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Description
Aem 400 Lph Fuel Pump Kit - Single Barb-50-1235AEM's 400LPH high flow fuel pumps were designed with high performance naturally aspirated and forced induction EFI vehicles in mind! They deliver the same high flow and reliable performance that AEM has become known for at very competitive price. Each pump is individually flow tested and guaranteed to flow 400+ LPH (106 GPH) at 40 PSI (13. 5V), which on gasoline will support 1000+ horsepower!* The pumps also maintain their high flowrate even as system
AEM's 400LPH high flow fuel pumps were designed with high performance naturally aspirated and forced induction EFI vehicles in mind! They deliver the same high flow and reliable performance that AEM has become known for at very competitive price. Each pump is individually flow tested and guaranteed to flow 400+ LPH (106 GPH) at 40 PSI (13.5V), which on gasoline will support 1000+ horsepower!* The pumps also maintain their high flowrate even as system pressure increases flowing 330+ LPH at 70 PSI (13.5V) which will support approx. 870 HP* on gasoline! Please see the flow curves and current draw vs. fuel pressure graphs on the specs tab for more information. With their compact 39mm body (same size as Walbro 255), low amperage draw, 11mm inlets and 9mm barbed outlet's these fuel pumps were designed to replace the OEM fuel pump in many applications. The 50-1230 features a double barbed outlet that is ideal for 3/8-inch ID hose where the 50-1235 features a smooth barbed outlet that is compatible with 5/16-inch ID hose. Each pump includes a wiring harness, pre filter, internal fuel hose and clamps, end cap and rubber buffer sleeve. Note: Your vehicle's factory fuel pump wiring may not be adequate to handle the current draw of AEM's High Flow Fuel Pumps. Please refer to the Electrical Requirements section in the instructions document for proper wiring. Note: These pumps do not include integrated check valves.
Features:
- Highest flow 39mm body fuel pump on the market. Each pump individually flowed and guaranteed to deliver 400+ LPH (40 PSI, 13.5V)
- Maintains very high flow even at boosted fuel pressures; 330+ LPH (70 PSI, 13.5V) (30 psi boost)
- 100% Compatible with most fuels including: pump/race gasoline, ethanol (up to E100), methanol (up to M100)
- Highly efficient – pumps draw only 12A @ 40 PSI and 15A @ 70 PSI
- Both models feature a 9mm outlet barb with an 11mm inlet in-line with the outlet
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.5 ★★★★★
Based on 10 reviews
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Product Reviews
★★★★★ 4
Do one oil change myself and it’s more than paid for.
Color: Silver, Color: Silver
It is 74 mm. It’s nicely made of cast aluminum. It has a rough cast finish so it shouldn’t be difficult to hold on to. It does fit my Lexus filter and the price is very reasonable. It also fits the oil filter on my 1999 (antique) Harley Davidson Heritage Classic. Which is the primary reason I ordered it. I don’t know this for certain but I suspect it will fit all HD EVO engines. That would be 1984 through 1998 except the Heritage which didn’t change to the 88 Twin Cam until 2000.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 18, 2025
★★★★★ 1
Didnt fit my C300
Color: Silver
Didn’t fit my 2008 Mercedes C300 4matic sport.
I bought another one on Amazon from a different company and it did fit. Eochi or something brand.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 6, 2025
★★★★★ 1
Does not fit Boxster. Not even 74mm
Color: Silver
This is not measuring 74mm and absolutely does NOT fit my 2003 Porsche Boxster like the Amazon compatible check says it does.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 9, 2025
★★★★★ 1
Amazon Vehicle Tool Parts Fitting App incorrect
Color: Silver
Amazon your Vehicle fit is Wrong this tool will not work at all on 1981 240D Mercedes oil filter
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 24, 2025
★★★★★ 5
Fits perfect
Fits perfect in 2018 x5
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Reviewed in the United States on May 10, 2026
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