What is the main function of engine main bearings?

Main bearings support the crankshaft within the engine block. They allow the crankshaft to rotate smoothly while handling the forces generated during combustion, ensuring efficient power transfer and engine longevity.

Are these bearings a direct replacement for OEM parts?

Yes, these bearings are manufactured by the same suppliers that produce parts for Original Equipment Manufacturers. They are designed to meet the same specifications for accuracy and function as OEM bearings.

What is the significance of the 25 x 62 x 17mm sizing?

This refers to the internal diameter (25mm), outer diameter (62mm), and width (17mm) of the bearing. This specific sizing is critical for proper fitment and function with the crankshaft and engine block of compatible motorcycle models.

Wiseco Main Bearing Kit (2) 25 x 62 x 17mm

1 / 7

Specifications

Brand: Wiseco
Part #: BK5006
UPC: 193564103765

Wiseco Main Bearing Kit (2) 25 x 62 x 17mm

Name: Wiseco Main Bearing Kit (2) 25 x 62 x 17mm
Brand: Wiseco
Price: 34.30 USD
Availability: InStock

$34.30

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Wiseco Main Bearing Kit (2) 25 x 62 x 17mm. Manufactured by OEM suppliers for reliable engine service.

Key Features

Fits multiple Kawasaki, Suzuki, and Yamaha motorcycle models.
Includes two main bearings, each measuring 25mm x 62mm x 17mm.
Manufactured by the same suppliers that produce parts for OEMs, including leading Japanese manufacturers.
Precision machined and finished with high-quality materials.
Inspected for accuracy, function, and cleanliness for reliable service.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

Secure CheckoutFast Shipping631-982-0042

Will this fit your vehicle?

Product Details

If you're rebuilding the bottom end of your motorcycle engine, getting the right main bearings is crucial for smooth operation and longevity. This Wiseco Main Bearing Kit includes two bearings, each measuring 25mm x 62mm x 17mm, designed to replace worn-out components and restore proper crankshaft support.

These bearings are made by the same suppliers that provide parts to major Original Equipment Manufacturers, including leading Japanese companies. Wiseco ensures each bearing is precisely machined and inspected for accuracy, function, and cleanliness. This attention to detail means you're getting a well-built part that will contribute to efficient and reliable engine service, helping to ensure your engine runs as it should.

This kit fits a wide range of popular off-road and dual-sport motorcycles from Kawasaki, Suzuki, and Yamaha, covering many models from the 1970s through the early 2000s. Always refer to your specific vehicle's service manual for detailed installation procedures and torque specifications.