Just replaced these with 4 new OEM caps. Part Link:
42603-35760
Sold as a set of 4 only. $80, includes UPS shipping to anywhere in lower 48. (New retail is about $90 EACH)
These are the originals off of my 2001 Limited. Replaced them today as part of my tire rotation.
PM if you would like more info, or PayPal to:
[email protected] for immediate shipping.