VVT Solenoid Oil Seal for Nissan/Infiniti Engines

Why this seal is needed

This compact gasket sits between the camshaft oil control solenoid and the timing cover. It seals pressurized oil galleries that drive variable valve timing, keeping oil pressure stable for precise cam phasing. A healthy seal means smooth idle, strong mid‑range power, clean engine bay, and longer component life. It also prevents dust ingress and oil seepage onto belts and the alternator.

How it works

Built from heat‑resistant elastomer on a rigid carrier, the seal compresses under the solenoid flange when torqued. Shaped ports align with the OCV passages to route oil to the cam phaser while blocking return paths. With proper sealing, the ECU can modulate oil flow quickly via the solenoid, delivering fast timing response and stable advance/retard control ️.

When the seal fails ⚠️

If it’s cracked, flattened, or cut, expect wet spots around the front cover, burnt‑oil smell, drips, rough idle, loss of power, start‑up rattle, and higher fuel use. The ECU may set P0011/P0021 and turn on the MIL. Ongoing leaks can starve the phaser, accelerating chain and sprocket wear. Replace at the first sign of seepage for reliable timing and clean performance .

Compatibility

• Q70/M
• Q40/G Sedan
• Qx70/Fx
• M35/45
• G37 Sedan
• Qx50/Ex
• Q50
• Q60/G Coupe
• Q60/G Convertible
• Qx60/Jx
• M