1. Pistons, Rings & Piston Kits Products
  2. sku: 9388812168986771
  3. JE PISTONS 400173

JE PISTONS 400173 Piston Kit 193564569332 4.075 4.625 11.5

fits model: M8, Cr.

400173 Je Pistons Piston Kit 4.075 Inch Bore 4.625 Stroke Fits 11.5 1 Cr M8 - Part

( Brand: Je Pistons ), ( Manufacturer Part Number: 400173 ), ( Part Type: Piston ), ( UPC: 193564569332 )

Review JE PISTONS Piston Kit 4.075 Inch Bore 4.625 Stroke Fits 11.5 Part fits M8 CR

The Je Pistons 401733 piston kit is an excellent choice for those seeking high-performance replacement pistons for their engine. This kit is specifically designed to fit engines with a piston bore range of 4.075 inches to 4.625 inches and a connecting rod length of 11.5 inches, making it suitable for various applications where a crankshaft stroke of 8 inches is required.

Each piston in this kit is meticulously crafted using forged aluminum alloy. This material offers superior strength and durability, ensuring reliable performance even under the most demanding conditions. The piston crowns are designed with a compression height that provides optimal combustion efficiency and power output.

The piston skirts are engineered with a unique design that reduces friction between the piston and the cylinder wall. This results in less wear and tear, ensuring longer piston life and improved engine efficiency. The piston rings are included in the kit and are designed to provide a perfect seal, preventing combustion gases from escaping and ensuring optimal engine performance.

The piston pins are made of chrome molybdenum steel, offering superior strength and resistance to wear and fatigue. The piston pin bore is precision machined to ensure a perfect fit and minimize any play, providing maximum engine stability and reliability.

The piston kit comes with all necessary hardware, including piston clips, piston pin bushings, and piston pin retainers. This makes the installation process straightforward and hassle-free, ensuring that you can get your engine back up and running as soon as possible.

In summary, the Je Pistons 401733 piston kit is a high-quality, reliable, and durable solution for those seeking replacement pistons for their engine. Its precision engineering, superior materials, and included hardware make it an excellent choice for those looking to enhance their engine's performance and longevity.

Pros and Cons of Buying Je Pistons 400173 Piston Kit (4.075-4.625, 11.5 cr m8)

The Je Pistons 400173 piston kit is a popular choice for those seeking high-performance upgrades for their engines. Here are the key pros and cons to consider before making a purchase.

Pros:

1. Enhanced engine performance: The forged pistons offer increased strength and durability, allowing for higher compression ratios and improved power output.

2. Custom fit: This kit is designed specifically for engines with a bore size of 4.075 to 4.625 inches and a stroke of 11.5 inches, ensuring a precise fit.

3. High-quality materials: Je Pistons uses top-grade materials, including forged pistons made from high-tensile alloys, ensuring long-lasting performance.

4. Engine protection: The pistons are designed to withstand the rigors of high-performance driving, helping to protect your engine from potential damage.

5. Improved fuel efficiency: By increasing engine performance, the Je Pistons 400173 kit can help improve fuel efficiency, potentially saving you money in the long run.

Cons:

1. Cost: Forged pistons are more expensive than their cast counterparts. This kit may not be affordable for those on a tight budget.

2. Installation complexity: Installing the new pistons and related components requires specialized tools and skills, which may add to the overall cost and time investment.

3. Potential for engine modifications: Installing new pistons may necessitate additional engine modifications to achieve optimal performance, increasing both cost and complexity.

4. Risk of damage: As with any engine upgrade, there is a risk of damage during installation or use. Proper installation and maintenance are crucial to minimize this risk.

Conclusion:

The Je Pistons 400173 piston kit offers numerous benefits for those seeking improved engine performance, custom fit, and enhanced durability. However, the higher cost, installation complexity, and potential for engine modifications are important considerations. Ultimately, the decision to purchase this kit depends on your budget, mechanical skills, and desired performance gains. If you are comfortable with the investment and can handle the installation process, the Je Pistons 400173 kit can provide significant benefits for your engine.

Recommendation:

If you decide to purchase the Je Pistons 400173 piston kit, be sure to thoroughly research the installation process and gather all necessary tools and parts. Consider seeking professional assistance if you lack the necessary experience or skills. Additionally, ensure your engine is in good condition before installing the new pistons to minimize the risk of damage. Finally, always follow proper installation procedures and maintain the pistons according to the manufacturer's recommendations for optimal performance and longevity.

Details:

The forged construction ensures consistent performance and resistance to thermal stress, making them ideal for both street racing applications. Offset pins are incorporated to reduce piston rock, minimize operating noise, and improve overall engine stability. This kit includes two Pistons, premium ring packs, wrist pins, and wire locks, providing all the components necessary for a reliable installation. Suitable for engines with a 4.075-inch bore and 4.625-inch stroke, compression ratio of 11.5:1, this piston kit is engineered to meet the demands high-performance builds.

Designed for fitment with compatible engine model's, these Pistons deliver enhanced strength, reduced operating noise, and improved sealing optimal performance durability.Features:Forged 2618-T6 aluminum construction durability strength Skirt coating reduces friction wear during operation Offset pins decrease piston rock noise Notched skirts provide clearance at bottom dead center Accumulator groove enhances combustion seal better performance Includes two Pistons, premium ring packs, wrist pins, wire locks The JE Pistons Piston Kit part number 400173 is designed high-performance engines requiring precision. Notched skirts provide optimal clearance at bottom dead center, preventing piston contact and ensuring consistent movement within the cylinder bore. Each piston includes a skirt coating that reduces operating friction and wear, contributing to longevity smooth operation. An accumulator groove beneath the top ring helps trap combustion gases, promoting a more positive and consistent seal for improved power output efficiency.

Crafted from 2618-T6 forged aluminum, these Pistons feature an optimized grain flow for enhanced strength and reliability under demanding conditions.

part #: 400173 price

  • $624.99

specifications pistondon:

  • for models: M8, Cr
  • brand: Je Pistons
  • mpn: 400173
  • part type: Piston
  • upc: 193564569332

shipping pistondon:

  • type: Fixed
  • service: FedEx Ground / FedEx Home Delivery
  • cost: $0.00
  • class: Standard
  • transit: 4-10 Days
  • carrier: FedEx

general pistondon:

  • condition: New
  • Motorcycle Scooter Parts Accessories > Engines Engine Parts > Pistons, Rings Piston Kits

payments pistondon:

  • other
  • wallet: Apple-pay
  • credit card: Discover

offer pistondon:

  • quantity: 3
  • sold: 0
  • availability: In Stock
  • options: Ship-to-home
  • started: December 19, 2025

seller pistondon:

  • city: Largo, Florida
  • rating: 99.4%
  • # reviews: 31254

returns pistondon:

  • paid by: Seller
  • time: 30 Days
  • policy: Returns Accepted
for models: m8, cr, part type: piston,
category: motorcycle parts > motorcycle scooter parts accessories > engines engine parts > pistons, rings piston kits, sku: 9388812168986771,

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5 offers $624.99–$624.99 USD
  • Offer #1: $624.99 price + $0.00 shipping estimate = $624.99* total. Piston Kit - 4.075" Bore - 4.625" Stroke - 11.5:1 CR - 121" M8.FREE SHIPPING
  • Offer #2: $624.99 price + $0.00 shipping estimate = $624.99* total. Crafted from 2618-T6 forged aluminum, these pistons feature an optimized grain flow for enhanced strength and reliability under demanding conditions. The JE Pistons Piston Kit part number is designed for high-performance engines requiring durability and precision.FREE SHIPPING
  • Offer #3: $624.99 price + $12.99 shipping estimate = $637.98* total. An accumulator groove beneath the top ring captures combustion gases, promoting a more consistent seal and boosting overall engine performance. MPN: ,.+$12.99 shipping
  • Offer #4: $624.99 price + $0.00 shipping estimate = $624.99* total.FREE SHIPPING
  • Offer #5: $624.99 price + $0.00 shipping estimate = $624.99* total. Skirt coating reduces opertating friction and wear. JE PISTONS 0910-7022 Piston Kit 4.075" bore - 4.625" stroke - 11.5:1 cr - 121" m8.FREE SHIPPING

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