79mm Big Bore Cylinder Piston Kit 310cc Fit Honda Crf 250 F Crf 250f 2019-2025

  

Kit includes cylinder, piston, rings, pin, clips & top end gasket kit (you get exactly what is pictured). The cylinder is made of aluminum for good cooling with an internal cast iron jacket (unlike which has a nicasil treatment). Piston is anodized for superior heat resistance and longer lifespan.

The gaskets use performance materials to increase durability and provide greater reliability. Includes all gaskets pictured to rebuild top end. Kit is for big bore size - 79 mm, 17mm steel piston pin. The compression is designed for use with the original cylinder head.

When installing, the smaller bearing on the factory camshaft has to be removed and transferred to the new cam. This kit is excellent as a low-cost replacement for defects in the original cylinder. Specifications: Condition: Aftermarket 100% Brand New Quantity: 1 Set Material: Aluminum, Steel Displacement: 310cc Engine: 4-Stroke Cooling: Air-cooled Bore Type: Big Bore Bore diameter: 79mm Pin diameter: 17mm Pin Overall Length: 54mm Replacement Part Number: Cylinder: 12100-K31-900 Cylinder Base Gasket: 12191-K31-900 Cylinder Head Gasket: 12251-K31-901 Pin, Piston: 13111-K31-900 Circlips, piston (2): 13112-KPF-960 Chain Tensioner Gasket: 14560-KRM-840 Always compare part numbers to your parts schematics and cross reference appropriately. (Please Compare with Your faulty unit and the image we provided to Decide Fitment) Package Includes: 1x 79mm Cylinder 1x Piston 1x Piston Ring Set 1x 17mm Wristpin 1x Circlip(2) 1x Cylinder Base Gasket 1x Cylinder Head Gasket 1x Chain Tensioner Gasket Comes exactly as pictured. Note: Carefully compare to your old parts to be sure this is the correct part for your machine.

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