Description: 100% Brand New. This oil pressure test kit contains a wide assortment of durable brass adapters designed to fit mot import/domestic engines. This is a great kit for DIY auto tools, to test engine oil pressure quickly and accurately. Oil Pump Pressure Gauge to 500 PSI for use with most cars trucks motor vehicles, most engines. Chart with Typical engine oil pressure expected readings for hundreds of engines and car makes/models Brass fitting: 3/8"- 18 NPT Male x 1/8"-27 NPT Female Brass fitting: 1/8"-27 NPT Male x 1/8"-27 NPT Female (90 degree Elbow) Brass fitting: 1/8"-28 BSPT Male x 1/8"-27 NPT Female (90 degree Elbow) .