Fuel-It
Fuel-It BMW N55 Fuel Tank Lock Ring/Collar Tool - LPFP Retaining Ring Wrench/Spanner/Socket for In-Tank Pump/Sender | Stage 2 Low Side Pump Removal & Install | F-Series M135i M235i 335i 435i (F20 F21 F22 F23 F30 F31 F32 F33 F36)
Fuel-It BMW N55 Fuel Tank Lock Ring/Collar Tool - LPFP Retaining Ring Wrench/Spanner/Socket for In-Tank Pump/Sender | Stage 2 Low Side Pump Removal & Install | F-Series M135i M235i 335i 435i (F20 F21 F22 F23 F30 F31 F32 F33 F36)
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BMW F-Series N55 in-tank fuel module retaining ring wrench by Fuel-It
Make fuel system work painless and precise with this stainless steel Fuel-It retaining ring wrench for the N55 low side pump assembly. Designed specifically for the Stage 2 in-tank upgrade, it grips the plastic locking collar cleanly so you can remove and refit the fuel module without damage, slipping or guesswork. Perfect for performance builds, maintenance and pump swaps on F-series six-cylinder turbo models.
Looking for a BMW fuel tank locking ring tool, fuel pump retaining ring spanner, in-tank pump collar tool or LPFP ring wrench for your N55. This is the workshop-grade answer trusted by enthusiasts and tuners.
Why this tool
- Purpose built for the Fuel-It Stage 2 low side pump assembly on N55-powered F-series cars
- Stainless steel construction for strength, accuracy and long service life
- Supplied with an extension for easy access through the rear seat service port
- Prevents chewed collars and damage to the tank module compared with hammer and screwdriver methods
- Fast, repeatable results for home installs and professional workshops
Real-world results
Used in-house at MJ Modifications, this ring spanner saves time and delivers a clean, secure refit every time. Our customers love the tidy finish and the confidence it gives during pump upgrades and servicing.
Fitment guide
For BMW F-series models with the N55 engine, including:
- M135i F20 F21
- M235i F22 F23
- 335i F30 F31
- 435i F32 F33 F36
Also ideal when searching for: F20 fuel pump ring tool, F22 tank sender ring spanner, F30 fuel module locking ring socket, F32 pump retaining collar tool.
Part number
F-N55-LPFP-S2-LRRT
Installation and fitting
Want it fitted. MJ Modifications offers professional installation and fuel system upgrades in Warwickshire. Request a quote at info@mjmodifications.co.uk.
Pro tip. Always use the correct retaining ring tool to avoid cracking or rounding the plastic collar. Do not use chisels or improvised methods.
Compatibility check before dispatch
We verify suitability prior to shipping. Add your UK registration or the last 7 of your VIN at checkout and we will confirm fitment.
Manufacturer
Fuel-It
Warranty
Fuel-It limited warranty
Why buy from MJ Modifications
UK performance specialists with hands-on experience of these parts. Genuine Fuel-It tooling, knowledgeable support and customer feedback that speaks for itself. If you are upgrading the low side pump on your N55, this is the retaining ring tool you want in your kit.
Common search terms
BMW fuel tank lock ring wrench. BMW N55 fuel pump locking collar tool. F-series fuel sender retaining ring spanner. Low side pump ring tool. BMW M135i pump ring remover. M235i fuel basket collar tool. 335i LPFP ring spanner. 435i in-tank pump ring socket. Fuel-It ring removal tool. Stainless fuel pump ring wrench.
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