SKU: 31538580637

BMW F3X & F2X B48 B58 High Performance Fuel Pump (Stage 3, 4, 4.5) - M140i, M240i, 340i, 440i, 330i, 430i

Sale price$583.65 Regular price$648.50
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USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 22 - Jul 27

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Description

BMW F3X & F2X B48 B58 High Performance Fuel Pump (Stage 3, 4, 4.5) - M140i, M240i, 340i, 440i, 330i, 430iThe Precision Raceworks BMW F3x & F2x B58 High Performance Fuel Pump are designed for customers looking to run all blends of E85. These drop in pumps include a Walbro fuel pump capable of flowing up to 300% more fuel than the factory fuel pump and are 100% E85 compliant. Best of all, this pump ships completely assembled and ready to installwe dont even have a core charge. Pump, fuel filter, performance fuel lines, and sending unit included; nothing

The Precision Raceworks BMW F3x & F2x B58 High Performance Fuel Pump are designed for customers looking to run all blends of E85. These drop-in pumps include a Walbro fuel pump capable of flowing up to 300% more fuel than the factory fuel pump and are 100% E85 compliant. Best of all, this pump ships completely assembled and ready to install—we don’t even have a core charge. Pump, fuel filter, performance fuel lines, and sending unit included; nothing extra needed!

By design, a fuel pump such as this is ideal for daily driving and racing applications of all kinds. This system keeps the primary pump fully submerged in fuel regardless of tank level or the g-force the car is subjected to.

Stage 3 (5 Liters per minute)

Our Stage 3 bucketed/bucketless hybrid fuel pump includes all necessary wiring and pump activation switch (hobbs switch). This pump utilizes the OEM brushless pump in the bucket with a Walbro 450 (F90000274) fuel pump outside the bucket. This pump can support up to 900whp! (Rated for 850whp on 100% E85) and is drop-in ready. No wires to cut or splice, nothing to assemble; simply drop the pump system into the tank, insert the factory pump, slide the bucketless bracket onto the side of the bucket, and close the top hat—you are ready to go!

Included in the box:

  • Genuine OEM fuel pump bucket assembly
  • Pre-assembled with OEM Brushless and mounted Walbro 450
  • Includes fuel sending unit (fuel level sensor)
  • Plug and play boost reference harness (zero cutting, stripping, crimping)
  • 13psi boost reference switch (hobbs switch)

Stage 4 (5.5 liters per minute)

Our Stage 4 bucketed/bucketless hybrid fuel pump includes all necessary wiring and pump activation switch (hobbs switch). This pump utilizes the OEM brushless pump in the bucket with a Walbro 450 (F90000274) fuel pump outside the bucket. This pump can support up to 1,000whp! (Rated for 950whp on 100% E85) and is drop-in ready. No wires to cut or splice, nothing to assemble; simply drop the pump system into the tank, insert the factory pump, slide the bucketless bracket onto the side of the bucket, and close the top hat—you are ready to go!

Included in the box:

  • Genuine OEM fuel pump bucket assembly
  • Pre-assembled with OEM Brushless and mounted Walbro 450
  • Includes fuel sending unit (fuel level sensor)
  • Upgraded AN-6 fuel feed lines with fuel pressure regulator and return lines
  • New In-Line Fuel Filter
  • Plug and play boost reference harness (zero cutting, stripping, crimping)
  • 13psi boost reference switch (hobbs switch)

Stage 4.5 (6 liters per minute)

Our Stage 4 bucketed/bucketless hybrid fuel pump includes all necessary wiring and pump activation switch (hobbs switch). This pump utilizes the OEM brushless pump in the bucket and a second Walbro 525 (F90000285) fuel pump outside the bucket. This pump can support OVER 1,000whp! (Rated for 1,000+whp on 100% E85) and is drop-in ready. No wires to cut or splice, nothing to assemble; simply drop the pump system into the tank, insert the factory pump, slide the bucketless bracket onto the side of the bucket, and close the top hat—you are ready to go!

Included in the box:

  • Genuine OEM fuel pump bucket assembly
  • Pre-assembled with OEM Brushless and mounted Walbro 450
  • Includes fuel sending unit (fuel level sensor)
  • Upgraded AN-6 fuel feed lines with fuel pressure regulator and return lines
  • New In-Line Fuel Filter
  • Plug and play boost reference harness (zero cutting, stripping, crimping)
  • 13psi boost reference switch (hobbs switch)

This is a true plug-and-play solution that anyone can install in their home garage and start taking advantage of the benefits right away.

Specifications

Factory BMW pump

  • Pump flow 72psi (5bar): 3.55 LPM

Stage 4

  • Pump flow 72psi (5bar): 5.5 LPM
  • Pump Weight:
  • Horsepower Supported (Pump Gas): 1,000+
  • Horsepower Supported (100% E85): 950
  • Aftermarket EKP Required: No

Stage 4.5

  • Pump flow 72psi (5bar): 6 LPM
  • Pump Weight:
  • Horsepower Supported (Pump Gas): 1,000+
  • Horsepower Supported (100% E85): 1,000+
  • Aftermarket EKP Required: No

Documents

Setting Fuel Pressure - Adjustable Regulator

Stage 4 and 4.5 Install Instructions

Pump Activation Harness PDF Instructions

Fitment

  • Bmw M140i (2016 to 2019)
  • Bmw M240i (2017 to 2020)
  • Bmw M240i Xdrive (2017 to 2020)
  • Bmw 340i (2016 to 2018)
  • Bmw 340i Gt Xdrive (2017 to 2019)
  • Bmw 340i Xdrive (2016 to 2018)
  • Bmw 440i (2017 to 2020)
  • Bmw 440i Gran Coupe (2017 to 2020)
  • Bmw 440i Xdrive (2017 to 2020)
  • Bmw 440i Xdrive Gran Coupe (2017 to 2020)
  • Bmw 230i 2017 to 2020
  • Bmw 230i Xdrive 2017 to 2020
  • Bmw 320i 2017 to 2018
  • Bmw 320i Xdrive 2017 to 2018
  • Bmw 330i 2017 to 2019
  • Bmw 330i Gt Xdrive 2017 to 2019
  • Bmw 330i Xdrive 2017 to 2019
  • Bmw 430i 2017 to 2020
  • Bmw 430i Gran Coupe 2017 to 2020
  • Bmw 430i Xdrive 2017 to 2020
  • Bmw 430i Xdrive Gran Coupe 2017 to 2020

 

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. 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
SKU: 31538580637

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4.6 ★★★★★
Based on 26 reviews
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Product Reviews
A
Verified Purchase
Amazon Customer
Carnegie, US
★★★★★ 5
Good Product
Size: 3 Panel-102'', Color: Beige
I got these dividers for outdoor use for some privacy from neighbors. They arrived quickly and were easy to set up. They look good, and though the legs don’t offer stability against any amount of wind—which I expected as it wasn’t advertised for outdoor use—all it took was placing a cinder block on the feet to hold it up right. Coverage is good, it’s easy to fold and move as needed, and it’s light weight. All in all a decent product. I will caution the purchase of “used like-new,” as both of the dividers I ordered were previously returned items, and one came missing a cap, instructions were not included, and the poles were all mixed up and not properly labeled. If I had not ordered a second divider (which did include the instructions) I would have had a much harder time figuring out which pieces were which and how to put them together.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 30, 2025
J
Verified Purchase
julie h.
Boise, US
★★★★★ 5
So versatile! Perfect solution for dividing a room.
Size: 4 Panel-88'', Color: Grey, Size: 4 Panel-88'', Color: Grey
Perfect solution for my space. My office has to double as the hangout room for the kids and I wanted something that would block off my computer so it is left alone. This space allows me to close off my computer as much or as little as I want. It is lightweight yet has sturdy feet. This is important so that if it gets bumped it won’t topple over. The price was great and the build time wasn’t too bad! I would recommend two people for set up. I went with the grey panels and I think I’ll end up hanging some twinkle lights at some point. Great purchase!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 9, 2025
A
Verified Purchase
Abbi
Draper, US
★★★★★ 4
4/5 Stars
Size: 4 Panel-88'', Color: Black
Very tall and easy to set up, the only thing I will say is that they do have large gaps in between, so you won't have 100% privacy unless you add a curtain in the back. Other than that, they are easy to fold, sturdy, and esy to assemble. The gaps are an easy fix so I would say they are worth it.
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Reviewed in the United States on April 16, 2026
T
Verified Purchase
Tyi Campbell
Natrona Heights, US
★★★★★ 5
Great product and worth the money.
Size: 4 Panel-88'', Color: Black
Portable and stable. Perfect size and gives me the privacy I need when working from home. Stability is great as long as you place the stands correctly it won't wobble. I love it.
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Reviewed in the United States on May 8, 2026
M
Verified Purchase
Mona T.
Charlottesville, US
★★★★★ 5
Attractive
Size: 4 Panel-88'', Color: Grey
The assembled product is just as described. The screens look great! I am using them to hide the cluttered shelving in my garage. The area now looks quite neat Something I must say, though, is that the assembly was extremely difficult. I had to use a silicone spray and some pounding to get the A and B poles to fit together. Also, it required a great deal of strength to stretch and hold the fabric panels so that the bars inserted in each hem lines up with the screws inserted in A/B poles. I strongly recommend having a partner to help with the assembly. while sc and screw into poles them once inserted intetchedtne end of each pole ( and B poles barely fit together. I used silicone spray on the end and then pounded them
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Reviewed in the United States on December 12, 2025

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