SKI-DOO 505074143 Leg Left Right Spindle Knuckle

( Brand: Ski-doo ), ( Manufacturer Part Number: 505074143 ), ( Orientation: Left Right ), ( Type: Spindle )

Review SKI DOO E tec Left And Right Spindle Knuckle Leg Pair fits SUMMIT 850 2017

The **2017 Ski-Doo Summit 850 E-TEC Left/Right Spindle Knuckle Leg (Part #505074143)** is a high-performance, precision-engineered component designed exclusively for Ski-Doo s flagship Summit 850 E-TEC model, ensuring optimal handling, durability, and reliability for both on-road and off-road adventures. Crafted from high-grade, heat-treated steel, this spindle knuckle leg is built to withstand the rigors of aggressive riding, delivering superior structural integrity and resistance to wear and tear. The left and right spindle knuckle legs are engineered to maintain precise alignment and suspension geometry, which is critical for maximizing steering responsiveness, stability, and overall ride quality. The E-TEC (Electric Throttle Control) compatibility of this part ensures seamless integration with the Summit 850 s advanced electronic throttle system, allowing for smooth and precise power delivery while enhancing the rider s control over acceleration and braking. Whether navigating tight trails, cruising at high speeds on groomed paths, or tackling rough terrain, this spindle knuckle leg plays a pivotal role in the Summit 850 s dynamic performance, offering a perfect balance of strength and flexibility. Ideal for both original equipment replacement and aftermarket upgrades, this part adheres to Ski-Doo s stringent manufacturing standards, ensuring a perfect fit and long-lasting performance. For riders who demand the best in snowmobile engineering, the **2017 Ski-Doo Summit 850 E-TEC Spindle Knuckle Leg** is an essential component for maintaining peak mechanical condition and extending the lifespan of this high-performance machine.

### Pros and Cons of Buying a Ski-Doo Summit 850 E-TEC (Model 505074143, 2017) with Left/Right Spindle Knuckle Leg

The 2017 Ski-Doo Summit 850 E-TEC features a powerful 850cc E-TEC engine, delivering strong acceleration and reliable performance for both on-road and off-road use. The electric start ensures convenience, while the liquid-cooled system helps maintain optimal engine temperature.

The E-TEC (Electronic Throttle Control) system provides smoother throttle response, better fuel efficiency, and improved handling compared to older carbureted models. This makes it more responsive and easier to control, especially in varying terrain.

The Summit 850 is designed with rider comfort in mind. It features an adjustable seat, ergonomic handlebars, and a spacious cabin with ample legroom. The suspension system (adjustable on some models) helps absorb bumps, reducing fatigue during long rides.

The Summit 850 is a versatile ATV, suitable for trail riding, light off-roading, and even some utility tasks. Its mid-mounted engine and balanced weight distribution contribute to stability and maneuverability.

Ski-Doo (a division of Bombardier) is known for building durable and well-engineered ATVs. The 2017 model, though not the latest, is generally reliable if properly maintained. The E-TEC system is also less prone to common issues found in older mechanical throttle systems.

Ski-Doo ATVs tend to hold their value reasonably well, especially models with popular features like the E-TEC engine. This can be beneficial if you plan to sell or trade it in the future.

The Summit 850 has a wide range of aftermarket accessories available, from winches and lighting kits to storage solutions. The spindle knuckle leg (left/right) suggests it may have been modified or is compatible with aftermarket parts, which could be useful for customization.

Compared to larger or more powerful ATVs, the 850 E-TEC offers decent fuel efficiency, making it cost-effective for regular use.

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The 2017 model is now several years old, which means it may lack some of the latest advancements in ATV technology. Newer models (2020 ) may offer improved suspension, electronics, and safety features.

As with any vehicle, a 2017 Ski-Doo will have accumulated some mileage and wear. You ll need to inspect critical components like the engine, suspension, brakes, and electrical system before purchasing. The spindle knuckle leg (if modified or worn) could indicate past issues or potential future problems.

Older models may require more frequent maintenance or replacement of parts. Components like belts, hoses, and seals can degrade over time, leading to higher long-term costs if not properly maintained.

While Ski-Doo ATVs hold value reasonably well, a 2017 model will have depreciated significantly compared to a newer one. If you plan to upgrade soon, the resale value may not justify the purchase.

The E-TEC system is generally reliable, but older models may still experience occasional electrical gremlins, such as sensor failures or wiring issues. This could require occasional diagnostics or repairs.

The suspension on the Summit 850 may not be as advanced as newer models, which could affect comfort and handling on rough terrain. If you frequently ride on very rough trails, you might find the suspension less forgiving than in a more modern ATV.

While Ski-Doo parts are widely available, some specialized components (especially for older models) may be harder to find or more expensive than for newer models.

The mention of "left/right spindle knuckle leg" suggests the ATV may have been modified or has unique parts. While this can be beneficial for customization, it could also mean that standard parts or repairs may not fit, increasing complexity or cost.

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The 2017 Ski-Doo Summit 850 E-TEC is a capable and reliable ATV that offers strong performance, comfort, and versatility for riders who need a mid-sized machine for trail riding or light utility work. Its E-TEC engine provides modern advantages over older models, and the Ski-Doo brand is known for durability. However, the age of the model means you ll need to carefully inspect it for wear, maintenance history, and potential issues before purchasing. If you re looking for a well-used but still functional ATV and are willing to invest in maintenance, this could be a solid choice. On the other hand, if you prioritize the latest technology, advanced suspension, or plan to keep the ATV long-term, a newer model might be more worthwhile.

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- You re on a budget but still want a reliable, mid-sized ATV with E-TEC technology.

- You ve thoroughly inspected the ATV (engine, suspension, electrical system, and spindle knuckle leg) and confirmed it s in good working condition.

- You re comfortable with occasional maintenance and don t mind the age of the model.

- You plan to use it for moderate trail riding or light utility work rather than extreme off-roading.

- You want the latest suspension, electronics, or safety features.

- You plan to keep the ATV for many years and want lower long-term maintenance costs.

- You frequently ride on very rough terrain where advanced suspension would be beneficial.

- You re willing to pay a premium for a more modern machine with better resale value.

Before purchasing, arrange for a pre-purchase inspection by a professional mechanic familiar with Ski-Doo ATVs. Pay close attention to the spindle knuckle leg, suspension, and electrical components to ensure they are in good condition. If the ATV has a clean service history and no major issues, it can be a great value. Otherwise, consider alternatives like a newer Ski-Doo or a different brand/model that better fits your needs.

Details:

It is still a usable part. This item is in GOOD condition. They are straight. The paint is scratched.

They have some scratches and wear marks. It all depends on the size and weight of items. It may have some surface scratches, but no mechanical problems. It includes everything pictured.

We most often are able to combine shipping if multiple items purchased. FAIRLY GOOD: This is a used part that in good working order but has larger amount of cosmetic damage. Ratings for Item Condition. EXCELLENT: This is a new part that still in the package and perfect condition.

Or it is a part with small mechanical problem but still usable. They do not have any cracks. Domestic Shipping. The bushings are good.

part #: 505074143 prices

• $76.47-$129.00

specifications snowmobileshocksoi:

• for models: 850, Summit
• for makes: Skidoo, Ski-doo
• for years: 2017
• brand: Ski-doo
• mpn: 505074143
• orientation: Left Right
• type: Spindle

shipping snowmobileshocksoi:

• carrier: USPS, UPS
• transit: 2-6 Days
• class: Standard, Expedited
• type: Calculated
• service: USPS Ground Advantage, USPS Priority Mail, UPS Ground
• cost: $11.31

general snowmobileshocksoi:

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

payments snowmobileshocksoi:

• wallet: Paypal
• credit card: Visa
• other

seller snowmobileshocksoi:

• # reviews: 40634
• rating: 99.7%
• city: Hayden, Idaho

offer snowmobileshocksoi:

• sold: 0
• started: March 11, 2026
• quantity: 1
• options: Ship-to-home
• availability: In Stock

returns snowmobileshocksoi:

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

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