Complete and matched engine case set P/N 77030100144 removed from a 2007 250XCF. Includes everything pictured. This case set will fit KTM 250cc RC4 engine bikes. The crankshaft chamber has some scuffing and nicks, possibly from a piston pin circlip or some other piece of debris that made its way there. I have shown this in the close-up photos. This case has the 17mm aft mounting bore. S/N 7-770*14363*.