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Part #: 16511

Bosch 16511 Oxygen Sensor - Upstream

Actual OE Oxygen Sensor, Upstream
1 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
Actual OE Oxygen Sensor, Upstream
Fitment: Nissan, Sentra
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Overview of Bosch Actual OE Oxygen Sensor 16511

The Bosch Actual OE Oxygen Sensor 16511 is designed specifically for Nissan Sentra models, providing precise emission control and optimal engine performance. This narrow-band heated oxygen sensor ensures accurate air-fuel mixture readings for efficient combustion and reduced emissions.

  • Specific fit for Nissan Sentra vehicles
  • Heated narrow-band oxygen sensor for fast response
  • 16.3-inch wiring harness length with 4 wires and blade terminals
  • Threaded mounting type with 18 mm thread diameter and 22 mm hex size
  • Durable metal housing with steel finish and male square connector

Features and Specifications

The Bosch 16511 oxygen sensor features a 4-wire heated design that supports quick sensor warm-up and accurate readings. Its 16.3-inch wiring harness and 18.5-inch length from sealing surface to connector end provide ample reach for installation in Nissan Sentra exhaust systems. The sensor uses a threaded mounting type with an 18 mm thread diameter and a 22 mm hex size for secure attachment. The connector is male with a square shape, designed for a specific fit rather than universal application. Constructed with a metal housing and steel finish, this sensor is built to withstand harsh operating conditions.

About the Bosch Actual OE Oxygen Sensor Line

The Bosch Actual OE Oxygen Sensor product line focuses on delivering replacement sensors that meet original equipment specifications. These sensors are engineered to provide reliable performance and compatibility with specific vehicle models, such as the Nissan Sentra. The 16511 part number is part of this line, ensuring it matches the fit, form, and function of the original sensor installed by the manufacturer.

Common Applications and Problem Resolution

  • Restores accurate air-fuel ratio readings for improved fuel efficiency
  • Helps resolve rough idling and engine hesitation issues
  • Reduces emissions by ensuring proper catalytic converter function
  • Prevents check engine light triggers related to oxygen sensor faults
  • Supports smooth engine performance and drivability

Installation Notes and Tips

When installing the Bosch 16511 oxygen sensor on a Nissan Sentra, ensure the threaded sensor is securely tightened using a 22 mm hex socket. Verify the wiring harness length and connector type match the vehicle’s factory setup to avoid connection issues. Since this is a specific fit sensor, no modifications to the wiring or mounting are typically required. Handle the sensor carefully to avoid damage to the heated element and wiring.

Quality Assurance and Warranty

Bosch oxygen sensors are manufactured to meet strict quality standards, ensuring durability and reliable performance. The Actual OE Oxygen Sensor line is designed to meet or exceed OEM specifications. While specific warranty details are not provided here, Bosch generally offers coverage against defects in materials and workmanship for replacement parts like this oxygen sensor.

BrandBosch
Part Number16511
PositionActual OE Oxygen Sensor, Upstream
Wiring Harness Length16.3
Terminal TypeBlade
Universal Or Specific FitSpecific
Wire Quantity4
Grade TypeStandard replacement
Connector ShapeSquare
Terminal Quantity4
Connector GenderMale
Terminal GenderMale
Overall Length19.7
Mounting TypeThreaded
Automotive Color / FinishSteel
Automotive Item Weight (lbs)0.264555 lb
Heated (Oxygen Sensor)Yes
Hex Size (Oxygen Sensor)22 mm
Housing MaterialMetal
Length (Sealing Surface To End Of Connector)18.5 in
Mounting Bracket IncludedNo
Oxygen Sensor TypeNarrow-band heated
Sensor TypeNarrow-band
Thread Diameter (Oxygen Sensor)18 mm
Thread Size18
Wiring Harness IncludedYes

This part fits 1 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2003NissanSentra1.8LL4UpstreamTo 03/2003; without California Emission System; Actual 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:

226908U300

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