Parts for your 2006 Honda Cr-v-Sump plug washers

2006 Honda CR‑V sump plug washers: what they do and when to replace

On the 2006 Honda CR‑V, a sump plug washer is absolutely used. Technical references including the Honda Service Manual for the 2002–2006 CR‑V (K24A engine) and Honda’s genuine parts listings specify a 14 mm aluminium crush washer (commonly listed as Honda P/N 94109‑14000) for the engine oil drain plug. The same service literature calls for replacing this washer at each oil change and tightening the drain plug to 39 N·m (29 lb‑ft). So, yes—this CR‑V is designed to run a sump plug washer.

The sump plug washer’s whole job is to seal the drain plug against the alloy sump so fresh oil stays in and road grime stays out. On the 2006 Honda CR‑V, the washer is a soft, single‑use aluminium “crush” type. When the plug is torqued to spec, the washer deforms slightly to take up any tiny imperfections between the mating faces. That controlled crush is what makes the seal reliable—reusing a flattened washer can invite weeps or outright leaks.

As part of routine servicing, it’s wise to keep a couple of genuine‑spec 14 mm crush washers on hand and swap one in at every oil and filter change. It’s a low‑cost item that protects the sump threads, avoids over‑tightening, and helps maintain correct torque. If the washer isn’t replaced, tell‑tale signs can include a faint oil mist around the plug, a drip forming after a drive, or a plug that keeps needing a “nip‑up” to stay dry—none of which should happen when the correct washer is fitted once and the plug is torqued properly.

Handy tips for the 2006 CR‑V:

• Use the right size: 14 mm Honda‑style aluminium crush washer.
• Always clean the sump face and plug head before refitting.
• Tighten to 39 N·m (29 lb‑ft) with a torque wrench—no rattle guns.
• Replace the plug if the flange is gouged or the threads look tired.

Done this way, the washer does its quiet, crucial job for the life of the service interval, keeping the K‑series engine’s fresh oil where it belongs and saving hassles on the driveway.

Popular questions

What size sump plug washer does a 2006 Honda CR‑V use?
It uses a 14 mm aluminium crush washer, as listed in Honda parts catalogues for the K24A‑equipped 2006 CR‑V. This is the common Honda drain plug gasket (often referenced as P/N 94109‑14000) designed to deform once for a reliable seal.

How often should the sump plug washer be replaced on a 2006 CR‑V?
Best practice is every oil change. Honda service information specifies replacing the washer each time and torquing the drain plug to 39 N·m (29 lb‑ft) so the new washer crushes correctly and seals first go.

Can a copper washer be used instead of aluminium on this model?
Copper can work on some vehicles, but Honda specifies an aluminium crush washer for this application. Sticking with the OE‑style aluminium washer helps ensure the expected crush and seal at the specified torque.