Big End Performance 15021 Oil Pressure Gauge 1-1/2 Inch 0-30 PSI Liquid Filled Black

The Big End Performance 15021 is a professional-grade liquid-filled oil pressure gauge designed to provide accurate and stable engine monitoring. This compact 1-1/2 inch diameter gauge features a 0-30 PSI measurement range, making it ideal for monitoring oil pressure in automotive, marine, and powersports applications.

Key Features:

• Liquid-filled design dampens vibration for steady, easy-to-read measurements
• 1-1/2 inch diameter gauge face with black finish
• 0-30 PSI pressure range optimized for oil pressure monitoring
• Bright pointer and clear numbering for quick reading
• Rubber side plug allows pressure equalization for high-altitude operation
• Durable construction suitable for harsh engine bay environments

The liquid filling inside this gauge helps eliminate needle flutter caused by vibration and pulsation, providing consistent readings even in high-vibration racing or off-road conditions. The gauge includes a pressure equalization feature via a rubber side plug, which is particularly useful when operating at elevations above sea level to ensure accurate pressure readings.