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Parts for your 2008 Nissan Dualis-Sump plug washers
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2008 Nissan Dualis sump-plug-washers — what they do and when to replace them
Yes, the 2008 Nissan Dualis (J10, MR20DE) uses a sump plug washer. Nissan’s own J10 Model Service Manual (Lubrication/LU section) specifies an aluminium crush washer on the engine oil drain plug and calls for replacement at each refit. The Nissan FAST parts catalogue for J10 lists the oil drain plug gasket (often shown as “Gasket–Drain Plug, Oil Pan”) with part numbers commonly referenced as 11026-01M02, superseded in many catalogues by 11026-1MD0A. Aftermarket catalogues used in AU/NZ parts counters mirror this, noting a 14 mm aluminium crush type for the Dualis/Qashqai platform.
On this model, the sump-plug-washer is a small, single-use seal that sits between the drain plug head and the sump. When the plug is tightened, the soft aluminium deforms to seal the mating surfaces. That crush action is why it’s considered one-time use—once flattened, it won’t seal as reliably again.
As part of routine servicing, it’s smart to replace the washer at every oil change. It’s a cheap bit that prevents oily drips on the driveway and avoids the temptation to overtighten the plug to stop a weep. The Nissan service guidance also notes a tightening torque around 29 N·m for the drain plug, using a torque wrench instead of “by feel” helps protect the sump threads while ensuring the new washer crushes correctly.
- Use the correct size: the Dualis typically takes an M14 drain plug with a 14 mm ID aluminium crush washer.
- Replace every oil change—don’t reuse a flattened washer.
- Clean the sump sealing face and plug head before refitting.
- Avoid PTFE tape or sealants, the crush washer is the designed seal.
- After the first drive, have a quick look under the bonnet and underneath for any fresh oil around the plug.
If the plug has been overtightened in the past, you might see a persistent weep even with a new washer—check for burrs on the sealing face or, in worse cases, damaged sump threads. Sticking with genuine or quality aftermarket washers that match the OE thickness and material keeps everything tidy and leak-free. For most Aussie and Kiwi owners doing 10,000–15,000 km intervals, tossing a fresh washer in with each oil change is a simple, low-cost win.
FAQs — 2008 Nissan Dualis sump-plug-washers
Does a 2008 Nissan Dualis need a sump plug washer?
It does. Nissan documentation for the J10 Dualis specifies an aluminium crush washer on the oil drain plug and recommends replacing it whenever the plug is removed. Skipping it can lead to small leaks.
What size washer fits the Dualis sump plug?
The Dualis uses an M14 drain plug and takes a 14 mm ID aluminium crush washer. Common Nissan part numbers referenced by catalogues are 11026-01M02 and its later supersession 11026-1MD0A.
How tight should the sump plug be on a Dualis?
Nissan service information for the J10 platform puts the drain plug torque at about 29 N·m. Using a torque wrench helps the washer crush correctly without risking stripped threads.
