4x O2 Oxygen Sensors for Cadillac SRX Equinox Lacrosse Impala Terrain Outlook
4x O2 Oxygen Sensors for Cadillac SRX Equinox Lacrosse Impala Terrain Outlook is a set of direct-fit replacement sensors priced at $53.50. Includes upstream and downstream units. Ideal for DIY mechanics maintaining Cadillac and GM vehicles with precise engine performance and emissions control.
● In stock
Buy at Lab Work Auto →Price and availability may change. Click to see current details on Lab Work Auto.
Key features
- Direct fit for Cadillac SRX, Equinox, Lacrosse, Impala, Terrain, Outlook
- Includes 4 sensors: upstream and downstream
- Interchange for OEM 12584050, 12607333, 12612430, 250-24649
- Plug-and-play installation, no splicing required
- Improves fuel efficiency and reduces emissions
- Testable with 10-megaohm digital voltmeter
- Warranty applies to defective units verified by voltage test
Pros
- +Affordable at $53.50 for a 4-sensor set
- +Exact fit for multiple GM and Cadillac models
- +No wiring modifications needed
- +Supports OBDII diagnostics and error code clearing
- +Helps restore engine performance and fuel economy
Cons
- −No brand name or technical support hotline
- −Warranty requires voltage testing proof
- −20% restocking fee for incorrect fitment
- −Not returnable if installed or contaminated
About 4x O2 Oxygen Sensors for Cadillac SRX Equinox Lacrosse Impala Terrain Outlook
What is 4x O2 Oxygen Sensors for Cadillac SRX Equinox Lacrosse Impala Terrain Outlook?
This 4-pack of O2 oxygen sensors is engineered as a direct-fit replacement for select Cadillac and GM vehicles including the SRX, Equinox, Lacrosse, Impala, Terrain, and Outlook. Designed to monitor oxygen levels in the exhaust system, these sensors help optimize fuel efficiency, reduce emissions, and maintain engine performance. Compatible with OEM part numbers 12584050, 12607333, 12612430, and 250-24649, they include both upstream and downstream sensors for complete system coverage. Sold by Lab Work Auto, this set delivers reliable functionality at a competitive $53.50 price point.
Key features
- Direct Fit — Matches OEM specifications for Cadillac and GM models including SRX, Equinox, Lacrosse, Impala, Terrain, and Outlook.
- Complete Set — Includes 4 oxygen sensors: both upstream and downstream units for full exhaust system coverage.
- OEM Interchange — Compatible with part numbers 12584050, 12607333, 12612430, and 250-24649 for easy replacement.
- Performance Monitoring — Helps regulate air-fuel mixture, improving fuel economy and lowering emissions.
- DIY-Friendly — Designed for straightforward installation with standard OBDII diagnostics support.
- Tested Reliability — Functionality can be verified using a 10-megaohm digital voltmeter for post-installation checks.
- Warranty Covered — Defective units verified by voltage test are eligible for manufacturer warranty claims.
Who is 4x O2 Oxygen Sensors for Cadillac SRX Equinox Lacrosse Impala Terrain Outlook for?
This sensor set is ideal for DIY auto enthusiasts and home mechanics maintaining Cadillac or GM vehicles from the mid-2000s through early 2010s. It suits users needing a cost-effective, reliable solution to replace failing O2 sensors without visiting a dealership. Those experiencing check engine lights related to oxygen sensor codes (e.g., P0135, P0141) will benefit from this direct-fit upgrade. It’s also suitable for preventive maintenance during high-mileage tune-ups.
How does 4x O2 Oxygen Sensors for Cadillac SRX Equinox Lacrosse Impala Terrain Outlook compare?
Compared to dealership-sourced OEM sensors, this set offers identical fitment at a fraction of the cost. Unlike universal-fit sensors requiring splicing, these are plug-and-play, reducing installation complexity. While not branded like Denso or Bosch, they meet functional standards for voltage response and durability. They outperform generic single-sensor kits by including all four required sensors, making them a better value for full replacements. However, they lack extended warranties or technical support beyond basic voltage testing validation.
Best use cases
- →Replacing failed O2 sensors in high-mileage Cadillacs
- →Fixing check engine light codes like P0135 or P0141
- →Preventive maintenance during exhaust system service
- →DIY tune-up for improved fuel economy
- →Full sensor set replacement after catalytic converter work
Is 4x O2 Oxygen Sensors for Cadillac SRX Equinox Lacrosse Impala Terrain Outlook right for you?
This O2 sensor set is best for DIY mechanics with intermediate skills who own compatible Cadillac or GM vehicles. Verify your vehicle's year and engine type match the listed fitment. If you're troubleshooting check engine lights or poor fuel economy, these sensors offer a cost-effective fix. For those uncomfortable with electrical testing, consider professional installation. Alternatives include branded sensors from Denso or Bosch, which cost more but offer longer warranties.
How it compares: Compared to universal O2 sensors, this set offers plug-and-play compatibility without splicing. It's more affordable than OEM parts from dealerships while matching fitment. Lacks the extended support of premium brands but delivers solid functionality for budget-conscious repairs.
More from Lab Work Auto
#63P-81950-00-00 TRIM RELAY For YAMAHA OUTBOARD F150 & 250 Part
$17.80
(4 pcs) For Ford F-150 Bed Interface Plates Standard Tie Down FL3Z9928408AB
$16.82
-6 An X 5/16-24 O Ring Hydroboost Spittier/Return Port Fitting Car Accessories
$8.20
-6AN AN6 Fuel Adapter Fitting to 3/8 Quick Connect LS W/ Clip Female Black GM
$7.91Frequently Asked Questions
What vehicles are these O2 sensors compatible with?
▾
These sensors fit select Cadillac and GM models including SRX, Equinox, Lacrosse, Impala, Terrain, and Outlook. Confirm compatibility using OEM part numbers 12584050, 12607333, 12612430, or 250-24649 for your specific year and engine.
Does this set include both upstream and downstream sensors?
▾
Yes, the package includes 4 oxygen sensors—both upstream (pre-catalytic) and downstream (post-catalytic) units—providing complete coverage for your vehicle's exhaust system.
How do I test the O2 sensor after installation?
▾
Use a 10-megaohm digital voltmeter. Connect the red probe to the sensor's signal wire and the black probe to ground. Monitor voltage changes between 0.1V and 0.9V as the engine runs to verify responsiveness.
Is there a warranty on these oxygen sensors?
▾
Yes, defective sensors are covered if tested with a voltmeter and found non-functional. Installed, altered, or contaminated units are not eligible for return or warranty claims.
Can I return the sensors if I bought the wrong ones?
▾
A 20% restocking fee applies if you return the sensors due to incorrect fitment. Items must be uninstalled, unaltered, and uncontaminated to qualify for return.
How much does 4x O2 Oxygen Sensors for Cadillac SRX Equinox Lacrosse Impala Terrain Outlook cost?
▾
4x O2 Oxygen Sensors for Cadillac SRX Equinox Lacrosse Impala Terrain Outlook is $53.50 at Lab Work Auto. Prices may change — click through to Lab Work Auto for the latest.
Is 4x O2 Oxygen Sensors for Cadillac SRX Equinox Lacrosse Impala Terrain Outlook in stock at Lab Work Auto?
▾
Yes, 4x O2 Oxygen Sensors for Cadillac SRX Equinox Lacrosse Impala Terrain Outlook is currently in stock at Lab Work Auto.
Specifications
- SKU
- F7-7279