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Parts for your 2007 Nissan Serena-Sump plug washers
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2007 Nissan Serena sump-plug-washers — what they do and when to replace them
Based on Nissan’s own technical literature, a sump plug washer is fitted to the 2007 Nissan Serena (C25 series). The Nissan workshop manual for the C25/MR20DE engine (Lubrication section) specifies a replaceable drain plug gasket and advises renewal when refitting the plug. Nissan’s parts catalogues (commonly referenced as FAST) list a 14 mm crush-type “Gasket-Drain Plug” for this model, with widely used Nissan part numbers such as 11026-01M02 or 11026-4N200 noted in various market listings. So yes—sump-plug-washers are relevant and used on the 2007 Nissan Serena.
On this Serena, the sump plug washer is a small, soft-metal ring—usually aluminium or copper—that sits between the oil drain plug and the sump. Its job is simple but critical: it deforms slightly as the plug is tightened, creating a reliable seal to keep engine oil where it belongs. That crush action compensates for minor surface imperfections and helps prevent weeps and drips after an oil change.
Because it’s designed to crush once, the washer should be replaced at every oil change. Reusing an old washer can lead to slow leaks, messy driveways, and the temptation to overtighten the plug—risking damaged threads in the sump. For the 2007 Nissan Serena, a 14 mm crush washer that matches OE spec is the go-to choice. Aluminium is common and perfectly fine, copper alternatives also seal well and can be a touch more forgiving.
As part of servicing the 2007 Nissan Serena’s sump-plug-washers, it pays to keep a few spares in the glovebox or toolbox. During an oil service:
- Remove the old washer from the drain plug and bin it—don’t reuse.
- Wipe the sump face and plug head clean of old oil and grit.
- Fit a fresh 14 mm crush washer, reinstall the plug, and tighten to the workshop manual’s torque spec for the MR20DE/QR20DE as applicable.
If there’s any oil mist or drips after a service, check the plug seating and washer orientation, and confirm the correct size was used. Using a quality OE or OE-equivalent washer avoids headaches, keeps the Serena tidy, and helps maintain correct oil level between services—great for long Kiwi and Aussie road trips.
Popular questions about 2007 Nissan Serena sump-plug-washers
What size sump plug washer does the 2007 Nissan Serena use?
It typically uses a 14 mm crush washer for the engine oil drain plug. Nissan’s own listings commonly cite a 14 mm drain plug gasket, with OE numbers seen across markets such as 11026-01M02 or 11026-4N200. Always match by engine/VIN if in doubt.
Do I really need to replace the washer at every oil change?
Yes. The washer is designed to crush once and form a seal. Reusing it can cause slow leaks and may encourage overtightening of the plug. A fresh washer each service is inexpensive insurance.
Is aluminium or copper better for the Serena’s washer?
Both work well when correctly sized. Aluminium is commonly supplied as OE and seals reliably. Copper can offer a slightly different crush characteristic. The key is using a proper 14 mm Nissan-compatible crush washer and tightening to the specified torque.
