NTK 000-542-76-11 Oxygen Sensor Rear Lambda Sensor OE Replacement

The NTK 000-542-76-11 is a precision-engineered replacement oxygen sensor (also known as a lambda sensor) designed as a direct OE-quality substitute for Mercedes-Benz applications. NTK is the world's largest supplier and manufacturer of original equipment oxygen sensors, bringing that same OEM-level engineering and quality to the aftermarket.

Oxygen sensors play a critical role in the vehicle's emissions and engine management system. Mounted in the exhaust system, the sensor continuously monitors exhaust gas oxygen levels and relays that data to the ECU, which uses it to fine-tune the air-fuel ratio. A properly functioning sensor helps reduce harmful emissions, optimize fuel economy, and extend catalytic converter life.

Key Features:

• OEM Cross-Reference: Replaces Mercedes-Benz OEM part number 000-542-76-11 (also referenced as 5427611); rear/downstream position
• Dual-Coated Platinum Element: Superior platinum interface delivers fast light-off and response times with enhanced durability
• 3-Stage Ceramic Overcoat: Contaminant-resistant plasma jet and deposit trap overcoat protects the sensor element against poisoning
• OE-Specified Connector: Equipped with a waterproof, OE-specified connector and harness hardware for a direct, hassle-free fit
• Advanced Ceramic Technology: NTK controls the ceramic element from raw material to finished product, ensuring consistent quality and performance
• Meets or Exceeds OEM Specs: Engineered to OE fit, form, and function standards — not a generic universal sensor
• Extensively Tested: Subjected to vibration and thermal shock testing during OE development; 100% tested during manufacturing

NTK oxygen sensors are trusted by vehicle manufacturers worldwide as original equipment. This aftermarket equivalent delivers that same reliability and precision for your repair or replacement needs.