I just replaced mine and here are the parts numbers --
https://parts.toyotaabq.com/auto-pa...-v8-gas-engine/body-cat/inner-components-scat
Pretty sure that the parts are the same for all 4th gen 4Runners, v8, v6, 4x4, 4x2. Of course, verify first before purchase since my parts search was for a v8 limited 4x4. The rear shields are the same part number for both sides, but the fronts are different. You will need parts # 8, 9 and 10 (remember, there are 5 clips per shield) on that page, then go and buy from your own dealership or favorite online store.
Some of the members' suggestions here for a DIY solution were really good since the prices for a piece of rubber and some plastic clips seem high, but for me they are pretty specialized parts and worth the money over the time I would spend making my own. Plus, I really like the peace of mind I get from having OEM Toyota parts on my rig.
rugger
this site has much better prices by at least 15% cheaper, $23 there vs only $20 here https://www.toyotapartsdeal.com/oem...ta&Model=4Runner&Year=2006&Submodel=&Filter=()