Proflow Fitting NPT Pipe Reducer 3/4in. To 3/8in, Black Electrical Components This will give you the

This will give you the minimum belt length required for your application

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3/8 sleeves to suit your aluminium hard line

The Aeroflow Performance 5-wire heated wideband LSU 4

Proflow Fitting NPT Pipe Reducer 3/4in. To 3/8in, Black Electrical Components This will give you thePart Number : Proflow's reducers have one job, to connect different sized lines and hose togetheror to other components in your fuel, cooling, or other fluid system. These AN flare or NPT pipe thread fittings are made from aluminium. They're available in a variety of sizes, finishes, attachment styles, and configurations (straight or angled).