This pre-wired Bosch LSU 4.2 connector allows quick and reliable installation of your wideband lambda sensor.

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Supplied with pre-crimped wires and waterproof seals, it guarantees a durable connection in an engine environment.

The pre-wired Bosch LSU 4.2 lambda sensor connector is the ideal solution for fast, clean and safe installation without crimping.

LSU 4.2 technology continues to set the standard for :

• wideband systems
• motor harness renovation
• aftermarket performance installations

Thanks to its pre-assembled harness, it allows:

✔ significant time savings during installation
✔ a reliable and constant connection
✔ clean, professional installation
✔ a reduction in the risk of incorrect crimping.

Its internal locking system combined with watertight seals and protective boot ensures excellent resistance :

👉 to engine heat
👉 hydrocarbons
👉 vibrations
👉 humidity (IP67)

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⚙️ Technical specifications

• Connector type: Bosch LSU 4.2 – 6 pins
• Version: pre-wired
• Protection rating: IP67
• Thermal resistance: up to 150°C
• Mounting type: harness connection (solder or sleeve)
• Material: high-strength polymer
• Applications: wideband & OEM
• Wire length: bundle ready to connect
• Voltage: 12 volts
• Temperature: -50°C to +90°C

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📦 Kit contents

• 1 Bosch LSU 4.2 pre-wired connector
• Seals installed
• Harness with pre-crimped wires

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🧠 Compatibility

Compatible with :

• AEM UEGO
• Innovate LC-1 / LC-2
• PLX Devices
• 14point7
• Bosch LSU 4.2 OEM Installations

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⚡ Applications

🔧 Replacing the lambda sensor connector Bosch 4.2
🏎️ Installations wideband performance
🚗 Engine wiring harness refurbishment
🛠️ Engine conversion and preparation
🧪 Old vehicle wiring harness upgrade

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💡 Discount Autosport advice

For maximum reliability in an engine environment, we recommend connecting the harness by soldering with waterproof heat-shrink tubing.

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✅ Product benefits

✅ Pre-wired version – ultra-fast installation.
✅ 100% Bosch LSU 4.2 compatible
✅ Reliable and durable connection
IP67 protection against water and dust
✅ Resistant to heat and hydrocarbons
✅ Ideal for motor harness refurbishment
✅ Professional quality Discount Autosport
✅ Perfect for wideband performance installations