Parts for your 2013 Toyota Hilux-Sump plug washers

2013 Toyota Hilux sump plug washers

Based on technical sources, a sump plug washer is indeed used on the 2013 Toyota Hilux. The Toyota service manual procedures for the KUN/GGN series (covering 1KD-FTV, 2KD-FTV and 1GR-FE engines) specify replacing the drain plug gasket whenever the engine oil is changed. Toyota’s Electronic Parts Catalogue for these Hilux models lists a dedicated oil drain plug gasket (commonly referenced as 90430-12031, 12 mm aluminium crush type). Reputable parts catalogues used in workshops across Australia and New Zealand also list a sump plug washer for this model. These sources collectively confirm the washer is a standard, service-replaceable item on the 2013 Hilux.

On a 2013 Toyota Hilux, the sump plug washer’s whole job is to seal the gap between the steel drain plug and the alloy or steel sump. It’s a soft “crush” gasket that deforms slightly as the plug is tightened, creating a reliable, leak-free seal. That tiny ring does a lot: it stops seepage that can make a mess of the driveway, protects the sump’s sealing face, and helps ensure correct clamping force without over-tightening the plug.

Because the washer is designed to crush once, it’s considered a consumable—fit a fresh one at every oil change. Reusing a flattened washer can lead to weeping or drips, especially after a few heat cycles or rough corrugations on outback roads. For the Hilux, workshops typically use a 12 mm ID aluminium crush washer (Toyota genuine or a quality equivalent). If you’re servicing at home, confirm the size against your VIN in a trusted parts catalogue and keep a few spares handy.

Best practice during servicing is straightforward:

• Clean the sump’s sealing face and the drain plug head—no grit, no old gasket stuck on.
• Fit a new washer every time, do not stack old washers or use thread tape or sealant.
• Tighten the plug to the workshop manual’s specified torque for your engine variant.
• Run the engine, then check for any seepage after a short drive.

If the old washer looks gouged, severely flattened, or the plug face is scored, replace the affected bits before refilling with oil. Some aftermarket plugs have bonded washers, if fitted, replace the plug assembly as directed by the maker. For most 2013 Hilux utes, the separate aluminium crush washer is the go. Swapping it with each service keeps the lubrication system tidy, helps maintain oil level, and saves chasing annoying minor leaks later.

Popular questions

Does a 2013 Toyota Hilux use a sump plug washer?
Yes. Toyota’s service procedures for the KUN/GGN series specify a new drain plug gasket at each oil change, and the parts catalogue lists a dedicated washer for these models. It’s a standard crush-type sealing ring that should be replaced whenever the plug is removed.

What size or part number is the sump plug washer on a 2013 Hilux?
Workshops commonly use a 12 mm ID aluminium crush washer, often referenced as Toyota 90430-12031 or an equivalent. Variations can exist by engine and market, so it’s smart to confirm against the vehicle’s VIN before purchasing.

Can the sump plug washer be reused?
It’s not recommended. The washer is designed to deform once to create a seal. Reusing it risks weeping, drips, or the temptation to over-tighten the plug, which can damage threads or the sump face. Fit a fresh washer with every oil change.