QIYBONE 4-Piece O2 Oxygen Sensor Kit for GM 3.6L V6 (2012–2020) – Upstream & Downstream, OEM Fit

QIYBONE 4-piece oxygen sensor kit replaces upstream and downstream O2 sensors (234-4565, 234-4566 and related OE numbers) for 3.6L Chevy, GMC, Buick and Cadillac models from 2012–2020.

These four O2 sensors are precision-engineered to match OEM fit and function for a range of V6 3.6L engines, helping the engine control module monitor air/fuel ratios and maintain efficient combustion. Constructed with stainless-steel housings and high-temperature materials, the sensors use proven sensing elements and sealed connectors for durability in exhaust-system conditions.

Which vehicles and engine years does this sensor kit support?

This kit is compatible with many GM 3.6L V6 models across Chevrolet, GMC, Buick and Cadillac lines from 2012 through 2020. Confirm compatibility by matching your vehicle model, year and the original sensor location (upstream vs downstream) before ordering.

• Chevy Impala 3.6L (2014–2020), Traverse 3.6L (2012–2017), Colorado 3.6L (2015–2016), Caprice 3.6L (2012–2017)
• GMC Acadia 3.6L (2012–2016), Canyon 3.6L (2015–2016)
• Buick Enclave 3.6L (2012–2017), Cadillac XTS 3.6L (2013–2019)
• Matches OE/reference numbers like 234-4565, 234-4566, 250-24773 and others listed

How do these QIYBONE oxygen sensors affect fuel economy and engine performance?

O2 sensors measure exhaust oxygen levels and relay that data to the vehicle’s engine control unit so fuel delivery can be adjusted. Accurate, responsive sensors help the ECU keep the air/fuel ratio near optimum, which can improve fuel economy and throttle response when sensors are working correctly.

• Fast response sensing helps reduce rich or lean running conditions
• Better air/fuel control can lower fuel consumption over time
• Stable readings support smoother idling and consistent acceleration
• Durable materials sustain performance in high-temperature exhaust environments

What are the build quality and installation details?

QIYBONE sensors are manufactured with stainless-steel shells and high-temp resistant internals for corrosion and heat protection. They are designed to OEM dimensions and use standard connectors for a plug-and-play replacement in most cases.

• Stainless-steel housing and double-sealing for long life
• High-temperature materials for sensing element longevity
• Plug-and-play electrical connector—compare your original plug to the product image
• Sold as a set of four to cover upstream and downstream positions

Which OE/reference numbers does this kit replace and why match them?

The kit lists multiple OE and reference numbers so you can cross-check against your vehicle’s original part number. Matching the reference number ensures correct thread, connector type and sensing characteristics for your exhaust layout.

• Common cross-references: 234-4565, 234-4566, 250-24773, 350-34003
• Also replaces numbers like 234-4259, 234-4818, 234-4840 and others shown
• Verify with the original sensor on your vehicle before purchase

Who is this for: This QIYBONE 4PCS oxygen sensor kit is for owners and mechanics who need a complete upstream and downstream sensor replacement for GM 3.6L vehicles built between 2012 and 2020. Choose this set if you want OEM-style fitment, stainless-steel construction and a full-vehicle replacement to restore accurate air/fuel monitoring and avoid diagnostic trouble codes related to oxygen sensors.