Why Replacing the Complete Fuel Pump Module Matters
The WJ fuel system depends on stable fuel pressure (PSI) and proper communication between the pump and the fuel level sender. Replacing only the pump motor while leaving worn internal components behind often leads to repeat failures and inaccurate fuel readings.
The E7127MN assembly includes:
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High-pressure electric fuel pump
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Fuel level sending unit
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Pre-filter strainer (sock)
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Internal pressure regulation components
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OE-style housing and electrical connectors
One install. One repair. No guesswork.
Performance & Drivability Benefits
Whether you’re running the legendary 4.0L or the torquey 4.7L V8, weak fuel delivery shows up fast—especially under load or during hot starts.
Replacing the fuel pump assembly:
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Restores factory fuel pressure
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Improves cold and hot starts
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Eliminates hesitation and lean conditions
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Stabilizes injector operation
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Fixes inaccurate or erratic fuel gauge readings
It won’t make your Grand Cherokee faster—but it will make it dependable again. Which matters more.
Product description
Safety & Installation Notes
Fuel pumps operate submerged in gasoline for cooling and lubrication. As pumps age, they draw more current, generate excess heat, and stress wiring and seals—common issues on older WJs.
Best practices:
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Disconnect the battery before installation
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Relieve fuel system pressure
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Replace the fuel filter after install
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Avoid consistently running the tank below ¼ full
This unit is vehicle-specific and plug-and-play, using factory mounting points and connectors. No cutting. No splicing. No universal nonsense.
Compatible with following Models:
- 1999-2004 JEEP GRAND CHEROKEE V8-4.7L
- 1999-2004 JEEP GRAND CHEROKEE L6-4.0L
Strict Quality Control:
All of A ABIGAIL pumps undergo strict quality control not just before shipping but throughout the production process. During each step of production multiple quality control checks are performed to insure each and every part lasts for years to come.
Recommended owner:
- 1. Keep the habit of refueling the car in time, don’t wait until the oil lamp is bright to add
- 2. Choose high quality car gasoline
- 3. Timely cleaning or replacement of gasoline filter
Please be attention:
- Always clean the cover and the outside and inside tank, replace the old strainer and fuel pipe.
- Replace the old fuel with clean standard fuel which you can get from the gas station.
- Vehicle should be filed with full tank fuel before parking for a certain long time.
- Replace the filter on a regular basis.
When you need replace your fuel pump?
- Vehicle makes high pitched sound when the engine is first engaged.
- Sudden trouble accelerating.
- Low fuel pressure.
Professional Service.
Installing parts on you vehicle can be difficult and we understand, If you have any problems with the pumps or the installation process, please feel free to tell us.
Why Buy from Pro Street Online
At Pro Street Online, we focus on parts that actually solve the problem the first time. The E7127MN fuel pump assembly delivers OEM-style reliability at a smart price, making it the right choice for keeping your Grand Cherokee on the road instead of on a tow truck.
David –
It worked perfectly. And fit perfectly.
John Armstrong –
2003 jeep grand cherokee 4.0
Cristian –
👍👍👍
Kristof Anders –
Do yourself a favor, replace filter, lines, rail and injectors at the same time.You will not regret it. She moves like new!
Hogs r us –
I will buy from him again good quality
Beaverstink –
The pump portion worked and vehicle started and runs well. The fuel gauge does not work.. it flops around then shows low. The float and arm simply snapped into place. I double checked the wiring harness and used dielectric grease, still no change.Update: the pump stopped working and left me stranded. I double checked that voltage is going to the pump. I’ll stick to the more expensive Bosch brand pumps going forward.
Justin_carney –
Fuel pump was a perfect fit just like the original. Got my truck back on the road for $60 🙂
Denise Shackelford –
It works well and cost less than half of what the auto part store does I paid 56.00 auto parts store wanted 120.00 but it didn’t even last a year. 😡😡 I purchased it Sept 3rd but it’s July 19th and im waiting for it to come now. If it goes out again I’ll just purchase from auto parts store and get a warranty.
Kristen –
Great
I bought this for my 1999 Jeep Grand Cherokee Laredo and had my mechanic put it in and it has been great! It’s been working properly so far. Highly recommend!
Martín –
se mira bien
llego en buene stado, ya lo puse y al momento bien, en un mes si sigue funcionando bien le cambiare a 5 estrellas!