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AEM 340LPH In Tank Fuel Pump Kit - Ethanol Compatible (AEM 50-1200)

Upgrade your fuel system with the AEM 340LPH High Flow In-Tank Fuel Pump Kit, part number 50-1200. Designed for high-performance naturally aspirated and forced induction applications, this compact fuel pump delivers increased fuel flow for vehicles requiring more fuel capacity than the factory pump can provide.

The AEM 50-1200 is compatible with gasoline and ethanol-based fuels, making it a versatile option for performance builds running conventional gasoline or ethanol blends. Its compact in-tank design is similar in physical size to many OEM fuel pumps, allowing it to work with a wide range of properly sized fuel pump assemblies.

Fuel system requirements vary significantly based on horsepower, boost pressure, fuel type, base fuel pressure, injector size, and other modifications. Always verify that the 340LPH flow capacity and physical dimensions are appropriate for your specific vehicle and performance goals before ordering.

Key Features

  • 340 LPH high-flow in-tank fuel pump
  • Designed for high-performance fuel systems
  • Compatible with gasoline and ethanol-based fuels
  • Suitable for naturally aspirated and forced induction builds
  • Compact design similar in size to many OEM fuel pumps
  • Supplied electrical connector included
  • AEM part number 50-1200

Important Electrical Installation Note

Before powering the fuel pump, verify the polarity of the factory electrical connector inside the fuel tank. If the vehicle's connector polarity does not match the AEM pump, the connector must be properly re-pinned, or the supplied AEM electrical plug must be used.

Incorrect polarity can cause improper pump operation. Always verify the electrical connections before completing installation.

Fuel Pump Sizing & Fitment

Although this AEM High Flow Fuel Pump is physically similar in size to many OEM fuel pumps, that does not guarantee compatibility with every vehicle or fuel system.

AEM recommends verifying fuel pump sizing and application requirements before purchasing. Vehicle application guides should be treated as a reference only. Your required fuel flow should be determined based on the engine's power level, fuel type, fuel pressure, and complete fuel system configuration.

AEM does not recommend modifying the fuel tank to accommodate a High Flow Fuel Pump and cannot guarantee pump performance or operation if the fuel tank is modified for installation.

Installation Recommendations

  • Confirm fuel pump dimensions before installation
  • Verify required fuel flow for your horsepower and fuel type
  • Verify electrical connector polarity before powering the pump
  • Re-pin the factory connector or use the supplied connector when required
  • Do not modify the fuel tank to force pump fitment
  • Professional installation is recommended for modified fuel systems

Technical Resources

AEM 50-1200 Installation Instructions

AEM Warranty Information

Why Buy AEM from JD Customs USA?

JD Customs USA is a trusted source for performance fuel system components, giving enthusiasts access to genuine AEM fuel pumps and supporting components for street, track, and high horsepower builds.

Selecting the correct fuel pump is critical to building a properly functioning fuel system. JD Customs USA provides clear product information and knowledgeable enthusiast support to help customers understand pump sizing, fuel compatibility, and installation requirements before ordering.

  • Genuine AEM performance products
  • Detailed fuel pump specifications and installation information
  • Support for gasoline and ethanol-fueled performance builds
  • Knowledgeable support for modified vehicles
  • Secure ordering from an established performance parts retailer

New Unused Product Returns:

Your complete satisfaction is our priority. If an item purchased from aemelectronics.com does not meet your expectations, it may be eligible for return.

  • You may return new, unused parts within 90 days from the purchase date for a complete refund or exchange. To avoid a restocking fee, you must request a return within 60 days of purchase date, and AEM must receive the returned items within 90 days after purchase date.
  • Parts not eligible for return: Clearance items, Factory Refurbished Items, and Made to Order items.
  • Items returned 91-180 days after the date of purchase will be subject to a 15% restocking fee
  • Items are not eligible for return after 180 days unless there is a valid warranty issue and submission. The product must be in the original, manufacturer's box and must be sent freight prepaid
  • Products that show signs of excessive age, abuse, improper handling, or have been modified beyond AEM’s instructions may be rejected and incur an inspection fee regardless of age
  • Original shipping charges are non-refundable

AEM Performance Electronics Limited Warranty

AEM Performance Electronics (“AEM Electronics”) warrants to the original consumer that all AEM Electronics Products will be free from defects in material and workmanship under normal and proper use for a period of 90 days from the date of the original purchase.

For purposes of illustration, but not limitation, the following are not defects in material or workmanship: (a) normal wear and tear and/or required maintenance; (b) improper handling, storage, installation, lubrication or maintenance; (c) damage resulting from or related to misuse (including use in a way other than those applications recommended by AEM), abuse, unauthorized modification or alteration, incorrect polarity (+&- wires crossed), accident, acts of God, or external causes; and (d) cosmetic damage (nicks, bruising, discoloration).

EXCEPT WHERE PROHIBITED BY LAW, THIS WARRANTY IS EXCLUSIVE AND THE ONLY WARRANTY APPLICABLE TO THE PRODUCT. IT IS OFFERED EXPRESSLY IN LIEU OF ANY OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, ALL OF WHICH ARE DISCLAIMED.

Limited Remedies: If a Product fails because of a defect in material and/or workmanship within this limited warranty period, AEM will repair or replace the Product at no cost to the customer. This warranty is limited to the repair or replacement of the AEM Electronics Product. In the event of a defect, to the extent permitted by law, these are the customer's sole and exclusive remedies.

Incidental and Consequential Damage Disclaimer: EXCEPT WHERE PROHIBITED BY LAW, AEM ELECTRONICS DISCLAIMS AND UNDER NO CIRCUMSTANCES SHALL BE LIABLE FOR SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR LOSSES RESULTING FROM THE USE, MISUSE, OR INABILITY TO USE THE PRODUCT AS WELL AS ANY BREACHES OF THIS WARRANTY OR ANY IMPLIED WARRANTY REGARDLESS OF THE CAUSE AND EVEN IF THE CLAIMED DAMAGES OR LOSSES WERE CAUSED BY A WARRANTABLE DEFECT.


This warranty applies only to the original purchaser of the Product and is non-transferable, except as prohibited by applicable law.


In no event shall this warranty exceed the original purchase price of the AEM Electronics Product.


Warranty returns will only be accepted by AEM Electronics when accompanied by a valid Return Merchandise Authorization (RMA) number and a dated proof of purchase.


Please note that before AEM Electronics can issue an RMA for any Product, it is first necessary for the installer or end-user to contact our technical support team to discuss the problem. Most issues can be resolved over the phone. Under no circumstances should a Product be returned, or an RMA requested before our support team is contacted. This will ensure that if an RMA is needed that our team is able to track your Product through the warranty process.


PRODUCTS OUTSIDE OF WARRANTY PERIOD

Most AEM Electronics Products, excluding discontinued products, can be replaced (at a discounted rate) following documentation of the faulted item being field destroyed. A valid Return Merchandise Authorization (RMA) number must be issued by the Support Team before a transaction for Product replacement can occur.

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**AEM (Advanced Engine Management)** is a premier brand specializing in high-performance automotive parts and electronics. Known for innovation and quality, AEM offers a wide range of products, including air intake systems, fuel management systems, and engine tuning solutions. Designed to enhance performance and reliability, AEM products are trusted by enthusiasts and racers worldwide for pushing the limits of what's possible on the street or track.

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