeking a more affordable, simpler, or versatile off-road vehicle, alternatives like standard ATVs or less specialized snowmobiles may be more appropriate.

### **Recommendation**

Buy the Ski-Doo 503137400 if:

- You are an experienced rider looking for a high-performance machine.

- You plan to use it for racing, aggressive trail riding, or mixed-terrain adventures.

- You are prepared for the higher upfront cost and ongoing maintenance requirements.

- You value brand reputation, durability, and customization options.

Avoid or reconsider if:

- You are a beginner or casual rider who prefers simplicity and lower costs.

- You primarily ride in one specific terrain (e.g., only snow or only desert) where a specialized machine might be more efficient.

- You cannot afford the maintenance, fuel, or potential repair costs associated with this high-performance vehicle.

For most serious riders who can meet its demands, the Ski-Doo Formula STX MX Mach is a worthy investment in performance and enjoyment.

Details:

1987 1993 Formula MX/ LT. 1987 1988 Escapade. Multiple available. NEW Old Stock Skidoo rear suspension axle, new in original packaging has never been used or installed.

1987 1993 Formula Plus/ Plus LT. OEM # 503137400. Please review pictures carefully as they are a large part of the condition.

part #: 503137400 price

  • $32.81

specifications snowmobileshocksoi:

  • for models: Stx, Mx, St, Formula, Mach
  • for makes: Skidoo, Ski-doo
  • brand: Ski-doo
  • mpn: 503137400
  • part type: Suspension Axle
  • country of origin: Canada

general snowmobileshocksoi:

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

payments snowmobileshocksoi:

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

offer snowmobileshocksoi:

  • options: Ship-to-home
  • started: April 2, 2026
  • quantity: 2
  • sold: 0
  • best offers: True
  • availability: In Stock

shipping snowmobileshocksoi:

  • service: USPS Ground Advantage, UPS Ground, USPS Priority Mail
  • class: Standard, Expedited
  • type: Calculated
  • carrier: USPS, UPS
  • transit: 4-8 Days
  • cost: $6.46

seller snowmobileshocksoi:

  • # reviews: 978
  • rating: 100.0%
  • city: Cornell, Wisconsin

returns snowmobileshocksoi:

  • policy: Returns Accepted
  • paid by: Seller
  • time: 30 Days
for models: stx, mx, st, formula, mach, for makes: skidoo, ski-doo, part type: suspension axle, country of origin: canada,
category: snowmobile parts > shocks suspension, sku: 22037387549787721,
Ski-doo 503137400 Is Similar To:
snowmobileshocksoi logo
1 offer $32.81 USD
  • Used. Offer #1 priced at $32.81 + $0.00 shipping estimate = $32.81* total. OUR PLEDGE.FREE SHIPPING

Copyright © snowmobileshocksoi.com