Bosch LR028931 Premium Oxygen Sensor Downstream 4-Wire

The Bosch LR028931 (Bosch part number 16256) is a premium original equipment-type downstream oxygen sensor designed to deliver accurate exhaust oxygen measurements for optimal engine performance. As the inventor of the automotive oxygen sensor, Bosch brings over 40 years of proven expertise to this precision-engineered component.

Key Features:

• Direct-fit replacement with OE connector for easy, plug-and-play installation
• 4-wire heated sensor design with narrow-band technology
• Double laser-welded stainless steel body protects against contamination and extends service life
• Pre-coated threads with anti-seize compound included right out of the box
• Seared protection tube from 100% functional quality testing
• Measures 19.53 inches in total length from sealing surface to connector end
• 22mm hex size for proper installation

Performance Benefits:

• Monitors air-to-fuel mixture in real time to optimize combustion efficiency
• Helps improve fuel economy by ensuring proper engine management
• Reduces harmful exhaust emissions for cleaner operation
• Designed to meet or exceed OE specifications for reliable performance

This downstream oxygen sensor provides accurate readings of oxygen concentration in the exhaust gases, allowing your vehicle's engine control module to make precise fuel delivery adjustments. With typical oxygen sensor lifespans of approximately 100,000 miles, replacing a worn sensor with this genuine Bosch component helps restore optimal engine efficiency and performance.

Specifications:

• OEM Part Number: LR028931
• Bosch Part Number: 16256
• Sensor Type: Narrow-band heated oxygen sensor
• Wire Configuration: 4-wire
• Position: Downstream
• Thread Size: 22mm hex
• Overall Length: 19.53 inches
• Made in Germany