Parts for your 2014 Toyota Hiace-Sump plug washers

2014 Toyota Hiace sump plug washers — are they used and what to know

Yes, the 2014 Toyota Hiace uses a sump plug washer (also called a drain plug gasket). Toyota service documentation for the 200 Series Hiace (KDH/TRH) in the Engine Oil replacement procedure specifies fitting “a new gasket to the drain plug” at each oil change. The Toyota Electronic Parts Catalogue lists a 12 mm aluminium drain plug gasket, part number 90430‑12031, for common 2014 Hiace engines such as the 1KD‑FTV (3.0 D‑4D) and 2TR‑FE (2.7 petrol). The 2014 Owner’s Manual maintenance section also notes replacing the gasket when refitting the plug. These technical sources confirm the washer is fitted and service-relevant.

On a 2014 Toyota Hiace, the sump plug washer’s job is simple but vital: it creates a reliable seal between the drain plug and the sump so engine oil stays put. It’s a crush-type washer, usually aluminium, designed to deform slightly as the plug is torqued up, filling tiny imperfections on the mating faces. That one-time “crush” is what makes the seal so dependable.

Because it’s a single-use seal, the best practice is to replace the washer at every oil change. Reusing an old one can lead to weeping around the plug, tell‑tale wetness on the sump, or a drip on the driveway. It’s cheap insurance against leaks, oil loss, and potential mess. For Hiace owners clocking up big kays around Australia or New Zealand, carrying a couple of spares in the glovebox is a smart move.

When servicing a 2014 Hiace, the approach is straightforward:

• Confirm the correct washer: 12 mm crush washer (Toyota P/N 90430‑12031 is commonly specified for 2014 Hiace variants).
• Clean the sump’s sealing face and the plug threads before refitting.
• Hand‑start the plug to avoid cross‑threading, fit a new washer, and tighten to the factory torque. Don’t “give it a bit more” if it weeps — check the washer and sealing face instead.

Other handy tips:

• Never stack washers, and avoid mixing materials that don’t match spec.
• If the plug or sump face is nicked, address that before blaming the washer.
• After the first short drive, have a quick look underneath for any fresh oil.

Use a quality washer that matches the Hiace’s size and thickness. Genuine or reputable aftermarket options are fine — just stick with the correct 12 mm crush style and torque the plug to the spec in the service manual. Done right, it’ll seal first go and stay dry between services.

Popular questions about 2014 Toyota Hiace sump plug washers

What size sump plug washer does a 2014 Hiace use?
Most 2014 Hiace models use a 12 mm crush washer. Toyota’s parts listing commonly shows P/N 90430‑12031 (aluminium) for 1KD‑FTV and 2TR‑FE engines. If in doubt, confirm by VIN or checking the existing plug and washer size before servicing.

Can the sump plug washer be reused?
It’s not recommended. The washer is designed to crush once to form the seal. Reusing it can cause seepage or leaks. Fit a new washer at every oil change for a clean, reliable seal.

There’s a small oil leak after an oil change — should the plug be tightened more?
Don’t just crank it tighter. First, confirm a new, correct 12 mm crush washer was fitted and the sealing face is clean and flat. Then tighten to the factory torque. Over‑tightening risks stripping threads or distorting the washer so it won’t seal properly.