Model Compatibility: Fits CRF250R motorcycles manufactured from 2010 through 2017 as a direct replacement cylinder block component.
Technical Specification: Features a cylinder bore diameter of 76.8mm to match the specification for this engine application.
Part Number Reference: Replaces part number 12100-KRN-A40 used in the CRF250R 2010–2017 engine assembly.
Usage Application: Designed for off-road and pit bike use consistent with the intended operational environment of the CRF250R.
Functional Purpose: Restores cylinder block geometry and fitment when installed according to factory service procedures.
Description
This cylinder block is compatible with CRF250R models from 2010 to 2017. It features a bore diameter of 76.8mm and is designed as a direct replacement for OEM part numbers 12100-KRN-A40 and 12100-KRN-A60. The cylinder block is constructed from aluminum with ceramic material integrated into the inner wall. Dimensions are 85mm x 82mm x 76.8mm x 52mm x 35mm. It weighs 762 grams and has a silver finish. This part is intended for off-road and pit bike applications. One cylinder block is included per package. Installation instructions are not provided. This is a non-OEM replacement part. Any trademarks or model numbers cited are used strictly to demonstrate compatibility.