Bosch 13420 Oxygen Sensor - Downstream, Upstream or Upstream Right

Bosch Actual OE Oxygen Sensor for Nissan

Bosch 13420 is an Actual OE Oxygen Sensor built for precise air-fuel-ratio feedback to the ECU. It supports stable combustion control and emissions management for Nissan Frontier, Xterra, Sentra, 200SX, and 240SX applications with confirmed upstream and downstream fitments.

The Bosch Actual OE Oxygen Sensor line draws on Bosch’s long OE development history, including narrow-band sensor designs that improve light-off response, lambda accuracy, and closed-loop operation. Bosch 13420 uses a heated narrow-band design with a threaded metal housing for consistent signal delivery under high heat and vibration.

• Heated narrow-band oxygen sensor for accurate exhaust feedback
• Specific-fit replacement for confirmed Nissan applications
• Blade terminal connection with included wiring harness
• Threaded mounting design with 18 mm thread size
• Metal housing built for high-temperature exhaust environments
• Oblong male connector, 3-wire configuration

Detailed Product Information

Bosch 13420 is an OE-style oxygen sensor for Nissan vehicles that require a direct-fit upstream or downstream replacement. It is listed for 1995-2002 Nissan Frontier, Xterra, Sentra, 200SX, and 240SX applications, including upstream right coverage on select Frontier and Xterra models. This part number is also referenced as 13420 for catalog and service lookup.

As part of Bosch’s Actual OE Oxygen Sensor line, this sensor is engineered to provide reliable switching-type signal output for the engine control unit. That helps the vehicle maintain proper fuel control during warm-up, cruise, and load changes. This part cross-references 226900M211 and 226903S501 for the same application.

What This Oxygen Sensor Helps Address

• Check engine light related to oxygen sensor performance
• Rough idle caused by inaccurate air-fuel feedback
• Reduced fuel control from a slow or aging upstream sensor
• Emissions test failures tied to sensor response issues
• Closed-loop drivability problems on Nissan Frontier, Xterra, Sentra, 200SX, and 240SX models

Installation Notes and Tips

Verify the connector shape, wire count, thread diameter, and sensor position before installation. Bosch 13420 uses a 22 mm hex size and 18 mm thread diameter, with a threaded mounting style and included wiring harness. Confirm the exact vehicle build details and emission system notes shown in the fitment data, especially for California emissions and Japan-built or Mexico-built Nissan applications.

• Fits 1999-2002 Nissan Frontier, Upstream Right
• Fits 1998-2000 Nissan Frontier, Upstream
• Fits 2000-2002 Nissan Xterra, Upstream Right
• Fits 2000 Nissan Xterra, Upstream
• Fits 1997-1999 Nissan Sentra, Upstream
• Fits 1997-1998 Nissan 200SX, Upstream
• Fits 1996-1998 Nissan 240SX, Upstream
• Fits 1995-1996 Nissan 200SX, Upstream
• Fits 1995-1996 Nissan Sentra, Upstream
• Fits 1995 Nissan Sentra, Downstream

Quality Assurance

Bosch supplies oxygen sensors with OE development experience and application-specific engineering for aftermarket replacement. Bosch 13420 is built as a standard replacement sensor for confirmed Nissan fitments and follows Bosch’s OE-focused design approach for signal accuracy and durability.