Parts for your 2012 Honda Accord-Sump plug washers

2012 Honda Accord sump-plug-washers

Technical sources confirm the 2012 Honda Accord does use a sump plug washer (also called a drain plug crush washer). The 2012 Accord Owner’s Manual instructs replacement of the drain bolt washer at each engine oil change. Honda’s electronic parts catalogue lists a 14 mm aluminium “Gasket, Drain Plug” (commonly P/N 94109-14000) for 2.4L and 3.5L engines. The factory service manual specifies refitting the sump plug with a new washer and tightening the plug to about 39 N·m (29 lb·ft). So, the washer is absolutely relevant and is a normal service item on this model.

For the 2012 Honda Accord, the sump-plug-washer is a small, single-use aluminium ring that crushes slightly when the sump plug is tightened. That soft metal deformation creates a reliable seal between the plug and the alloy sump, stopping weeps and drips. It also spreads the load so the plug doesn’t bite into the pan, which helps prevent thread damage and saves headaches down the road.

As part of regular servicing, this Accord really benefits from a fresh washer at every oil change, whether the car is guided by Honda’s Maintenance Minder or a fixed schedule. Most owners will be draining 4–5 litres of oil, so swapping a cheap crush washer each time is a no-brainer insurance against leaks on the driveway. When refitting, they’ll snug the plug to the factory spec of about 39 N·m with a torque wrench—tight enough to seal, not so tight it risks stripping threads. Reusing a flattened washer can force people to over-tighten, which is where trouble starts.

Common signs it’s time to bin the old washer are visible seepage around the plug, a faint oil smell after a drive, or a tell-tale spot under the car. The beauty of the genuine Honda 14 mm washer is consistency—it crushes predictably and seals first go. If using aftermarket washers, they should match the 14 mm spec and be aluminium, not hard steel.

Handy tips for Accord owners and workshops in Aus and NZ: keep a small stash of washers in the glovebox or tool trolley, wipe the sump face clean before refitting, and always torque the plug after lowering the car to level ground. Done right, the new washer means leak-free motoring for thousands of kilometres.

• Replace the sump-plug-washer at every oil change.
• Tighten the sump plug to about 39 N·m (29 lb·ft).
• Use a 14 mm aluminium crush washer matched to Honda’s spec.

Technical references: 2012 Honda Accord Owner’s Manual (Engine Oil/Changing Oil and Filter), Honda Accord (2008–2012) Service Manual (Engine Lubrication—Drain Plug and Torque), Honda Genuine Parts Catalogue listing “Gasket, Drain Plug (14 mm)” for 2012 Accord engines.

Popular questions

Do all 2012 Honda Accord engines use the same sump plug washer?
Yes. Both the 2.4L four-cylinder and 3.5L V6 use a 14 mm aluminium crush washer on the sump plug. Using the correct-size washer ensures proper sealing and the right crush when it’s torqued to spec.

Can the sump-plug-washer be reused on a 2012 Accord?
It’s not recommended. The washer is designed to deform once. Reusing it risks leaks or encourages over-tightening to chase a seal. A new washer at each oil change is cheap protection.

What torque should the sump plug be tightened to after fitting a new washer?
Around 39 N·m (29 lb·ft) is the typical Honda spec for this model. Using a torque wrench helps seal the washer properly without stressing the sump threads.