HomeEmission Control > SensorsBosch 18034 Oxygen Sensor - Downstream
Part #: 18034

Bosch 18034 Oxygen Sensor - Downstream

Bosch Engineered Oxygen Sensor, Downstream
10 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Bosch Engineered Oxygen Sensor, Downstream
Fitment: Chevrolet, Pontiac, and Suzuki, Aveo, Aveo5, G3, G3 Wave, and Swift+
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Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Bosch Engineered Oxygen Sensor 18034

The Bosch Engineered Oxygen Sensor 18034 is designed for precise emission control in select Chevrolet, Pontiac, and Suzuki vehicles. This narrow-band heated oxygen sensor ensures accurate air-fuel mixture readings to support optimal engine performance and emissions compliance.

  • Specific fit for Chevrolet Aveo, Aveo5, Pontiac G3, G3 Wave, and Suzuki Swift+
  • Heated narrow-band oxygen sensor type for faster response
  • Threaded mounting type with 18 mm thread diameter and 22 mm hex size
  • Includes a 13.2-inch wiring harness with 4 wires and blade terminals
  • Durable metal housing finished in steel for long-lasting use
  • Connector features a square shape with male gender terminals
  • Overall length of 16.5 inches with 15.4 inches from sealing surface to connector end

Detailed Product Description

The Bosch Engineered Oxygen Sensor 18034 is a standard replacement part engineered to meet the specific requirements of certain Chevrolet, Pontiac, and Suzuki models. This sensor features a heated narrow-band design, which allows it to reach operating temperature quickly, improving fuel efficiency and reducing emissions. The sensor’s metal housing and steel finish provide durability under harsh engine conditions. It mounts via a threaded connection with an 18 mm diameter and uses a 22 mm hex size for installation. The included wiring harness measures 13.2 inches and has four wires with blade-type terminals, ensuring a secure and reliable electrical connection. The connector is square-shaped and male gender, matching the original equipment specifications for a precise fit.

Compatible Vehicles and Applications

  • Chevrolet Aveo and Aveo5
  • Pontiac G3 and G3 Wave
  • Suzuki Swift+

This oxygen sensor is designed to replace faulty or worn sensors that can cause issues such as poor fuel economy, increased emissions, rough idling, and engine performance problems.

Common Issues Addressed by Oxygen Sensor 18034

  • Check engine light triggered by oxygen sensor faults
  • Reduced fuel efficiency due to inaccurate air-fuel mixture readings
  • Increased exhaust emissions and failed emissions tests
  • Engine hesitation or rough idling
  • Potential damage to catalytic converter from improper sensor signals

Installation Notes and Tips

Installation requires removal of the old oxygen sensor and threading the Bosch 18034 sensor into place using a 22 mm wrench or socket. Ensure the wiring harness is connected securely to the vehicle’s harness with the correct orientation of the square male connector. Avoid damaging the wiring during installation and verify the sensor is properly tightened to the manufacturer’s torque specifications. No mounting bracket is included, so use the existing mounting points on the vehicle.

Quality Assurance and Warranty

The Bosch Engineered Oxygen Sensor 18034 is manufactured to meet OEM standards for fit, form, and function. It is constructed with high-quality metal housing and reliable electrical components to ensure consistent performance. This part is a standard replacement sensor designed to maintain emission control system integrity. Warranty information should be confirmed with the parts provider or Bosch directly.

This part fits 10 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2011ChevroletAveo1.6LL4DownstreamBosch Engineered Oxygen Sensor
2011ChevroletAveo51.6LL4DownstreamBosch Engineered Oxygen Sensor
2010ChevroletAveo1.6LL4DownstreamBosch Engineered Oxygen Sensor
2010ChevroletAveo51.6LL4DownstreamBosch Engineered Oxygen Sensor
2010PontiacG31.6LL4DownstreamBosch Engineered Oxygen Sensor
2009ChevroletAveo1.6LL4DownstreamBosch Engineered Oxygen Sensor
2009ChevroletAveo51.6LL4DownstreamBosch Engineered Oxygen Sensor
2009PontiacG31.6LL4DownstreamBosch Engineered Oxygen Sensor
2009PontiacG3 Wave1.6LL4DownstreamBosch Engineered Oxygen Sensor
2009SuzukiSwift+1.6LL4DownstreamBosch Engineered 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.