Quick Overview One Of The Single Most Important Factors In Determining How Your Engine Performs (And How Long It Performs Between Rebuilds) Is Proper Oil Temperature During Operation. Knowing Your Exact Temp Allows You To Make Sure Youve Got The Proper Oil Weight And Cooling Capacity. Utilizing Autometers Ultra Precise Bourdon Tube Meter Movement, You Can Be Assured Of The Most Accurate Possible Readings Of The Life Blood Of Your Engine. A 6" Capillary Tube And 1/2" Npt Mounting Nut Are Included. Traditional incandescent lighting illuminates around the perimeter of the dial Autometers Race Proven Mechanical Instruments Provide Trusted Accuracy While Being Simple To Install No electrical system required for gauge operation - compatible with every street or race vehicle Mechanical movements provide accuracy and durability even in the harshest environments Gauge kit includes 1/2" NPT adapter, bulb and socket assembly, red and green bulb covers, mounting hardware, and detailed instructions for installation Attributes: GTIN: 00046074120534 Brand Name: AutoMeter Add-On: N/A Extended Information: Country of Origin: United States Emissions : Released Life Cycle Status: Available To Order Packing Information: Quantity of Each: 1 Package UOM: EA Dimension: 4 x 4 x 3 inches Weight: 0.5 lb PDF: PDF: 2650-1606