Motorcycle Cylinder Head Gasket For Honda CR125R CR 125 R 1988-1999 Engine End Parts OEM matching part number 12251-KZ4-701, Fit For Honda CR125R 1988 to 1999 2-stroke motocross single cylinder end combustion assembly CNC stamped contour with aligned mounting bolt holes circulation ports; direct bolt-on replacement without grinding or reshaping during engine rebuild Multi-layer composite with temperature coating withstands fierce off-road RPM cycling rough trail vibration, anti-warp anti-blowout Forms airtight compression sealing barrier to eliminate power loss blow-by leakage coolant seepage for consistent motocross track Uniform calibrated thickness ensures flush contact between cylinder barrel head; prevents persistent combustion leaks extends top-end overhaul cycle