20Pcs M16 Oil Drain Plug Gasket, Aluminum Crush Washer, Seal Ring by , 16mm*22mm*2mm

Twenty aluminium crush washers in M16: 16 mm bore, 22 mm outside, 2 mm thick. A sump plug is a connection you only ever touch with the engine off, and this soft ring under its head is what decides whether the fresh oil stays where you poured it — so it pays to know just what the supplier promises for it, and where those promises stop.

How a soft ring seals a steel plug

The sealing story here is mechanical rather than chemical. The supplier quotes 99 per cent pure aluminium with enough give that, as the drain plug is tightened, the washer conforms completely to the surface of the oil pan and seals against it — that conformity, not any coating, is what stands between the sump and your driveway. Aluminium brings its own tidiness besides: it does not rust, and the supplier rates it resistant to acid, to alkali and to corrosion from sitting in oil.

One size, twenty deep

Every washer in the set is the same M16 ring — a deliberate single-size pack rather than an assortment, which suits anyone who services the same vehicles repeatedly and would rather a drawer of the right washer than a tray of near misses. Match it by measuring: a 16 mm plug thread and a seat that a 22 mm face will cover.

Key features

• 99 per cent pure aluminium: the supplier's material claim, soft enough to do the crushing a crush washer is named for.
• Seals by conforming: tightening the plug presses the washer flat to the pan face, and that fit is the seal.
• No assortment to sort: all twenty pieces are the one M16 size.
• Unbothered by oil: rated by the supplier as resistant to acid and alkali, and not corroded by oil contact.
• Service-shelf quantity: twenty washers per set.

Specifications

• Fits thread: M16
• Outside diameter: 22 mm
• Bore (inner diameter): 16 mm
• Section thickness: 2 mm
• Metal: aluminium, 99 per cent pure per the supplier
• Set size: 20 washers, one size

Where the claims run out

• Neither a torque figure nor a temperature rating accompanies these washers; for a component whose working position is against hot oil, the supplier's wording stays qualitative.
• No vehicle fitment list is supplied — match by the M16 thread and the dimensions above, not by make and model.
• Elsewhere on this listing the seal is promised leak-free; the description's own, lesser wording is "to prevent oil leakage", and the weaker sentence is the one to hold us to.
• The title carries a stray "by" left over from a stripped brand name — the copy names no manufacturer at all.

Measure the plug before you order, and reach for this set when the thread comes up at sixteen millimetres — the size every one of the twenty washers is cut to.

Returns, Refunds, and Replacements Products that are received faulty, damaged, or not as described are eligible for a return, refund, or replacement in accordance with the Australian Consumer Law (ACL). We are committed to ensuring all products meet the standards of quality and reliability expected by our customers. However, please note that we do not accept returns or provide refunds for change of mind. We encourage you to carefully consider your purchase to ensure it meets your needs and expectations.

Delivery Timeframe

Please note that we cannot guarantee the exact date of arrival, and the delivery timeframes (excluding weekends and public holidays) are as follows:

For customers in Victoria, approximately 7-10 working days; For customers in NSW, SA, ACT, and QLD, approximately 9-12 working days; For customers in WA, NT, and TAS, approximately 9-12 working days.