Engine oil drain plug M28x1mm for Aprilia, Piaggio, Vespa 4T 50-125-150-200-250-300

Engine oil drain plug for Piaggio 4-stroke engines from 50 to 300 cc, fitted to Piaggio, Vespa, Aprilia, Gilera and Derbi scooters. It has a 28 mm diameter with a 1 mm pitch (M28x1) and comes complete with its sealing O-ring. It is the plug that closes the drain at every oil change.

When to replace it

The drain plug comes out at every oil change and the O-ring gets squashed or hardens over time. It is worth replacing the plug, or at least the O-ring, if it is deformed, if the thread is damaged or if you see drips under the engine.

Features

• Engine oil drain plug
• 28 mm diameter, 1 mm pitch (M28x1)
• Sealing O-ring included
• Hexagonal head with bearing flange
• Metal body
• For Piaggio 4T engines from 50 to 300 cc
• About 300 models and versions in the applications table

Compatibility

For Piaggio 4-stroke engines from 50 to 300 cc. The table below lists every compatible model and version, including a few 400 and 500 cc. Check the model, engine size and year of your scooter before ordering.

Fitting and tips

Drain the oil with the engine warm, clean the seat and fit the new O-ring. Screw the plug in by hand until it seats, then tighten to the torque in the workshop manual without forcing it. Refill the oil, start the engine and check for leaks.

Frequently asked questions

Which engines does this plug fit?

Piaggio 4-stroke engines from 50 to 300 cc on the Piaggio, Vespa, Aprilia, Gilera and Derbi models in the applications table.

Is the O-ring included?

Yes, the plug is complete with its sealing O-ring.

What are the diameter and pitch?

28 mm diameter, 1 mm pitch (M28x1).

Does the O-ring need changing at every oil change?

It is worth replacing when it is squashed, hardened or damaged.