BMS
Burger Motorsports BMS JB4 Fuel Rail Pressure Sensor Plug/Connector 3-Pin Pigtail – BMW F-Series N20 N55 B48 B58 – JB4 Loom Repair Harness/Adapter, Plug & Play Upgrade – Fits M135i M140i 335i 440i F20 F30 F32
Burger Motorsports BMS JB4 Fuel Rail Pressure Sensor Plug/Connector 3-Pin Pigtail – BMW F-Series N20 N55 B48 B58 – JB4 Loom Repair Harness/Adapter, Plug & Play Upgrade – Fits M135i M140i 335i 440i F20 F30 F32
Heads-up on cancellations & returns: if you cancel an order or return an item, you won't get back 100% of what you paid. We apply a 10% restocking fee, the outbound shipping is non-refundable, and we have to pass on Shopify / PayPal payment processing fees; these aren't returned to us when we refund you. International orders also lose on exchange-rate spread in both directions. If the original packaging is damaged or missing, a reboxing charge applies. For international orders specifically, if you refuse to pay our shipping invoice or supply a prepaid label after placing the order, the same deductions apply. We're upfront about this — please be sure of your purchase before ordering.
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Genuine Burger Motorsports 3-pin fuel rail sensor plug for F-series BMW JB4 looms
Refresh and repair your JB4 wiring with the official Burger Motorsports 3-pin fuel rail pressure sensor pigtail. This direct-fit plug is the same update piece used on current production looms and is ideal if your earlier JB4 harness is missing the rail sensor connector or the original plug has been damaged. It clips straight into the fuel rail pressure transducer for clean, reliable signal to your JB4 on popular F-series models including M135i, M140i, 335i and 440i.
We run this part in-house and our customers consistently report a tidy install, stable data and dependable operation. If you want a simple, plug-and-play loom repair that keeps your tuning hardware reading correctly, this is the proven solution.
Key benefits
- Official BMS 3-pin pigtail with black leads for the fuel rail pressure sensor
- Perfect retrofit for earlier JB4 wiring that did not include the rail sensor plug
- Plug-and-play replacement for a missing or broken connector on the JB4 loom
- Ensures accurate rail pressure signal for stable JB4 operation and logging
- Neat, OE-style finish for a clean engine bay install
- Made by Burger Motorsports for quality and correct fit
Engine and model suitability
Designed for F-series BMW platforms running the JB4 on turbocharged engines:
- N20 and N55
- B48
- B58
Common applications include BMW M135i, BMW M140i, BMW 335i and BMW 440i. Please inspect your loom before ordering to confirm whether you need this connector.
Before you buy
Current JB4 harnesses already include this rail pressure plug. If your loom is an earlier version or the connector is missing or damaged, this is the correct update piece. A quick visual check of your harness will confirm whether the 3-pin black-wire plug is present.
Fitment check
Want extra peace of mind? Share your UK registration or the last 7 of your VIN at checkout and we will verify compatibility with your JB4 loom and F-series BMW.
Professional installation
Prefer us to fit it? MJ Modifications offers installation in Warwickshire. Request a quote at info@mjmodifications.co.uk.
Part numbers
- F-N55-F30-JB4-EW-FPC (N20 and N55)
- F-B48-F30-JB4-EW-FPC
- F-B58-F30-JB4-EW-FPC
Manufactured by
Burger Motorsports
Warranty
Burger Motorsports do not offer a warranty on this item.
Helpful search terms
BMW fuel rail pressure sensor plug, 3-pin rail sensor pigtail, JB4 loom adapter, wiring repair connector, F-series BMW fuel sensor plug, N55 pressure sensor connector, B58 rail sensor lead, B48 sensor pigtail, M135i fuel rail plug, M140i rail pressure connector, 335i wiring pigtail, 440i fuel pressure plug, plug-and-play sensor connector for JB4, Burger Motorsports connector upgrade.
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