MKI MR2 Coolant Reservoir Cap Assembly
[16405-16020]

FINALLY! no more tape or liquid gasket! I'm tire of garbage getting into my tank or the lid falling off all the time.

If you have any question about the integrity of your coolant reservoir at all, do your engine a favor and buy this simple kit. It will create the sealed system that is required for your cooling system to operate correctly. The plastic is much better quality that the OEM and is not prone to drying and crumbling like the 25 year old OEM parts. Buying a new radiator cap at the same time is a very good idea. Bleed the air and enjoy a properly cooled engine.

one less leak on my 87 NA. I hadn't realized how important is was to not be sucking air back into the system like what can happen with a broken cap.

Perfect replacement for my stock cap which had holes in the plastic

This is a must. Looked for one of these for years. It is even made in Japan! A little tough to get on the first time, but it fits perfectly.