This is to serve as a cross reference for you guys are needing to change out your oxygen sensors for new ones. The first list of part numbers is for standard/OEM replacement oxygen sensors if you're using shorty or stock headers.
Description: Unheated, Three-wire, 1 connector, wire 6½ inch long, M 18x 1.5 thread.
Bosch: 13942
Borg Warner: OS109
Kem: 138-129
Standard: SG23
Echlin: OS202
Niehoff: FE-809
Tomco: 11016
AC Delco: 213-612
Autolite: 02087
Wells: SU212
Airtex: 20-2002
A little advice when trying to find these on the cheap if you're not in a hurry with plenty of time to kill. Go to
www.ebaymotors.com and do a manufacturer/part number search under "Parts & Accessories" (example BOSCH OXYGEN SENSOR or BOSCH 13942). Also, be sure to click the box that says "Search Titles and Descriptions." Sometimes sellers may have these sensors for sale not knowing what applications they are for and/or just don't need them. Therefore, they are sold WAY cheaper than in parts stores.
When running long tube headers like BBK 1516 or MACs the oxygen sensors needed are the Bosch part number 13953. This sensor has the 16½ inch wiring harness needed since the sensor bungs are relocated down in the collectors (available at Advance/Discount Auto Parts & Autozone). More than likely you're going to need to replace your oxygen sensors anyway so you shouldn't have to spend money on sensor extension harnesses if your sensors are old or have a lot of miles on them.
Description: Unheated, Three-wire, 1 Connector, Wiring Harness 16½ Inches Long. M 18x 1.5 Thread.
Cross Reference With:
Borg Warner: OS116
Kem: 138-130
Standard: SG40
Echlin: OS204
Niehoff: FE-821
Tomco: 11042
Bosch: 13950/13953
AC Delco: 213-19?
Autolite: (need to research further)
Wells: SU235
