At Herrin-Gear INFINITI we understand the importance of keeping your valve covers in good condition. These aluminum or plastic covers seal the top of your engine's cylinder heads and contain the valve train components. Valve covers maintain proper oil circulation around the valves, camshafts, and rocker arms while preventing contamination from entering the engine. When valve covers develop leaks or cracks, oil consumption increases and engine performance suffers from inadequate lubrication.

Understanding Valve Cover Function

Valve covers create an airtight seal over your engine's valve train using gaskets and sealing surfaces. The covers contain oil that lubricates the camshafts, valves, and timing components during engine operation. Proper sealing prevents oil leaks that can damage other engine components or create fire hazards. The Q50 uses precision-engineered valve covers that integrate with the engine's ventilation system to maintain proper crankcase pressure.

When Valve Covers Fail

Valve covers commonly fail between 80,000 and 120,000 miles due to gasket deterioration and material fatigue. Heat cycling causes gaskets to become brittle and lose their sealing properties. Oil leaks around the valve cover perimeter indicate gasket failure, while cracks in the cover itself require complete replacement. The QX80 and other V8 models may experience accelerated wear due to higher operating temperatures and increased thermal stress on sealing components.

Benefits of Genuine INFINITI Valve Covers

Authentic INFINITI valve covers use materials specifically formulated for your engine's operating conditions and thermal requirements. Generic aftermarket covers often lack proper fitment and may use inferior gasket materials that fail quickly. OEM covers maintain the exact clearances and mounting points required for proper timing belt operation and accessory fitment. We provide genuine INFINITI valve covers that ensure reliable sealing and long-term durability for your engine's protection.

The Herrin-Gear INFINITI parts team has all the parts you need to keep your ride looking and running great.