Just want to verify these are the correct O2 sensors for my 2000

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Nov 22, 2011 | 10:29 PM

bigboy813

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Joined: Mar 2010

Posts: 497

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From: Santa Clarita,CA

Year: 2000 Sport

Model: Cherokee

Engine: I6 4.0

Just want to verify these are the correct O2 sensors for my 2000

I just want to verify that these are the correct ones need and that i only need 2.

upstream
http://www.summitracing.com/parts/NG...EE&prefilter=1

Downstream
http://www.summitracing.com/parts/NGK-23099/

Nov 23, 2011 | 11:45 AM

mcguyver_xj

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Joined: Oct 2009

Posts: 2,231

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From: West Springfield, MA

Year: 1999

Model: Cherokee

Engine: 4.0

no a 2000-2001 cherokee has stricter emissions regulations and has two pre-cats and one after cat so you have two upstream 02 sensors (bank 1 and bank 2) and two downstream 02 sensors (bank 1 and bank 2) if i am correct the front of the engine is bank 1 and the rear is bank 2 the after-cat is not monitored by an 02 sensor and downstream 02 sensors won't work in upstream positions...and also denso is the correct style 02 sensor bosch and ngk are not...