Parts for your 2012 Nissan Pathfinder-Sump plug washers

2012 Nissan Pathfinder sump plug washers: what they do and when to replace them

Relevant technical sources confirm that the 2012 Nissan Pathfinder does use a sump plug washer (also called an oil drain plug gasket). The Nissan Pathfinder R51 2012 Service Manual (Lubrication and Engine Mechanical sections) specifies a replace-on-removal gasket for the engine oil drain plug. Nissan’s electronic parts catalogue lists a genuine oil drain plug gasket (commonly 11026-01M02, superseded in some listings by 11026-JA00A) for both the VQ40DE petrol and YD25 diesel variants. Aftermarket manuals covering 2005–2014 Pathfinders likewise note a crush-type washer that should be renewed at each oil change.

This small, soft-metal ring serves a big purpose. It crushes slightly as the plug is tightened, creating a reliable seal between the plug head and the sump face. That controlled crush prevents weeping, protects the sump’s aluminium sealing surface from galling, and helps the plug reach its designed clamping load at the correct torque. Because the washer permanently deforms, it’s considered single-use: reusing it can mean slow leaks, oil mist on the undertray, or over-tightening to chase a seal.

For Australian and New Zealand-delivered 2012 Pathfinders—whether petrol V6 or 2.5 diesel—the recommended practice is to replace the sump plug washer at every engine oil service interval.

• Use a quality aluminium or copper crush washer that matches the plug size specified for the vehicle’s engine.
• Inspect the sump sealing land for burrs or nicks, dress lightly if needed so the new washer can seat flat.
• Start the plug by hand to avoid cross-threading, then tighten to the factory torque listed in the service manual.
• If the old washer has been reused and there’s any sign of weeping or drips on the driveway, fit a new washer and re-torque.
• Replace a chewed or rounded drain plug rather than forcing it—cheap insurance for the next service.

Genuine Nissan washers are inexpensive and widely catalogued for the 2012 Pathfinder, and quality aftermarket equivalents are fine as long as the material and size are correct. For fleet or off-road use where servicing is frequent, keeping a small pack of washers on hand makes oil changes quicker and cleaner.

Signs that a washer is due—outside regular servicing—include a faint oil ring around the plug, a light drip after shutdown, or oil film on the bash plate. Fresh washer, clean sealing faces, and correct torque: that’s the leak-free trio this Pathfinder appreciates.

FAQs

What size sump plug washer does a 2012 Nissan Pathfinder use?

Most 2012 Pathfinders use a 14 mm crush washer on the engine oil drain plug, as reflected in Nissan parts listings such as 11026-01M02 (and later supersessions). Because markets and engines vary, the safest approach is to confirm by VIN or by checking the existing plug’s size before purchase.

Can the sump plug washer be reused on a 2012 Pathfinder?

It’s not recommended. The genuine washer is a crush type designed to deform once to create a seal. Reusing it can lead to weeping, over-tightening, or damage to the sump face. Best practice is to fit a new washer at every oil change.

Do the transmission and differentials also use drain plug washers?

Yes, separate crush washers or sealing gaskets are used on many drain and fill plugs for the automatic transmission and front/rear differentials. They are different sizes and part numbers from the engine’s washer, so they shouldn’t be mixed. Check the service manual or parts catalogue for the correct items for each unit.