0-100 psi small Oil Pressure Gauge Fuel Gauge universal 1/8 NPT Oil Fuel Pressure Gauge Liquid Filled Polished Case Application: Universal Features and Benefits: Compact sized fuel pressure Gauge. Proper fuel pressure is critical for adjusting your carburetor or fuel injection, so don't rely on a poor quality gauge. Liquid FILLED keeps the needle steady, which is extremely critical during engine operation. Universal Liquid Filled Fuel Pressure / Oil Pressure Gauge Dimensions& Material: 0-160 psi/0-100psi Thread Type: 1/8" NPT Color: SILVER,BLACK CNC Machined From AL6061-T6 Billet Aluminum Case With Liquid Filled Internals and Brass Internals Package Included: 1 x Oil Gauge . (100% Brand New Never Used Or Installed) All items are Brand New unless stated otherwise on the listing. We sell DIY (Do It Yourself) Items with a few exceptions. We take no responsibility in teaching you how to install. Professional installation is strongly recommended.