Parts for your 2010 Honda Elysion-Sump plug washers

2010 Honda Elysion sump plug washers

Based on Honda technical documentation for the Elysion RR-series (RR1–RR5) and the Honda Electronic Parts Catalogue, the 2010 Honda Elysion uses an aluminium crush-type sump plug washer on the engine oil drain bolt. Honda’s service literature for the K24A 2.4 and J30A V6 engines specifies a replace-once-used 14 mm crush washer (commonly referenced in Honda parts as a 14 mm drain plug washer) with the drain bolt tightened to approximately 39 N·m (29 lb·ft). So yes, a sump plug washer is absolutely relevant and fitted to this vehicle.

On the Elysion, the sump plug washer’s job is simple but crucial: it deforms as the drain bolt is torqued, creating a reliable seal between the bolt head and the sump. That soft aluminium ring prevents weeping, protects the sump face, and helps achieve the correct clamp load at the factory torque. Reusing a flattened or scored washer can lead to slow oil leaks, undertorque (risking loosening) or overtorque (risking thread damage) as you chase a seal that a tired washer can’t provide.

As part of routine servicing, it’s best practice to fit a new washer at every oil change. They’re inexpensive, and Honda’s own service procedures treat them as single-use items. For driveway servicing across Australia and New Zealand, a small stash of genuine-equivalent 14 mm aluminium crush washers keeps things simple when changing oil at the recommended intervals.

• Inspect the sump face and drain bolt head for nicks, lightly dress any burrs so the new washer seats cleanly.
• Always use a fresh 14 mm aluminium crush washer, avoid fibre or rubber substitutes on this application.
• Tighten the drain bolt to about 39 N·m (29 lb·ft) with a torque wrench, don’t “swing on it” by feel.
• After refill, run the engine, then check for any seepage around the plug once warm.

If there’s any sign of oil misting around the plug, or if the old washer has deep grooves, replace it. Owners who service on rough or corrugated roads may appreciate the added confidence a fresh washer gives at each oil change. Following Honda’s torque spec and washer replacement guidance keeps the Elysion tidy underneath and avoids headaches later.

Popular questions about 2010 Honda Elysion sump plug washers

What size sump plug washer does the 2010 Honda Elysion use?

The Elysion uses a 14 mm aluminium crush washer for the engine oil drain bolt, as indicated in Honda service data for the RR-series. This size matches the drain bolt shoulder and sump face to ensure a proper seal when torqued to about 39 N·m.

Should the washer be replaced at every oil change?

Yes. Honda service procedures treat the crush washer as single-use. Replacing it each time maintains sealing performance and helps you hit the correct torque without overtightening. It’s a low-cost way to reduce the chance of leaks.

Can a copper or reusable washer be used instead?

Honda specifies an aluminium crush washer. While copper can seal on some engines, sticking with the specified aluminium type for the Elysion is the safest bet. Reusable hard washers generally don’t deform enough to seal reliably on this sump and may encourage overtightening.