OEM Toyota vaccum caps in 3mm (1/8") and 9mm (3/8".) Aftermarket parts store ones tend to dry rot and start cracking in less than a year. On SW20 2GRFE swaps these are useful for the small port on the intake runner, and the brake booster port, depending on how you're routing your hoses. That said I used them for other things too. They work great on motorcycles!
PN 90339-03002 for 3mm cap
PN 90339-09003 for 9mm cap
No gatekeeping here! If you're doing an order from a dealer/amayama/etc for other parts, you should probably get them there. But if you're ordering one of my other parts and want to add one here they are!