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This is a Genuine Bosch 0258017025 five wire heated LSU 4.9 wideband O2 sensor, this high performance Bosch LSU 4.9 wideband sensor has a very accurate AFR measurement range of 10.0:1 to 20.0:1 and is used widely within the automotive tuning industry. This sensor is a direct replacement sensor for all other aftermarket wideband AFR kits, ECU's or cars that use the Bosch 0258017025 sensor as standard.

• Sensor thread:    M18 x 1.5mm
• Harness length:  100cm
• Sensor number:  0 258 017 025
• Plug number:      1928 404 687