13264-EN20A Cylinder Head Cover Fits NISSAN X-Trail 2007-2014

Product Function Description

The cylinder head cover, also known as the valve rocker cover, is a critical component that seals the top of your Nissan X-Trail engine. It encloses the valvetrain components, including the camshafts and valves, while also serving as the mounting point for the oil filler cap and PCV valve. For the Nissan X-Trail T31, a properly sealed cylinder head cover is essential for maintaining engine oil containment, preventing leaks, and keeping dust and debris out of the valvetrain area. This cover is manufactured to exact factory specifications, ensuring perfect fit and reliable sealing performance. It meets rigorous quality standards for material composition, dimensional accuracy, and heat resistance, providing the same durability and reliability as the factory-installed part. This part is compatible with both 2.0L MR20DE and 2.5L QR25DE petrol engines found in the X-Trail T31 series.

When Should You Replace It?

Consider replacing your cylinder head cover if you experience any of the following symptoms: Visible oil leaks around the top of the engine or dripping onto the exhaust manifold causing burning oil smell. The valve cover is cracked, warped, or damaged. Oil contamination in the spark plug wells. Excessive oil consumption without visible leaks elsewhere. The PCV valve or oil filler cap no longer seals properly. The cover shows signs of corrosion or severe heat damage. You are performing a major engine service and the cover needs to be removed – the gasket should also be replaced. Engine oil smell inside the cabin. During a timing chain or valve adjustment service, the cover must be replaced if damaged or if the mounting bolt bosses are stripped. Note: The cylinder head cover itself is a durable metal component that typically does not need replacement unless physically damaged; however, the gasket is a regular maintenance item that should be replaced when oil leaks occur.

Product Specifications

Why Choose This Cylinder Head Cover?

Factory Specification Quality – This cover is produced to the exact material and dimensional standards of the original component, ensuring proper fit and sealing performance. Perfect Fit for Your X-Trail T31 – Precisely matched to the MR20DE and QR25DE engines. Direct bolt-on replacement with correct bolt hole alignment. Engineered for Heat Resistance – Engine compartments generate extreme heat cycles. This cover is designed with specific aluminum alloy and heat treatment to withstand these conditions without warping or cracking. Restores Proper Sealing – A damaged or warped cover cannot maintain proper gasket compression, leading to persistent oil leaks. This new cover ensures a flat, true sealing surface for leak-free operation. PCV and Filler Cap Compatibility – Precise mounting surfaces for the PCV valve and oil filler cap ensure these components seal correctly, preventing oil vapor leaks and maintaining proper crankcase ventilation. Maintains Engine Cleanliness – A properly sealed valve cover keeps dirt and debris out of the valvetrain, protecting camshafts and valves from premature wear. Long Service Life – Built to Nissan's durability standards, this cover will last the life of your engine under normal conditions.

Package Contents

1 x Cylinder Head Cover (13264-EN20A). Note: Cylinder head cover gasket is NOT included (order separately – part number 13270-JG30A for 2.5L QR25DE, or 13270-EN200 for 2.0L MR20DE). Mounting bolts are NOT included – please reuse original hardware or purchase separately. PCV valve, oil filler cap, and spark plug tube seals are NOT included. This is the bare cylinder head cover only.

Installation Tips

Important: Allow the engine to cool completely before installation. Clean the cylinder head sealing surface thoroughly – remove all old gasket material and oil residue. Ensure the new cover and head surface are free of debris. Install a new cylinder head cover gasket – do not reuse the old gasket. Apply a small amount of sealant to the specified areas as per Nissan service manual recommendations. Install the cover and tighten the mounting bolts in a cross-pattern sequence to ensure even compression of the gasket. Torque the bolts to the factory specification. Overtightening can warp the cover or damage the gasket; undertightening will cause oil leaks. Install new spark plug tube seals if they are not integrated into the gasket. Reconnect all hoses, wiring, and components removed during disassembly. Start the engine and check for oil leaks around the cover edges. Recheck bolt torque after the first heat cycle. Professional installation is recommended if you are not familiar with engine mechanical repairs.

Common Issues with X-Trail T31 Cylinder Head Covers

Nissan X-Trail T31 owners sometimes encounter cylinder head cover issues: Gasket failure – The rubber gasket hardens and shrinks over time, leading to oil leaks around the cover perimeter. Spark plug tube seal leaks – Internal seals around the spark plug tubes can fail, allowing oil to pool in the spark plug wells and cause misfires. PCV system clogging – A clogged PCV valve can cause crankcase pressure to build up, forcing oil past the gasket. Over-tightening damage – Previous over-torquing can warp the aluminum cover, preventing proper sealing even with a new gasket. Engine variant differences – The cover and gasket differ between 2.0L MR20DE and 2.5L QR25DE engines; ensure correct part selection. This replacement cover provides a fresh, true sealing surface and the correct dimensional integrity for long-term leak-free performance.

After-Sales Service & Warranty

This product is covered by our quality assurance. If you have any questions or issues regarding fitment or quality, please contact us and we will respond within 24 hours.

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Cylinder Head Cover Gasket  / Spark Plug Tube Seals / PCV Valve / Oil Filler Cap / Engine Oil / Sealant 

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