Cylinder Head Seal — OEM-Grade Fit for Nissan Engines ?

Why this part is needed

This head gasket keeps engine compression tight while sealing oil and coolant passages between the block and the cylinder head. It prevents cross‑leaks, holds combustion pressure, and supports stable running temperature. Built to OEM-style specs, it’s made for the daily strain of stop‑go traffic and highway loads ?.

How it works

Positioned between the aluminum head and the iron block, the multi-layer steel design (MLS) with fire rings forms a precise barrier. When the head bolts are torqued in sequence, the gasket conforms to micro‑imperfections, locking in combustion and keeping oil and coolant in their own circuits. This ensures clean burn, proper lubrication, and consistent cooling ?️.

What happens if it’s broken

Failure shows as overheating, white exhaust smoke, sweet coolant smell, rough start, bubbling in the radiator, or milky oil. Power drops, fuel use rises, and the heater may blow cold. Ignoring it can warp the head, erode fire decks, contaminate bearings, damage the catalytic converter, or even cause hydro‑lock ❗?️?

Tech tips

Check deck flatness, clean surfaces, use new torque‑to‑yield bolts if specified, follow torque/angle pattern, and refill with fresh coolant and oil. Proper procedure ensures long, leak‑free service ?.

Compatibility

• Sentra
• Tiida
• Sentra/Sylphy T
• Sentra/Sylphy
• Pulsar
• Sylphy/Sentra T
• Sylphy/Sentra
• Sylphy