Select the exact brand, model, year and part number from Brand. Kit contents vary by option. ProX options marked bearings only do not include oil seals; other ProX options are bearing and seal kits. Confirm the original engine and selected part number before ordering.

Applicable models

• WRF450 (WR450F) 2003-2025 — BWX CBK122Y
• YFZ450 ATV (Carburetor) 2004-2013 — BWX CBK122Y
• YFZ450R ATV(Fuel Injected) 2009-2020 — BWX CBK170Y
• YFZ450X ATV(Fuel Injected) 2010-2011 — BWX CBK170Y
• YZ450FX 2016-2025 — BWX CBK122Y
• YZF450 (YZ450F) 2003-2024 — BWX CBK122Y

Kit options and contents

BWX CBK122Y

This kit includes:

• 2 x Main/Crank Bearings

BWX CBK170Y

This kit includes:

• 2 x Main/Crank Bearings

Images are for illustration purposes only, actual products may differ.

ProX options and contents

• YFZ 450 R 2009–2023 — bearings only; seals not included; ATV [23.CBS24009]

NB: Please note that because we sell across multiple platforms, stock availability cannot be guaranteed. If an ordered item is out of stock, it will be placed on backorder and dispatched as soon as it arrives. If an item is permanently unavailable, we will issue a full refund.

Additionally, as most of our products are imported, final pricing is subject to change without notice due to fluctuating exchange rates and shipping costs.

We appreciate your understanding and always strive to process and ship your orders as quickly as possible!