Bosch 18104 Oxygen Sensor - Downstream or Upstream

Overview of Bosch Validated Oxygen Sensor 18104

The Bosch Validated Oxygen Sensor 18104 is designed specifically for select Hyundai and Kia models, including the Forte, Optima, Santa Fe, Sonata, Sorento, Sportage, and Tucson. This wide-band oxygen sensor features a heated design and precise fitment to ensure accurate emissions control and optimal engine performance.

• Heated oxygen sensor for faster response times
• Specific fit for Hyundai and Kia vehicles
• Wide-band sensor type for accurate air-fuel ratio readings
• 14.4-inch wiring harness with included connector
• Threaded mounting type with 18 mm thread diameter
• Metal housing with steel finish for durability
• Blade terminal type with male connector and terminal gender
• Standard replacement grade for reliable performance

Detailed Product Features and Specifications

The Bosch Validated Oxygen Sensor 18104 is a wide-band sensor equipped with a heating element to reduce warm-up time and improve emission control efficiency. It includes a 14.4-inch wiring harness with a rectangular male connector featuring six terminals and blade-type terminals for secure electrical connections. The sensor is designed with a threaded mounting type, using an 18 mm thread diameter and a 22 mm hex size for installation. Constructed with a metal housing and steel finish, this sensor offers durability under harsh engine conditions. The overall length from sealing surface to connector end measures 16.7 inches, with a total length of 17.9 inches, ensuring proper fitment in the exhaust system. This part is a standard replacement grade, engineered to meet OEM specifications for Hyundai and Kia models.

Compatible Vehicles and Applications

This oxygen sensor is compatible with the following Hyundai and Kia models:

• Hyundai Forte, Forte5, Forte Koup
• Hyundai Sonata
• Hyundai Santa Fe, Santa Fe Sport
• Kia Optima
• Kia Sorento
• Kia Sportage
• Kia Tucson

It is designed to maintain proper air-fuel mixture readings, which helps reduce emissions and improve fuel efficiency in these vehicles.

Common Issues Addressed by Bosch Oxygen Sensor 18104

• Check engine light triggered by faulty oxygen sensor readings
• Poor fuel economy due to incorrect air-fuel mixture
• Increased emissions and failed emissions tests
• Engine performance problems such as rough idling or hesitation
• Delayed sensor response affecting catalytic converter efficiency

Installation Notes and Tips

Installation of the Bosch Validated Oxygen Sensor 18104 requires a 22 mm oxygen sensor socket for removal and tightening. The threaded mounting type ensures a secure fit in the exhaust manifold or pipe. The included 14.4-inch wiring harness with a rectangular male connector simplifies electrical connections. It is important to verify the sensor’s orientation and connector compatibility with the vehicle’s wiring harness before installation. No mounting bracket is included, so the sensor mounts directly via threading. Proper torque specifications should be followed to avoid damage to the sensor or exhaust components.

Quality Assurance and Warranty

The Bosch Validated Oxygen Sensor 18104 is manufactured to meet OEM standards for fit, form, and function. Bosch’s validated product line ensures reliable performance and durability under typical operating conditions. This sensor is a standard replacement grade part, designed to restore proper emissions control and engine management. Warranty coverage details should be confirmed with the parts provider or Bosch directly.