Bosch 15037 Downstream Oxygen Sensor 4-Wire Heated OE Replacement

The Bosch 15037 is a premium 4-wire heated downstream oxygen sensor engineered as a direct OE replacement. Bosch invented the automotive oxygen sensor and remains the world's leading manufacturer, bringing unmatched expertise to every sensor produced. The 15037 is built to meet or exceed original equipment specifications, delivering precise exhaust gas readings to the engine control unit (ECU) to maintain optimal air-fuel mixture, fuel efficiency, and reduced emissions.

Key Features:

• Patented dual-filter protection: A catalytically activated fine particle filter prevents contamination and ensures accurate voltage output to the engine's emissions control computer; a second filter doubles protection against exhaust gas contamination for extended sensor life
• Premium ceramic element: Constructed with Zirconium or Titania and Yttrium ceramic technology for superior resistance to mechanical and thermal shock
• 4-wire heated design: Integrated heater element brings the sensor to operating temperature quickly, enabling faster closed-loop engine management from cold starts
• 28.7-inch wire length with OE-style silicone boots for a secure, factory-correct fit
• Direct plug-in installation: True OE-match connector — no cutting or splicing required
• Narrow-band sensor type with 18mm threaded mounting and 22mm hex size
• Helps prevent premature catalytic converter failure caused by inaccurate oxygen readings
• Rigorously factory-tested to ensure performance within design specifications

Specifications:

• Sensor Type: Heated, Narrow-Band
• Wire Quantity: 4
• Wire Length: 28.7 in.
• Thread Size: 18mm
• Hex Size: 22mm
• Mounting Type: Threaded
• Location: Downstream (After Catalytic Converter)
• Connector Shape: Rectangle (Male)
• Sold Individually

Cross-Reference Part Numbers: 12788130, 12799169, 2344267, 25024409, 25147, ES20162, F00E262681, W01331817814

As the original inventors of the automotive oxygen sensor with over 1 billion units produced, Bosch delivers the engineering heritage and manufacturing precision needed for reliable, long-lasting emissions system performance.