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Parts for your 1994 Nissan Primera-Sump plug washers
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1994 Nissan Primera sump plug washers — fitted, and worth replacing
Yes, the 1994 Nissan Primera (P10) uses a sump plug washer. This is confirmed in factory literature: the Nissan Primera P10 Factory Service Manual (1990–1996) instructs to refit the drain plug with a new gasket, the Nissan FAST electronic parts catalogue lists a “Gasket–Drain Plug” for GA16DE and SR20DE engines (commonly 11026-01M02, 14 mm crush type), and the Haynes Nissan Primera 1990–1999 manual also notes renewing the sealing washer at oil changes. So, it’s very much a relevant service item on this model.
The sump plug washer’s job is simple but critical: it crushes slightly as the plug is tightened, sealing the joint between the sump and plug to stop weeping or drips. On the ’94 Primera it’s typically aluminium or copper, designed as a single‑use crush washer. Running without a good washer can leave them with oil seepage, a mess on the driveway, and the risk of low oil if unnoticed.
Best practice on a Primera P10 service is to replace the washer every oil change. It’s a cheap part that protects the alloy sump threads by allowing proper clamping without overtightening. If a previous washer was reused, signs it’s due for replacement include oil “sweat” around the plug, a drip after an overnight park, or a washer that looks gouged, flattened unevenly, or hard as nails.
When changing the oil:
- Have the correct 14 mm Nissan-style crush washer ready (genuine or quality aftermarket to OE spec).
- Clean the sump face and plug head so the new washer seats squarely.
- Refit and tighten the plug to the torque specified in the Primera service manual, using a torque wrench is ideal. Don’t swing off it—stripped threads are a headache.
- After refill, run the engine, then check under the bonnet and underneath for any seepage around the plug.
- Dispose of old oil responsibly—most councils and parts stores in AU/NZ take waste oil.
If the plug has seen better days (rounded head or damaged threads), replace it along with the washer. Sticking to a fresh washer each service keeps the 1994 Primera leak‑free and happy over long kilometres.
Popular questions about 1994 Nissan Primera sump plug washers
What size sump plug washer does a 1994 Nissan Primera use?
Most 1994 Primera P10 petrol engines (GA16DE, SR20DE) use a 14 mm crush washer commonly referenced by Nissan as a drain plug gasket. Part catalogues often show 11026-01M02. Always check by VIN or measure the plug’s shank and seat style before buying.
How often should the washer be replaced?
Replace the sump plug washer at every oil change. It’s a single‑use crush seal, reusing it can lead to weeping and can tempt overtightening to “chase” a seal, which risks sump thread damage.
Can the old washer be reused if it looks okay?
Not recommended. The washer deforms permanently on first use. Even if it looks tidy, it may not reseal reliably. On the P10 Primera, fit a new crush washer each time to avoid leaks and keep servicing stress‑free.
