3rd gen T4R’s have the same door check as the Toyota Tacoma 1995 through 2000(maybe until 2004). Amazon sells them for around 30 bucks. You can actually get two of them for 30 bucks but you’d have to wait for two months and they are also sold on Amazon. They fit both driver side and passenger side doors.
TRQ Front Door Check Driver or Passenger Side LH RH for Toyota Tacoma New
https://a.co/d/7L0YBoK
I have two 3rd gen 4Runners And replaced all the front door checks. They were great and are not expensive.