Replaces

Cadillac CTS SRX STS O2 Oxygen Sensor Pair ACDelco 213-3240 - ACEEK00018

Specifications:
  • Brand New AC Delco Oxygen Sensor
  • Fits LH (Driver Side) or RH (Passenger Side) Front
  • Built and tested to strict quality control standards
  • Direct fit replacement

Our electrical and electronic parts are subject to strict quality control testing.  Once the item has been installed or plugged in, it is no longer eligible for a refund.  The item may be eligible for replacement, only if it is found to have a manufacturing defect. Before purchasing, please ensure proper diagnosis of the failed original part is performed

Lifetime Warranty

This item is backed by a Limited Lifetime Warranty. In the event this item should fail due to manufacturing defects during intended use, we will exchange the part free of charge (excludes shipping charges) for the original purchaser. Please keep your invoice for proof of this warranty.

  1. step : Removing the Wiper Arm (0:48)
    • Pry off the wiper arm cap by hand
    • Remove the 15mm nut from the wiper arm stud
    • Pull the wiper arm off the stud
  2. step : Removing the Cowl Panel (1:59)
    • Peel off the weatherstrip
    • Remove the four 7mm screws from the cowl panel
    • Lift up and carefully release the passenger side of the cowl panel
    • Remove the 10mm nut from the driver side cowl panel
    • Remove the driver side cowl panel up and out
  3. step : Removing the Wiper Transmission (2:57)
    • Remove the two 10mm bolts from the wiper transmission assembly
    • Lift the assembly up toward the center of the vehicle
    • Disconnect the transmission wiring harness
  4. step : Removing the Engine Cover (3:33)
    • Remove the oil fill cap
    • Remove the engine cover
    • Reinstall the oil cap
  5. step : Removing the Passenger Upstream O2 Sensor (3:57)
    • Remove the three 10mm bolts from cowl panel retainer connected to the firewall
    • Disconnect the O2 sensor connector on the backside of the engine
    • Loosen the O2 sensor with a sensor socket or a 22mm socket
    • Remove the sensor by hand
  6. step : Installing the Upstream O2 Sensor (6:58)
    • Install the O2 sensor by hand
    • Tighten the O2 sensor with an O2 sensor socket of 22mm socket
    • Connect the wiring harness
    • Insert the cowl panel retainer into place
    • Tighten the three 10mm bolts to the cowl panel retainer
  7. step : Installing the Engine Cover (7:55)
    • Remove the oil fill cap
    • Press on the engine cover
    • Reinstall the oil cap
  8. step : Reinstalling the Wiper Transmission (7:56)
    • Connect the wiper transmission electrical connector
    • Insert the wiper transmission into place
    • Tighten the two 10mm bolts to the wiper transmission
  9. step : Reinstalling the Cowl Panel (8:24)
    • Insert the driver side cowl panel into place
    • Tighten the 10mm nut to the driver side
    • Insert the passenger side cowl panel into place
    • Tighten the 7mm screws to the panel
    • Press on the weatherstrip
  10. step : Installing the Wiper Arm (9:42)
    • Put the wiper arm onto the stud
    • Fasten the 15mm nut onto the wiper arm stud
    • Push on the wiper arm cap

Tools needed for replacement:

    Materials, Fluids, and Supplies

  • Painter's Tape

  • Ratchets & Related

  • Torque Wrench
  • Socket Extensions

  • Sockets - Metric

  • 7mm Socket
  • 10mm Socket
  • 15mm Socket

  • Specialty Tools

  • O2 Sensor Socket

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Vehicle Fit

  • 2004-2005 Cadillac CTS V6 3.6L Oval Plug Upstream O2 Oxygen Sensor Pair ACDelco 213-3240
  • 2005 Cadillac CTS V6 2.8L Oval Plug Upstream O2 Oxygen Sensor Pair ACDelco 213-3240
  • 2006-2007 Cadillac CTS V6 2.8L Upstream O2 Oxygen Sensor Pair ACDelco 213-3240
  • 2006-2007 Cadillac CTS V6 3.6L Upstream O2 Oxygen Sensor Pair ACDelco 213-3240
  • 2005 Cadillac SRX Oval Plug Upstream O2 Oxygen Sensor Pair ACDelco 213-3240
  • 2006 Cadillac SRX V6 3.6L Upstream O2 Oxygen Sensor Pair ACDelco 213-3240
  • 2005 Cadillac STS Oval Plug Upstream O2 Oxygen Sensor Pair ACDelco 213-3240
  • 2006-2007 Cadillac STS V6 3.6L Upstream O2 Oxygen Sensor Pair ACDelco 213-3240

This part replaces:

  • ACDelco 213-3240
  • OE # 12596327
Only 2 left in stock
Part #: ACEEK00018

Ships Same Day for orders placed by 4 P.M. ET

AC DELCO
Brand #: 213-3240

How-to Video:

(11:08 min)