Radium Fuel Rail, BMW M50 / M52 / M54 / M56 / S50 / S52 (E36 / E46 / Z4)
Radium Fuel Rail, BMW M50 / M52 / M54 / M56 / S50 / S52 (E36 / E46 / Z4)
Universal fit
No vehicle selection needed.
This part may still fit. Check the details below or contact us before ordering. Ask about fitment
Fitment not confirmed
This part may still fit. Check the details below or contact us before ordering. Ask about fitment
Vehicle fitment
This part is listed to fit the following vehicles.
In Melbourne? Fit it in our workshop.
We fit parts in-house at the RevZone workshop. Book a time and bring your car in.
Description
The Radium Engineering 20-0770 Fuel Rail is a billet aluminium fuel rail solution for BMW inline-six engines across the E36, E46, and Z4 platforms. CNC machined from extruded 6063 aluminium, black anodised, and laser etched, this rail is compatible with all fuel types including E85 and popular alcohol mixtures.
The injector bores are 14mm ID — matching OEM dimensions — so factory injectors or any aftermarket injector with the same height and O-ring sizes can be used. OEM injector retaining clip provisions are included. Three 8AN ORB ports (one centre, one at each end) provide connection points for fittings, FPDs, and FPRs. Fittings are not included and must be purchased separately.
Key Features
- CNC machined 6063 extruded aluminium — black anodised and laser etched
- 14mm ID injector bores — OEM equivalent, compatible with factory and aftermarket injectors
- OEM injector retaining clip provisions — factory clips reusable
- Three 8AN ORB ports — one centre, one at each end; O-ring style fittings required
- Centre port — optionally accepts Radium FPD-R or FPD-XR fuel pulse damper
- End ports — optionally accepts Radium DMR direct mount fuel pressure regulator
- E85 and alcohol fuel safe — compatible with all fuel types
- Mounting feet included — engine-specific anodised billet aluminium or polished stainless mounts provided for all compatible engines
Engine Compatibility
BMW M50 / S50
- Compatible with the North American S50B30US
- Not compatible with ITBs found on the non-US S50B30 and S50B32
- Mounts: anodised billet aluminium
BMW M52 / S52
- Full compatibility across M52 and S52 variants
- Mounts: anodised billet aluminium
BMW M52TU / M54 / M56
- Not compatible with OEM M56 "coupling-type" fuel injectors
- Mounts: polished stainless steel
Kit Includes
- Black anodised, laser etched fuel rail
- Mounting feet for all compatible engines (engine-specific)
- Stainless steel mounting hardware
Note: Fittings not included — must be purchased separately. O-ring style fittings required for all 8AN ORB ports. Ensure ample clearance around ports for FPRs, gauges, and FPDs — refer to dimensional drawings for reference.
Vehicle Fitment
- BMW E36 3 Series / M3 — M50, M52, S50 (US), S52
- BMW E46 3 Series / 330i — M52TU, M54, M56
- BMW Z4 (E85) — M54
Available Part Numbers
- 20-0770 — Fuel Rail, BMW M50 / M52 / M52TU / M54 / M56 / S50 / S52
Why Radium Engineering?
- ✔ Designed and manufactured in the USA
- ✔ CNC machined 6063 billet aluminium — black anodised, laser etched
- ✔ E85 and alcohol fuel safe throughout
- ✔ Trusted by professional motorsport teams and serious enthusiasts worldwide
- ✔ Exclusively distributed in Australia by Coore
Genuine Radium Engineering product. Stocked in Sydney for fast Australian delivery. Fittings sold separately. Not compatible with non-US S50B30/S50B32 ITBs or M56 coupling-type injectors. Professional installation recommended.
Specifications
- Part Number
- 20-0770
- Brand
- Radium Engineering
Shipping
Orders are processed within 1-2 business days (Monday to Friday), and orders placed before 12pm AEST are usually dispatched the same day. Once dispatched, standard shipping takes 3-7 business days and express 1-3, with tracking emailed as your order leaves.
If part of your order is out of stock, we'll contact you with the option to split the shipment or hold it until everything is ready. Read the full shipping policy.
Returns
You have 14 days from delivery to request a return on unused parts in their original packaging. Refunds incur a 15% restocking fee (20% for special orders), or choose store credit and the full purchase value is applied to your account.
Parts that have been test fitted, installed, or used can't be returned, and special-order or overseas-ordered items are assessed case by case. Faulty or incorrectly supplied items are always covered at no cost to you. Read the full returns policy.
