Gauge Senders - Fuel Level Senders

2-Wire Fuel Level Sender
Starting From:
$77.99

This Part has options, please click the button below to order.

2-Wire Fuel Level Sender

105-91 + Option(s)

2-Wire Fuel Level Sender

  • With a double tube design, these senders measure the amount of air trapped between the tubes providing you accuracy you  can't get from float style senders
    • For use with 240-33 ohm gauges
    • (240 ohm empty and  33 ohm full)
  • Will work for gasoline or diesel fuel

NOTE: These senders can only be trimmed to a minimum of half their original length, Such as 6" for a 12" Sender and 12" for a 24" sender and so forth. These senders will NOT work with digital gauges. They are designed for analog type marine fuel level gauges. Use the 3-wire sender for digital gauge applications.

IMPORTANT: These senders must be re-calibrated if trimmed. THEY DO NOT auto calculate full and empty! See Instructions. The senders auto calibrate to type and grade of gas used.


2-Wire Fuel Level Sender
Starting From:
$77.99

This Part has options, please click the button below to order.

3-Wire Fuel Level Sender

105-91 + Option(s)

3-Wire Fuel Level Sender

  • With a double tube design, these senders measure the amount of air trapped between the tubes providing you accuracy you  can't get from float style senders
    • For use with 240-33 ohm gauges
    • (240 ohm empty and 33 ohm full)
  • Will work for gasoline or diesel fuel

NOTE: These senders can only be trimmed to a minimum of half their original length, Such as 6" for a 12" Sender and 12" for a 24" sender and so forth.


Adjustable Fuel Level Sender
Your Price:
$29.95

Adjustable Fuel Level Sender

105-FS102

Adjustable Fuel Level Sender

    • For use with 240-33 ohm gauges
    • (240 ohm empty and 33 ohm full)
  • Adjustable and can be tailored to most fuel tanks.
  • Most common type of fuel level sender in production style boats today.
  • Standard 5 Hole mount.
  • For Tanks 6" to 24" deep.

Fuel Level Sender with Return Port
Your Price:
$59.99

Fuel Level Sender with Return Port

105-91350

Fuel Level Sender with Return Port

Designed for top mounting in aluminum, plastic or stainless steel fuel tanks in all types of marine vessels. All stainless steel construction resists corrosion and is ethanol compliant. Meets and exceeds current NMMA and ABYC specifications. SS 1/4" NPT female thread with 3/8" barb. 1/4" ground spade terminal. Pre-bent 90 degree float arm.

  • 6" to 24" tank depth
  • Will not rust or corrode
    • Calibrated for 240-33 ohm gauges
    • (240 ohm empty and 33 ohm full)
  • Adjusts easily to fit your tank
  • Tested to insure accurate readings

Fuel Sender Gasket
Your Price:
$2.99

Fuel Sender Gasket

105-91385

Fuel Sender Gasket

  • ID: 1.50"
  • OD: 2.70"

For Use with: 2-Wire, 3-Wire and Adjustable Fuel Level Senders


SFW Fuel/Water Level Senders
Starting From:
$57.99

This Part has options, please click the button below to order.

SFW Fuel/Water Level Senders

730-SFW + Option(s)

SFW Fuel/Water Level Senders

How It Works
Measurement is done by series of reed switches positioned inside the level tube. A float with built in magnets then triggers the reed relays generating a potential - free resistance with an ohm value that increases or decreases. Resistance output is fully customizable. The float is the only moving part of the sensors, thereby minimizing potential mechanical failures. All sensors are fully insulated to protect against voltage inside the tank.

  • Suitable for Gas, Diesel and Water
  • 316 Stainless Steel
  • SAE 5 Hole Pattern
    • 240-33 OHMS
    • (240 ohm empty and 33 ohm full)
  • other resistances available upon request
  • Constructed to meet and/or exceed all applicable
  • ISO, NMMA/ABYC and USCG standards
  • Optional threaded NPT Adapter for screw in applications
  • Sensors are fully insulated to protect against voltage inside the tank
  • Float is the only moving part of the sensor, minimizing mechanical failure
Sending unit length should be a minimum of one (1) inch less than the plastic tank depth, and three quarters (0.75) of an inch less than the metal tank depth. Note: If metal tank surface flexes, deduct one (1) inch from the depth.