LEMASSON Engine Valve Covers for Nissan 4.0L V6 — Left & Right Replacement (Fits Frontier/Xterra/Pathfinder/NV)

LEMASSON left and right engine valve covers replace worn OEM covers on 4.0L Nissan engines to stop oil leaks, keep contaminants out, and restore proper sealing.

If your Nissan Frontier, Xterra, Pathfinder or NV series with the 4.0L V6 is leaking oil or showing dirt around the cylinder head, worn valve covers are a common cause. These LEMASSON replacement covers are molded from reinforced high-temperature plastic and engineered to fit the same bolt pattern and sealing surfaces as the original 13264-EA200/13264-EA210 parts. Installing new covers can reduce oil seepage, make engine bays cleaner, and help preserve the condition of ignition components and hoses beneath the covers.

How do these valve covers stop oil leaks on 4.0L Nissan engines?

The LEMASSON covers recreate the factory sealing surface and accept standard gaskets to re-establish a tight barrier between the head and the cover. With proper gasket installation and torqueing, they prevent oil from weeping onto spark plug boots, coils, and wiring. They also resist warping under normal engine temperatures to maintain a stable seal over time.

• Exact bolt-hole alignment matching OEM 13264-EA200 and 13264-EA210.
• Reinforced plastic resists heat-induced deformation.
• Designed for use with original or replacement valve cover gaskets.

Will these covers fit my Nissan model and year?

LEMASSON lists compatibility with Nissan Frontier (2005–2019), Xterra (2005–2015), Pathfinder (2005–2012) and NV1500/NV2500/NV3500 (2012–2019) that use the 4.0L V6 and the OEM part numbers 13264-EA200 / 13264-EA210. Always verify your vehicle’s engine code and the OEM part number before purchasing to ensure correct fitment. When in doubt, compare mounting holes, PCV locations and ignition coil layout against your current covers.

• Covers intended to replace 13264EA200 and 13264EA210 variants.
• Fits listed model-year ranges using the 4.0L VQ40DE engine.
• Check existing cover orientation and accessory openings for confirmation.

What are the material and durability benefits of these replacement covers?

Manufactured from a reinforced plastic compound, these covers are designed to tolerate engine bay heat and chemical exposure without cracking. The material choice lowers the risk of hairline fractures common in older, brittle covers and helps the cover retain its shape for consistent sealing. LEMASSON also provides a one-year warranty against manufacturing defects, giving a measure of post-sale protection.

• High-temperature resistant reinforced plastic construction.
• Reduced risk of cracking, leakage and premature failure.
• One-year warranty and available after-sales support.

How difficult is installation and what should I prepare?

Replacement is a moderate DIY job for someone comfortable with basic engine work: remove ignition coils/plug wires, unbolt the old covers, clean sealing surfaces, fit new gaskets and torque bolts to spec. If gaskets, bolts, or PCV components are worn, plan to replace them during the job to ensure a reliable seal. Professional installation is recommended if you lack tools or experience removing ignition components safely.

• Requires basic hand tools, torque wrench, and replacement gasket kit (if not included).
• Inspect and replace spark plug boots, coil seals, and PCV parts as needed.
• Follow manufacturer torque specs and tightening sequence for best results.

Who is this for: This LEMASSON pair of left and right valve covers is intended for owners, mechanics and fleet operators of Nissan Frontier, Xterra, Pathfinder and NV vans with the 4.0L V6 who need a dependable OEM-style replacement to stop leaks and protect under-cover components. Choose these covers when your originals show oil seepage, cracking, or when planning a gasket refresh during routine maintenance. Confirm part number compatibility before ordering to ensure a correct, trouble-free fit and consider replacing gaskets and related hardware at the same time for a complete repair.