The Mocal sensor sandwich plate adapter kit is designed to take sensors that read oil pressure and temperature. Supplied with an M20x1.5 oil filter extension bolt, the sandwich plate works with all Mazda MX-5s. Beautifully machined from billet aluminium, the Mocal sandwich plate adapter is extremely high quality. The large rubber o-ring seals perfectly against the block, ensuring there are no oil leaks. With a 3/8 BSP port for mechanical sensors and 3 x 1/8 NPT ports for electric sensors? (using the supplied adapter) the Mocal sandwich plate is ideal for many different applications. Features CNC Machined Billet aluminium 2 x 1/8 NPT ports 1 x 3/8 BSP port M20 x 1.5 extension bolt