BMW Fuel System Parts

Fuel Injector Replacement Kit - N52

10X Entries Into Our F80 M3 Sweepstakes

T#:53044116

Part#: 13537531634RKT2

In Stock

$ 268.70 USD

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$ 268.70 USD

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Restore engine performance and drivability by replacing those old, high mileage fuel injectors. Includes injector clips.

Fuel Filter Kit - M57

10X Entries Into Our F80 M3 Sweepstakes

T#:56291065

Part#: 13327811227KT2

In Stock

$ 55.42 USD

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$ 55.42 USD

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This fuel service kit pairs a high flow OEM replacement fuel filter with a fresh dampening ring and securing hex bolt. By replacing the filter and hardware together, you ensure fuel pressure stability

Fuel-It! Low Pressure Fuel Pump Upgrade Bucketless - N54/55 E-Series ...

T#:403280

Part#: FILPFPK4

Ships in 2 Business Days

Starting at $ 537.83 USD

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Starting at $ 537.83 USD

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This is a complete plug and play solution to replace your stock Low-Pressure Fuel Pump (LPFP) with a new E85 certified bucketless assembly.

This solution provides up to 25% more flow than our standard Stage 2 LPFP upgrade and up to 150% more flow than the stock pump.

This pump will support up to 550whp running 85% ethanol and 600whp running 50% ethanol.

The Stage 2 bucketless kit includes the following:

- A custom anodized billet fitting for the pump output and stock fuel line connection.
- Our custom billet aluminum anodized bracket for the pump and float assembly
- Two cotter pins to secure your float assembly
- A new E85 compatible Walbro 450 pump
- Spare vent tube clip
- A new Walbro filter

If you still need more flow, the Stage 3 upgrade is also available and can be added to your Stage 2 bucketless pump.

The Stage 3 upgrade kit includes:

- A complete plug and play solution by simply adding the secondary module
- Our custom billet aluminum fitting to run both pumps in parallel
- A new E85 compatible Walbro 450 pump
- Wiring harness for the secondary pump
- Spare vent tube clip
- A new Walbro filter

Recommended accessories:
- Lock Ring Removal Tool
- Hobb's switch
NOTE: These kits include a basic filter assembly. When using this filter, running the vehicle under low fuel conditions can cause fuel starvation issues. If you do hard straight line accelerations when you have less than 1/8 tank of fuel, we would recommend running our standard Stage 2, 3, or Stage 4 pump. In addition, if you intend to use this for road course applications, you may see starvation issues when running less than a half tank and doing long high G right turns. Again for those applications we'd recommend one of our standard pump applications.

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Fuel-It! Low Pressure Fuel Pump Upgrade Stage 3 - N54/55 E-Series ...

T#:403279

Part#: FILPFPK3

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Starting at $ 1,155.83 USD

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Starting at $ 1,155.83 USD

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This is a complete Low-Pressure Fuel Pump (LPFP) upgrade that replaces your stock LPFP assembly with a new E85 certified one. This solution provides up to 300% more flow than stock and this assembly can be purchased one of three ways to meet your needs. Trade-in: (Domestic and Canada) This option allows you to receive a rebuilt/upgraded stock bucket with two new Walbro 450 pumps, filters, and fittings to swap out your stock LPFP assembly and requires a $150 *core deposit. Trade-in: (Euro) This option allows you to receive a rebuilt/upgraded stock bucket with two new Walbro 450 pumps, filters, and fittings to swap out your stock LPFP assembly and requires a $300 *core deposit. New Build: This option includes a new VDO LPFP bucket that is upgraded with new Walbro 450 pumps, filters, and fittings. No core deposit required but is eligible for a core refund of $50 should you elect to return your *stock bucket. (US Spec only) All three options include the following: A complete plug and play solution by simply replacing your stock bucket. However, to utilize the secondary, an additional wiring harness must be installed. Two new E85 compatible Walbro 450 pumps Two new Walbro filters A custom fitting that is tuned to optimize the venturi and pump output Spare vent tube clip Wiring harness for the secondary Flow testing prior to shipping

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B58 Supra Fuel Pump Retrofit - F3X B58

10X Entries Into Our F80 M3 Sweepstakes

T#:2810083

Part#: 3671725KT

Ships in 1 day

$ 1,300.85 USD

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$ 1,300.85 USD

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Includes Required Retrofit Harness - This is a retrofit kit that allows you to run the stock fuel pump found on the B58TU Supra engine on your F chassis B58 car. It has increased flow that will support higher horsepower levels without the need for complex fuel system upgrades. Has been tested to support 600+WHP.

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High Pressure Fuel Pump Kit

10X Entries Into Our F80 M3 Sweepstakes

T#:15677496

Part#: 13537622231-KT

Ships in 1 Business Day

Sale - Save 1% $ 651.11

This product was last offered at the strikethrough price on
10-28-2026

$ 645.28 USD

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Sale - Save 1%

$ 651.11

This product was last offered at the strikethrough price on
10-28-2026

$ 645.28 USD

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Solve your fuel delivery issues kit includes both fuel pumps and a new fuel pressure sensor and hardware.

Fuel-It! Low Pressure Fuel Pump Upgrade Stage 2 - N54/55 E-Series ...

T#:403273

Part#: FILPFPK2

Back Ordered

Starting at $ 684.84 USD

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Starting at $ 684.84 USD

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*NORTH AMERICAN VEHICLES ONLY* If your current Low-Pressure Fuel Pump (LPFP) is struggling to keep up, is old and tired, or you need an E85-compatible pump assembly, this is the upgrade for you! This is a complete Low-Pressure Fuel Pump (LPFP) upgrade that replaces your stock LPFP assembly with a new E85-certified one. The new Walbro 450 pump provides approximately 100% more flow than stock and this assembly can be purchased one of three ways to meet your needs. All three options include the following: A complete plug-and-play solution by simply replacing your stock bucket A new E85-compatible Walbro 450 pump A new Walbro filter A custom fitting that is tuned to optimize the venturi and pump output Spare vent tube clip Flow testing prior to shipping

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High Pressure Fuel Pump Kit

10X Entries Into Our F80 M3 Sweepstakes

T#:5416773

Part#: N63S63HPFPKT

Ships in 1 Business Day

Sale - Save 1% $ 651.99

This product was last offered at the strikethrough price on
10-12-2026

$ 645.28 USD

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Qty

Sale - Save 1%

$ 651.99

This product was last offered at the strikethrough price on
10-12-2026

$ 645.28 USD

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Includes both fuel pumps and a new fuel pressure sensor. Solve your fuel delivery issues kit includes both fuel pumps and a new fuel pressure sensor and hardware.

Fuel-It! Low Pressure Fuel Pump Upgrade Stage 2 - N55 F-Series ...

T#:403295

Part#: FILPFPK5

Back Ordered

Starting at $ 634.84 USD

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Starting at $ 634.84 USD

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This is a complete Low Pressure Fuel Pump (LPFP) upgrade that replaces your weak stock LPFP assembly with a high-flow E85-certified one. Standard Kit Includes: A brand new OEM LPFP bucket that is upgraded with a new Walbro 450 or 525 pump and filter. A new E85 compatible Walbro 450 pump (F90000274) that flows 50% more fuel than stock Optional A new E85 compatible Walbro 525 pump (F90000285) that flows 65% more fuel than stock NOTE: Owners with I-Drive may get a Fuel pump warning on the screen that says "Continued driving is possible. Have the system checked by your BMW center as soon as possible." As long as the car is running fine and does not exhibit any other symptoms, there is not an issue with the pump and this can be ignored. If you have any questions about this please feel free to contact us. Upgraded pumps pull more current, so if your EKP (LPFP control module) is weak, it may overheat causing it to shut down and need to be replaced. If this is a concern for you check out our Stage 3 fuel pump upgrade kits that retain the stock LPFP and add a secondary pump.

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Fuel-It! Flex Fuel Kit - N54/N55 E Chassis

T#:21242695

Part#: FFK-N5XA

In Stock

Sale - Save 4% $ 485.99

This product was last offered at the strikethrough price on
09-20-2026

Starting at $ 464.99 USD

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Sale - Save 4%

$ 485.99

This product was last offered at the strikethrough price on
09-20-2026

Starting at $ 464.99 USD

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If you are running E85 or ethanol mixes in your BMW, you need this kit! This is a complete plug and play kit to install a Bluetooth ethanol sensor in your E-Chassis BMW. This kit replaces the stock fuel lines from the fuel tank to the engine bay with an upgraded -6an E85 compatible fuel line and adds an ethanol sensor and Bluetooth analyzer to monitor your ethanol content. Includes both Bluetooth App & 5v analog output for JB4 or flash tuning. For your fuel line upgrade, choose the option that supports your current configuration. HPFP to the fuel tank: (Stock) This upgrade replaces both stock fuel lines with one upgraded continuous fuel line from the fuel tank to the HPFP and adds the ethanol sensor. Port Injection to the fuel tank: If you are running our port injection kit, this upgrade replaces the stock fuel lines from the tank to the engine bay, integrates the ethanol sensor and then utilizes a Y adapter to supply the HPFP and PI with fuel. Our custom fittings remove those tee's and extra fittings for a cleaner high flow setup. Non-Fuel-It! port injection to fuel tank: Choose this option if you are running a port injection kit that we did not manufacture or sell. This kit includes a longer 18" feedline from the Y to the port injection rail. You then cut the feed line to the length you need and install the included -6an female fitting or -6an female elbow to make the connection to your port injection rail. All of these kits utilize the BMS custom billet aluminum fittings to integrate with the stock fittings so no modifications are needed. *For the BMW N54 E-series JB4 platform connect the white wire to position #15 on the JB4 25 pin harness. Select WMI Ethanol Setup option 1 to enable pin location 15/16 flex fuel input. *For the BMW N55 E-series JB4 platform connect the white wire to position #16 on the JB4 25 pin harness. Select WMI Ethanol Setup option 1 to enable pin location 15/16 flex fuel input. *Ethanol Sensors don't actually read the ethanol content, the readings are based on the absence of gasoline, so if your fuel is contaminated your ethanol readings may be artificially elevated.

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Fuel-It! Flex Fuel Kit - N54/N55 5 Series

T#:21242701

Part#: FFK-N5XB

In Stock

Starting at $ 464.99 USD

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Starting at $ 464.99 USD

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This is a complete plug and play kit to install a Bluetooth ethanol sensor in your E-Series BMW. (Check compatibility for your platform below) This kit replaces the stock fuel lines from the fuel tank to the engine bay with an upgrade -6an E85 compatible fuel line and adds an ethanol sensor and Bluetooth analyzer to monitor your ethanol content. This kit features a 0-5 volt analog output that integrates with the JB4, analog gauge, or any other ECU or tuner that supports 0-5 volt input. All of these kits utilize a custom billet aluminum fittings to integrate with the stock fittings so no modifications are needed. For your fuel line upgrade, choose the option that supports your current configuration. HPFP to the fuel tank: (Stock) This upgrade replaces both stock fuel lines with one upgraded continuous fuel line from the fuel tank to the HPFP and adds the ethanol sensor. Port Injection to the fuel tank: If you are running our port injection kit, this upgrade replaces the stock fuel lines from the tank to the engine bay, integrates the ethanol sensor and then utilizes a Y adapter to supply the HPFP and PI with fuel. Our custom fittings remove those tee's and extra fittings for a cleaner high flow setup. Non-Fuel-It! port injection to fuel tank: Choose this option if you are running a port injection kit that we did not manufacture or sell. This kit includes a longer 18" feedline from the Y to the port injection rail. You then cut the feed line to the length you need and install the included -6an female fitting or -6an female elbow to make the connection to your port injection rail. *These kits are available for off-road use only *Ethanol Sensors don't actually read the ethanol content, the readings are based on the absence of gasoline, so if your fuel is contaminated your ethanol readings may be artificially elevated. *For the BMW N54 E-series JB4 platform connect the white wire to position #15 on the JB4 25 pin harness. Select WMI Ethanol Setup option 1 to enable pin location 15/16 flex fuel input. *For the BMW N55 E-series JB4 platform connect the white wire to position #16 on the JB4 25 pin harness. Select WMI Ethanol Setup option 1 to enable pin location 15/16 flex fuel input. *Ethanol Sensors don't actually read the ethanol content, the readings are based on the absence of gasoline, so if your fuel is contaminated your ethanol readings may be artificially elevated.

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Radium - Split-Flow Flex Fuel Sensor Adapter

T#:53290958

Part#: 20-0589

In Stock at Vendor

$ 99.99 USD

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$ 99.99 USD

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Fuel Pump Kit - E46

10X Entries Into Our F80 M3 Sweepstakes

T#:56291046

Part#: 16142229684KT2

Ships in 1 day

$ 546.99 USD

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$ 546.99 USD

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A tired fuel pump or a restricted fuel filter can cause dangerous lean spikes under full throttle putting your high strung M engine at risk. The BMW E46 M3 saddle tank relies heavily on both a primary pump and an auxiliary transfer pump to keep fuel moving efficiently across the tank arch during cornering.

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Fuel pump and level sensor kit

10X Entries Into Our F80 M3 Sweepstakes

T#:56471664

Part#: 16116768788KT2

Ships in 3 Business Days

$ 681.99

This product was last offered at the strikethrough price on
09-04-2026

$ 642.99 USD

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$ 642.99 USD

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This targeted refresh package to completely restore your E46’s fuel tank module. Built around a high grade Continental fuel pump assembly this kit ensures maximum fuel flow stability, precise fuel gauge readings, and a leak free installation.

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Radium Fuel Hanger Surge Tank Complete Kit - For Walbro Pumps ...

10X Entries Into Our F80 M3 Sweepstakes
Upgrade Your Low-Pressure Fueling System With this All-Inclusive Kit!

T#:25606665

Part#: N5XFUEL

Back Ordered

Starting at $ 1,241.80 USD

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Starting at $ 1,241.80 USD

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Introducing the comprehensive N54/N55 Low-Pressure Fueling Solution! With Radium Engineering's Regulated Fuel Hanger Surge Tank at its core, this kit allows you to tailor your fuel pump setup, select an in-line fuel filter, and opt for a wiring kit for multiple LPFP configurations in your N54 or N55-powered E9X 335i. In this setup, the BMW fuel pump serves as a "lift" pump, maintaining fuel volume in the Fuel Hanger Surge Tank via a dedicated orifice. This guarantees sufficient pressure for the venturi jet pump(s) to operate, ensuring consistent fuel delivery. Excess fuel in the FHST cycles back to the OEM tank through a one-way check valve ensuring a steady fuel supply. Unlike conventional surge tanks, which rely on pump flow matching, this FHST employs additional mechanisms to continuously deliver fuel regardless of fluctuations in other fuel sources. When the main tank nears depletion, the lift pump and Fuel Pressure Regulator step in to supply fuel to the FHST. Furthermore, with a boost reference signal (Hobbs Switch), the Fuel Pressure Regulator operates at a 1:1 ratio, allowing fuel pressure to rise proportionally with boost pressure. The low-pressure fuel returning from the Fuel Pressure Regulator is routed back into the surge tank to maintain its fullness. Inside the canister, a 6-hole diverter ensures even fuel dispersion without air bubbles or foaming. The stainless electrical studs included effectively handle high current demands, surpassing the capabilities of compact bulkhead connectors. These resilient connections are sealed against all standard and exotic fuels, with non-conductive acorn nuts provided to prevent accidental short circuits. The kit also includes the necessary electrical hardware for one Walbro fuel pump and the OEM level sender, while the in-tank wiring is insulated with premium chemically resistant ETFE for enhanced durability. If you are planning on running more than one LPFP, you will need to select the Hobbs Switch option for boost reference (to be installed on the manifold or charge pipe), as well as the fuel pump wiring kit! Features: -Drop-In OEM Replacement -Permits 1 or 2 Surge Pumps -1:1 Fuel Pressure Adjustments -Fuel Starvation Protection -Integrated 1-Way Fill Valve -High Current Electrical Hardware -Compatible with Various Pumps -Anodized Aluminum Construction -Gasoline and Ethanol Compliant -Anodized Aluminum 8AN Male Outlet Fitting -Anodized Aluminum Surge Tank Canister -Fuel Resistant Tubing and Wiring -Stainless Steel Hardware -Relay(s) and Fuse(s)

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Fuel Injector Replacement Kit - N52

Fuel Filter Kit - M57

Fuel-It! Low Pressure Fuel Pump Upgrade Bucketless - N54/55 E-Series ...

Fuel-It! Low Pressure Fuel Pump Upgrade Stage 3 - N54/55 E-Series ...

B58 Supra Fuel Pump Retrofit - F3X B58

High Pressure Fuel Pump Kit

Fuel-It! Low Pressure Fuel Pump Upgrade Stage 2 - N54/55 E-Series ...

High Pressure Fuel Pump Kit

Fuel-It! Low Pressure Fuel Pump Upgrade Stage 2 - N55 F-Series ...

Fuel-It! Flex Fuel Kit - N54/N55 E Chassis

Fuel-It! Flex Fuel Kit - N54/N55 5 Series

Radium - Split-Flow Flex Fuel Sensor Adapter

Fuel Pump Kit - E46

Fuel pump and level sensor kit

Radium Fuel Hanger Surge Tank Complete Kit - For Walbro Pumps ...

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