Rareelectrical Dual Fuel Air Pressure Gauge Compatible with Mercury Optimax Verado Dfi Outboard Engines Simultaneous Fuel Air Rail Testing Mercury 852087 852087A1 852087A2

OEM PART NUMBERS: Mercury: 852087, 852087A1, 852087A2, 852087A3 Mercury: 91-881834A1 / 881834A1 Mercury: 91-852087, 91-852087A1, 91-852087A2, 91-852087A3SPECIFICATIONS: Type: Dual Fuel/Air Pressure Gauge Function: Simultaneous fuel and air pressure testing Connection: Schrader valve test ports on fuel and air rails Platform: Mercury DFI Optimax, Verado, DFI Sport Jet Weight: 2 lbs Condition: NewAPPLICATIONS: Mercury DFI Optimax Outboards — All HP ratings Mercury Verado Outboards — 135, 150, 175, 200, 225, 250, 275, 300 HP Mercury DFI Sport Jet All Mercury outboard models equipped with schrader valve fuel and air test ports⚠️ Verify OEM part number from your original unit before ordering to ensure proper fitment. Dual Fuel/Air Pressure Gauge — Mercury Optimax Verado DFI Outboard Dual pressure gauge tool for simultaneous fuel and air pressure measurement on Mercury DFI Optimax and Verado outboard engines. Connects to the schrader valve test ports on both the fuel rail and air rail for efficient diagnostic testing. Used by marine technicians to verify proper fuel delivery pressure, air compressor output, and the critical fuel-to-air pressure differential on Optimax DFI systems. The fuel side operates at approximately 88-90 PSI with the air side regulated 10-15 PSI lower, and this gauge allows simultaneous verification of both readings. Compatible with all Mercury Optimax DFI horsepower ratings, Verado 135 through 300 HP, and DFI Sport Jet models. Replaces Mercury 852087, 852087A1, 852087A2, 852087A3, and 91-881834A1. New aftermarket unit built to OEM specifications. This item fits various applications by part number. New aftermarket unit built to OEM specifications for reliable pressure readings. Always verify your OEM part number before ordering to ensure compatibility.

• Compatible with Mercury. Please verify your OEM part number from your original unit to help ensure fitment.
• Replaces: Oem Part Numbers: / Mercury: 852087 / 852087A1 / 852087A2 / 852087A3 / Mercury: 91-881834A1 / 881834A1 / Mercury: 91-852087, 91-852087A1, 91-852087A2, 91-852087A3 / Specifications: / Type: Dual Fuel/Air Pressure Gauge / Function: Simultaneous Fuel And Air Pressure Testing / Connection: Schrader Valve Test Ports On Fuel And Air Rails / Platform: Mercury Dfi Optimax, Verado, Dfi Sport Jet / Weight: 2 Lbs / Condition: New / Application: / Mercury Dfi
• Applications: Mercury Dfi Optimax Outboards: / All Mercury Dfi Optimax Outboard Models / 75 Hp Through 300 Hp Optimax Dfi / 2.5L V6, 3.0L V6 Optimax Configurations / Mercury Verado Outboards: / Verado 135 Hp 4-Cylinder (2006+) / Verado 150 Hp 4-Cylinder (2006+) / Verado 175 Hp 4-Cylinder (2006+) / Verado 200 Hp 4-Cylinder / 6-Cylinder (2006+) / Verado 225 Hp 6-Cylinder (2006+) / Verado 250 Hp 6-Cylinder (2006+) / Verado 275 Hp 6-Cylinder (2006+) / Verado 300
• Applications: (2006+) / Verado 300 Hp 6-Cylinder (2006+) / / Mercury Dfi Sport Jet: / Sport Jet 200, 240, 250 Dfi / / Function: / Checks Fuel And Air Pressure Simultaneously / Connects To Schrader Valve Test Ports On Fuel And Air Rails / Essential Diagnostic Tool For Dfi Fuel System Troubleshooting / / Note: This Item Fits Various Applications By Part Number. Verify Oem Part Number Before Ordering To Ensure Proper Fitment. / ...
• Fuel / Air Pressure Gauge Source: Aftermarket