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Parts for your 2012 Nissan Pulsar-Sump plug washers
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2012 Nissan Pulsar sump-plug-washers: what they do and when to replace them
Per Nissan’s factory service information for the Pulsar B17 (sedan) and C12 (hatch) used in Australia and New Zealand—Maintenance (MA) and Engine Mechanical (EM) sections—the engine oil drain plug is designed to be used with a replaceable crush-type sump-plug-washer. The manuals specify “replace drain plug washer with new one at each oil replacement” and tighten the plug to approximately 25 N·m. Nissan’s parts catalogues (including FAST) list a 14 mm aluminium crush washer for these models and engines (MRA8DE and MR16DDT), commonly referenced as P/N 11026-01M02, superseded by 11026-4N200 or 11026-JA00A. So yes—sump-plug-washers are relevant and fitted on the 2012 Nissan Pulsar.
On this Pulsar, the sump-plug-washer does the quiet but vital job of sealing the oil drain plug to the alloy sump. It’s a soft aluminium (or sometimes copper) gasket that deforms once when the plug is torqued, filling tiny imperfections so engine oil stays exactly where it should. Because it’s a crush washer, it’s intended for one-time use—reusing it can lead to weeping oil, messy undertrays, and that annoying spot on the driveway.
As part of a routine service, it’s best practice to replace the sump-plug-washer every oil change. The washer is inexpensive, and fitting a fresh one protects the sump threads by allowing the correct clamp load at the specified torque. Over-tightening to “force” a seal is risky and can strip threads or warp the sump face.
When servicing a 2012 Nissan Pulsar:
- Use a new 14 mm aluminium crush washer (Nissan P/N 11026-01M02 or superseding equivalent).
- Clean the mating surfaces on the sump and plug, lightly oil the new washer.
- Tighten the drain plug to about 25 N·m—don’t guess, use a torque wrench.
Signs a washer needs attention include a faint oil halo around the plug, a drip forming hours after shutdown, or a plug that feels “soft” when tightening. If any of these crop up after a service, a fresh washer and correct torque nearly always sorts it.
Whether it’s the everyday MRA8DE or the punchier MR16DDT SSS, sticking to a new sump-plug-washer each service keeps the Pulsar tidy, leak-free, and easier to maintain next time.
FAQs
How often should the sump-plug-washer be replaced on a 2012 Nissan Pulsar?
Every oil change. Nissan’s service procedures for the B17/C12 platform call for a new crush washer each time the drain plug is removed. That ensures a reliable seal at the correct 25 N·m torque without over-tightening.
What size and part number washer does it use?
It’s a 14 mm aluminium crush washer. Common Nissan references include 11026-01M02, superseded by 11026-4N200 or 11026-JA00A in many catalogues. Any quality 14 mm crush washer matching OE dimensions will do the job.
What happens if the washer is reused or missing?
Expect weeping or dripping oil, inconsistent torque feel, and potential damage if the plug is over-tightened to chase a seal. Over time, that can mark the driveway, contaminate underbody components, and make the next service fussier than it needs to be.
