Advanced Autosports
Oil Pressure Sender Relocation Kit
$94.45
Mount your after market oil sender on the fire wall. Complete with all adapter and hose. Sender not included.
The oil pressure port on a Miata is 1/8" BSPT (British Standard Pipe Thread) while most aftermarket senders are 1/8" NPT (National Pipe Thread). This adapter uses a braided steel line and an adapter block to relocate your sender to the fire wall where it is more accessible and less vulnerable. The block has 3 different ports to allow connection of multiple sending units such as gauges, data, and warning lights.
Find on page 72 in Spec Miata Construction Manual