Since the transducer body is aluminum, you must use steel fittings on the transducer and use not more than 15 ft lb = 180 in lbs., or two full turns past hand tight.

** Do not use teflon tape, or thread sealant compound of any kind. [ See #503 Fuel Flow Installation Manual – Heading #2 “Initial Check Out”  — line item #14.]

 Fittings:

• #4 AN816-4 Steel 1/4 NPT
• #6 AN816-6 Steel 1/4 NPT

• #8 AN816-7 Steel (JPI only has -7 1/4 NPT)

** Do Not Use Aluminum or Brass – only Steel ***