Given that NGK / NTK O2 sensors are now being discontinued, I felt that it was time to update this thread. For a long time in the TJ community it was well known that NGK / NTK O2 sensors were the only ones that didn't have issues with reoccurring OBDII error codes. Fortunately it would appear that many others in this thread have found a solution. Walker O2 sensors have been widely reported to be trouble free with our TJ PCMs.
Because of all the good feedback I've been hearing about Walker O2 sensors, I'm going to update this thread below to include all of the Walker O2 sensors (as well as links) for each year and model of TJ. Thanks to all of you who have reported on the Walker O2 sensors for making this possible.
FWIW, Walker sensors are made in Japan. This is a very good thing and a big step above any of the crap quality Chinese sensors you'll find at Autozone and the likes.
4-Cylinder Engines
1997-2000
250-24942 - Bank 1, Sensor 1 - OE Base Sensor
250-24943 - Bank 1, Sensor 2 - OE Base Sensor
350-34511 - Bank 1, Sensor 1 - OE Replacement
350-34439 - Bank 1, Sensor 2 - OE Replacement
2001-2004
250-24345 - Bank 1, Sensor 1 - OE Base Sensor
250-24345 - Bank 1, Sensor 2 - OE Base Sensor
350-34320 - Bank 1, Sensor 1 - OE Replacement
350-34320 - Bank 1, Sensor 2 - OE Replacement
2005-2006
250-24253 - Bank 1, Sensor 1 - OE Base Sensor
250-24253 - Bank 1, Sensor 2 - OE Base Sensor
350-34039 - Bank 1, Sensor 1 - OE Replacement
350-34039 - Bank 1, Sensor 2 - OE Replacement
6-Cylinder Engines
1997-2000
250-24942 - Bank 1, Sensor 1 - OE Base Sensor
250-24943 - Bank 1, Sensor 2 - OE Base Sensor
350-34511 - Bank 1, Sensor 1 - OE Replacement
350-34439 - Bank 1, Sensor 2 - OE Replacement
2001-2003
250-24259 - Bank 1, Sensor 1 - OE Base Sensor
250-24259 - Bank 1, Sensor 2 - OE Base Sensor
250-24345 - Bank 1, Sensor 1 - OE Base Sensor
250-24345 - Bank 1, Sensor 2 - OE Base Sensor
350-34320 - Bank 2, Sensor 1 - OE Replacement
350-34320 - Bank 2, Sensor 2 - OE Replacement
350-34598 - Bank 2, Sensor 1 - OE Replacement
350-34598 - Bank 2, Sensor 2 - OE Replacement
2004
250-24460 - Bank 1, Sensor 1 - OE Base Sensor
250-24345 - Bank 1, Sensor 2 - OE Base Sensor
250-24253 - Bank 2, Sensor 1 - OE Base Sensor
250-24259 - Bank 2, Sensor 2 - OE Base Sensor
350-34592 - Bank 1, Sensor 1 - OE Replacement
350-34320 - Bank 1, Sensor 2 - OE Replacement
350-34039 - Bank 2, Sensor 1 - OE Replacement
350-34598 - Bank 2, Sensor 2 - OE Replacement
2005-2006
250-24460 - Bank 1, Sensor 1 - OE Base Sensor
250-24253 - Bank 1, Sensor 2 - OE Base Sensor
250-24680 - Bank 2, Sensor 1 - OE Base Sensor
250-24460 - Bank 2, Sensor 2 - OE Base Sensor
350-34592 - Bank 1, Sensor 1 - OE Replacement
350-34039 - Bank 1, Sensor 2 - OE Replacement
350-34213 - Bank 2, Sensor 1 - OE Replacement
350-34592 - Bank 2, Sensor 2 - OE Replacement
OE Base Sensor vs OE Replacement Sensor
From what little information I can find, it sounds like the "OE base sensor" is designed to be a direct replacement for OEM NTK sensors, and the "OE replacement" is a less expensive or "economy priced" version. More or less a premium vs economy thing.
It would be interesting to see which versions those who have been using Walker went with. Does the economy fall victim to the same sensor error issues that most aftermarket sensors do? Is the Base the version that line that people have been having good luck with?
These 2 videos are where I am drawing my assumption:
You have to pay very close attention the language being used. At first view I thought the videos were the same.
At 1:08 "Walker's aftermarket oxygen sensors" video titled "...OE Replacement..."
At 1:23 "With our Walker Original Equipment oxygen sensors" video titled "...OE Based..."
Because of all the good feedback I've been hearing about Walker O2 sensors, I'm going to update this thread below to include all of the Walker O2 sensors (as well as links) for each year and model of TJ. Thanks to all of you who have reported on the Walker O2 sensors for making this possible.
FWIW, Walker sensors are made in Japan. This is a very good thing and a big step above any of the crap quality Chinese sensors you'll find at Autozone and the likes.
4-Cylinder Engines
1997-2000
250-24942 - Bank 1, Sensor 1 - OE Base Sensor
250-24943 - Bank 1, Sensor 2 - OE Base Sensor
350-34511 - Bank 1, Sensor 1 - OE Replacement
350-34439 - Bank 1, Sensor 2 - OE Replacement
2001-2004
250-24345 - Bank 1, Sensor 1 - OE Base Sensor
250-24345 - Bank 1, Sensor 2 - OE Base Sensor
350-34320 - Bank 1, Sensor 1 - OE Replacement
350-34320 - Bank 1, Sensor 2 - OE Replacement
2005-2006
250-24253 - Bank 1, Sensor 1 - OE Base Sensor
250-24253 - Bank 1, Sensor 2 - OE Base Sensor
350-34039 - Bank 1, Sensor 1 - OE Replacement
350-34039 - Bank 1, Sensor 2 - OE Replacement
6-Cylinder Engines
1997-2000
250-24942 - Bank 1, Sensor 1 - OE Base Sensor
250-24943 - Bank 1, Sensor 2 - OE Base Sensor
350-34511 - Bank 1, Sensor 1 - OE Replacement
350-34439 - Bank 1, Sensor 2 - OE Replacement
2001-2003
250-24259 - Bank 1, Sensor 1 - OE Base Sensor
250-24259 - Bank 1, Sensor 2 - OE Base Sensor
250-24345 - Bank 1, Sensor 1 - OE Base Sensor
250-24345 - Bank 1, Sensor 2 - OE Base Sensor
350-34320 - Bank 2, Sensor 1 - OE Replacement
350-34320 - Bank 2, Sensor 2 - OE Replacement
350-34598 - Bank 2, Sensor 1 - OE Replacement
350-34598 - Bank 2, Sensor 2 - OE Replacement
2004
250-24460 - Bank 1, Sensor 1 - OE Base Sensor
250-24345 - Bank 1, Sensor 2 - OE Base Sensor
250-24253 - Bank 2, Sensor 1 - OE Base Sensor
250-24259 - Bank 2, Sensor 2 - OE Base Sensor
350-34592 - Bank 1, Sensor 1 - OE Replacement
350-34320 - Bank 1, Sensor 2 - OE Replacement
350-34039 - Bank 2, Sensor 1 - OE Replacement
350-34598 - Bank 2, Sensor 2 - OE Replacement
2005-2006
250-24460 - Bank 1, Sensor 1 - OE Base Sensor
250-24253 - Bank 1, Sensor 2 - OE Base Sensor
250-24680 - Bank 2, Sensor 1 - OE Base Sensor
250-24460 - Bank 2, Sensor 2 - OE Base Sensor
350-34592 - Bank 1, Sensor 1 - OE Replacement
350-34039 - Bank 1, Sensor 2 - OE Replacement
350-34213 - Bank 2, Sensor 1 - OE Replacement
350-34592 - Bank 2, Sensor 2 - OE Replacement
OE Base Sensor vs OE Replacement Sensor
From what little information I can find, it sounds like the "OE base sensor" is designed to be a direct replacement for OEM NTK sensors, and the "OE replacement" is a less expensive or "economy priced" version. More or less a premium vs economy thing.
It would be interesting to see which versions those who have been using Walker went with. Does the economy fall victim to the same sensor error issues that most aftermarket sensors do? Is the Base the version that line that people have been having good luck with?
These 2 videos are where I am drawing my assumption:
You have to pay very close attention the language being used. At first view I thought the videos were the same.
At 1:08 "Walker's aftermarket oxygen sensors" video titled "...OE Replacement..."
At 1:23 "With our Walker Original Equipment oxygen sensors" video titled "...OE Based..."