Parts for your 2005 Honda Elysion-Sump plug washers

2005 Honda Elysion sump plug washers

Technical sources confirm the 2005 Honda Elysion uses a single-use aluminium crush washer on the engine oil drain (sump) plug. Honda’s JDM service literature for the Elysion K24A/J30A engines specifies a 14 mm drain bolt with an aluminium sealing washer, tightened to 39 N·m (about 29 lb·ft). Honda parts catalogues list the typical pairing as Drain Bolt (14 mm) 90009-PL2-000 and Washer, Drain Plug (14 mm) 94109-14000. That means a sump plug washer is absolutely relevant and fitted on this model.

For owners and workshops looking after a 2005 Honda Elysion, the sump plug washer does a deceptively important job. It crushes slightly as the bolt is torqued, creating a reliable seal between the drain bolt and the alloy sump. That stops those annoying drips on the driveway, protects the sump threads by allowing the right torque without overtightening, and helps keep oil pressure where it should be. On this Honda, the correct washer is a 14 mm aluminium crush type, and it’s meant to be replaced at every oil change.

Best practice during a service is simple: after the old oil drains, fit a new genuine-equivalent aluminium washer to the clean drain bolt. If the washer is the dished style, install it with the rounded side towards the bolt head so it crushes uniformly, if it’s flat both sides, orientation doesn’t matter. Refit the bolt and tighten to 39 N·m. Avoid going by “feel” with a long breaker bar, as that’s how alloy sumps get damaged. A small torque wrench is the go.

Reusing a crushed washer can lead to weeps that travel along the underbody, and it’s not always obvious until the next service. Given they cost next to nothing, it’s a no-brainer to keep a few spares on hand. Stick with aluminium for Hondas, copper can work in a pinch but may require higher torque to seal and isn’t what Honda engineered for this sump.

• Replace the washer at every oil change (typically 10,000 km or 12 months, per local servicing habits).
• If any oil misting is seen around the plug, fit a new washer and torque correctly.
• Never use sealant on the threads, the washer does the sealing.

Popular questions about 2005 Honda Elysion sump plug washers

What size sump plug washer does a 2005 Honda Elysion use?
The Elysion uses a 14 mm aluminium crush washer on the engine oil drain plug. This matches the 14 mm drain bolt used on the K24A and J30A engines fitted to the model. Using the correct size ensures the washer crushes and seals as intended.

How often should the sump plug washer be replaced?
Every oil change. These washers are single-use by design. Once crushed, they don’t spring back, so reusing them can cause slow leaks or require over-tightening to try to seal, which risks damaging the sump.

What’s the correct torque for the Elysion’s drain plug?
Honda specifies 39 N·m (about 29 lb·ft) for the engine oil drain bolt. Use a torque wrench on a clean, lightly oiled thread with a brand-new aluminium crush washer. Over-tightening won’t make it seal better, it just stresses the alloy sump.