What does the +0.25mm sizing mean for these bearings?

The +0.25mm sizing indicates that these bearings are intended for use when the crankshaft journals have been machined down by 0.25mm. This is a common practice during engine rebuilds to ensure proper oil clearance with worn or re-ground crankshafts.

What is the XP material used in these bearings?

The XP material is a high-performance overlay developed by King Engine Bearings. It is designed to offer enhanced strength and durability, making it suitable for engines that experience higher loads and temperatures.

Are these bearings compatible with a stock crankshaft?

These bearings are specifically sized at +0.25mm, meaning they are not compatible with a stock, un-machined crankshaft. They are designed for use with a crankshaft that has been professionally ground to a 0.25mm undersize.

Specifications

Brand: King Engine Bearings
Part #: MB1336XP0.25-5
UPC: 611500623264

King Engine Bearings Kawasaki ZX-14 (2006-2011) #1/3/5 (Size +0.25mm) Main Bearing Set

Name: King Engine Bearings Kawasaki ZX-14 (2006-2011) #1/3/5 (Size +0.25mm) Main Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-kawasaki-zx-14-2006-2011-1-3-5-size-0--t14-770268
Price: 11.52 USD
Availability: BackOrder

$11.52

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Key Features

This set includes main bearings #1, #3, and #5 for the Kawasaki ZX-14.
Bearings are sized +0.25mm, intended for use with a crankshaft ground to this undersize.
Constructed with King's unique XP material for improved strength and durability.
Designed to handle higher loads and temperatures common in performance engines.

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About this part

Product Details

This main bearing set from King Engine Bearings is built with a unique XP material, a high-performance overlay that offers improved strength and durability for demanding applications. Specifically, these bearings are sized at +0.25mm, meaning they are intended for use when the crankshaft journals have been machined down by that amount during an engine rebuild. This set includes the #1, #3, and #5 main bearings, crucial components that support the rotating crankshaft within the engine block.

The XP material is designed to handle higher loads and temperatures compared to standard bearing materials. This makes them a solid option for rebuilding the engine in your Kawasaki ZX-14, ensuring reliable performance. King Engine Bearings is a well-known name in performance engine components, and this set reflects their focus on providing well-built parts for enthusiasts and racers alike.

When rebuilding your ZX-14's engine, using the correct size bearings is critical for proper oil clearance and engine health. These +0.25mm bearings are meant to be paired with a crankshaft that has been ground to this specific undersize. Always refer to your Kawasaki service manual for detailed installation procedures and torque specifications.