BMW E60 N54 Stage 2.5+ LPFP Upgrade - DW400 Fuel Pump - 700 WHP

BMW E60 N54 Stage 2.5+ LPFP Upgrade - DW400 Fuel Pump - 700 WHP

OneFastShop SKU: E6X-N54STG2.55
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Upgrade your BMW E60 N54 fuel system with the OneFastShop Stage 2.5+ Low Pressure Fuel Pump (LPFP) assembly. This drop-in replacement swaps the restrictive OEM fuel bucket for a complete E85-compatible unit built around the high-output DeatschWerks DW400 pump - delivering the fuel volume needed to support up to 700 WHP. Direct replacement for BMW OEM part #16117373521, with plug-and-play installation and zero wiring modifications required.

Specifications

Part Number E6X-N54STG2.55
Pump DeatschWerks DW400
OEM Replacement BMW #16117373521
Max Power Support 700 WHP
Fuel Compatibility 91-93 octane, E85, ethanol blends, methanol injection
Installation Plug-and-play, no wiring required
Application Stage 2+ tunes, methanol injection, and ethanol blends

Fitment

Year Make Model Chassis Engine
2008-2010 BMW 535i E60 N54
2008 BMW 535xi E60 N54
2009-2010 BMW 535i xDrive E60 N54

What's in the Box

  • Complete fuel bucket assembly with DeatschWerks DW400 pump pre-installed
  • Top hat and float assembly
  • DeatschWerks fuel filter
  • Fittings and O-ring

EKP Compatibility Notice

Upgraded pumps draw more current than stock, so if you're on a weak or aged EKP2, it may overheat and shut down. We recommend upgrading to an EKP3.

Installation Notes

Required tool: A fuel pump lock ring removal tool is required for installation. Our Fuel Pump Lock Ring Removal Tool for BMW E-Chassis and MINI is available separately - add it to your order from our store.

Read before you buy. These guides cover fitment, what to expect, and how to install.

Shipping

  • Orders placed before 3 PM EST typically ship the same business day. Larger items ship within 1 to 3 business days.
  • Standard, expedited, and overnight options at checkout.
  • Oversized items ship by freight and take longer.
  • Special order items follow a lead time we confirm with you individually before the order is committed.
  • Backordered items ship as soon as stock lands. Lead times are manufacturer estimates and can change. Contact us for current ETAs.
  • Need to cancel? Email us right away. Cancellations are not guaranteed once an order is in process. In-stock orders cancel free before they ship; a 6% fee applies only to confirmed backorders and special orders.
  • International orders: prices do not include VAT, duties, or import fees. Your country charges these at import and they are the buyer’s responsibility.

Returns

  • 30 days from delivery to request and ship back a return on new, uninstalled items in original packaging with all hardware.
  • Standard returns: 8% restocking fee on the item price before tax and shipping. Shipping is not refunded in either direction. All waived if the item is defective or we made the error.
  • Fitment guaranteed: select your vehicle above, or confirm fitment with us in writing before you order. If the part shows as a fit and it is wrong, the return is on us, even after installation. Otherwise, installed or used parts cannot be returned.
  • Final sale: special orders, coilovers, electronics, engine internals, turbochargers, superchargers and turbo kits, unless defective or we sent the wrong item.
  • Product images may be representative. The SKU and specifications in the listing are what ships.
  • Email us for return authorization before shipping anything back.

Full details: Shipping Policy · Returns & Refunds · Warranty
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