Supertech exhaust valve stem seals for the Toyota G16E-GR engine are sold as a set of six to match the engine's exhaust valves. These seals serve to limit oil migration past the valve guides on the exhaust side, making them suitable for routine engine service or cylinder head rebuilds where correct exhaust-side stem sealing is required for the G16E-GR.
Supertech Toyota G16E-GR Exhaust Valve Stem Seal - Set of 6