912-08-06-BLK 1/2" to 3/8" NPT Reducer | Black Anodised

Speedflow 912-08-06-BLK | 1/2" to 3/8" NPT Reducer — Black Anodised

Step down a 1/2" NPT port to accept 3/8" NPT fittings, sensors, and adapters with the Speedflow 912-08-06-BLK — a precision-machined NPT reducer bushing in black hard anodised aluminium. A practical one-step reducer for builds where large 1/2" NPT ports on oil pans, filter housings, and high-flow engine components need to accept the 3/8" NPT thread standard — commonly used across oil thermostats, remote filter adaptors, and higher-flow sensor and plumbing applications. The closest step-down from 1/2" NPT, making it the natural choice when 1/4" NPT is too small for the application.

Why Choose the Speedflow 912-08-06-BLK?

• Precision CNC machined aluminium — accurate 1/2" NPT male and 3/8" NPT female threads for a reliable, leak-free connection
• Black hard anodised finish — corrosion, heat, and fluid resistant for long-term reliability in demanding engine bay environments
• 1/2" NPT male to 3/8" NPT female — reduces a large 1/2" NPT port to accept 3/8" NPT fittings and components
• Closest step-down from 1/2" NPT — ideal when 3/8" NPT flow capacity is needed but the port is 1/2" NPT
• Compact bushing design — minimal protrusion for tight engine bay installations
• Lightweight construction — negligible weight impact for race and performance builds

Ideal Applications

Reducing 1/2" NPT oil pan ports to accept 3/8" NPT oil thermostats and filter adaptors, adapting large filter housing ports to 3/8" NPT plumbing, fitting 3/8" NPT fittings and sensors into 1/2" NPT engine ports, and any application requiring a 1/2" to 3/8" NPT thread reduction.

Specifications

• Part Number: SF912-08-06-BLK
• Male Thread: 1/2" NPT
• Female Thread: 3/8" NPT
• Finish: Black Hard Anodised Aluminium
• Type: NPT Reducer Bushing

Stock held locally in Perth, WA — fast dispatch Australia-wide.