{"product_id":"bosch-16378-oxygen-sensor","title":"Bosch 16378 Oxygen Sensor - Downstream or Upstream","description":"\u003ch2\u003eReliable Oxygen Sensor for Cadillac, Pontiac, and Saturn Vehicles\u003c\/h2\u003e\u003cp\u003eThe Bosch Actual OE Oxygen Sensor 16378 is designed specifically for select Cadillac CTS, Pontiac G8, and Saturn Vue models. This narrow-band heated oxygen sensor ensures accurate emissions control and optimal engine performance by providing precise air-fuel mixture data to the vehicle’s engine management system.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eBrand: Bosch\u003c\/li\u003e\n\u003cli\u003eBrand Line: Actual OE Oxygen Sensor\u003c\/li\u003e\n\u003cli\u003ePart Number: 16378\u003c\/li\u003e\n\u003cli\u003eWiring Harness Length: 13.6 inches\u003c\/li\u003e\n\u003cli\u003eOverall Length: 16.9 inches\u003c\/li\u003e\n\u003cli\u003eTerminal Type and Quantity: 4-pin female terminals\u003c\/li\u003e\n\u003cli\u003eConnector Shape: Oblong, female connector\u003c\/li\u003e\n\u003cli\u003eMounting Type: Threaded with 18 mm thread diameter\u003c\/li\u003e\n\u003cli\u003eSensor Type: Narrow-band heated oxygen sensor\u003c\/li\u003e\n\u003cli\u003eHousing Material: Metal with steel finish\u003c\/li\u003e\n\u003cli\u003eHex Size: 22 mm for installation\u003c\/li\u003e\n\u003cli\u003eWiring Harness Included\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eAbout the Bosch Actual OE Oxygen Sensor Line\u003c\/h2\u003e\u003cp\u003eThe Actual OE Oxygen Sensor line from Bosch is engineered to meet original equipment specifications for precise fit and function. This product line focuses on delivering reliable sensor performance with standard replacement grade quality, ensuring compatibility and durability for specific vehicle applications such as the Cadillac CTS, Pontiac G8, and Saturn Vue. The 16378 sensor maintains factory-level emissions control and engine efficiency.\u003c\/p\u003e\u003ch2\u003eProduct Details and Specifications\u003c\/h2\u003e\u003cp\u003eThis Bosch oxygen sensor features a 4-wire heated design that allows for faster sensor warm-up and improved accuracy in measuring exhaust oxygen levels. The threaded mounting type with an 18 mm thread diameter and 22 mm hex size facilitates straightforward installation. The oblong female connector with four terminals ensures secure electrical connections. The sensor’s metal housing with a steel finish provides durability under high-temperature exhaust conditions. The included wiring harness measures 13.6 inches, with an overall length of 16.9 inches from sealing surface to connector end, designed for specific fitment in compatible vehicles.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Issues Addressed\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRestores accurate air-fuel ratio readings for engine control\u003c\/li\u003e\n\u003cli\u003eHelps resolve check engine light codes related to oxygen sensor failure\u003c\/li\u003e\n\u003cli\u003eImproves fuel efficiency by ensuring proper combustion\u003c\/li\u003e\n\u003cli\u003eReduces harmful emissions by maintaining correct sensor feedback\u003c\/li\u003e\n\u003cli\u003ePrevents rough idling and engine performance issues caused by faulty sensors\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eWhen installing the Bosch 16378 oxygen sensor, ensure the vehicle is cool to avoid burns. Use a 22 mm oxygen sensor socket for removal and installation. Verify the sensor’s wiring harness routing matches the original to prevent damage or disconnection. Thread the sensor carefully to avoid cross-threading and tighten to manufacturer torque specifications. The included wiring harness and connector are designed for a specific fit on Cadillac CTS, Pontiac G8, and Saturn Vue models, so confirm compatibility before installation.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eBosch oxygen sensors are manufactured to meet strict quality standards for durability and performance. The Actual OE Oxygen Sensor 16378 is a standard replacement grade part that undergoes rigorous testing to ensure reliable operation. While specific warranty details may vary, Bosch typically offers coverage against defects in materials and workmanship, providing confidence in the sensor’s long-term functionality.\u003c\/p\u003e","brand":"Bosch","offers":[{"title":"Default Title","offer_id":44520610005173,"sku":"BBHK-16378","price":76.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/BS_16378_Fro.jpg?v=1775059500","url":"https:\/\/www.partcatalog.com\/products\/bosch-16378-oxygen-sensor","provider":"PartCatalog","version":"1.0","type":"link"}