Parts for your 2017 Honda Civic-Sump plug washers

2017 Honda Civic Sump Plug Washers

Yes, the 2017 Honda Civic uses a sump plug washer. Technical sources back this up clearly: the 2017 Honda Civic Owner’s Manual instructs replacing the drain bolt washer at each oil change, the factory service manual for the 10th‑gen Civic (Helm) specifies a 14 mm aluminium crush washer on the engine oil drain bolt with a tightening torque of 39 N·m, and Honda’s genuine parts catalogue lists the “Washer, Drain Plug (14 mm)” under part number 94109‑14000 for 2016–2021 Civics. Whether it’s the 1.5‑litre turbo or the 2.0‑litre engine, they use the same style washer on the sump plug.

On a 2017 Honda Civic, the sump plug washer’s job is simple but crucial: it crushes slightly as the plug is tightened to create a fluid‑tight seal between the sump and the drain bolt. That soft aluminium ring compensates for tiny imperfections on the mating faces, stopping weeps and drips after an oil change. Because it’s a crush washer, it’s designed for single use—once compressed, it won’t spring back properly, and reusing it can lead to slow leaks or the need to over‑tighten the bolt, which risks stripping threads in the alloy sump.

Best practice on this model is to fit a new washer at every oil change. It’s a low‑cost item that protects a much more expensive sump. When servicing a 2017 Civic, remove the old washer from the drain bolt, clean the bolt and seating face on the sump, and install a fresh 14 mm aluminium crush washer (Honda P/N 94109‑14000 or an equivalent quality aftermarket washer). Refit the plug and tighten to 39 N·m. Don’t “nip it up” beyond spec—over‑tightening can deform the new washer excessively and damage threads.

Owners who notice oil misting around the drain area, a drip on the driveway after a service, or a washer that looks grooved or flattened should replace it immediately and re‑torque correctly. Copper washers can work if sized correctly, but Honda specifies aluminium for this platform, and sticking with OEM style helps ensure the correct crush and torque relationship. Keep a couple of spares on hand so every DIY oil change on a 2017 Civic is tidy, reliable, and leak‑free.

• Washer type: Aluminium crush washer
• Size: 14 mm (for M14 drain bolt)
• Honda part number: 94109‑14000
• Tightening torque: 39 N·m
• Replacement interval: Every oil change

FAQs

What size sump plug washer does a 2017 Honda Civic use?
The 2017 Civic uses a 14 mm aluminium crush washer that fits the M14 drain bolt. The genuine Honda part number commonly used is 94109‑14000.

How often should the sump plug washer be replaced on a 2017 Civic?
Replace it at every oil change. It’s a single‑use crush washer—reusing it can lead to seepage or the need to over‑tighten the drain bolt.

What torque should the drain bolt be tightened to with a new washer?
Torque the drain bolt to 39 N·m. Using the correct torque with a fresh washer ensures a proper seal without stressing the threads.