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FT-90 Fuel Flow Transducer
FAA Approved Instrument
- FAA TSO’d and STC’d with EI Instruments
- For 350 to 550 HP engines, or gravity-feed engines.
- Gold anodized aluminum body, 5.3 ounces.
- 1/4″ female NPT, 1.375 in. (H) x 1.620 in. (W) x 1.90 in. (L)
- 3 to 125+ GPH, .05 PSI drop at 20 GPH, .2 PSI drop at 40 GPH
Have a gravity fed engine?
Take a look at our FT-60, engineered for engines with an engine-driven fuel pump. See below for more details.
Questions?
8am–4:30pm PST M–F
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Product Overview
Model Comparison
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| Model | FT-60 | FT-90 | FT-180 |
| Engine Type | Up to 350 HP engines, engine driven fuel pumps only. | 350-550 HP engines, gravity fed engines. | 550 HP+ engines, engine driven fuel pumps only. |
| Fuel Flow | .6 to 70+ GPH | 2 to 125+ GPH | 2 to 250+ GPH |
| Connection | 1/4″ female NPT | 1/4″ female NPT | 1/4″ female NPT with #8 male flare adapters |
| Typical Use | Piston with Fuel Pump | Piston Gravity Fed | TurboProp |
| Specifications | Download Info Sheet | Download Info Sheet | Download Info Sheet |
Prices
Retail Prices
Packages include:
- FT-90 Transducer
- OLC-2 Connectors (3)
- Installation Instructions
Description
Package
Retail Price
FT-90 Fuel Flow Transducer
FT-90
$388

Specifications
Videos
Documents
Documents & Manuals
Testimonials
Customer Testimonials
So far, great product
- Customer
Stephen L. from New York
- Aircraft
Cessna 172L
- EI Instrument
Have had EI instruments in my past plane and current plane and they always performed flawlessly.
- Customer
Gary M. from California
- Aircraft
Cessna 182Q Skylane
- EI Instrument
I really appreciate the quality of communication about my order. The instrument offers the right functionality (being a primary instrument) in the right form factor for my application.
Good equipment at a good price. I have used your products before and have had great success.
- Customer
Ryan M. from Oregon
- Aircraft
Cessna 172L
- EI Instrument
The display is large and clear. The functions are simple and easy to use. Great purchase decision.
Keep it up. I’ll keep coming back.
Beautiful graphic display, easy to use, perfect automatic dimming!
- Customer
Ryan G. from Washington
- Aircraft
Luscombe Model 8E Silvaire Deluxe
- EI Instrument
. . . looks really good! Friends have these installed and give very good reviews.
- Customer
David W. from Arizona
- Aircraft
Cessna 150
- EI Instrument
Very happy with our new tachometer!
It works very well; easy operation.
- Customer
Socrates K. , Cyprus
- Aircraft
Cessna F172H
- EI Instrument
EI’s products are the only ones we recommend to our customers.
- Customer
Hugo T. from Florida
- Aircraft
Cessna 177B
- EI Instrument
