Description

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V9X 3.0 dCi Oil Separator Gasket | For Renault, Nissan & Infiniti

The oil separator gasket is an essential sealing component of the crankcase ventilation (PCV) system on the Renault–Nissan V9X 3.0 dCi diesel engine. It ensures an airtight seal between the oil separator housing and the engine, helping regulate crankcase pressure while preventing engine oil leaks and unwanted air entry.

The CNM Auto Parts V9X 3.0 dCi Oil Separator Gasket is manufactured to provide an OEM-quality fit, long-lasting sealing performance, and reliable operation for Renault, Nissan, and Infiniti vehicles equipped with the V9X V6 diesel engine.

What Does the Oil Separator Gasket Do?

The oil separator gasket seals the oil separator housing to prevent oil and crankcase gases from escaping.

Its main functions include:

• Prevent oil leaks
• Maintain correct crankcase pressure
• Support proper PCV system operation
• Reduce oil vapour leakage
• Protect engine components from contamination
• Improve overall engine reliability

A properly sealed oil separator helps maintain stable engine performance and efficient crankcase ventilation.

Common Symptoms of a Failed Oil Separator Gasket

A worn or damaged gasket may cause:

• Engine oil seepage around the oil separator
• Oil residue on the engine
• Burning oil smell
• Whistling noise from the engine
• Excessive crankcase vacuum
• Rough idle
• Increased oil consumption
• Oil vapour leaks

If these symptoms are ignored, they may lead to reduced engine efficiency and additional repairs.

Why Does the Oil Separator Gasket Fail?

The gasket is constantly exposed to:

• High engine temperatures
• Engine oil
• Pressure fluctuations
• Continuous heat cycles
• Engine vibration
• Age-related hardening

Over time, the sealing material loses flexibility and can no longer maintain a proper seal.

Compatible Vehicles

Suitable for selected vehicles equipped with the Renault–Nissan V9X 3.0 dCi V6 diesel engine, including:

• Renault Laguna III 3.0 dCi
• Renault Laguna Coupe 3.0 dCi
• Renault Latitude 3.0 dCi
• Nissan Navara D40 3.0 V6 dCi
• Nissan Pathfinder R51 3.0 V6 dCi
• Infiniti EX30d
• Infiniti FX30d
• Infiniti M30d
• Infiniti Q70 3.0d
• Infiniti QX70 3.0d

Always verify compatibility using your VIN number or OEM reference before ordering.

Why Choose CNM Auto Parts?

The CNM Auto Parts Oil Separator Gasket is engineered for dependable sealing performance.

Features include:

• Precision-manufactured dimensions
• OEM-compatible fit
• Oil-resistant sealing material
• High-temperature durability
• Long service life
• Direct replacement installation
• Manufactured under strict quality standards

Designed for professional workshops and experienced DIY mechanics.

Installation Tips

For the best repair results:

• Clean the oil separator housing thoroughly.
• Remove all old gasket material before installation.
• Inspect the oil separator housing for cracks or distortion.
• Replace damaged PCV components if necessary.
• Tighten fasteners evenly according to the manufacturer’s specifications.
• After installation, check for oil leaks and proper crankcase ventilation.

Replacing the gasket whenever the oil separator is removed is strongly recommended.

Frequently Asked Questions

Can a leaking oil separator gasket cause oil leaks?

Yes. A damaged gasket allows engine oil and crankcase vapours to escape, creating oil residue around the engine.

Can a faulty oil separator affect engine performance?

Yes. An air leak in the crankcase ventilation system can affect crankcase pressure, leading to rough idle, increased oil consumption, and reduced engine efficiency.

Is this a direct replacement?

Yes. The CNM Auto Parts Oil Separator Gasket is designed as a direct OEM-compatible replacement for V9X 3.0 dCi applications.

Keep Your V9X Engine Properly Sealed

A healthy crankcase ventilation system is essential for long engine life, reduced oil consumption, and reliable performance.

The CNM Auto Parts V9X 3.0 dCi Oil Separator Gasket provides a durable sealing solution for Renault, Nissan, and Infiniti V9X diesel engines, helping maintain proper crankcase ventilation and leak-free operation.