The camshaft seals, along with the valve cover seals, ensure the top of your engine remains oil leak free. Ideally replaced when installing camshafts or replacing the timing belt. Recommended to be replaced every 100,000kms to ensure a clean and reliable engine.
WTFauto prefers Genuine Toyota engine oil seals for their excellent lifespan, unlike some inferior seals that can fail to keep all oil in, even when brand new. Toyota oil seals are made by NOK Japan, one of the most highly regarded oil seal manufacturers in the world.