The Hot Rods K045 Main Bearing and Seal Kit is designed for rebuilding the crankshaft assembly in select 2005–2014 Yamaha YZ125 two-stroke motorcycles. Manufactured by Hot Rods and identified by manufacturer and vendor part number K045, this kit provides the essential bearing and seal components needed to support a reliable engine rebuild when used with the appropriate Hot Rods crankshaft assembly.
Designed for fitment on 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, and 2014 Yamaha YZ125 models, the K045 kit is intended for applications requiring replacement main bearings and seals. Verify the motorcycle model year and engine configuration before installation to ensure proper compatibility. Professional installation is recommended, particularly when servicing crankshaft components or completing a full bottom-end rebuild.
Hot Rods components are built for serviceability, allowing the applicable crankshaft assembly to be completely rebuilt rather than replaced. This kit is suitable for maintenance, restoration, and performance-oriented engine work where dependable fit and proper bearing support are required. The Hot Rods K045 kit is supplied for use with compatible YZ125 applications and should be installed according to the manufacturer’s procedures and applicable service specifications.
Features:
- Completely rebuildable design supports serviceable crankshaft assembly maintenance
- Includes main bearings for compatible Hot Rods Banshee applications
- Main bearing and seal kits are available separately for replacement or rebuild service
- Crankshaft assembly is trued and ready to install after the required main bearings and seals are fitted
- Fits 2005–2014 Yamaha YZ125 models
Fitment:
2005 Yamaha YZ125
2006 Yamaha YZ125
2007 Yamaha YZ125
2008 Yamaha YZ125
2009 Yamaha YZ125
2010 Yamaha YZ125
2011 Yamaha YZ125
2012 Yamaha YZ125
2013 Yamaha YZ125
2014 Yamaha YZ125
2015 Yamaha YZ125
2016 Yamaha YZ125
2017 Yamaha YZ125
2018 Yamaha YZ125
2019 Yamaha YZ125
2020 Yamaha YZ125
2020 Yamaha YZ125X
2021 Yamaha YZ125
2021 Yamaha YZ125X
2022 Yamaha YZ125
2022 Yamaha YZ125X
2023 Yamaha YZ125
2023 Yamaha YZ125X
2024 Yamaha YZ125
2024 Yamaha YZ125X
2025 Yamaha YZ125
2025 Yamaha YZ125X