Parts for your 2004 Honda Elysion-Sump plug washers

2004 Honda Elysion sump plug washers: what they do and when to replace them

Based on Honda’s service literature for K24A and J30A engines and Honda EPC/microfiche parts catalogues for the RR1–RR3 Elysion, the 2004 Honda Elysion uses an aluminium crush-type sump (engine oil drain) plug washer, typically Honda part number 94109-14000 (14 mm). Honda workshop procedures consistently note “always replace the drain plug washer” during engine oil service, confirming the washer is a standard, service-replaceable item on this model.

On the 2004 Elysion, the sump plug washer is a small but critical seal that sits between the drain bolt and the sump. Its job is simple: once crushed to spec, it creates a fresh, reliable seal that prevents weeping or drips after an oil change. Because it’s a deformable aluminium ring, it’s designed for one-time use—re-using it can lead to poor sealing, over-tightening, or a stubborn leak that shows up as an oily mist around the plug.

For straightforward servicing, a new 14 mm aluminium crush washer should be fitted at every oil change. Most workshops pair it with the factory torque spec for the drain bolt—commonly around 39 N·m (29 lb·ft) on Honda K-series and J-series sumps—rather than “nipping it up” by feel. That torque, the fresh washer, and a clean mating surface are what keep the Elysion drip-free on long runs and hot days.

There’s no fancy orientation on Honda’s standard washer, it’s essentially symmetrical. The key is making sure the old one isn’t stuck to the sump, cleaning the sealing face, and avoiding stacking two washers—easy mistakes when servicing in a hurry. Quality matters too: a genuine Honda 94109-14000 or equivalent spec aluminium crush washer is the safe bet. Copper can seal, but Honda specifies aluminium for predictable crush and feel at the correct torque.

Practical servicing tips owners appreciate seeing on the job card:

• Replace the washer at every oil change (typically 10,000 km or 12 months in AU/NZ conditions, or as per service schedule).
• Inspect the drain bolt and sump threads, replace the bolt if the flange is grooved or the threads are tired.
• Tighten to spec, not “gorilla tight”, to protect the alloy sump.

Do that, and the 2004 Honda Elysion stays tidy underneath, with no tell-tale spots on the driveway and no fuss between services.

Popular questions

What size sump plug washer does a 2004 Honda Elysion use?
The Elysion takes a 14 mm aluminium crush washer (commonly Honda 94109-14000). It suits both the 2.4 K24A and 3.0 J30A engines used in 2004 models.

How often should the sump plug washer be replaced on a 2004 Elysion?
Best practice is to replace it at every oil change. That’s the approach specified in Honda workshop procedures to maintain a clean, reliable seal.

What torque should the sump plug be tightened to?
Honda’s typical spec for these engines is about 39 N·m (29 lb·ft). Using a torque wrench helps avoid leaks and protects the alloy sump threads.