DW 300c Fuel Pump DeatschWerks Installation guide

DW
Brand
DW
Model
300c Fuel Pump DeatschWerks
Type
Installation guide

DW 300c Fuel Pump DeatschWerks is a high-performance fuel pump designed to meet the demands of modified engines. It features a compact design that fits easily into the factory fuel pump assembly, and it is compatible with a wide range of fuels, including gasoline, E85, and methanol. The DW 300c is capable of flowing up to 340 liters per hour, making it suitable for high-horsepower applications. It also features a robust design that is resistant to wear and tear, and it comes with a one-year warranty.

Here are some of the benefits of using the DW 300c Fuel Pump DeatschWerks:

  • Increased fuel flow for improved engine performance

DW 300c Fuel Pump DeatschWerks is a high-performance fuel pump designed to meet the demands of modified engines. It features a compact design that fits easily into the factory fuel pump assembly, and it is compatible with a wide range of fuels, including gasoline, E85, and methanol. The DW 300c is capable of flowing up to 340 liters per hour, making it suitable for high-horsepower applications. It also features a robust design that is resistant to wear and tear, and it comes with a one-year warranty.

Here are some of the benefits of using the DW 300c Fuel Pump DeatschWerks:

  • Increased fuel flow for improved engine performance
DeatschWerks
2003-2004 Ford Mustang SVT Cobra DW65c and DW300c Fuel Pump Installation Guide
1
9-651-1033, and 9-307-1033
2003-2004 Ford Mustang SVT Cobra “Terminator”
DW65c and DW300c Fuel Pump Installation Guide
DeatschWerks
2003-2004 Ford Mustang SVT Cobra DW65c and DW300c Fuel Pump Installation Guide
2
Table of Contents
Important Notes ………………………………….……….……………………………………. Page 3
Suggested Tools ……………………………….….……………….……………………………. Page 3
Module Disassembly ………………………..….……………….……………………………. Page 4
Pump Install ……………..……………………….….………….………….……………………. Page 6
Flushing and Priming …………………………….……………………………………………. Page 8
Parts List:
• DW65c or DW300c (x2)
• Fuel Sock (x2)
• Pinch Style Hose Clamps (x5)
• 4” Long Convoluted Fuel Tube (x2)
• Electrical Connectors w/Pins (x2)
DeatschWerks
2003-2004 Ford Mustang SVT Cobra DW65c and DW300c Fuel Pump Installation Guide
3
PLEASE READ – this guide is intended to aid in the installation of our products. It is recommended that factory
manuals or instructions are followed to remove the fuel pump assembly from the vehicle. Some instructions
in this guide are generic. The factory manual should supersede any contradiction.
NOTE: The convoluted fuel tubes included in this kit are specially designed for the 03-04 Mustang Cobra, one
end is slightly larger than the other. The smaller end is designed for the fuel pump, and the larger end is
designed for the plastic Y-fitting.
Do not use other generic rubber hoses for install, they can leak, split and harden causing fuel pressure issues.
The fuel pumps are specially modified for the factory Ford electrical connector as well. The factory pumps and
connector have a notch and tab that aligns them.
Below is a picture of suggested tools that will make the installation process easier.
DeatschWerks
2003-2004 Ford Mustang SVT Cobra DW65c and DW300c Fuel Pump Installation Guide
4
1 – Remove the 9/32” screw that secures the pumps to the module with the band strap. Remove the band
from the module, it is hooked in on the opposite side, slightly unbend the band then unhook the loop.
2 – Unplug the factory electrical connectors, it may be easier to use a small flat head screwdriver or a pick tool
to depress the latch due to the crowded nature of the module.
DeatschWerks
2003-2004 Ford Mustang SVT Cobra DW65c and DW300c Fuel Pump Installation Guide
5
3 – Here you can see the special guide that is specific to some of the OEM 2003-2004 Mustang Cobra modules.
If your module has this connector, you can de-pin and replace it with the supplied connector.
4 – Using a pick or small flat blade screwdriver depress the locking tab and remove the factory pins from the
special notched connector, make sure to keep the wires in the same spots or the pumps will spin backwards.
DeatschWerks
2003-2004 Ford Mustang SVT Cobra DW65c and DW300c Fuel Pump Installation Guide
6
5 – If necessary, pry the locking tab outwards slightly so it latches firmly in the new DW supplied connector.
Insert the factory wires into the DW connectors like shown.
6 – Remove the factory convoluted tubes from the top of the Y-Fitting. This is typically done with a knife, take
care not to damage the fitting under the tubing. Once loose remove the pumps from the module.
DeatschWerks
2003-2004 Ford Mustang SVT Cobra DW65c and DW300c Fuel Pump Installation Guide
7
7 – Separate the fuel socks and the rubber isolators from the factory pumps, you will be re-using the isolators
but not the filter socks. Slide the filter socks onto the Deatschwerks pumps and attach the supplied white
rectangle filter socks, secure them in place with the supplied star washers.
8 – The supplied convoluted fuel hose has different sized openings at each end. The smaller end is designed
for the Deatschwerks fuel pump, slip it on and secure it with one of the supplied hose clamps, repeat this on
both fuel pumps.
NOTE: Use only the supplied convoluted tubing, using incorrect rubber fuel hose can lead to fuel leaks.
DeatschWerks
2003-2004 Ford Mustang SVT Cobra DW65c and DW300c Fuel Pump Installation Guide
8
9 – Install the larger end of the hoses onto the factory black plastic Y-Fitting and secure them with the
remaining supplied hose clamps.
10 – Plug the factory connectors back into the pumps, due to the special notch that’s been added to the
Deatschwerks pumps the factory connectors plug directly into the new pumps. Re-install the factory band
strap onto to the module, hook the end through the eyelet on the module and secure with the OEM 9/32”
screw.
DeatschWerks
2003-2004 Ford Mustang SVT Cobra DW65c and DW300c Fuel Pump Installation Guide
9
11 – Reinstall the assembly into the fuel tank and attach a length of hose to the outlet of the pump assembly
allowing it to drain into a fuel safe container and prime the fuel pump assembly
12 – Crank the engine for a period long enough to prime the pump assembly and evacuate the air introduced
during the pump installation process
13 – Attach supply line to the outlet of the pump assembly
For additional technical support please contact us at: TechSupport@Deatschwerks.com or 405.233.3991
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DW 300c Fuel Pump DeatschWerks Installation guide

DW
Brand
DW
Model
300c Fuel Pump DeatschWerks
Type
Installation guide

DW 300c Fuel Pump DeatschWerks is a high-performance fuel pump designed to meet the demands of modified engines. It features a compact design that fits easily into the factory fuel pump assembly, and it is compatible with a wide range of fuels, including gasoline, E85, and methanol. The DW 300c is capable of flowing up to 340 liters per hour, making it suitable for high-horsepower applications. It also features a robust design that is resistant to wear and tear, and it comes with a one-year warranty.

Here are some of the benefits of using the DW 300c Fuel Pump DeatschWerks:

  • Increased fuel flow for improved engine performance
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