Description

V9X 3.0 dCi 2 x Exhaust Manifold Gasket | Renault, Nissan & Infiniti | OEM 1403600Q0H / 8200753462

The exhaust manifold gasket is a critical sealing component that prevents exhaust gases from escaping between the cylinder head and the exhaust manifold. Over time, extreme temperatures and constant thermal expansion can cause the gasket to deteriorate, leading to exhaust leaks, increased engine noise, and reduced engine efficiency.

The CNM Auto Parts V9X 3.0 dCi Exhaust Manifold Gasket Set (2 Pieces) is manufactured to provide a precise OEM-compatible fit and reliable sealing performance for Renault, Nissan, and Infiniti vehicles equipped with the V9X diesel engine.

What Does the Exhaust Manifold Gasket Do?

The exhaust manifold gasket creates a gas-tight seal between the engine cylinder head and the exhaust manifold.

Its primary functions include:

• Preventing exhaust gas leaks
• Maintaining turbocharger efficiency
• Reducing engine noise
• Protecting nearby engine components from hot exhaust gases
• Supporting correct exhaust flow

A properly sealed exhaust system is essential for engine performance and emissions control.

Common Symptoms of a Failed Exhaust Manifold Gasket

A damaged exhaust manifold gasket may cause:

• Ticking or tapping noise during cold starts
• Exhaust gas smell in the engine bay
• Reduced turbo performance
• Loss of engine power
• Increased fuel consumption
• Soot marks around the exhaust manifold
• Check Engine Light on some vehicles

These symptoms usually become more noticeable as engine temperature increases.

Why Do Exhaust Manifold Gaskets Fail?

Exhaust manifold gaskets operate in one of the hottest areas of the engine.

Common causes of failure include:

• Continuous heat cycles
• Thermal expansion and contraction
• Engine vibration
• Corrosion
• High mileage
• Improper bolt torque during installation

Replacing worn gaskets helps restore proper sealing and protects the turbocharger from exhaust leakage.

Compatible Vehicles

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

• Renault Laguna Coupe 3.0 dCi
• Renault Laguna III 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

This gasket set includes 2 exhaust manifold gaskets, as required for V9X engine applications.

OEM Reference Numbers

Direct replacement for:

• 1403600Q0H (Nissan)
• 8200753462 (Renault)

Manufactured to OEM dimensions for reliable sealing and long service life.

Why Choose CNM Auto Parts?

Every CNM Auto Parts gasket is manufactured with precision and durability in mind.

Features include:

• High-strength steel construction
• Precision-cut sealing surfaces
• Excellent resistance to extreme exhaust temperatures
• OEM-compatible fit
• Corrosion-resistant material
• Long service life
• Direct replacement installation

Designed for both professional workshops and experienced DIY mechanics.

Installation Tips

For the best repair results:

• Clean the cylinder head and manifold sealing surfaces thoroughly.
• Check the exhaust manifold for cracks or warping.
• Replace damaged studs or nuts if necessary.
• Tighten fasteners gradually using the manufacturer’s recommended sequence and torque values.
• Inspect carefully for exhaust leaks after the engine reaches operating temperature.

Replacing both gaskets at the same time is recommended whenever the exhaust manifold is removed.

Frequently Asked Questions

Why does my engine make a ticking noise when cold?

A leaking exhaust manifold gasket often creates a ticking sound during cold starts. As the engine warms up, thermal expansion may temporarily reduce the noise.

Can an exhaust leak reduce turbo performance?

Yes. Exhaust gases escaping before reaching the turbocharger can reduce turbo efficiency and negatively affect engine performance.

Is this a direct replacement for OEM 1403600Q0H and 8200753462?

Yes. The CNM Auto Parts gasket set is designed as a direct OEM-compatible replacement for both reference numbers.

Restore Proper Exhaust Sealing

A properly sealed exhaust manifold helps maintain engine performance, turbocharger efficiency, and long-term reliability.

The CNM Auto Parts V9X 3.0 dCi Exhaust Manifold Gasket Set (2 Pieces) provides a dependable sealing solution for Renault, Nissan, and Infiniti V9X diesel engines, helping eliminate exhaust leaks and restore factory performance.