1999–2004 Land Rover Discovery II – Secondary Air Injection Pipe Fitting | Part # WAD500010
This air injection pipe fitting is a critical component used in select Discovery II models from 1999 through 2004. It plays a key role in supporting the vehicle’s emissions system during cold starts by routing fresh air into the exhaust stream to help reduce pollutants before the catalytic converter reaches operating temperature.
Over time, exposure to heat, moisture, and engine vibrations can lead to cracks, corrosion, or leaks in the original pipe fitting. A damaged or failing connection may trigger engine warning lights or lead to poor emissions performance. Replacing it with a high-quality, OEM-spec component like this one ensures that your system remains sealed and functions as intended.
This fitting is engineered for a precise fit and reliable connection with existing hardware. It installs easily without modification and is compatible with the original air injection layout found on factory Discovery II models. Constructed from durable materials, it resists wear and helps extend the service life of your emissions system.
If you’re addressing emissions-related trouble codes or restoring a vehicle to proper operating condition, this replacement fitting offers a dependable solution. It's a practical part to keep your vehicle running clean and performing efficiently.