Product Info:- Autometer Sport Comp 52Mm Mechanical 0-100 Psi Oil Pressure Gauge- Size: 2-1/16 Inch (52.4Mm)- Type: Mechanical- Range: 0-100 Psi- Lighting: IncandescentManufacturer Part Number:- Part Number: 3321Product Features:- Traditional Incandescent Lighting Illuminates Around The Perimeter Of The Dial- Autometer’S 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 1/8 Inch Nylon Line, 1/8 Inch Npt Compression Fittings, 1/4 Inch Npt Adapter, Bulb And Socket Assembly, Red And Green Bulb Covers, Mounting Hardware, And Detailed Instructions For InstallationAdditional Info:- 1/8 Inch Npt Male To 1/8 Inch Compression Fitting, 1/8 Inch Npt Female To 1/8 Inch Compression Fitting, 1/8 Inch Npt To 1/4 Inch Npt Bushing- 2230