I think only going to find that at a Toyota dealership.
There are two different cam bolts used for the front and rear suspension.
Front: P/N 48190-14020 (Labeled as 'RR', cam/washer is 48198-14020) or 48190-14030 (Labeled as 'FR', cam/washer is 48198-14030), cam/washer P/N. I'm sure the first letter indicates 'Front' or 'Rear' but I don't recall there being a difference between Left and Right sides so I'm not sure what the extra 'R' indicates in the description in the EPC... Double check the part numbers with the dealer when ordering.
The front bolts should all run under $20 and the rear under $15. The cam/washer should be around $5.
Rear: P/N 48190-14010 for the bolt, if you need the cam/washer for the back side the p/n is 48198-50011 and you'll also need a nut.
A parts store like NAPA may be able to get you replacements if you can provide the Toyota part numbers.
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