Vibrant 10419 Heat Sink O2 Sensor Weld Bung for Bosch LSU 4.9

The Vibrant Performance 10419 is a precision-engineered heat sink weld bung designed specifically for use with Bosch LSU 4.9 wideband oxygen sensors. This specialized bung features an integrated heat sink design that helps dissipate thermal energy away from the sensor, protecting sensitive electronics and extending sensor life in high-temperature exhaust applications.

Key Features:

• Heat sink design protects Bosch LSU 4.9 sensors from excessive heat damage
• Precision-machined construction ensures proper sensor fit and seal
• M18 x 1.5mm thread pitch compatible with LSU 4.9 sensors
• Welded installation provides secure, leak-free mounting
• Ideal for turbo applications and high-temperature exhaust systems

This weld bung is essential for custom exhaust fabrication where wideband air/fuel ratio monitoring is required. The heat sink feature is particularly beneficial in applications where the sensor is located close to the turbocharger or other high-heat areas, helping maintain accurate readings and preventing premature sensor failure.