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2025-26 Buick Envista Encore GX Chevy Trax Trailblazer Oxygen Sensor OEM

$ 55.31
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2025-2026 Lower Downstream Oxygen Sensor for Buick Envista, Buick Encore GX, Chevrolet Trailblazer and Chevrolet Trax

This is a Genuine OEM GM downstream oxygen sensor for the 2025-2026 Buick Envista, Buick Encore GX, Chevrolet Trailblazer and Chevrolet Trax. It fits the lower downstream position on the 1.2L turbocharged engine.

Fitment Alert – Confirm These Details Before You Order

Check each line below against your vehicle before ordering.

Position Lower downstream position
Engine 1.2L Turbocharged engine only
Buick Encore GX 2025-2026; Preferred trim; 1.2L Turbo
Buick Envista 2025-2026; Avenir, Preferred and Sport Touring trims; 1.2L Turbo
Chevrolet Trailblazer 2025-2026; LS and LT trims; 1.2L Turbo
Chevrolet Trax 2025-2026; ACTIV, LS, LT and RS trims; 1.2L Turbo
Fuel Type Gasoline and flex fuel configurations

Quick Part Facts

  • Condition: New
  • Brand: Genuine GM OEM
  • Part Type: Downstream Oxygen Sensor
  • Position: Lower Downstream
  • Engine: 1.2L Turbocharged
  • Fuel Type: Gas and Flex Fuel
  • Years: 2025-2026
  • Fits: Buick Envista, Buick Encore GX, Chevrolet Trailblazer, Chevrolet Trax

Fitment Chart

Year Range Make Model Trim/Engine Notes/Options
2025-2026 Buick Encore GX Preferred; 1.2L L3 Turbo Lower downstream position; 1.2L turbocharged engine; Flex fuel
2025-2026 Buick Envista Avenir; 1.2L L3 Turbo Lower downstream position; 1.2L turbocharged engine
2025-2026 Buick Envista Preferred; 1.2L L3 Turbo Lower downstream position; 1.2L turbocharged engine; Gas and flex fuel
2025-2026 Buick Envista Sport Touring; 1.2L L3 Turbo Lower downstream position; 1.2L turbocharged engine; Gas and flex fuel
2025-2026 Chevrolet Trailblazer LS, LT; 1.2L L3 Turbo Lower downstream position; 1.2L turbocharged engine; Flex fuel
2025-2026 Chevrolet Trax ACTIV, LS, LT, RS; 1.2L L3 Turbo Lower downstream position; 1.2L turbocharged engine; Gas and flex fuel
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