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Adjustable Fuel Senders for Marine Applications

8900-B8900 Product Photo


This fuel sender was designed for top mounting in unpressurized metal or plastic tanks, 10" [254mm] to 30" [762mm] deep. It includes special features and protection from corrosion problems (internal and external to the tanks) making it the quality standard of the industry.

General Information & Features

The sender has a slotted support arm which allows it to be adjusted for tank depths from 5 to 15 inches. When the required pivot point has been established, any surplus support arm length is simply cut off.

Standard float arm length is 18-1⁄2" [470mm], proper for a 30" deep tank. Refer to Cut Length Chart DS-1247 for proper sizing for shallower tanks.

Float and washers are furnished unassembled to the float arm. The cutting and crimping process is done after float assembly. Standard configuration, with the hole at 12:00, has the float arm swinging at 3:00.

A stainless steel self-tapping screw and a stainless steel lock-washer are provided to secure ground wire to the sender head.

This marine fuel sender is equipped with a thick film resistance card available in ranges of 240 to 30, 0-90 or 10-180. Order model 9349-07240, 9349-07090 or 9349-07180 accordingly.

The recommended gasket for use under the head is made of Buna-N and must be ordered separately under part number 0015-00716.


Data Sheet

DS-953 Installation Instructions

DS-1247 Cut Length Chart (available upon request)

General Specifications*


Recommended for top mounting only.


System accuracy depends upon proper sender sizing. Resistance tolerances are +0%, -3% at empty; +3%, -0% at full. System accuracy may depend on tank shape. System accuracy may be less near full and empty. System accuracy may be less if tank is not level. System accuracy may be less depending upon indicator. This sender is not to be used for filling.


-40°F to 158°F. -40°C to 70°C, diesel or gaslone.


Qualified at 2g, 40 Hz, 24,000,000 cycles.


0.5 Watts maximum.

Leak Test

Passes 16 PSIG [1,1 Bar] test.

*Materials and specifications are subject to change without notice. Pressure ratings subject to change due to temperature and other environmental considerations.

Materials of Construction*


Tempered aluminum, made to SAE pattern for fuel senders (2-1/8" bolt circle for 5 #10 screws).


Tempered aluminum.

Card Holder & Head Insulator

Injection-molded thermoset plastic.

Ground Strap & Signal Strap

Tin-plated brass or copper.

Center Stud, Nuts & Washers


Resistance Element

Thick film.

Contact Spring

Plated beryllium copper.




Nitrile rubber.

Float Rod

Stainless steel.

Ground Screw & Lock-washer

Stainless steel.