Sensor Replacement

[Bobs 300]

I just bought this car and after three weeks ths Bank two sensor 1 went out(stopped working ) and I want to replace it --I went to Toyota and they want almost 360 $ to replace it-I spoke with a friend and he volunteered to help put in a new one --must I go to toyota to buy one or are there good aftermarket ones out there--what websites?--what brands?--Thanks to all responders--the car is 2001 ES 300 w/63000miles

[dcfish]

First Off...Welcome to The Club When it comes to Sensors, Plugs, Etc... Always Buy the OEM Part, Always, Or you will pay more in the End...Just Trust Me on this one...

[lexis lexus]

Easy job up front, hardly have to take anything off I bet. (altho am not familiar with your gen 3s300)

If ya got the money, then going OEM is the right idea w/ oxygen sensors. But these sensors are available aftermarket for less $$. O2 sensors are like spark plugs, they wear out. IMHO buying spark plugs or O2 sensors at Toyoto or Lexus dealerships will be at least a 20% mark up and maybe even more. Check with local auto stores, amazon, rock auto. You'll be amazed...

LL