The WQT100030LG Fuel Pump Inertia Switch is a critical safety component designed to automatically cut power to the fuel pump in the event of an impact, helping to prevent fuel flow and significantly reduce the risk of fire in an accident. This is a direct replacement, OEM-quality inertia cut-off switch, suitable for Land Rover Defender and Discovery 2 Td5 models. Key Features Safety Cut-Off Function – Automatically interrupts fuel pump power during impact Direct Replacement Part – Plug-and-play fitment, no modifications required OEM Specification Quality – Reliable performance and durability Compact & Lightweight Design – Easy to install and mount Essential Safety Component – Prevents fuel delivery in crash scenarios The inertia switch is integrated into the fuel system electrical circuit and is designed to trip under sudden deceleration or shock, immediately shutting off fuel supply. Vehicle Compatibility Suitable for the following Land Rover models: Defender Td5 (1998–2006) Discovery 2 Td5 (1998–2004) Also commonly used across a wider range of Land Rover vehicles including V8 and earlier diesel models (application dependent). Product Details Part Number: WQT100030LG Supersedes: WQT100030L Type: Fuel Pump Inertia Cut-Off Switch Brand: OEM / Britpart / Allmakes equivalent (depending on supply) Condition: NeW When Should This Be Replaced? Common symptoms of a faulty inertia switch include: Engine cranks but no fuel delivery Intermittent starting issues Sudden fuel cut-out after minor impact or vibration Switch fails to reset Why This Part Matters The inertia switch is a vital safety feature in your Land Rover’s fuel system. In the event of a collision, it ensures the fuel pump is shut down instantly, reducing the risk of fuel leaks and fire hazards. Need Help? If you’re unsure whether this part is correct for your vehicle, feel free to contact us at [email protected] and we’ll be happy to assist.
