Genuine Parts. Lowest Prices. Compatibility Guaranteed.

Bulk Order
Search Bar 3
Air Intake & Fuel Delivery
Brakes
Cooling Systems
Engine Components
Gaskets
Lighting
Suspension & Steering
Wheels, Tires & Parts
Interior Accessories
Exterior Accessories
Home Categories Emission Systems Emission Modules & Control Units GM 12665161

Heated Oxygen Sensor - GM (12665161)

Heated Oxygen Sensor - GM (12665161)

Heated Oxygen Sensor - GM (12665161)

  • MSRP: $70.20
  • Discount: $30.19 (43% off)
  • Sale Price: $40.01
OR
Ships To
Manufacturer Warranty Minimum of 12 Months
Guaranteed Fitment Always the correct parts
Shop with Confidence Your information is safe
In-House Experts We know our products

Details

  • Brand:

    Buick, GMC, Cadillac, Hummer, Saturn, Oldsmobile, Pontiac, Chevrolet Parts

  • SKU:

    12665161

  • Positions: Left Lower, Left Rear, Right Lower, Right Rear
  • Other Names:

    Oxygen Sensor

  • Description:
    ACDelco Heated Oxygen Sensor (Part Number: 12665161) is a post-catalyst heated oxygen sensor (Bank 1) designed to detect exhaust oxygen content to optimize emissions control.
    • Also known as: Oxygen Sensor
    • Primary function: Measures oxygen levels in exhaust downstream of the catalytic converter for emission system feedback
    • Benefits: Restores closed-loop emissions control and helps maintain compliance and engine efficiency
    • Service note: Some applications require programming or special setup; follow GM Service Information for installation
    Emission Control Parts Underhood 21

    World Parts Direct is a U.S. distributor offering competitive pricing, ACDelco-quality components, a compatibility guarantee, and expert support for emission-system repairs.
  • Condition: New
Warning WARNING: California Proposition 65

Vehicle Fitment

No application/vehicle fitment information available for this product
Vehicle Fitment
Year Make Model Body & Trim Engine & Transmission
( more fitments)
No fitment data available

Next Day Parts

Welcome to nextdayparts.com — home of the Low-Price and Right-Part Guarantee. We offer genuine OEM parts for General Motors and MOPAR vehicles, shipped directly to your door. Enjoy unmatched convenience, incredible savings, and reliable, human support. 

Every part we sell is brand new, in the manufacturer’s original packaging, and backed by the full factory warranty. These are the exact same parts installed at the factory — no substitutes, no guesswork.

Whether you're ordering for routine maintenance, collision repair, or a full restoration, our expert team is here to help. We offer a free compatibility guarantee when a VIN is provided, ensuring you get the right part the first time.

Have questions? Our parts professionals are ready to assist by phone, text, or email. We ship to more than 220 countries worldwide and are proud to serve both everyday drivers and automotive professionals.

GM

Shop authentic OEM MOPAR & GM products. Keep your vehicle running at its best by using only authentic OEM parts.