BBabe Stainless Steel Oxygen Sensor Set with Direct Pre-Coated Threads for Engine Bay Installation

Oxygen sensor pair engineered for direct replacement on select Chevrolet and Buick models. The upstream and downstream units monitor exhaust oxygen content so the engine control module can adjust the air-fuel mixture for efficient combustion. Each sensor body is constructed from stainless steel that resists corrosion and helps maintain signal integrity over time. Pre-coated threads eliminate the need for separate anti-seize compound and speed up installation. A protective cover keeps the thread coating intact during shipping.

The set includes one upstream sensor and one downstream sensor, both with a 4-wire configuration for consistent electrical connection. Compact dimensions of approximately 7.7 by 4.1 by 1.7 inches and a total weight of about 0.55 pounds simplify handling and placement. Designed for engine bay mounting, these sensors support fuel trim accuracy and emission performance. Before ordering, confirm the vehicle year, make, model, and engine displacement match the compatible applications list, and review fitment details and photos to ensure proper match. Professional installation is recommended to verify sensor positioning and electrical connections.

Product Details

• Package Size: 18 10 4
• Package Includes: 2 x Oxygen Sensor 234-4528: Downstream x1 234-4529: Upstream x1
• Pieces per Package: 1