Valve Cover Seal for Infiniti/Nissan Engines ️

This high-temp rocker cover gasket keeps engine oil where it belongs — inside the head. Molded elastomer with precise ribs forms a tight barrier between the aluminum cover and the cylinder head, preventing leaks, protecting ignition components, and keeping the crankcase ventilation system stable. Built to tolerate heat cycles, vibration, and oil chemistry for long service life.

Why You Need It

A fresh valve cover seal stops oil mist and drips, avoids burning smells, shields coil packs and plug tubes from contamination, and helps maintain steady idle by preventing vacuum disturbances at the cover junction. It’s an inexpensive fix that preserves engine cleanliness and reliability.

How It Works

Seating in the cover groove, the gasket compresses evenly when bolts are torqued, creating an elastomeric seal. Corner points around cam caps may use tiny RTV beads to reinforce sealing in sharp transitions.

What Happens If It Fails ⚠️

Expect oil seepage on the head and exhaust manifold, burning odor, light smoke, oil in spark plug wells causing misfires, and gradual oil level drop. Prolonged leaks can damage coils and soften hoses.

Install Tips ✅

Clean mating faces, remove old RTV, degrease, place the gasket dry (RTV only at factory-corner points),then torque bolts in a crisscross pattern to spec. Recheck after a few heat cycles.

Compatibility

• QX70/FX
• Q70/M