Parts for your 2008 Honda Accord-Sump plug washers

2008 Honda Accord sump plug washers: what they are, why they matter, and when to replace

Yes, the 2008 Honda Accord uses a sump plug washer (crush washer). Honda’s 2008–2012 Accord Service Manual (Engine Lubrication section) specifies replacing the drain plug washer at each engine oil change and tightening the plug to 39 N·m (29 lbf·ft). Honda’s Electronic Parts Catalogue lists the genuine part as “Washer, Drain (14 mm) 94109-14000” for both the 2.4‑litre K‑series and 3.5‑litre J‑series engines. Those technical sources make the washer relevant and required on this model.

On the 2008 Accord, the sump plug washer is a small, single‑use aluminium crush ring that sits under the engine oil drain bolt. When the bolt is torqued, the washer deforms slightly to create a reliable seal between the plug and the alloy sump. That crush action keeps oil where it belongs and helps prevent leaks, weeping, and plug loosening over time.

As part of routine servicing, the washer should be replaced at every oil change. It’s a low‑cost item that saves headaches later. Reusing a flattened washer can lead to a slow drip, oil mist on the undertray, or over‑tightening the plug to “chase” a seal—risking stripped threads in the sump. With a fresh washer fitted and the correct torque applied, the plug seats properly without brute force.

Good practice on a 2008 Accord service looks like this:

• Warm the engine so the oil flows freely, then drain the oil.
• Remove the old washer from the plug and fit a new 14 mm Honda‑spec aluminium crush washer (P/N 94109‑14000 or equivalent).
• Clean the plug and sump seating face so there’s no grit to compromise sealing.
• Refit the plug and torque to 39 N·m (29 lbf·ft). Don’t overdo it with a long breaker bar.
• Top up oil, run the engine, and check for any seepage around the plug after a short drive.

Owners in Australia and New Zealand often do 10,000–15,000 km service intervals, replacing the washer each time is the easy win. If the plug shows burring, damaged threads, or a chewed head, replace it alongside the washer. For anyone working on a driveway, keep a couple of spare washers on hand—cheap insurance for a tidy, leak‑free service.

Popular questions

Does a 2008 Honda Accord need a sump plug washer?
Yes. Honda’s service manual calls for replacing the drain plug washer at every oil change. The washer provides the crush seal that stops leaks, it’s designed for single use.

What size washer and torque does the 2008 Accord use?
The engine oil drain uses a 14 mm aluminium crush washer (Honda P/N 94109‑14000). Tighten the drain plug to 39 N·m (29 lbf·ft). Sticking to the spec avoids stripped threads and ensures a proper seal.

Can the sump plug washer be reused?
It’s not recommended. Once crushed, the washer won’t seal as reliably the second time. Reusing it risks weeping or drips, replacing it at each service is inexpensive and keeps the sump tidy.