Parts for your 2002 Daihatsu Yrv-Sump plug washers

2002 Daihatsu YRV sump plug washers

Technical sources confirm the 2002 Daihatsu YRV does use a separate sump plug washer. The Daihatsu YRV M2# series Workshop Manual (Lubrication section) details the engine oil drain plug fitted with a replaceable gasket, and the Daihatsu Electronic Parts Catalogue (EPC) lists a “Gasket, drain plug (12 mm)” for K3‑VE and K3‑VET engines. Genuine Daihatsu gasket part numbers typically appear in the 90043‑11*** range, with many catalogues also cross‑referencing to the common Toyota 12 mm alloy crush washer (e.g., 90430‑12031). That means a sump plug washer is relevant and should be replaced during servicing.

On the 2002 Daihatsu YRV, the sump plug washer is a small, single‑use crush gasket that seals the drain plug to the alloy sump. When the plug is torqued up, the soft aluminium or copper washer deforms to fill micro‑gaps between the mating faces. That crush is what keeps engine oil from weeping out over time, especially as the engine heats and cools across countless trips around town and up the motorway.

Best practice is to fit a fresh washer at every oil change. It costs little, but it saves mess on the driveway, avoids under‑tray oil mist, and protects the sump threads from over‑tightening. The typical tightening torque for the YRV’s drain plug is around 29 N·m (check the vehicle’s service data for the exact spec). Clean the sump face, fit a new 12 mm crush washer the right way around (flat face to the sump is common), and tighten with a torque wrench—no need to swing off it like a breaker bar. If the old washer looks scored, cupped, or stuck to the sump, don’t reuse it.

A few handy tips owners appreciate:

• Replace the washer at each oil and filter change—easy win for leak prevention.
• Never double‑stack washers, it upsets torque and sealing.
• If using a magnetic or aftermarket plug with an integrated rubber seal, confirm whether a separate washer is still required—OE YRV plugs use a crush washer.
• If there’s a faint drip after service, recheck torque and inspect the washer seating surface for nicks.

For parts, most reputable suppliers will list a 12 mm alloy or copper crush washer for the YRV/K3‑series engines. Sticking with OEM‑style alloy washers keeps feel and sealing predictable, which techs across Australia and New Zealand prefer on these sumps.

Popular questions about 2002 Daihatsu YRV sump plug washers

What size washer does the 2002 YRV use?
The YRV with K3‑VE or K3‑VET engines takes a 12 mm drain plug washer. Most parts catalogues list an aluminium crush type to suit, matching the EPC entry for a “Gasket, drain plug (12 mm)”. Always confirm against the vehicle’s plug if it has been changed before.

Can the washer be reused?
It’s designed as single‑use. Once crushed, it won’t spring back, so reusing often leads to slow weeps. Swapping it at each oil change is cheap insurance against leaks and stripped threads from over‑tightening.

What torque should be used on the drain plug?
The typical spec for the YRV is about 29 N·m. If exact data isn’t at hand, aim for the factory figure in the service manual rather than “tight by feel”. Correct torque with a fresh washer seals properly without stressing the sump.