HomeEmission Control > SensorsBosch 15963 Oxygen Sensor - Downstream or Downstream Left
Part #: 15963

Bosch 15963 Oxygen Sensor - Downstream or Downstream Left

Actual OE Oxygen Sensor, Downstream Left
⚙️ 6 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Actual OE Oxygen Sensor, Downstream Left
🚗Fitment: Nissan, Sentra and Altima
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Bosch Actual OE Oxygen Sensor 15963

The Bosch Actual OE Oxygen Sensor 15963 is designed specifically for Nissan Altima and Sentra 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.

  • Compatible with Nissan Altima and Sentra
  • Specific fit with threaded mounting type for secure installation
  • Heated narrow-band oxygen sensor for improved response time
  • Includes 8.7-inch wiring harness with 4 male blade terminals
  • Durable steel housing with 22 mm hex size for easy installation
  • Standard replacement grade for reliable emissions control
  • Wiring harness included with square male connector

Detailed Product Features and Specifications

This Bosch oxygen sensor features a 4-wire design with a heated element to provide faster sensor warm-up and more accurate readings under various operating conditions. The sensor’s metal housing and threaded mounting (18 mm thread diameter) ensure a secure and durable fit in the exhaust system. The wiring harness length measures 8.7 inches, with an overall length of 12.4 inches from sealing surface to connector end, allowing for proper routing and connection. The square-shaped male connector with four blade terminals matches the original equipment specifications for Nissan Altima and Sentra models, ensuring compatibility and ease of replacement.

About the Bosch Actual OE Oxygen Sensor Product Line

The Bosch Actual OE Oxygen Sensor line is engineered to meet original equipment standards, providing a direct replacement for factory-installed sensors. This product line focuses on delivering precise sensor performance and durability, maintaining the vehicle’s emissions system integrity. The 15963 sensor is part of this line, designed to match Nissan’s specific requirements for the Altima and Sentra, ensuring proper fit and function without modification.

Common Applications and Problem Resolution

  • Restores accurate air-fuel ratio readings for improved fuel efficiency
  • Resolves check engine light issues related to oxygen sensor faults
  • Helps reduce harmful emissions by maintaining proper combustion
  • Eliminates rough idling or engine hesitation caused by faulty sensors
  • Prevents failed emissions tests due to sensor malfunction

Installation Notes and Tips

When installing the Bosch 15963 oxygen sensor, ensure the engine and exhaust system are cool to avoid burns. Use a 22 mm oxygen sensor socket for removal and installation. Verify the wiring harness routing matches the original to prevent damage or disconnection. No mounting bracket is included, so use the existing mounting point on the vehicle. Confirm the connector securely mates with the vehicle’s wiring harness to maintain proper electrical connection.

Quality Assurance and Warranty

Bosch oxygen sensors are manufactured to meet strict quality standards, ensuring reliable performance and durability. This sensor is a standard replacement grade part designed to meet or exceed OEM specifications. While specific warranty details may vary, Bosch typically offers coverage against defects in materials and workmanship to provide confidence in the product’s longevity and function.

This part fits 6 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2002NissanSentra1.8LL4Downstream LeftSuper Ultra Low Emission Vehicle (SULEV); Actual OE Oxygen Sensor
2001NissanSentra1.8LL4Downstream LeftSuper Ultra Low Emission Vehicle (SULEV); Actual OE Oxygen Sensor
2001NissanSentra2.0LL4DownstreamActual OE Oxygen Sensor
2000NissanAltima2.4LL4DownstreamActual OE Oxygen Sensor
2000NissanSentra1.8LL4Downstream LeftSuper Ultra Low Emission Vehicle (SULEV); Actual OE Oxygen Sensor
2000NissanSentra2.0LL4DownstreamActual OE Oxygen Sensor

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.