Dorch Low Pressure Fuel Hose (Flex Fuel ECA Fitment) - Gen 1 B58
Ships from the brand or distributor, usually in 3–7 business days
Make sure this fits your car
Fits: Gen 1 B58 (through 2019): BMW M140i, M240i (F22), 340i (F30), 440i (F32), 540i (G30), 640i GT (G32), 740i (G11), X3/X4 M40i (G01/G02). Not for Gen 2.
- Free US shipping over $250
- 30-day returns on unused parts
- Fitment help before you buy
This hose set adds an ethanol sensor to a Gen 1 B58's low-pressure feed. It works with any 3/8 in ethanol sensor and with the stock pump or any Dorch pump. It's the hose half of a flex fuel setup, for when you already have a sensor or are building your own.
What you get
- Triple-layer hose: PTFE-lined, stainless braided, with a black PVC jacket and crimped ends.
- Anodized aluminum fittings with double O-rings.
Good to know
- Pick your pump (stock/B58TU, DS1/DS15/DS2, DS25 side inlet, or DS25/DS3 front inlet) and your chassis group.
- It routes so the sensor tucks under the factory insulation and engine covers.
- Fits Gen 1 B58 cars through the 2019 model year: M140i, M240i (F22), 340i (F30), 440i (F32), 540i (G30), 640i GT (G32), 740i (G11) and X3/X4 M40i (G01/G02). It does not fit 2020+ (Gen 2) B58 cars.
Brand: Dorch Engineering · Part #: 581-TUA-ECA, 581-TUB-ECA, 581-TUC-ECA, 581-OGA-ECA, 581-OGB-ECA, 581-OGC-ECA, 581-45A-ECA, 581-45B-ECA, 581-45C-ECA, 581-90A-ECA, 581-90B-ECA, 581-90C-ECA
Gen 1 B58 (through 2019): BMW M140i, M240i (F22), 340i (F30), 440i (F32), 540i (G30), 640i GT (G32), 740i (G11), X3/X4 M40i (G01/G02). Not for Gen 2.
| Model | Chassis | Years | Engine | Fits |
|---|---|---|---|---|
| M140i | F20/F21 | 2016–2019 | Gen 1 B58 | |
| M240i | F22/F23 | 2016–2021 | Gen 1 B58 | |
| 340i | F30/F31/F34 | 2016–2019 | Gen 1 B58 | |
| 440i | F32/F33/F36 | 2017–2020 | Gen 1 B58 | |
| 540i | G30/G31 | 2017–2019 | Gen 1 B58 | |
| 740i | G11/G12 | 2016–2019 | Gen 1 B58 | |
| X3 M40i | G01 | 2018–2019 | Gen 1 B58 | |
| 640i GT | G32 | 2018–2019 | Gen 1 B58 | |
| M340i | G20/G21 | 2019+ | Gen 2 B58 (TU) | |
| M440i | G22/G23/G26 | 2021+ | Gen 2 B58 (TU) | |
| M240i | G42 | 2022+ | Gen 2 B58 (TU) | |
| Z4 M40i | G29 | 2019+ | Gen 2 B58 (TU) | |
| GR Supra 3.0 | A90/A91 | 2020+ | Gen 2 B58 (TU) | |
| 540i | G30/G31 | 2020–2023 | Gen 2 B58 (TU) | |
| 740i | G11/G12 | 2020–2022 | Gen 2 B58 (TU) | |
| X3 M40i | G01 | 2020+ | Gen 2 B58 (TU) | |
| X5 xDrive40i | G05 | 2019–2023 | Gen 2 B58 (TU) | |
| X6 xDrive40i | G06 | 2020–2023 | Gen 2 B58 (TU) | |
| X7 xDrive40i | G07 | 2019–2022 | Gen 2 B58 (TU) | |
| 840i | G14/G15/G16 | 2019+ | Gen 2 B58 (TU) |
Not sure? Email sales@b58racing.com with your VIN.
- Ships from the brand or distributor, usually in 3–7 business days.
- Free US shipping on orders over $250.
- Unused parts can be returned within 30 days. Some items are marked no-refund in their description.
Full details are on our shipping and returns page.
Pairs well with
Dorch Low Pressure Fuel Hose (Replacement) - Gen 1 B58
Dorch Flex Fuel Ethanol Sensor (ECA) Kit - Gen 1 B58
Dorch Replacement Injector Seals - Gen 1 B58
