1999–2002 Range Rover Secondary Air Injection Pipe Fitting – Fits 4.0 SE & 4.6 HSE | Part # WAD500010 This pipe fitting is a crucial component of the secondary air injection system on 1999–2002 Range Rover models, including both the 4.0 SE and 4.6 HSE trims. It helps channel fresh air into the exhaust stream during cold engine starts, reducing harmful emissions and improving overall engine efficiency until the catalytic converter reaches optimal temperature. Over time, original air injection fittings can become cracked, corroded, or blocked—leading to check engine lights, failed emissions tests, or reduced fuel economy. Replacing a worn or damaged fitting ensures that the system remains sealed, functional, and compliant with emissions standards. This OEM-spec replacement is built for durability and proper fitment. It connects securely with the vehicle's existing air injection components without the need for modifications. Its robust construction ensures a long service life even in high-temperature environments. Whether you're restoring your emissions system, resolving an engine code, or simply keeping your Range Rover running smoothly, this replacement fitting provides a reliable and cost-effective solution.
