989-M14-S O2 Sensor Weld-On Bung M14 x 1.5 Steel | Speedflow

Speedflow 989-M14-S O2 Sensor Weld-On Bung – M14 x 1.5 Steel

Purpose-built for custom exhaust headers and performance engine management systems, the Speedflow 989-M14-S is a CNC-machined steel weld-on bung designed to accept modern O2 sensors with an M14 x 1.5 thread. Manufactured at Speedflow's factory in Taree, NSW, Australia.

Features

• M14 x 1.5 thread – suits modern smaller O2 sensors
• CNC machined at Speedflow's Taree, NSW facility – Australian made
• Ideal for custom headers, exhaust systems, and engine management setups
• Suits data logging, wideband lambda, and emissions test equipment
• Also available in stainless steel (989-M14-SS)

Specifications

• Part Number: 989-M14-S
• SKU: SF989-M14-S
• Material: Steel
• Thread: M14 x 1.5
• Application: O2 / Lambda sensor weld-on bung