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Description 

Click here to download installation instructions (PDF)

Float-style fuel level sending units with standard SAE 5-bolt mounting pattern. Easy to install using the supplied hardware and Deutsch connectors (gauge not included). Fits most fuel cells including Radium, ATL, Fuel Safe, Pyrotect, Harmon, Jaz, etc. and extensively used with the Radium Fuel Cell Surge Tank.
Unlike most other senders, this rugged design features a FR4 conformal coated PCB, epoxy potted electrical terminals, and an anodized surface finish making it suitable for use with gasoline, diesel, and specifically alcohol based fuels including methanol, ethanol, E85, etc.
Made in Portland, USA.

NOTES:
-All level senders are 0 ohms empty to 90 ohms full. This 0-90 ohm range is common with many GM gauges. See below for more details.
-Radium does not sell fuel level gauges, but many are available in the aftermarket. A popular option is this Auotmeter Fuel Level Gauge
-If you think your sender is not working correctly, test the resistance between the two wires and verify it is close to the expected values before contacting Radium tech support.
-Fuel level senders carry a 1 year warranty through Radium Engineering
-If purchased with a Radium Fuel Cell Surge Tank (FCST) the sender will come pre-installed.

Probe Lengths: 8", 9", 10", 13", 16"
ALWAYS MEASURE THE INSIDE DEPTH OF YOUR FUEL CELL BEFORE SELECTING SENDER LENGTH. 

If it is not possible to measure the inside depth of the fuel cell, use the general guide below. NOTE: This is a conservative recommendation. Depending on the fill plate and bladder type, a longer probe may potentially work.

If using the Radium Spare Tire Fuel Cell, select the 8" long sender.

Electrical:

12VDC with unit connected to a single electric receiver gauge that utilizes an AC resistance curve (shown below).

Mounting:
When mounted properly, the gasket seal will withstand an internal tank pressure of 6psi conforming to SAE J1810.
 
Includes:
-Level Sensing Probe
-SAE 5-Bolt Gasket
-Stainless Bolts 10-32 (x5)
-Nylon Sealing Washers (x5)
-Deutsch DT 2P Connector
-Deutsch DT Sockets (x2)
20-0439 12AN ORB to 5-Bolt SAE Adapter
This adapter is commonly used with old FCST units (20-014X-XX) which had a small vent. It converts the fuel level flange to a large 12AN ORB vent.

NOTE: a fuel level sender cannot be used with this adapter in place.


20-0146 Fuel Level Sender Block-Off
This block-off plate kit is used when the 5-bolt SAE flanged fuel level sensor is not used. This is extensively used for customers with the Radium Fuel Cell Surge Tank but could be adapted to the following fuel cells: ATL, Fuel Safe, Pyrotect, Harmon, Jaz, Radium Engineering, etc. NOTE: Radium 20-049X-XX FCST does not require the sealing washers.

Includes:
-Anodized 1/8" Aluminum Blank Plate
-5 Bolt Sending Unit Viton Gasket
-Stainless Steel 10-32 Threaded Bolts
-Nylon Sealing Washers


18-0020 Gasket, 5-Bolt Fuel Level Sender
This 5-bolt SAE pattern gasket is used for many fuel cell level senders. The 1/16" thick material is a premium quality variation of FKM Viton.


 

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