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Stewart Warner 391B-F R Swing 10-15 Fuel Level Sending Unit-240/33 Ohm

SAME DAY SHIPPING! Order within the next 10 hours 5 minutes and receive same day shipping

Stewart Warner 391B-F R Swing 10-15 Fuel Level Sending Unit-240/33 Ohm
Stewart Warner 391B-F R Swing 10-15 Fuel Level Sending Unit-240/33 Ohm
Stewart Warner 391B-F R Swing 10-15 Fuel Level Sending Unit-240/33 Ohm

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Details

Reviews

Q & A

What's in the Box

What brand of gauge will you use?
This Stewart Warner brand fuel sender is compatible with all Stewart Warner and Classic Instruments fuel gauges.

How deep is your tank?
Measure the depth of your tank where the fuel sender arm will be located. Choose the sender with an operating range which includes that dimension.

Right or Left-swing arm?
Most fuel gauge senders attach with a 5-screw pattern. Two of these screws are farther apart than the other three. Position yourself such that the 2 wider-spaced holes are closest to your chest; a right side sender will have the arm (or "float") extending to your right, and a left side sender will have the arm extending to your left. This only matters when replacing an existing sender. A first-time installation can use either one, just drill the mounting holes accordingly.

LH/RH Swing Guide (Link)

OHM
The OEMs used several different resistance ranges for fuel level indication over the years. However, some of the aftermarket gauge manufacturers follow the common Stewart Warner values (240 ohm empty, 33 ohm full). The gauges and senders that we carry (385 & 391’s) use these standard Stewart Warner values.

Ohms Chart (Link)
Installation Instructions (PDF)

Item Details

Requires a 1-7/16" hole in the tank for minimum/maximum of 1-5/8".

Customer Reviews

Rated 4.5 out of 5 by 2 reviewers.
RATING BREAKDOWN
2 reviews
5 Stars
1
4 Stars
1
3 Stars
0
2 Stars
0
1 Star
0
RECOMMEND THIS PRODUCT:

Junkman55
Verified Purchaser
Easton, MD 21601, USA

great product

September 03, 2014
Great product, great company. Parts were shipped fast hope to do more business with Speedway.
Pros:
  • speedway has a lot of parts
Cons:
  • have not found any yet.
Yes, I recommend this product.
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Link X
Verified Purchaser
St Paul,MN

Nice unit, good instructions

September 28, 2010
esy to install but I could have used a templet to mark the holes for drilling & tapping for the screws. Looks like a good unit, I havent hooked it up yet but did install in my tank.
Pros:
  • Clear Instructions
  • Easy To Set Up
Yes, I recommend this product.
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Page 1 of 1

Product Q&A

1 questions : 2 answers

2 answers

WHAT OHMS IS THIS SENDER

June 27, 2011

WHAT OHMS IS THIS SENDER

Answers

September 04, 2014
Junkman55
240
June 28, 2011
Jason
This sender has an OHM rating of 240 OHM empty and 33 OHM full
Page 1 of 1

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This sender is for fuel gauges from Classic Instruments, Stewart Warner, Autometer, and Sun. 240 Ohms empty, 33 Ohms full. It will work in tanks from 6" to 24" deep and it has a right-hand and a left-hand swing functionality.

LH/RH Swing Guide (Link)

Ohms Chart (Link)

Stewart Warner 385B-F L Swing 6-12 Fuel Level Sending Unit 240/33 Ohm
(Part #665385B)
                        

Choosing a fuel level sender:

What brand of gauge will you use?
Speedway carries the excellent Stewart Warner brand of fuel senders. They are compatible with all Stewart Warner and Classic Instruments fuel gauges.

How deep is your tank?
Measure the depth of your tank where the fuel sender arm will be located. Choose the sender with an operating range which includes that dimension.

Right or left-swing arm?
Most fuel gauge senders attach with a 5-screw pattern. 2 of these screws are farther apart than the other 3. Position yourself such that the 2 wider-spaced holes are closest to your chest; a right side sender will have the arm (or "float") extending to your right, and a left side sender will have the arm extending to your left. This only matters when replacing an existing sender. A first-time installation can use either one, just drill the mounting holes accordingly.

LH/RH Swing Guide (Link) 

OHM
The OEM’s used several different resistance ranges for fuel level indication over the years. However, some of the aftermarket gauge manufacturers follow the common Stewart Warner values (240 ohm empty – 33 ohm full). The gauges and senders that we carry (385 & 391’s) use these standard Stewart Warner values.

Ohms Chart (GIF)

Stewart Warner 385C-F R Swing 6-12 Fuel Level Sending Unit, 240/33 Ohm
(Part #665385C)
                        What brand of gauge will you use?
This Stewart Warner brand fuel sender is compatible with all Stewart Warner and Classic Instruments fuel gauges.

How deep is your tank?
Measure the depth of your tank where the fuel sender arm will be located. Choose the sender with an operating range which includes that dimension.

Right or Left-swing arm?
Most fuel gauge senders attach with a 5-screw pattern. Two of these screws are farther apart than the other three. Position yourself such that the 2 wider-spaced holes are closest to your chest; a right side sender will have the arm (or "float") extending to your right, and a left side sender will have the arm extending to your left. This only matters when replacing an existing sender. A first-time installation can use either one, just drill the mounting holes accordingly.

LH/RH Swing Guide (Link)

OHM
The OEMs used several different resistance ranges for fuel level indication over the years. However, some of the aftermarket gauge manufacturers follow the common Stewart Warner values (240 ohm empty, 33 ohm full). The gauges and senders that we carry (385 & 391’s) use these standard Stewart Warner values.

Ohms Chart (Link)

Stewart Warner 391A-F L Swing 10-15 Fuel Level Sending Unit-240/33 Ohm
(Part #665391A)
                        What brand of gauge will you use?
These Stewart Warner brand fuel senders are compatible with all Stewart Warner and Classic Instruments fuel gauges.

How deep is your tank?
Measure the depth of your tank where the fuel sender arm will be located. Choose the sender with an operating range which includes that dimension.

Right or Left-swing arm?
Most fuel gauge senders attach with a 5-screw pattern. Two of these screws are farther apart than the other three. Position yourself such that the 2 wider-spaced holes are closest to your chest; a right side sender will have the arm (or "float") extending to your right, and a left side sender will have the arm extending to your left. This only matters when replacing an existing sender. A first-time installation can use either one, just drill the mounting holes accordingly.

LH/RH Swing Guide (Link) 

OHM
The OEMs used several different resistance ranges for fuel level indication over the years. However, some of the aftermarket gauge manufacturers follow the common Stewart Warner values (240 ohm empty, 33 ohm full). The gauges and senders that we carry (385 & 391) use these standard Stewart Warner values.

Ohms Chart (Link)
Installation Instructions (PDF)

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Sending unit for Omega Kustom fuel level gauges. Will work in tanks from 6" to 24" deep. It can be used as a right hand or left hand swing unit with minor adjustment.

Made in the USA.

Learn more about selecting the proper fuel sending unit by reading our tech article, Fuel Sending Units

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Learn more about selecting the proper fuel sending unit by reading our tech article, Fuel Sending Units
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(Part #2751033)
                        

Classic Instruments Tube Fuel Level Senders are perfect for applications where swing arm senders won't fit due to issues with clearance. These Tube Fuel Senders also provide a more accurate reading than swing arm senders. Compatible with both both gasoline and diesel fuels.

  • 240-33 OHM
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Classic Instruments SN35T11 Fuel Sender Tube, 11 Inch, 240-33 OHM
(Part #2751034)
                        

Classic Instruments Tube Fuel Level Senders are perfect for applications where swing arm senders won't fit due to issues with clearance. These Tube Fuel Senders also provide a more accurate reading than swing arm senders. Compatible with both both gasoline and diesel fuels.

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Includes new sending unit gasket and five screws and lock washers. Steel construction.

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If you have a 1935-1956 Ford car or pickup with a big 6 hole fuel sending unit, how do you put an aftermarket 5 hole sending unit in your tank? Simple. Use this adapter plate. Hardware included.