What are the dimensions of these main bearings?

Each main bearing in this kit measures 30mm ID (inner diameter), 72mm OD (outer diameter), and 19mm in width. These dimensions are critical for proper fitment within the engine block.

Where are these bearings manufactured?

These Wiseco main bearings are manufactured by many of the same suppliers that produce parts for original equipment manufacturers (OEMs), including leading Japanese companies. They are then inspected for accuracy, function, and cleanliness.

What is the benefit of using bearings made by OEM suppliers?

Using bearings made by the same suppliers as OEM parts means they are manufactured to similar specifications and quality standards. This ensures efficient and reliable engine service, as they are designed to integrate seamlessly with your engine's components.

Wiseco Main Bearing Kit (2) 30 x 72 x 19mm

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Specifications

Brand: Wiseco
Part #: BK5000
UPC: 193564104137

Wiseco Main Bearing Kit (2) 30 x 72 x 19mm

Name: Wiseco Main Bearing Kit (2) 30 x 72 x 19mm
Brand: Wiseco
Price: 98.09 USD
Availability: InStock

$98.09

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) 30 x 72 x 19mm. Manufactured by OEM suppliers for reliable engine service.

Key Features

Fits many Gas Gas, Suzuki, and Yamaha models.
Includes two main bearings (30 x 72 x 19mm).
Manufactured by the same suppliers to 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

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Will this fit your vehicle?

Product Details

This kit includes two main bearings, each measuring 30mm ID, 72mm OD, and 19mm width. These bearings are made by the same suppliers that produce parts for original equipment manufacturers, including leading Japanese companies. They are carefully inspected for accuracy, proper function, and cleanliness to ensure your engine runs efficiently and reliably.

The precision machining and finishing of these bearings, combined with high-quality materials, mean they are built to last. Because they come from the same sources as OEM parts, you can trust them to perform as expected in a wide range of vehicles. This makes them a solid option for anyone rebuilding or repairing their engine.

This kit is designed to fit many different models, including popular choices like the Yamaha YFZ450 and WR450F, as well as the Suzuki RMZ450. Always check the full fitment list to confirm compatibility with your specific vehicle.