Bosch® 15898 - Premium Narrow-band Oxygen Sensor

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Premium Narrow-band Oxygen Sensor (15898) by Bosch®. Position: Upstream. A worn-out oxygen sensor can cause engine performance problems and shorten the life of the catalytic converter. Tune-up your vehicle with an Oxygen Sensor from Bosch that is equally efficient in improving fuel efficiency and reducing harmful exhaust emissions.


Position: Upstream
Sensor Type: Heated
Connector Gender: Male
Wires Quantity: 4 Wire Leads
Installation Type: Threaded
Wrench Size: 0.88" (22 mm)
Wire Harness Length: 17.72" (450.09 mm)
Overall Length: 16.54" (420 mm)
Thread Diameter: 0.71" (18 mm)
Housing Material: Metal


  • OE Identical Connector
  • Compact Design
  • Improved Engine Performance
  • Increased Fuel Efficiency
  • Reduced Harmful Emissions

An oxygen sensor detects the amount of oxygen in vehicle's exhaust gases and sends a signal to the engine computer. This signal is used by the engine ECU to fine-tune the air/fuel mixture to the optimal level to ensure maximum catalyst efficiency and a long service life. A worn-out oxygen sensor can cause serious problems like excessive fuel consumption and elevated exhaust emissions as well as shorten the life of a catalytic converter and affect engine performance. Bosch oxygen sensors are the number one choice for many car makers worldwide. Each oxygen sensor by Bosch is subjected to a 1,000 degree Celsius functional test and a leak test to ensure environmental and functional robustness. Bosch oxygen sensors feature a revolutionary Bosch patented universal connection system that is fully submersible in water and protects against contamination as well as withstands extreme temperatures and engine vibration.

Bosch®, a premier global supplier of services and technology, is a privately held company headquartered in Germany. Its operations have been divided into four main business sectors that include automotive technology, industrial technology, energy and building technology, and consumer goods. Bosch products and services are designed to fascinate and improve the quality of life by offering innovative and beneficial solutions. The company offers technology worldwide that is “Invented for Life.”

Part Number:

Vehicle Fitment

CTS 2006
Escalade 2007
Astro 2003-2005
Avalanche 2007
Cavalier 2002-2005
Cobalt 2005-2007
Malibu 2004-2005
Silverado 1500 2006-2007
Suburban 2007
Tahoe 2006-2007
Trailblazer 2002-2003
Envoy 2002-2003
Safari 2003-2005
Sierra 1500 2006-2007
Yukon 2006-2007
Yukon Denali 2007
H2 2007
Ascender 2003
Alero 2002-2004
Bravada 2002-2003
Grand Am 2002-2005
Sunfire 2002-2005
Ion 2003-2007
L-Series 2002-2004
Vue 2002-2005


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Bosch® 15898 - Premium Narrow-band Oxygen Sensor
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Bosch® 15898 - Premium Oxygen Sensor
I replaced both my O2 sensors as 1 was bad & the Bosch sensors fit perfectly & has brought everything back to normal operating conditions.
Posted by Customer / June 03, 20212006 Chevy Silverado 1500

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