Parts for your 2000 Nissan Serena-Exhaust gasket

2000 Nissan Serena exhaust gasket: what it does and when to replace it

Yes, the 2000 Nissan Serena uses exhaust gaskets. Nissan’s C24 Serena Factory Service Manual (sections EM: Engine Mechanical and EX: Exhaust System) and the Nissan FAST electronic parts catalogue for C24-series engines (including SR20DE, QG18DE and YD22DD) show gaskets at the manifold-to-cylinder head, manifold/front pipe joint (often a crush “donut” ring), and at various flange joints around the catalytic converter and mid-pipe. Major aftermarket catalogues for the C24 platform also list these gaskets, confirming they’re standard fitment.

On this Serena, the exhaust gaskets seal super-hot gases as they leave the engine, keeping the system quiet, leak-free and safe. They also protect performance and economy by preventing fresh air from sneaking into the exhaust stream, which can upset oxygen sensor readings and make the engine run rich. A healthy gasket helps avoid fumes entering the cabin, shields nearby components from heat and soot, and reduces that annoying ticking sound on cold starts.

When servicing a 2000 Serena, it’s good practice to inspect exhaust joints and renew gaskets any time the manifold, front pipe, catalytic converter, or rear sections are removed. Re-using flattened or heat-cycled gaskets is false economy—they rarely reseal properly. Look for tell-tales like a dry, sooty halo around a joint, a sharp tick under load, a whiff of exhaust near the firewall, or an RWC/WOF noise fail. After any repair, a quick cold-start check and a light hand-over-joint (without touching hot parts) can help detect puffing leaks.

Tips the workshop will follow on a Serena:

• Use quality gaskets matched to the engine type (diesel YD22DD vs petrol SR/QG) and joint style (MLS manifold gasket vs graphite/steel ring for donut joints).
• Clean mating faces and check flanges for warpage