WISECO 4989M10100 Piston Kit Oversized Comp 193564138675 1.00MM 101.92MM 10.5

( Brand: Wiseco ), ( Manufacturer Part Number: 4989M10100 ), ( Part Type: Piston ), ( California Prop 65 Warning: Warning ), ( UPC: 193564138675 )

Review WISECO Piston Kit 1.00mm Oversized To 101.92mm 10.5 Comp

The WiseCo 4989M10100 piston kit is an excellent upgrade solution for those seeking improved engine performance in their applications. This piston kit is specifically designed for engines with a bore size of 101.92mm and a stroke length of 10.5 inches, making it suitable for various applications.

This piston kit comes with 4 oversized pistons, each with a diameter of 1.00mm larger than the standard pistons. This oversizing increases the piston's contact area with the cylinder wall, reducing friction and heat transfer. As a result, the engine can operate more efficiently and last longer.

The pistons are made of forged aluminum alloy, ensuring strength and durability. They feature a flat top design with a dish shape at the center, which optimizes the combustion process by reducing the compression height and increasing the power stroke. The piston skirts have a full-floating design, which reduces friction between the piston and the cylinder wall, leading to smoother engine operation and improved fuel efficiency.

The piston kit comes with piston rings, including a compression ring, an oil control ring, and a top ring. These rings are designed to maintain proper sealing between the piston and the cylinder wall, ensuring optimal engine performance and preventing oil leaks.

The WiseCo 4989M10100 piston kit also includes piston pins, which are made of high-strength steel. These pins have a chrome molybdenum coating to prevent wear and ensure a snug fit in the piston. The piston kit comes with clips to securely hold the piston pins in place.

Overall, the WiseCo 4989M10100 piston kit is an affordable and effective way to upgrade the performance of your engine. Its oversized pistons, forged aluminum alloy construction, and optimized piston design make it a valuable addition to any engine build or rebuild project.

Wiseco 4989M10100 Piston Kit: A Comprehensive Analysis

The Wiseco 4989M10100 piston kit is a popular choice among engine builders and racers due to its high-performance design. In this analysis, we will discuss the key features, advantages, and potential drawbacks of this piston kit, followed by a conclusive recommendation.

1. Oversized pistons: The Wiseco 4989M10100 piston kit comes with 1.00mm oversized pistons, which provide better clearance for larger rings and increased compression.

2. 10.5:1 compression ratio: This piston kit offers a high compression ratio, enhancing engine performance and power output.

3. Forged pistons: The pistons are made from forged aluminum, ensuring superior strength and durability.

1. Enhanced performance: The oversized pistons and high compression ratio result in increased engine performance and power output.

2. Improved ring life: The increased clearance provided by the oversized pistons ensures longer ring life, reducing the need for frequent ring changes.

3. Durability: The forged aluminum pistons offer superior strength and durability, making them suitable for high-performance applications.

1. Cost: The Wiseco 4989M10100 piston kit is a premium product and can be quite expensive compared to stock pistons.

2. Complex installation: Installing oversized pistons requires careful preparation and precision, making it a complex process that may require professional assistance.

The Wiseco 4989M10100 piston kit is an excellent choice for those seeking high-performance gains and improved durability in their engine. Its oversized pistons, high compression ratio, and forged aluminum construction make it a reliable choice for racers and engine builders. However, its cost and complex installation process may be deterrents for some.

If you are looking to build a high-performance engine or compete in racing events, the Wiseco 4989M10100 piston kit is an excellent investment. Its superior strength, durability, and performance advantages make it worth the additional cost and installation complexity. However, for those with more modest performance goals or a tighter budget, stock pistons may be a more suitable option.

Details:

Shipping available to USA only. Note: All Wiseco piston kits are supplied with Piston, Ring and cir clips. Wiseco 4-Stroke Piston Kit 4989M10100: Price. Simpson Mod Bandit Replacement Helmet Face shield thorn22861 395 , the part looks good same as mind.

Note: Image for reference only. Fast shipping. Model 4989M10100. Armor glide skirt coating provides reduced friction.

Top End Bearings must be purchased separately. Actual product may vary according to vehicle. Kit includes piston, rings, wrist pin and cir clips. Wrist Pins are included unless noted.

Shipping requires a street address. Note: Oversize requires cylinder sleeking. FITS:HONDA XR 650L 1993 - 2017 ; HONDA 1997 1999 ; 2020 ; 70R 1998 ; XR650L 2021 Specifications: BRAND Wiseco. Race ready dome design for improved combustion flow.

part #: 4989m10100 price

• $203.97

specifications pistondon:

• brand: Wiseco
• mpn: 4989m10100
• part type: Piston
• california prop 65 warning: Warning
• upc: 193564138675

offer pistondon:

• availability: In Stock
• started: June 26, 2025
• sold: 0
• options: Ship-to-home
• quantity: 6

returns pistondon:

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

seller pistondon:

• city: San Bernardino, California
• rating: 98.4%
• # reviews: 275954

general pistondon:

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

shipping pistondon:

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

payments pistondon:

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

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