Parts for your 2000 Nissan Serena-Sump plug washers

2000 Nissan Serena sump plug washers

Yes, the 2000 Nissan Serena (C24) uses a sump plug washer. Nissan’s factory service information for the C24 Serena (Engine Mechanical section) specifies a replaceable drain plug gasket, and the Nissan FAST electronic parts catalogue lists a 14 mm oil drain plug with a separate crush washer, commonly supplied under Nissan part number 11026-01M02 (superseded in some catalogues by 11026-1MD0A). These sources confirm the washer is a normal service item on petrol and diesel C24 variants of this model year.

What does the washer do? It’s a soft crush gasket that sits between the sump (oil pan) and the drain plug. When the plug is tightened, the aluminium or copper washer deforms slightly to fill tiny imperfections, creating a reliable seal that stops weeping and drips. Without a good washer, even a correctly tightened plug can seep oil, which is messy, can fail a WOF/rego inspection, and isn’t great for the driveway or the environment.

Best practice on the 2000 Serena is to replace the sump plug washer at every engine oil change. The washer is designed as a single-use crush seal, once compressed, it won’t spring back the same way again. Reusing it can lead to small leaks, or tempt overtightening of the plug to chase a seal, which risks thread damage to the alloy sump. Use an OEM-spec 14 mm crush washer (aluminium or copper) and tighten the drain plug to the factory torque listed in the Nissan service manual—snug, not gorilla tight. If a torque wrench isn’t handy, go to first contact, then a firm nip, never force it.

Before refitting, wipe the sump’s sealing face and the plug clean, check the old washer isn’t stuck to the pan, and inspect the plug for damaged threads or a burred seat. Magnetic aftermarket plugs are fine on the Serena, but they still need the same crush washer to seal.

• Replace the washer at every oil change or any time the plug is removed
• Swap it immediately if there’s even light oil misting around the plug
• Keep a couple of spare 14 mm washers in the glovebox or tool kit

Popular questions

What size sump plug washer does a 2000 Nissan Serena use?
Most 2000 Serena C24 engines use a 14 mm crush washer for the oil drain plug. Nissan’s parts listings commonly show an aluminium washer under p/n 11026-01M02 (later superseded numbers may appear). If unsure, confirm against the VIN or the engine code on the parts counter.

How often should the sump plug washer be replaced on a 2000 Serena?
Every oil change. It’s a single-use crush gasket, so replacing it each service helps prevent weeping and avoids overtightening the plug. They’re inexpensive, so it’s cheap insurance against leaks.

Is copper or aluminium better for the Serena’s sump plug washer?
Either is fine if it’s the correct 14 mm size and spec. Aluminium is what Nissan commonly supplies, copper works well too and can be slightly more forgiving on reused plugs. The key is using a fresh, correct-size crush washer each time.