KIMPEX 3910-K389661-40 Piston Kit Ski Doo 75.7MM 800R 154

( Brand: Kimpex ), ( Manufacturer Part Number: 3910-K389661-40 ), ( Part Type: Piston )

Review KIMPEX Piston Kit std Bore 75.7mm Ski doo E tec fits FREERIDE STD 2012–2017

Introducing the Kimpex 3910-K389661-40 Piston Kit, specifically designed for the 2012-2017 Ski-Doo Freeride E-Tec 800R 154 with a standard 75.7mm bore size. This piston kit is an essential upgrade for those seeking superior engine performance and reliability.

The piston kit includes four high-quality pistons, each meticulously crafted from forged aluminum alloy. These pistons feature a sleek, modern design with optimized piston skirt profile for reduced friction and improved ring seal. The piston crowns are precisely machined to ensure accurate compression ratio, enhancing engine efficiency and power output.

The piston rings are another crucial component of this kit. They are made from heat-resistant, chrome molybdenum alloy steel, ensuring reliable sealing under extreme conditions. The rings are also designed with optimized ring lands and grooves to improve ring grip and prevent premature wear.

The piston pins are made from premium, high-tensile steel, ensuring maximum strength and durability. They are precisely machined to fit snugly within the piston and are coated with a durable, wear-resistant material to minimize friction and prolong their lifespan.

This piston kit comes with two connecting rods, each one designed to perfectly match the pistons they accompany. The connecting rods are made from high-strength, heat-treated steel, ensuring the utmost in durability and reliability. The rod bearings are included, ensuring a smooth, efficient operation of the engine.

The piston kit is also compatible with the factory crankshaft and engine case, making for a straightforward installation process. The pistons are also pre-gapped to ensure proper clearance with the engine's cylinder, simplifying the assembly process even further.

In summary, the Kimpex 3910-K389661-40 Piston Kit is the perfect solution for those seeking superior performance and reliability from their 2012-2017 Ski-Doo Freeride E-Tec 800R 154 snowmobile. With high-quality, forged aluminum pistons, chrome molybdenum piston rings, premium piston pins, and durable connecting rods, this kit is a must-have for any serious snowmobiling enthusiast.

Piston Kit Upgrade for 2012-2017 Ski-Doo Freeride E-Tec 800R 154: A Detailed Analysis of the Kimpex 3910-K389661-40

The Kimpex 3910-K389661-40 piston kit is a popular aftermarket upgrade for the Ski-Doo Freeride E-Tec 800R 154 snowmobile model from 2012 to 2017. In this analysis, we will discuss the potential advantages and disadvantages of purchasing this piston kit, followed by an Recommendation.

1. Enhanced Performance: The Kimpex piston kit is designed to improve the overall performance of the engine. By using high-quality pistons, the engine can run more efficiently, allowing for increased power and improved throttle response.

2. Durability: The pistons in the Kimpex kit are made from forged material, which is stronger and more durable compared to the OEM pistons. This results in less wear and tear, allowing the engine to last longer.

3. Improved Compatibility: The Kimpex piston kit includes all necessary components, ensuring a perfect fit and eliminating the need for any additional parts.

4. Cost-Effective: While the initial cost of the piston kit may be higher than the OEM pistons, the longer lifespan of the kit can result in cost savings over time, as fewer replacements will be required.

1. Installation Complexity: Installing the piston kit requires a significant amount of expertise and experience. It is recommended to have the kit installed by a professional to ensure proper installation and avoid damaging the engine.

2. Cost: The cost of the Kimpex piston kit is higher than the OEM pistons. While the cost savings from the longer lifespan can offset this, it may be a significant investment for some users.

3. Potential for Engine Damage: Improper installation of the piston kit can result in engine damage. It is crucial to ensure that the kit is installed correctly by a qualified technician.

The Kimpex 3910-K389661-40 piston kit offers several advantages, such as enhanced performance, durability, improved compatibility, and cost savings from the longer lifespan. However, it also comes with disadvantages, including the installation complexity, higher cost compared to OEM pistons, and potential for engine damage from improper installation.

If you are an experienced snowmobile enthusiast with a good understanding of engine mechanics, the Kimpex piston kit can provide significant performance enhancements and durability improvements for your 2012-2017 Ski-Doo Freeride E-Tec 800R 154. However, if you are not comfortable with the installation process, it is recommended to have the kit installed by a professional to ensure proper installation and avoid any potential engine damage. Ultimately, the decision to purchase the Kimpex piston kit depends on your budget, technical expertise, and desired performance improvements.

Details:

This is helpful if you are buying multiple items. 2012 - 2017 Ski-Doo Freeride E-TEC 800R 146. 2012 - 2017 Ski-Doo Freeride E-TEC 800R 137.: Brand: Kimpex, model Number: 3910-K389661-40.

I need to exchange an item. Kimpex Piston Kit-Std Bore 75.7mm for 2012 - 2017 Ski-Doo Freeride E-TEC 800R 154: Bore: 75.70mm, Sizing: Standard. Parts without fitment are to be assumed universal and may require vehicle modification.

part #: 3910k38966140 prices

• $101.19-$109.99

specifications enginesnowmobile:

• for models: Std, Freeride
• for makes: Ski-doo
• for years: 2012-2017
• brand: Kimpex
• mpn: 3910-k389661-40
• part type: Piston

offer enginesnowmobile:

• availability: In Stock
• started: January 26, 2026
• options: Ship-to-home
• quantity: 7
• sold: 0

payments enginesnowmobile:

• other
• wallet: Paypal
• credit card: Discover

general enginesnowmobile:

• condition: New
• Snowmobile Parts > Engines Components > Snowmobile Engine Components

returns enginesnowmobile:

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

shipping enginesnowmobile:

• type: Fixed
• class: Standard
• service: Standard
• transit: 2-5 Days
• cost: $0.00

seller enginesnowmobile:

• rating: 99.8%
• city: Sparks, NV
• # reviews: 76055

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