
Honda OEM
OEM Honda CBR250R / CBR300R Cylinder Head Gasket
OEM Honda CBR250R / CBR300R Cylinder Head Gasket
1860 Obispo Avenue
1860 Obispo Avenue
C
Signal Hill CA 90755
United States
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Genuine Honda Factory Replacement – Perfect Fit for CBR250R & CBR300R
Restore peak engine performance and reliability with this authentic Honda OEM Cylinder Head Gasket (Part Number: 12251-KYJ-901). Engineered directly by Honda for precise fitment and long-lasting sealing integrity, this is the exact same gasket used in factory assembly — no compromises on quality or compatibility.
Compatible Models (Direct Fit):
- Honda CBR250R (2011–2013 / 2014 models in some markets)
- Honda CBR300R (2015–2024+)
- Also fits many related 250cc/300cc Honda singles including:
- CB300F (2015–2018+)
- CRF250L / CRF250 Rally (2017–2020+)
- CRF250M
- CMX300 (Rebel 300, 2017–2024+)
- CB300R (2019+ in select markets)


