The 47mm Big Bore Cylinder Kit is designed specifically for MS291, MS291C, MS271, and MS271C Chainsaws. This kit features a 47mm big bore bore diameter, ensuring a smooth and efficient engine rebuild or top end assembly. It's compatible with the 1141 020 1206 cylinder, making it a versatile solution for various chainsaw models. The kit comes with oil seals, ensuring a tight and leak-proof fit. This product enhances the performance and longevity of your chainsaw engine, making it a must-have for experienced chainsaw owners and DIY enthusiasts.