Parts for your 2013 Toyota Crown-Sump plug washers

2013 Toyota Crown sump plug washers: what they do and when to replace them

For the 2013 Toyota Crown, a sump plug washer is absolutely used and relevant. Toyota’s Service Information (TIS), the Crown (S210 series) repair manual, and the Toyota Electronic Parts Catalog all specify a replaceable drain plug gasket (commonly Toyota P/N 90430-12031, aluminium, 12 mm) for the oil pan drain plug across the engines offered that year, including 2AR-FSE hybrid, 4GR-FSE 2.5 V6 and 2GR-FSE 3.5 V6. These sources instruct replacing the washer whenever the engine oil is drained.

The sump plug washer is a small, crush-style gasket that sits between the sump (oil pan) and the drain plug head. Its job is to deform slightly as the plug is torqued, filling tiny imperfections so oil can’t seep past. That controlled crush also helps the plug reach the correct clamping load without over-stressing the alloy sump threads—handy insurance on engines where stripped threads are an expensive fix.

On the 2013 Crown, the washer is typically aluminium, sized for a 12 mm drain plug. Toyota treats it as a single-use item. Reusing a flattened washer can lead to weeping around the plug or the temptation to overtighten, which risks damaging the sump. The practical move is to keep a few genuine or quality aftermarket washers on hand and fit a fresh one at every service.

During servicing, a technician will wipe the sump’s sealing face clean, inspect the plug head and threads, fit the new washer, then torque the plug to spec. For most Toyota V6 and hybrid four-cylinder variants of this era, the drain plug torque is typically around 39–40 N·m. Exact values can vary by engine, so checking the Crown’s repair manual is wise. No thread sealant is needed, the crush washer does the sealing. Avoid stacking washers or mixing odd sizes—if it doesn’t seat flat, it’s the wrong part.

If a Crown shows a light oil mist around the drain plug a few days after a change, odds are the old washer was reused or the surface wasn’t clean. Swapping in a correct, new washer and retorquing usually sorts it. Copper washers can work on some Toyotas, but aluminium is what Toyota lists for this model line, and it provides a predictable crush at the specified torque.

• Replace the washer at every oil change.
• Clean mating surfaces, don’t use sealants.
• Tighten to the specified torque (about 39–40 N·m for many 2013 Crown engines, verify by engine code).
• Use the correct 12 mm Toyota-style washer (e.g., 90430-12031).

Popular questions

What size sump plug washer does a 2013 Toyota Crown use?

The 2013 Crown uses a 12 mm crush washer commonly catalogued by Toyota as 90430-12031 (aluminium). That size suits the M12 drain plug used across the Crown’s 2AR-FSE, 4GR-FSE and 2GR-FSE engines. When in doubt, confirm by VIN in the Toyota EPC to ensure the right fit for the exact variant.

How often should the sump plug washer be replaced on a 2013 Crown?

It’s treated as single-use—replace it at every oil change. The aluminium washer is designed to crush once to create a perfect seal, reusing it can cause seepage or lead to over-tightening. When fitting the new washer, torque the plug to the repair manual spec (commonly about 39–40 N·m for these engines).

Can a copper washer be used instead of aluminium on a 2013 Crown?

Copper washers can seal, but Toyota specifies aluminium for this application. If copper is used, it must match the 12 mm sizing and thickness, and it should be annealed if reused—though replacing with a new, correct aluminium washer remains the safer, manufacturer-aligned choice for consistent torque and sealing.