1. Pistons, Rings & Piston Kits Products
  2. sku: 5676005724934693
  3. WISECO 478M08750

WISECO 478M08750 Piston

fits model: Yz490, It490. year: 1983–1984.

478m08750 Wiseco Piston M08750 1982-1983 Yz490 And 1983-1984 It490

( Brand: Wiseco ), ( Manufacturer Part Number: 478M08750 ), ( Alt Mpn 3: Wis478m08750 ), ( Alt Mpn 2: 478p2 ), ( Alt Mpn 1: 103859 ), ( Vintage Part: No ), ( Product Type 2: Piston Kits Components ), ( Units: Each ), ( Engine Type: 2-stroke ), ( Type: Piston Kit ), ( Piston Material 2: Forged ), ( Product Type: Piston ), ( Category 1: Top End Kits / Pistons / Rings ), ( Piston Material: Aluminum Alloy ), ( Ride Type 2: Motorcycle Offroad ), ( Bore Oversize 2: 0, 50 Mm ), ( Package Width: 5.00 ), ( Package Weight: 1.1800 ), ( Country/region Of Manufacture: United States ), ( Ride Type 1: Motorcycle Adventure Touring / Dual-sport ), ( Performance Part: Yes )

Review WISECO Piston M08750 1982 And fits YZ490 IT490 1983–1984

Introducing the WiseCo 478M08750 piston, an essential upgrade for the 1982-1983 YZ490 and 1983-1984 IT490 motorcycles. This high-performance piston is specifically designed to deliver enhanced power, increased durability, and improved efficiency for your two-stroke engine.

The WiseCo 478M08750 piston is made of a forged aluminum alloy, ensuring strength and reliability even under the most demanding riding conditions. Its compression height of 10.8 mm and total height of 25.6 mm are optimized for the specifications of the YZ490 and IT490 engines, ensuring a perfect fit and seamless integration.

One of the standout features of this piston is its enhanced cooling capabilities. The piston crown is engineered with a unique design that provides improved heat dissipation, helping to keep the engine running cooler and more efficiently. This is particularly beneficial in high-performance riding scenarios, where sustained power output and consistent engine temperature are crucial.

Additionally, the WiseCo 478M08750 piston is designed to provide increased power output. The piston's optimized compression ratio, in combination with the engine's other components, helps to boost horsepower and torque, resulting in improved acceleration and overall performance.

The piston skirt on this WiseCo component is designed with a precise fit to the cylinder bore, ensuring minimal clearance and reducing the potential for piston slap and engine wear. Furthermore, the piston rings are manufactured from high-quality materials, ensuring a tight seal and efficient combustion.

This piston also features a balanced design, which helps to reduce vibrations and engine harmonic resonances, leading to a smoother and more enjoyable riding experience. Moreover, its precision machining ensures that all dimensions and surfaces are consistent, ensuring accurate engine timing and optimal engine performance.

In summary, the WiseCo 478M08750 piston is an excellent upgrade for the 1982-1983 YZ490 and 1983-1984 IT490 motorcycles. Its forged aluminum alloy construction, enhanced cooling capabilities, increased power output, balanced design, and precise machining make it a high-performance and reliable component for your two-stroke engine. Upgrade your motorcycle with the WiseCo 478M08750 piston and experience the difference in power, durability, and performance.

Wiseco 478M08750 Piston for YZ490 (1982-1983) and IT490 (1983-1984): An Informed Decision

The Wiseco 478M08750 piston is a popular aftermarket replacement option designed for the YZ490 (1982-1983) and IT490 (1983-1984) motorcycles. This piston boasts several advantages but also comes with potential drawbacks. In this analysis, we will discuss the pros and cons based on performance, durability, and cost.

Pros:

1. Enhanced Performance: The Wiseco piston is designed to provide increased power and torque, resulting in improved overall engine performance. This can lead to a more responsive and smoother riding experience.

2. Forged Construction: The piston's forged construction ensures strength and durability, allowing it to withstand the rigors of off-road riding and racing.

3. Improved Ring Land Area: The piston's ring land area is increased, which helps prevent ring groove wear and extends the life of the piston rings.

Cons:

1. Higher Cost: Compared to OEM (original equipment manufacturer) pistons, aftermarket pistons like the Wiseco 478M08750 tend to be more expensive. This might be a deterrent for some riders.

2. Potential Clearance Issues: Depending on the specific motorcycle and modifications, clearance issues may arise when installing aftermarket pistons, such as interference with the crankshaft or piston pin.

3. Requires Reboring: To ensure proper fit and performance, the cylinder bore may need to be rebored before installing the Wiseco piston. This is an additional cost and time commitment.

Conclusion:

The Wiseco 478M08750 piston presents several advantages, including enhanced performance, forged construction, and improved ring land area. However, it also comes with cons such as a higher cost, potential clearance issues, and the need for reboring. Ultimately, the decision to purchase this aftermarket piston depends on your budget, performance goals, and the specific requirements of your motorcycle.

Recommendation:

If you're an aggressive rider seeking improved performance, the Wiseco 478M08750 piston is a worthwhile investment. However, be prepared for the additional cost and potential modifications needed during installation. If cost is a concern, you may want to consider other aftermarket or OEM piston options. Ultimately, it is essential to weigh the pros and cons carefully and consult with a professional mechanic to ensure a successful installation.

Details:

NEW OLD STOCK, PART #: 478M08750, FITMENT: 1982 - 1983 YZ490 1983 1984 IT490 478M08750.

part #: 478m08750 prices

  • $219.99-$280.83

specifications pistondon:

  • for models: Yz490, It490
  • for years: 1983-1984
  • brand: Wiseco
  • mpn: 478m08750
  • alt mpn 3: Wis478m08750
  • alt mpn 2: 478p2
  • alt mpn 1: 103859
  • vintage part: No
  • product type 2: Piston Kits Components
  • units: Each
  • engine type: 2-stroke
  • type: Piston Kit
  • piston material 2: Forged
  • product type: Piston
  • category 1: Top End Kits / Pistons / Rings
  • piston material: Aluminum Alloy
  • ride type 2: Motorcycle Offroad
  • bore oversize 2: 0, 50 Mm
  • package width: 5.00
  • package weight: 1.1800
  • country/region of manufacture: United States
  • ride type 1: Motorcycle Adventure Touring / Dual-sport
  • performance part: Yes

shipping pistondon:

  • type: Calculated
  • cost: $6.89
  • transit: 5-11 Days
  • service: UPS Ground Saver
  • class: Economy
  • carrier: UPS

payments pistondon:

  • other
  • credit card: Diners-club
  • wallet: Paypal

seller pistondon:

  • rating: 97.5%
  • city: Fairfield, Illinois
  • # reviews: 123

offer pistondon:

  • sold: 0
  • availability: In Stock
  • quantity: 1
  • options: Ship-to-home
  • started: April 10, 2025

returns pistondon:

  • policy: No Returns

general pistondon:

  • Motorcycle Scooter Parts Accessories > Engines Engine Parts > Pistons, Rings Piston Kits
  • condition: New
for models: yz490, it490, for years: 1983-1984, alt mpn 3: wis478m08750, alt mpn 2: 478p2, alt mpn 1: 103859, vintage part: no, product type 2: piston kits components, units: each, engine type: 2-stroke, type: piston kit, piston material 2: forged, product type: piston, category 1: top end kits / pistons / rings, piston material: aluminum alloy, ride type 2: motorcycle offroad, bore oversize 2: 0, 50 mm, package width: 5.00, package weight: 1.1800, country/region of manufacture: united states, ride type 1: motorcycle adventure touring / dual-sport, performance part: yes,
category: motorcycle parts > motorcycle scooter parts accessories > engines engine parts > pistons, rings piston kits, sku: 5676005724934693,

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