Parts for your 2017 Honda Odyssey-Sump plug washers

2017 Honda Odyssey sump-plug-washers

For the 2017 Honda Odyssey, a sump-plug-washer is very much relevant and used. Honda’s technical publications specify a replaceable crush washer on the engine oil drain bolt: the Owner’s Manual (Engine Oil & Filter section) instructs replacement at each oil change, the Service Manual (Lubrication) gives the drain bolt torque, and the Honda EPC/parts catalogue lists the washer as “Washer, Drain Plug (14 mm)”, part number 94109-14000, applicable to 2017 Odyssey (RC series). The service torque commonly specified for the drain bolt is 39 N·m (29 lbf·ft).

On the 2017 Odyssey, the sump-plug-washer’s job is simple but crucial: it deforms slightly as the drain bolt is tightened, creating a reliable seal between the bolt head and the alloy sump. This crush action prevents weeping and drips as the engine heats and cools. Because it’s a crush type, it’s classed as single-use. Reusing a flattened washer can lead to that tell-tale oil misting around the plug or a spot on the driveway after a long run.

During regular servicing, it’s best practice to fit a new washer every oil change. Pop the bonnet, drain the oil, clean the mating face on the sump, then fit a fresh 14 mm Honda-spec washer (P/N 94109-14000) before threading the plug in by hand. Finish with a torque wrench to 39 N·m. Over-tightening to “just a bit more” with a long spanner risks stripping threads in the alloy pan, under-tightening can allow a seep. Getting the torque right protects both the seal and the sump.

Aluminium washers are the OE choice and work brilliantly, quality copper crush washers sized for an M14 drain bolt also seal well if that’s what’s on the shelf. If the old washer has scored the sump face, tidy it with a lint-free wipe—no abrasives. If any nicking or burring is visible on the bolt flange, replace the bolt too.

• Replace the sump-plug-washer at every oil change—cheap insurance against leaks.
• Use the correct 14 mm crush washer (Honda 94109-14000).
• Tighten the drain bolt to 39 N·m with a torque wrench.

Follow those steps and the Odyssey stays tidy underbody, oil stays where it should, and servicing remains straightforward across Aussie and Kiwi conditions and kilometres.

Does the 2017 Odyssey definitely need a new sump-plug-washer every service?

Honda’s manuals say yes—replace it at each oil change. It’s a single-use crush washer that deforms to seal once. Reusing can lead to minor weeping that’s easy to avoid with a fresh washer.

What size sump-plug-washer suits the 2017 Honda Odyssey?

It uses a crush washer for an M14 drain bolt. The Honda OE part is 94109-14000 (Washer, Drain Plug, 14 mm). Stick with the correct size to ensure proper crush and sealing.

What torque should the sump plug be tightened to on a 2017 Odyssey?

Honda specifies 39 N·m (29 lbf·ft). Use a torque wrench—over-tightening risks damaging the alloy sump, under-tightening can allow a slow leak.