Aeromotive 11140 INSTALLATION INSTRUCTIONS

11140, 11141, 11142 & 11169 INSTALLATION INSTRUCTIONS

WARNING!

The fuel system is under pressure. Do not open the fuel system until the pressure has been safely and
sufficiently relieved. Please refer to the appropriate vehicle service manual for the procedure and precautions
necessary to relieve fuel system pressure safely.

To use this pump in your vehicle’s fuel system, we recommend the following:

• The factory fuel pump wiring may not be sufficient to handle the current draw of the Aeromotive 340

Stealth pump. To achieve the advertised flow at pressure, the use of an aftermarket wiring kit such as

Aeromotive P/N 16301, including 10-gauge wire and a direct alternator supply point, is required.

• If you use the existing electrical plug in your tank you must ensure that the polarity is correct for your new

pump. If necessary, re-pin the existing plug or use the included plug with solder and shrink connections.

• The Aeromotive 340 Stealth pump is the same physical size as many OEM in-tank pumps. This does not

necessarily mean it is suitable for a particular application. Consult the Aeromotive application guide first

to determine if a 340 Stealth Pump is recommended for your car, before proceeding with installation.

• With the high flow rate of the Aeromotive 340 pumps, the fuel pump basket or integral in-tank baffling may

require modifications to allow sufficient inflow from the main tank. Failure of the basket or baffling to

remain full of fuel during high engine load may significantly impede the pump’s performance.

• Installing a new factory down-stream filter is HIGHLY recommended when installing this pump, and it

should be monitored and serviced as needed to ensure fuel pump performance and service life.

• Your new Aeromotive 340 Stealth Fuel Pump is only one component part of your automobile’s complete

fuel system. You must ensure the complete fuel system is up to the task of supplying fuel to your engine,

or severe engine damage may result. Contact Aeromotive if you have questions regarding how to

address your complete fuel system, should you have the need.
Failure to follow the above may result in fuel leakage, bursting of the fuel lines, poor vehicle performance and/or

decreased fuel pump life! Improper installation will void all warranties for this product!

CAUTION:

Installation of this product requires detailed knowledge of automotive systems and repair procedures. We
recommend that this installation be carried out by a qualified automotive technician.

Installation of this product requires handling of gasoline. Ensure you are working in a well ventilated area
with an approved fire extinguisher nearby. Extinguish all open flames, prohibit smoking and eliminate all sources
of ignition in the area of the vehicle before proceeding with the installation.

Compatible Fuels:

Pump Gas; Race Gas; E85*

• Due to the dielectric properties of Alcohol fuel like E85, fuel pump service life will be reduced and filter

maintenance increased. Be certain alcohol compatible filters are installed and frequently maintained.

APPLICATION INFORMATION

Aeromotive has published specific application information informing what known vehicles have
a fuel pump form-factor that is compatible with the new Aeromotive 340 Stealth pumps. Please find
this application guide on our website at www.aeromotiveinc.com under the Tech Help folder tab and
linked on the 340 Stealth Fuel Pump product pages. Further detailed information is available on our
website in the 340 Stealth Pump FAQ section, located under the “Tech Help” folder tab.

For those familiar with purchasing aftermarket fuel pumps to for installation as a replacement
for the stock fuel pump, selecting the correct 340 Stealth pump is easy. Note P/N’s 11140, 1114, 11142
and 11169 are configured as universal, in-tank replacement pumps, and feature the same form-factor
(external dimensions) as 4 popular 255 LPH fuel pumps commonly sold under P/N’s GSS340, GSS341,
GSS342 and 111169 respectively. There are many applications where these common, 255 LPH pumps
are used effectively in the stock tank, without major modifications, and those same applications may
work as well with the new Aeromotive 340 Stealth Pumps.

To ease the determination of which Aeromotive 340 Stealth pump may be used as an
alternative, note the last 2-digits of the 340 Stealth Series part numbers correspond to the last two
digits of the 4 common, 255 LPH pumps. For those that know which of the 255 LPH pumps will work
in their tank, simply select the Aeromotive 340 Stealth pump with the same last 2-digits. For example,
the 255 LPH GSS340 and the Aeromotive 11140 will have similar form-factor and application.

There are many applications where the Aeromotive 340 Stealth Pumps (and the same form­factor 255 LPH pumps) will not work as a direct replacement. In these cases it is likely that some
modifications have been made to the tank, the internal basket or baffling, and/or the fuel level sending
unit to perform the installation. Aeromotive neither sanctions or approves any modifications be made
inside the tank to install one of these pumps, and any modifications that are made are done so at the
sole discretion of the purchaser/installer, with no guarantee of pump performance, service life, or
assurance of compatibility made by Aeromotive.

Aeromotive 11140, 11141 & 11142 Flow Chart (13.5V)

Aeromotive 340 Stealth Current Draw (Amps)

450
400
350
300
250
200

Flow Rate (lph)

150
100

50

0

5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

Pressure (psi)

20
18
16
14
12
10
8
6

Current Draw (Amps)

4
2
0