Bosch 13276 Oxygen Sensor - Upstream

Bosch Actual OE Oxygen Sensor 13276

Bosch 13276 is an Actual OE Oxygen Sensor built for precise air-fuel-ratio feedback to the ECU. It supports stable combustion control and emissions management on select Nissan applications, including upstream service on 1984-1989 Nissan 200SX, Maxima, and 300ZX models.

Key Features

• Specific-fit narrow-band heated oxygen sensor for direct application matching
• Upstream sensor position for the listed Nissan vehicles
• 3-wire design with included wiring harness and oblong male connector
• Threaded mounting with 18 mm thread diameter and 22 mm hex size
• Metal housing and high-temperature-resistant construction for demanding exhaust conditions
• Bosch Actual OE Oxygen Sensor line draws on OE development experience for accurate signal control

Product Details

This Bosch oxygen sensor uses a switching-type narrow-band design to measure exhaust oxygen content and send feedback to the engine control unit. The result is more precise closed-loop fuel control during warm-up and normal driving. Bosch 13276 is a standard replacement for select Nissan 200SX, Maxima, and 300ZX upstream locations, with fitment listed for 1984-1985 Nissan 200SX, 1986 Nissan 200SX to 12/1985, 1985 and 1986 Nissan Maxima to 12/1985, 1987-1988 Nissan Maxima, and 1984-1985 and 1987-1989 Nissan 300ZX. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What It Helps Address

• Rich or lean fuel mixture readings caused by a worn upstream sensor
• Check engine light concerns related to oxygen sensor signal performance
• Slow closed-loop response during warm-up
• Unstable idle or drivability issues tied to inaccurate exhaust feedback
• Elevated emissions from degraded air-fuel control

Installation Notes

Install Bosch 13276 in the threaded upstream location specified for the vehicle. Confirm connector shape, wire count, and harness length before installation, and verify the sensor thread size is 18 mm with a 22 mm hex. Use proper oxygen sensor service tools and inspect the exhaust bung threads for damage or contamination before tightening.

Quality Assurance

Bosch has more than five decades of OE oxygen sensor development behind this Actual OE line. The sensor uses advanced ceramic elements, controlled heater operation, and heat-resistant materials to maintain consistent signal performance under thermal and vibration load.