Parts for your 2000 Daihatsu Gran move-Sump plug washers

2000 Daihatsu Gran Move sump plug washers

Technical sources indicate the 2000 Daihatsu Gran Move is fitted with a separate sump plug washer (crush-type drain plug gasket). The Daihatsu Pyzar/Gran Move Workshop Manual (Lubrication section, G303/G313 series) specifies replacing the “gasket, drain plug” when changing engine oil, and the Daihatsu Electronic Parts Catalogue (EPC) lists the drain plug gasket as a distinct service item for the Gran Move’s HC-EJ/HD-EP engines. Independent service data such as Autodata also notes the washer as a replace-on-removal consumable. So, a sump plug washer is relevant and used on this vehicle.

For the 2000 Gran Move, the sump plug washer does a deceptively big job for a tiny bit of metal. It’s a soft crush washer—usually aluminium or copper—that deforms once when the sump plug is tightened. That controlled crush creates a reliable seal between the plug and the sump, preventing weeping leaks and helping the plug reach its specified torque without chewing out the threads. It’s cheap insurance against drips on the driveway and low oil levels down the track.

As part of regular servicing, this washer should be replaced every oil change, or any time the drain plug is removed. Reusing an old, flattened washer can lead to slow leaks, heat-cycle loosening, or over-tightening to “make it seal”, which risks stripping the sump threads. Owners should keep a couple of correct-size washers on hand (the Gran Move commonly uses a 14 mm crush washer, always confirm against the EPC or the old part). Matching the inner diameter, outer diameter, and style (flat crush vs bonded) matters for a proper seal.

Good workshop practice for the Gran Move includes: cleaning the plug and sump sealing face, starting the plug by hand to avoid cross-threading, using the specification from the workshop manual for final torque, and avoiding thread tape or goop—neither is needed when the correct crush washer is fitted. If stuck roadside, a copper washer can sometimes be softened (annealed) as a temporary measure, but it’s strictly a get-home fix and not recommended for ongoing use. Aluminium crush washers aren’t reliably reusable. A fresh washer each service keeps the little Daihatsu tidy, leak-free, and happy across Aussie and Kiwi conditions.

• Replace the washer at every oil change.
• Confirm correct washer size and style before fitting.
• Tighten to the manual’s torque—no overdoing it.

Popular questions

What size sump plug washer does a 2000 Daihatsu Gran Move use?
The Gran Move typically uses a 14 mm crush-type washer. Because some aftermarket plugs vary, best practice is to check the EPC against the VIN or measure the old washer’s inner diameter and thickness before buying spares.

How often should the sump plug washer be replaced on a Gran Move?
Every oil change, and any time the drain plug is removed. It’s a single-use crush washer—replacing it prevents seepage and avoids the temptation to overtighten the plug.

Can the old washer be reused in a pinch?
Not recommended. If it’s copper, a one-off anneal can get someone home, but the proper fix is a new washer. Aluminium washers can’t be reliably restored and should always be replaced.