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Oxygen Sensors
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OEM (Genuine) 2008 Cadillac DTS Front Oxygen Sensor
PartNumber: 12597990
Product Specifications- Notes: Dts; Front
- Location: Driver Side; Passenger Side
- Other Names: Front Oxygen Sensor, Oxygen Sensor
- Item Dimensions: 8.3 x 3.3 x 3.4 inches
- Item Weight: 0.60 Pounds
- Fitment Type: Direct Replacement
- Part Description: 2008 Cadillac DTS Front Oxygen Sensor
Vehicle Fitment- 2008 Cadillac DTS | Base, Livery, Luxury, Platinum, Premium | 8 Cyl 4.6 L GAS
$55.70 MSRP:$105.12You Save: $49.42 (48%)
Denso® Oxygen Sensor for 2008 Cadillac DTS
PartNumber: 234-4337Product Specifications- Notes: DENSO is the OE Manufacturer / Oxygen Sensor
- Connector Gender: Female
- Installation Type: Screw
- O2 Sensor Configuration: Direct Fit
- Position: Upstream
- Sensor Type: Heated
- Thread Diameter: 0.71" (18 mm)
- UPC: 042511113169
- Wire Harness Length: 16.14" (410 mm)
- Wires Quantity: 4 Wire Leads
- Part Description: 2008 Cadillac DTS Oxygen Sensor
Vehicle Fitment- 2008 Cadillac DTS | All Trims | 8 Cyl 4.6L
$45.53
Delphi® Oxygen Sensor for 2008 Cadillac DTS
PartNumber: ES20352Product Specifications- Connector Shape: Square
- Position: Front
- Terminal Quantity: 4
- Terminal Type: Blade
- UPC: 689604201510
- Wire Harness Length: 17.2" (430 mm)
- Wrench Size: 0.88" (22 mm)
- Part Description: 2008 Cadillac DTS Oxygen Sensor
Vehicle Fitment- 2008 Cadillac DTS | Base | 8 Cyl 4.6L
- 2008 Cadillac DTS | Luxury | 8 Cyl 4.6L
- 2008 Cadillac DTS | Platinum | 8 Cyl 4.6L
$68.10
Spectra Premium® Oxygen Sensor for 2008 Cadillac DTS
PartNumber: OS5516Product Specifications- Notes: Bank 1 Sensor 1;Bank 2 Sensor 1
- Connector Gender: Male
- Connector Shape: Square
- Installation Type: Screw
- Overall Length: 18 7/8"
- Position: Upstream
- Sensor Type: Heated - Zirconia
- Terminal Quantity: 4
- Thread: M18 X 1.5 mm
- UPC: 671607539011
- Wrench Size: 0.88" (22 mm)
- Part Description: 2008 Cadillac DTS Oxygen Sensor
Vehicle Fitment- 2008 Cadillac DTS | All Trims | 8 Cyl 4.6L
$32.58
Walker Products® Premium Oxygen Sensor for 2008 Cadillac DTS
PartNumber: 250-24704Product Specifications- Connector Gender: Female
- Overall Length: 17.64"(448.056 mm)
- Position: Downstream Passenger Side
- Sensor Type: Heated
- Thread Diameter: 0.71"(18.0 mm)
- UPC: 724620014246
- Wire Gauge Measurement: 20 Gauge
- Wire Harness Length: 14.09"(357.886 mm)
- Wires Quantity: 4 Wire Leads
- Part Description: 2008 Cadillac DTS Premium Oxygen Sensor
Vehicle Fitment- 2008 Cadillac DTS | All Trims | 8 Cyl 4.6L
$36.51
OEM (Genuine) 2008 Cadillac DTS Rear Oxygen Sensor
PartNumber: 12597989
Product Specifications- Notes: Dts; Rear
- Other Names: Oxygen Sensor, Rear Oxygen Sensor
- Item Dimensions: 8.4 x 3.0 x 3.1 inches
- Item Weight: 0.60 Pounds
- Fitment Type: Direct Replacement
- Part Description: 2008 Cadillac DTS Rear Oxygen Sensor
Vehicle Fitment- 2008 Cadillac DTS | Base, Livery, Luxury, Platinum, Premium | 8 Cyl 4.6 L GAS
$81.60 MSRP:$153.98You Save: $72.38 (48%)
Denso® Oxygen Sensor for 2008 Cadillac DTS
PartNumber: 234-4339Product Specifications- Notes: DENSO is the OE Manufacturer / Oxygen Sensor
- Connector Gender: Female
- Installation Type: Screw
- O2 Sensor Configuration: Direct Fit
- Position: Upstream Driver Side
- Sensor Type: Heated
- Thread Diameter: 0.71" (18 mm)
- UPC: 042511113183
- Wire Harness Length: 15.75" (400.1 mm)
- Wires Quantity: 4 Wire Leads
- Part Description: 2008 Cadillac DTS Oxygen Sensor
Vehicle Fitment- 2008 Cadillac DTS | All Trims | 8 Cyl 4.6L
$34.97
Delphi® Oxygen Sensor for 2008 Cadillac DTS
PartNumber: ES20000Product Specifications- Notes: 22in Length
- Connector Shape: Square
- Position: Rear
- Sensor Type: Heated
- Terminal Quantity: 4
- Terminal Type: Blade
- Thread: 18 x 1.5 mm
- UPC: 689604148013
- Wire Harness Length: 15" (375 mm)
- Wrench Size: 0.88" (22 mm)
- Part Description: 2008 Cadillac DTS Oxygen Sensor
Vehicle Fitment- 2008 Cadillac DTS | Base | 8 Cyl 4.6L
- 2008 Cadillac DTS | Luxury | 8 Cyl 4.6L
- 2008 Cadillac DTS | Platinum | 8 Cyl 4.6L
$41.90Walker Products® Premium Oxygen Sensor for 2008 Cadillac DTS
PartNumber: 250-24703Product Specifications- Connector Gender: Male
- Overall Length: 18.03"(457.962 mm)
- Position: Upstream Passenger Side
- Sensor Type: Heated
- Thread Diameter: 0.71"(18.0 mm)
- UPC: 724620014239
- Wire Gauge Measurement: 20 Gauge
- Wire Harness Length: 14.49"(368.046 mm)
- Wires Quantity: 4 Wire Leads
- Part Description: 2008 Cadillac DTS Premium Oxygen Sensor
Vehicle Fitment- 2008 Cadillac DTS | All Trims | 8 Cyl 4.6L
$41.82
Walker Products® Oxygen Sensor for 2008 Cadillac DTS
PartNumber: 350-34483Product Specifications- Notes: Downstream; Front
- Connector Gender: Male
- Connector Shape: Radiused Polygon
- Installation Type: Threaded
- Overall Length: 18.03"
- Position: Upstream Passenger Side
- Sensor Type: Heated
- Thread Diameter: 18.0 mm
- UPC: 724620092978
- Wire Gauge Measurement: 20 Gauge
- Wire Harness Length: 14.49"
- Wires Quantity: 4 Wire Leads
- Part Description: 2008 Cadillac DTS Oxygen Sensor
Vehicle Fitment- 2008 Cadillac DTS | All Trims | 8 Cyl 4.6L
$36.16
Walker Products® Oxygen Sensor for 2008 Cadillac DTS
PartNumber: 350-34484Product Specifications- Notes: Upstream; Front;Upstream; Rear
- Connector Gender: Female
- Connector Shape: Radiused Polygon
- Installation Type: Threaded
- Overall Length: 17.64"
- Position: Downstream Passenger Side
- Sensor Type: Heated
- Thread Diameter: 18.0 mm
- UPC: 724620092985
- Wire Gauge Measurement: 20 Gauge
- Wire Harness Length: 14.09"
- Wires Quantity: 4 Wire Leads
- Part Description: 2008 Cadillac DTS Oxygen Sensor
Vehicle Fitment- 2008 Cadillac DTS | All Trims | 8 Cyl 4.6L
$32.85
NTK® OE Type Oxygen Sensor for 2008 Cadillac DTS
PartNumber: 21558Product Specifications- Notes: B1S1; OE Equivalent Design;B2S1; OE Equivalent Design
- Mounting Type: Threaded
- Sensor Type: Heated
- Thread Diameter: 18.000
- Universal Or Specific Fit: Specific
- UPC: 087295215586
- Wire Quantity: 4
- Wiring Harness Length: 16.5000
- Part Description: 2008 Cadillac DTS OE Type Oxygen Sensor
Vehicle Fitment- 2008 Cadillac DTS | All Trims | 8 Cyl 4.6L
$40.57
FAQ for Oxygen Sensor Repair
Q: What should be done if contaminated?
A:
If contaminated, the portion of the sensor exposed to the exhaust stream will have a white powdery coating. Silicon contamination causes a high but false HO2S signal voltage (rich exhaust indication). The control module will then reduce the amount of fuel delivered to the engine, causing a severe driveability problem. So you will need to eliminate the source of contamination before replacing the oxygen sensor.
By Bob
GM Specialist
02/11/2022Q: How to remove the Heated Oxygen Sensor-Bank 2 Sensor 1?
A:
You will need to remove the air deflector and the connector position assurance (CPA) retainer, then disconnect the engine harness electrical connector from the heated oxygen sensor (HO2S), remove the HO2S clip from the engine bracket, then remove the HO2S.
By Bob
GM Specialist
02/11/2022Q: What's the recommended torque for the HO2S?
A:
The recommended torque is 41 N.m (30 lb-ft).
By Bob
GM Specialist
02/11/2022Q: What should be done when replacing the HO2S?
A:
You will need to ensure that code is clear with a scan tool, regardless of whether or not a DTC is set, and HO2S heater resistance learns reset with a scan tool, where available. You should perform the above to reset the HO2S resistance learned the value and avoid possible HO2S failure.
By Bob
GM Specialist
02/11/2022Q: How to remove the Heated Oxygen Sensor-Bank 1 Sensor 2?
A:
You will need to remove the oxygen sensor wiring harness heat shield, disconnect the engine harness electrical connector from the heated oxygen sensor (HO2S), then remove the HO2S.
By Bob
GM Specialist
02/11/2022Q: Why there is a contamination of the oxygen sensor?
A:
Contamination of the oxygen sensor can result from the use of an inappropriate RTV sealant (not oxygen sensor safe) or excessive engine coolant or oil consumption.
By Bob
GM Specialist
02/11/2022Q: How to install the Heated Oxygen Sensor-Bank 1 Sensor 2?
A:
You may need to coat the threads with anti-seize compound, GM P/N 12377953 or equivalent if reusing the old HO2S, then install the HO2S and tighten the sensor to 41 N.m (30 lb-ft), then connect the engine harness electrical connector to the HO2S, finally install the oxygen sensor wiring harness heat shield.
By Bob
GM Specialist
02/11/2022Q: How to remove the Heated Oxygen Sensor-Bank 1 Sensor 1?
A:
You will need to remove the fuel injector sight shield, remove the connector position assurance (CPA) retainer, disconnect the engine harness electrical connector from the heated oxygen sensor (HO2S), then remove the HO2S clip from the secondary air injection (AIR) check valve hose bracket, raise and support the vehicle, support the rear of the frame with a tall screw type jack, remove the 4 rearward frame to body bolts (left side shown, right side similar), lower the screw type jack approximately 4 cm (1.5 in) but not more than 76 mm (3 inches), allowing the rear of the frame to lower then remove the HO2S.
By Bob
GM Specialist
02/11/2022Q: How to check for contamination?
A:
You can remove the HO2S and visually inspect the portion of the sensor exposed to the exhaust stream to check for contamination.
By Bob
GM Specialist
02/11/2022See more FAQs (4)