AEM E85 High Flow In-Tank Fuel Pump


13 reviews

This product is currently out of stock.

The AEM E85 Fuel Pump is a universal install pump designed for in-tank installation on high performance naturally aspirated and forced induction vehicles. It flows 320 lph (84 gph) at 43 PSI (please refer to the chart for fuel pump horsepower versus pressure for various applications and fuel types).

AEM’s E85 Fuel Pump features robust internal construction that is designed to withstand the low lubricity characteristics of ethanol and methanol fuels, and has been tested to work with ethanol fuels up to E100, methanol fuels up to M100 and all types of gasoline.

The AEM E85 Fuel Pump features a compact 39mm diameter that fits most applications. It features an offset inlet design that eases installation and includes a wiring harness, pre filter, internal fuel hose and clamps, end cap and rubber buffer sleeve. Every AEM E85 Fuel Pump is tested to flow 320 lph at 43 PSI before it is packaged for sale.

AEM High Flow-in Tank Fuel Pump Features: 

  • Tested and compatible with ethanol fuels up to E100, methanol fuels up to M100 and all types of gasoline. 
  • Designed for high output naturally aspirated and forced induction EFI vehicles. 
  • In-tank design.
  • Each pump is tested to flow 320 mph @ 43 PSI.
  • Offset inlet design eases installation.
  • Kit includes: fuel pump, rubber sleeve and end caps, pre filter hose, clamps and flying lead.

3.8L Note: the stock OEM pump will generally support up to 350whp. 

1.4 L T Note: the stock OEM pump will generally support up to around 350whp. 

Does not work with 3800 vehicles with Venturi Port without custom Venturi fitting 

Customer Reviews
4.9 Based on 13 Reviews
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David N.
United States United States
None better for 3800's

Simply the best!

Robert H.
United States United States
AEM E85 Pump

The AEM E85 pump is a great upgrade. Noticed a big performance difference when using E85 and having the car tuned for it. Thanks zzperformance.

Alex C.
United States United States
Absolutely worth it

I was beyond maxing out my stock fuel pump with 60lb injectors at a 91% duty cycle and this pump (along with a fuel pressure raise to 58psi) brought the duty cycle down to 70%! I've got so much more headroom for boost now and to top it off the new pump is quieter than stock. A couple downsides in my case. I had to hack up my fuel basket to install this, and the included hose was not long enough and didn't seem of good quality, it was unbranded and had no markings whatsoever. I would recommend getting some quality 8mm fuel hose if you decide to purchase this. I have an aftermarket basket so you will probably not have to do this with yours if you have a stock unit. I would recommend this pump to anyone making over 350hp or looking into alternative fuels.

Andrew L.
United States United States
AEM 340LPH Fuel Pump

Experience with the pump is great. The pump is just as quiet as the stock pump. Installed the pump and everything was going good for about a month to month and a half. My LSJ on 80lb Deka EV1 injectors ran great. One day,it stopped getting fuel. I dropped the tank a 2nd time to find the hose that came with the AEM fuel pump blew a hole out the side of it. The hose is not for fuel injection. Napa Auto parts told me the hose is not rated for fuel injection. I bought a section of fuel injection hose at my local auto parts and fuel injection clamps and re-installed the pump into my tank and put the tank back into the car and its been running great ever since. The pump definitely help the fuel system get way more fuel. Next step is to install a return style fuel system on my LSJ.

Patrick J.
Feeling Fuelish

I have not installed the pump yet, but I am excited about having it,and I am looking forward to completing my project and pressurizing my fuel system with this pump.