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The assembly is built to Hella's high standards for durability and performance
OEM Cross: Replaces multiple OEM parts: 171121251R
9L4 Volkswagen Jetta 1990–1992 1
6 GLI VW JETTA I (16) 1978–1980 1
NTK Oxygen Sensor – Upstream for Saab 9-7x (2005) armlabz The assembly is built toThe NTK Oxygen Sensor (Part 21054) is an upstream replacement for Saab 9 7x 4. 2L6 vehicles (2005). It monitors exhaust oxygen before the catalytic converter to help the engine management system maintain the ideal air fuel ratio, boosting fuel efficiency and lowering emissions. Key Features & Benefits Accurate Readings: Provides consistent, reliable data for optimal engine tuning. Durable Design: Resistant to heat, vibration, and contamination for