The AEM 30-4005 O2 Sensor Bung is a cost-effective solution for EFI conversions or performance tuning. It features an M18 x 1.5mm thread pitch, which is the industry standard for most oxygen sensors, including Bosch LSU 4.2 and 4.9 units used by AEM, Innovate, and Holley. Because it is made from mild steel, it is intended for use with standard steel exhaust piping and requires welding for installation
- Material: Mild Steel (economical for non-stainless exhaust systems).
- Thread Size: M18 x 1.5mm (Female).
- Design: Flanged for easier welding alignment.
- Compatibility: Fits all standard 18mm oxygen sensors.
| Brand | AEM |
|---|---|
| Product Dimensions | 2.54 x 2.54 x 1.57 inches |
| Manufacturer Part Number | 30-4005 |