Timing Chain Tensioner RH (WRX MY22+) Timing Chain Tensioner LH (WRX MY22+) Timing Chain Guide (WRX MY22+) Oil Level Seal - 15090KA000 Ring Back Up - 16677AA040 Oil Seal 50x63x7 - 806750090 O-Ring 8.8x1.9 - 806908080 O-Ring 14.2x1.9 - 806914120