Bosch Legacy LSU 4.2 Oxygen Sensor 6 Pin Connector

Bosch LSU 4.2 Oxygen Sensor Connector

The Bosch LSU 4.2 oxygen sensor connector is a replacement plug for the Bosch LSU 4.2 wideband lambda sensor. This 6-pin connector kit is used with most aftermarket wideband controllers and standalone ECUs that run the LSU 4.2 sensor.

Disclaimer: Connector identification is based on visual appearance only. We cannot guarantee this connector will fit your specific application. Please compare your existing connector against the product images before purchasing.

Commonly used for wideband oxygen sensor installations, ECU upgrades, and motorsport builds requiring air-fuel ratio monitoring. The LSU 4.2 is a legacy Bosch wideband sensor that remains popular in the aftermarket tuning community.

What makes the LSU 4.2 unique? The LSU 4.2 features a distinctive "D" shaped 6-pin connector housing that distinguishes it from the later LSU 4.9 design. When building extension cables or repairing wideband sensor wiring, you'll need the matching female (harness-side) connector to mate with the sensor.

Kit includes:

• 1× connector housing (female, harness-side)
• 6× terminals
• 6× seals

Vehicle fitment includes (but not limited to):

• Any vehicle using Bosch LSU 4.2 wideband oxygen sensors
• Aftermarket wideband controller installations (various brands)
• Standalone ECU wideband inputs (various brands)
• Custom engine management systems

Ideal for: wideband sensor repairs, extension cable fabrication, ECU wiring harness builds, and motorsport air-fuel ratio monitoring systems.

Disclaimer: Connector identification is based on visual appearance only. We cannot guarantee this connector will fit your specific application. Please compare your existing connector against the product images before purchasing.

Shipping

Express orders placed before 2pm ACST are dispatched the same business day, while tracking for standard orders will be available within 24 hours of purchase. We ship Australia-wide from our Adelaide warehouse and orders over $150 qualify for discounted postage. Every shipment includes tracking, and you'll receive the details by email as soon as your order leaves us.

Returns

We offer a 30-day money-back guarantee on any product that arrives in good condition and hasn't been damaged through installation or use. Return shipping is the customer's responsibility, and once we receive the item we'll process your refund within 3 business days to your original payment method.

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