Parts for your 2015 Nissan Navara-Sump plug washers

2015 Nissan Navara sump plug washer – relevance, purpose and servicing advice

Based on technical sources, the 2015 Nissan Navara (D23/NP300) does use a sump plug washer. The Nissan Navara D23 Series Service Manual (Engine Mechanical – Lubrication System) specifies refitting the drain plug with a new gasket/washer at each oil change, and the Nissan parts catalogue lists a dedicated drain plug gasket for this model (commonly 14 mm, part numbers such as 11026-01M02 or superseded equivalents are referenced in dealer systems). Aftermarket fitment guides for D23/NP300 also specify a crush-type washer for the engine oil drain plug. These sources confirm the washer is relevant and fitted to the 2015 Navara.

On the 2015 Navara, the sump plug washer is a small, single‑use crush gasket that seals the drain plug to the sump. When the plug is tightened, the soft copper or aluminium washer deforms to fill any microscopic gaps, preventing weeps and drips once the engine is hot and the oil is thinned. Without a good washer, even a correctly tightened plug can mist oil or leave spots on the driveway, and over‑tightening to “make it seal” risks damaging the sump threads.

As part of regular servicing, the washer should be treated as a consumable. Best practice is to replace it at every oil change. It’s inexpensive, and a fresh crush washer gives a reliable seal with the correct torque rather than brute force. The correct washer is typically 14 mm for D23 Navara engines, but it’s smart to confirm by VIN or engine code and keep a few spares in the glovebox for DIY servicing weekends.

• When to replace: every oil change, immediately if any seepage is seen around the plug, whenever the plug has been removed.
• Fitting tips: clean the sump face and plug shoulder, hand‑start the plug to avoid cross‑threading, tighten to the workshop manual torque spec (don’t guess), wipe and recheck for drips after a short warm run.
• What to buy: a genuine‑spec copper or aluminium crush washer matched to the Navara’s drain plug size, avoid hard fibre washers that don’t deform properly.

Technical references consulted: Nissan Navara D23/NP300 Service Manual (2015–), Engine Mechanical – Lubrication System: instruction to install drain plug with a new gasket, Nissan parts catalogue listing of “Gasket – Drain Plug” for D23 Navara models, major AU/NZ aftermarket fitment catalogues specifying a crush washer for the 2015 Navara drain plug.

FAQs

Does a 2015 Nissan Navara use a sump plug washer?
Yes. The D23/NP300 Navara uses a crush‑type sump plug washer and Nissan’s service literature calls for a new washer at each oil change. It’s a small part that prevents leaks and helps ensure the plug reaches the correct clamping load without over‑tightening.

What size or part number is the sump plug washer for a 2015 Navara?
It’s commonly a 14 mm crush washer on D23 Navaras. Genuine Nissan listings often show part numbers like 11026‑01M02 or a superseded equivalent. Because specs can vary by engine/market, it’s best to confirm by VIN or engine code when ordering.

Can the sump plug washer be reused?
Not recommended. Crush washers are designed to deform once. Reusing them can lead to weeping seals or the temptation to over‑tighten the plug, which risks damaging the sump threads. Replace it at every oil change for peace of mind.