•Made of high-quality rubber, durable for long-term use •Features good water resistance, oil resistance, heat resistance, sealing, corrosion resistance and abrasion resistance •It's used to replace damaged or old sealing o-ring •Installation position: on the solenoid valve of the oil pump Note: •Before purchasing, please carefully check the model that the product is suitable for to prevent incompatibility in the later stage. Specification: •Product material: rubber •Large ring inner diameter: 35mm •Small ring inner diameter: 21mm Applicable models: •Engines: N40 N42 N46 N45 •Vanos E46 E60 E81 E82 E83 E84 E85 E87 E88 E90 E91 E92 Package included: •2 x Large O-Ring •2 x Small O-Ring •Other things not included