| MOQ: | 5 |
| Price: | $10-15 |
| Standard Packaging: | Neutral packaging |
| Delivery Period: | 10 |
| Payment Method: | L/C,D/A,D/P,T/T |
| Supply Capacity: | 100000 |
Product Name: Fuel Pump Seal / Fuel Pump O-Ring / Flange Seal
OEM Numbers: 31460372, 32249369 (interchangeable)
Product Highlight: Genuine-spec rubber O-ring designed to seal the fuel pump or fuel sender unit to the fuel tank – prevents fuel vapor leaks and ensures proper fuel system pressure.
Dimensions: OEM standard specification; outer diameter approx. 124.46mm; thickness approx. 4.5mm.
OEM Standard: Meets original equipment specifications for material and fitment.
Vehicle Adaptability: Compatible with models listed in Section 4.
Make: European Premium Brand
Model Years: 2007–2018 (coverage detailed in Section 4)
Applicable Models: L359 (2007–2012), L538 (2012–2018), L550 (2015–2018), L405 (2013–2018), L494 (2014–2018)
Quality: OEM-grade rubber; available in Genuine OE and premium aftermarket variants with 12-month warranty.
| Parameter | Specification |
|---|---|
| Component | Fuel pump sealing O-ring |
| Outer Diameter | Approx. 124.46 mm |
| Thickness | Approx. 4.5 mm |
| Material | Fuel-resistant rubber (NBR / OEM-grade) |
| Function | Seals fuel pump to fuel tank flange |
| Condition | New, OEM replacement |
| Cross-Reference | 31339112, 31372002, 9G9N-9B230-BA |
Fuel System Integrity: Provides a tight seal between the fuel pump/sender unit and the fuel tank, preventing fuel vapor escape and maintaining proper system pressure.
Leak Prevention: A worn or damaged seal can cause fuel odor in the cabin or fuel leaks – replacement restores sealing performance.
OE Direct Fit: Precision-engineered to factory specifications – direct replacement with no modifications required.
Fuel-Resistant Material: Manufactured from OEM-grade rubber designed to withstand continuous fuel exposure without degradation.
Essential Service Component: The O-ring should always be replaced when the fuel pump or sender unit is removed and reinstalled, as the original seal can deform and lose its sealing ability.
Fits the following models:
| Model | Chassis | Years |
|---|---|---|
| L359 | – | 2007–2012 |
| L538 | – | 2012–2018 |
| L550 | – | 2015–2018 |
| L405 | – | 2013–2018 |
| L494 | – | 2014–2018 |
Compatible with various petrol engine variants. Verify VIN before ordering.
Q1: What are signs my fuel pump seal needs replacement?
Fuel odor in the cabin, visible fuel stains or wetness around the fuel pump access area, or fuel leaks from the top of the fuel tank indicate the seal is failing.
Q2: Should I replace this seal when replacing the fuel pump?
Yes – this O-ring is a single-use seal that should always be replaced when the fuel pump or fuel sender unit is removed. Reusing the old seal can lead to fuel vapor leaks.
Q3: Is professional installation required?
Yes – fuel pump access typically requires lowering the fuel tank or accessing through the cabin floor. Professional installation is strongly recommended to ensure proper sealing and fuel system safety.