Parts for your 2002 Nissan Primera-Sump plug washers

2002 Nissan Primera sump-plug-washers: what they do, and when to swap them

Based on technical references, a sump-plug-washer is absolutely used on the 2002 Nissan Primera (P12). The Nissan Primera P12 Service Manual (Engine Mechanical section for QG18DE, QR20DE and YD22DDT engines) specifies an engine oil drain plug that is fitted with a replaceable gasket/washer and instructs replacement on refit, with a typical tightening torque of 34–44 N·m. Nissan’s parts catalogues (FAST/Global EPC) list a 14 mm crush-type drain plug washer for this model range, commonly referenced as 11026-01M02 or its superseding 11026-JA00A. That means sump-plug-washers are relevant and expected during routine servicing on a 2002 Primera.

On this Primera, the sump-plug-washer (often an aluminium crush washer) is a simple but crucial seal that sits between the sump drain plug and the pan. When the plug is torqued, the washer deforms slightly to take up any tiny imperfections in the mating surfaces, keeping engine oil where it should be. It’s a cheap part that protects against annoying drips on the driveway and the risk of low oil level over time.

For everyday servicing in Australia and New Zealand, it’s smart practice to replace the sump-plug-washer at each oil change (typically every 10,000–15,000 km or 12 months, depending on conditions and the engine variant). Reusing a crushed washer can lead to weeping or a slow leak after a few heat cycles. Stick with the correct 14 mm Nissan-spec washer, aluminium is the usual OEM choice, though quality copper crush washers can work if sized correctly. Fibre or nylon types aren’t recommended for this application on the Primera’s alloy/steel interfaces.

Fitting tips for the 2002 Nissan Primera sump-plug-washers:

• Clean the sump face and plug head, remove any old washer fragments.
• Install a new crush washer, then torque the plug to 34–44 N·m using a calibrated torque wrench.
• After the first warm-up, check for any dampness around the plug. A dry plug face is what you want.

Signs the washer needs attention include a faint oil halo around the plug, the smell of hot oil after a drive, or a drip on the garage floor overnight. If the plug has been over-tightened in the past, replace the plug as well—rounded heads and scored faces won’t seal reliably even with a new washer. For best results, use an OEM or quality aftermarket crush washer and keep a couple on hand for each service.

Popular questions about 2002 Nissan Primera sump-plug-washers

What size sump-plug-washer does a 2002 Nissan Primera use?
The Primera P12 typically uses a 14 mm crush washer for the engine oil drain plug. Nissan parts catalogues commonly reference 11026-01M02 (superseded in many listings by 11026-JA00A). Always match the washer to the plug’s shank diameter and seat style to ensure a proper seal.

How often should the sump-plug-washer be replaced?
Replace it at every oil change. In Aussie and Kiwi conditions, most owners service their Primera every 10,000–15,000 km or 12 months. A fresh washer each time helps prevent weeping after heat cycles and saves you chasing small leaks later.

Can the old washer be reused?
It’s not recommended. Crush washers are designed to deform once. Reusing can lead to seepage, especially after a few hot–cold cycles. If you’re in a bind, a copper washer may be re-annealed in theory, but for this Nissan application the manufacturer guidance is to install a new washer whenever the plug is refitted.