Bosch 17128 Premium Wideband Air Fuel Oxygen Sensor

The Bosch 17128 is a premium wideband air/fuel oxygen sensor engineered to deliver precise exhaust oxygen measurements for optimal engine performance. Unlike traditional switching O2 sensors that simply indicate rich or lean conditions, this wideband sensor provides continuous, high-precision measurements of the air-fuel ratio across the full lambda range, giving the engine control unit far more detailed information for exceptionally accurate mixture control.

Key Features:

• Advanced wideband sensing element for exact air/fuel measurement
• Fast light-off capability with optimized heater control for quick operation
• Robust ceramic construction designed to withstand rapid load changes and harsh thermal cycles
• Planar pump-cell design pioneered by Bosch, now the global standard for modern engine management
• Direct-fit OE connectors and harness for hassle-free installation
• Pre-coated threads with anti-seize compound straight from the box
• 100% functional quality testing before leaving the factory

This sensor supports improved fuel efficiency, enhanced engine performance, and reduced emissions under all operating conditions. Backed by more than five decades of OE development experience, Bosch oxygen sensors deliver the same OE-proven quality trusted by vehicle manufacturers worldwide.