100TECH Fuel Gauge Sending Unit 29"(737mm）Marine Fuel Level Sending Unit Fuel Sender Water Tank Sender Unit for Vehicle RV Fuel Gas Tank Sender Fuel Level Sensor Fuel Gauge Sending Unit 240-33 ohm 240-33 ohms fuel gauge Please Measure from the Top

Please Measure from the Top of Your Tank to the Bottom on the Outside and Subtract 1 Inch the Length of Sender

Install diameter: Φ52mm or 2-1/16''

50"(38mm) Hole Would be Perfect

2)It’s Suggested That Hook Up The New Gauge And Sensor On The Bench First

100TECH Fuel Gauge Sending Unit 29"(737mm）Marine Fuel Level Sending Unit Fuel Sender Water Tank Sender Unit for Vehicle RV Fuel Gas Tank Sender Fuel Level Sensor Fuel Gauge Sending Unit 240-33 ohm 240-33 ohms fuel gauge Please Measure from the TopProduct Description 100TECH Stainless Steel Fule tank Sending Unit is Made With OKI Reed Switch(Imported from Japan). It's Easy to Install. A Perfect Match with All the Screw Holes Lining up the Unit Comes with 5pcs of Screws and 1pc of New Neoprene Gasket. It is the Direct Replacement for Arm Type Sensors or Original Wema Unit for Better Durability and Reliability. The Substantial Flange can Seal the Tank Completely The 100TECH Marine Fule Sending