BMW Fuel System Parts for BMW G82 M4 S58 3.0L

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Looking for a BMW fuel pump, BMW gas cap or other BMW fuel system related items? You've found the right place. Your BMW fuel delivery system is a critical system, and any failure can rended your BMW dead in the water. Whether your fuel pump has stopped pumping, a fuel injector is clogged or not spraying, or your gas cap is either lost or not properly sealing, we likely have what you are looking for. We stock thousands of BMW fuel system parts so if you don't see what you are looking for, just give us a call.

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Port Injector Plugs

T#:27171925

Part#: UNI-BMS-PIPLUGS

In Stock

$ 60.00 USD

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$ 60.00 USD

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These dummy injectors fit in place of port injection fuel injectors to block the holes. Allows use to aluminum manifolds with port injection bungs without having to purchase fuel injectors. Plugs are EV14 injectors and measure 38mm or 1.5" from o-ring to o-ring.

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G8X S58 Flex Fuel Kit

T#:8061332

Part#: S58FLEXFKIT

Ships on Sep 17, 2026

$ 479.00 USD

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$ 479.00 USD

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This complete flex fuel kit installs in under 30 minutes and reads your exact E85 mixture in the Fuel-It! smartphone app or JB4 app if equipped. Features CNC machined fittings for a quick plug and play installation with nylon sleeved stainless steel braided fuel lines for life long leak free operation. The complete kit includes the following: Genuine Continental ethanol sensor Fuel-It! Bluetooth Universal Analyzer Two stainless steel braided fuel lines with black nylon sheathing to protect your other engine bay components Proprietary custom billet fittings for plug and play OEM integration One wiring harness with Posi-tap connector Supports stand-alone Bluetooth operation with the Fuel-It! app **For the BMW G-series JB4 platform connect the white wire to position #4 on the JB4 25 pin harness. Select WMI page option 2/3/4 input to enable.

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Multi-Pump Fuel Surge Tank (MPFST)

T#:31059457

Part#: 20-1440

In Stock

$ 549.99 USD

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$ 549.99 USD

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JB4PRO Flex Fuel Add On Harness - B58/S58

T#:49822568

Part#: JB4PB58FFAOH

In Stock

$ 49.00 USD

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$ 49.00 USD

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Take your B58 or S58 build further with the JB4PRO Flex Fuel Add-On Harness—a simple, plug-and-play way to add an ethanol sensor and optional fuel pressure sensor to your JB4PRO setup. Keep your install clean, your wiring organized, and your tune dialed to match every fuel blend in the tank. Why it matters: Plug & Play: Connects directly to your JB4PRO—no cutting or splicing required. Sensor Ready: Supports ethanol and fuel pressure sensors for precise, real-time fueling adjustments. Clean, Safe Installation: Includes a 12 V adapter and inline fuse for hassle-free integration. How it works: This harness links your JB4PRO tuner to your flex fuel hardware. It’s not a complete flex fuel kit—you still need a compatible ethanol sensor—but it gives your JB4PRO the accurate readings it needs to adjust timing, boost, and fueling for E30, E50, or E85 blends.

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AUTOTECKNIC Dry Carbon Competition Fuel Cap Cover

T#:21045518

Part#: ATK-BM-0006-BC

Ships in 8 Business Days

$ 65.00 USD

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$ 65.00 USD

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Do you ever go to fill up your car and look at your gas cap and feel like something is missing? Well here you are, the AUTOTACKNIC dry carbon fuel filler cap is here is here to give your old filler cap some high quality personality! Crack a smile every time you open your gas cap!

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