Diesel Fuel Tank Senders Sender Part No. Tank Diameter OEM Sender Sender Resistance Values (in Ohm's) IDT300-SENDER 16" diameter tanks ISUZU Full = 3 ohm's (+/- 2.1) Half = 32.5 ohm's (+/- 4.8) Empty = 110 ohm's (+/- 7.7) UD1633-SENDER 16" diameter tanks UD Nissan Full = 0-1 ohm's Half = 48.5 - 51.5 Empty = 147.5 - 152.5   UD1633L-SENDER 16" diameter tanks UD Nissan (Models 1200, 1300, 1400 & 1800CS) Full = 3-5 ohm's Half = 30.0 - 36.0 ohm's Empty = 80.0 - 85.0 ohm's   UD2290-SENDER 22" diameter tanks UD Nissan Full = 0-1 ohm's Half = 48.5 - 51.5 ohm's Empty = 147.5 - 152.5 ohm's   UD1850-SENDER 18" diameter tanks UD Nissan Full = 0-1 ohm's Half = 48.5 - 51.5 ohm's Empty = 147.5 - 152.5 ohm's   MFTA SENDER 16" diameter tanks Mitsubishi/Fuso Full = 0-1 ohm's Half = 48.5 - 51.5 ohm's Empty = 147.5 - 152.5 ohm's   Our unique sender does not incorporate a float on a wire rod which can interfere with internal tank items such as the pick-up tube. The 5 hole pattern can be rotated in any orientation to match our tank or yours. Note: Three important things must be known before ordering the proper sender: 1. The tank outside diameter. 2. The sender resistance values. This is the signal (in ohm's) that is given to and read by the vehicle fuel level gauge. Improper sender values will either inable the fuel gauge or give improper gauge level information to the driver. 3. The electrical connection between sender and vehicle fuel gauge harness. The connections must mate properly. Call us if you have a question or need more information.