Bosch 15729 Universal Oxygen Sensor 4-Wire Heated O2 Sensor

The Bosch 15729 is a premium universal oxygen sensor designed for vehicles where the original vehicle-side connectors or cables are too damaged to reuse with an exact-fit oxygen sensor. This 4-wire heated oxygen sensor features Bosch's patented OE SmartLink connector system that enables quick, easy installation without soldering or special tools.

Key Features:

• 4-wire heated universal oxygen sensor with 25.6-inch wire length for maximum harness replacement
• OE SmartLink connector system - no soldering required for installation
• Stainless steel body that is fully submersible and hermetically sealed against exhaust emissions
• 18mm thread diameter for standard mounting applications
• Factory tested at 1,000 degrees Celsius to ensure functional robustness
• Designed to improve fuel economy while reducing harmful emissions
• All installation components included

Properly functioning oxygen sensors are critical for optimal fuel efficiency and emission control. The oxygen sensor detects oxygen levels in exhaust gases and sends signals to the engine computer to fine-tune the air/fuel mixture, ensuring maximum catalytic converter efficiency. A worn oxygen sensor can cause excessive fuel consumption, elevated emissions, premature catalytic converter failure, and decreased engine performance. Bosch invented the automotive oxygen sensor in the late 1960s and remains the world's leading supplier of oxygen sensor technology.

Technical Specifications:

• Wire Configuration: 4-wire (black signal wire, gray ground wire, 2 white heater wires)
• Sensor Type: Thimble-style narrow-band
• Material: Zirconium ceramic element
• Voltage Range: 0-1 volt
• Mounting: Threaded (18mm)
• Wire Length: 648mm (25.5 inches)

Cross-Reference Numbers: 0258005729, 234-4212, 234-4210, 29410, 213-1166, SG300

Note: Universal sensors require wire splicing to connect to the vehicle harness. When vehicle-side connectors are in good condition, exact-fit oxygen sensors are the preferred solution. This universal sensor is ideal when damaged connectors prevent the use of exact-fit replacements.