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Old 03-26-2014, 11:38 PM   #1
OUScooby
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Join Date: Nov 2005
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Location: NoHo
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'04 WRX 307whp278tq
'99 Imp L, '72 MGB

Default Denso part no for front o2 sensor.

Does anyone know the part no from denso for the front o2 sensor?

To clarify I'm looking for the part no from denso who makes the oem sensor NOT the part number from subaru parts. As nd I'm looking for the front o2 sensor, the one in the headers not the rear o2 sensor in the downpipe.
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Old 03-27-2014, 12:04 AM   #2
KamekazeSTI
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Here you go...I put one of these in last year. Really well made compared to the actual OEM one. Still Denso front o2 plug n play.

http://www.napaonline.com/Catalog/Ca...195_0427840368
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Old 03-27-2014, 12:43 AM   #3
OUScooby
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Sorry I forgot to specify it is for an 04 WRX, this one seems to be listed for the 2.5L motor, is it the same for the 2.0L motor?
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Old 03-27-2014, 10:26 AM   #4
JonnyV2889
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Google 2 seconds

Denso 234-9011 Air Fuel Ratio Sensor:Amazon:AutomotiveDenso 234-9011 Air Fuel Ratio Sensor:Amazon:Automotive

Rockauto is also good. They list OEM part number and OE manufacturer if available. It was for this part.
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Old 03-27-2014, 10:27 AM   #5
KamekazeSTI
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Ah come on man.... I lead you to an online part store with vehicle specific sections and you wont even look through that? All I did was change to an 04 in the vehicle specs then o2 sensors...and voila! Front o2 for your car....


http://www.napaonline.com/Catalog/Ca...120_0296295483
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Old 03-27-2014, 03:26 PM   #6
OUScooby
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'04 WRX 307whp278tq
'99 Imp L, '72 MGB

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I've searched the auto parts catalogs but different sites yield different results for denso sensors with different part numbers. I'm trying to confirm which one is the correct part no. Or perhaps any of them will work?
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Old 03-27-2014, 03:33 PM   #7
silviajdm
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Denso 234-9011 is what you need. When you select 2004 on the NAPA site, it will show you the right one. Also the Amazon link above is correct also. 234-9120 is for the 2.5l.....do not buy.
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