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Fuel Tank Lock Ring - Audi (4F0-201-921-A)
2005-2017 Audi - 4F0-201-921-A
- MSRP: $25.98
- Discount: $8.25 (31.8% off)
- Sale Price: $17.73
- MSRP: $25.98
Review Fitment & Product Details
Details
- Brand:
- SKU:
4F0-201-921-A
- Positions: Lower, Left, Right
- Other Names:
Ring, Fuel Pump Ring, Fuel Pump Tank Seal, Fuel Sender Unit Ring, Fuel Pump O-Ring
- Description:
Ring. Convertible,. Coupe,. Without awd 2009-2012. Without awd 2013-2016. This factory Audi Fuel Tank Lock Ring (4F0-201-921-A) stores, moves, and meters fuel to the engine, so pressure stability and spray quality translate directly into cold start behavior, idle quality, and emissions performance. Genuine Audi tooling and materials mean it installs into the original mounting points without modification. Fitment varies by model year, trim, and option content, so verify before ordering.
- Replaces:
4F0201921
California Proposition 65
WARNING: Cancer and reproductive harm - www.P65Warnings.ca.gov Pricing is valid online only and may vary in your local store
Vehicle Fitment
Vehicle Fitment
| Year | Make | Model | Body & Trim | Engine & Transmission |
|---|
Key Product Information
Additional Information
| SYMPTOMS | What to look for before replacing this fuel tank and filler (4F0-201-921-A): long cranking, misfire under load, hesitation on acceleration, fuel smell, a rough idle when warm, or a fuel gauge that reads inaccurately. Noting which conditions are present shortens diagnosis considerably at the shop. |
| TROUBLESHOOTING | Isolating the fault around 4F0-201-921-A: check both low and high side fuel pressure against specification with a scan tool before replacing components, and review fuel trim data to separate a delivery problem from an air metering fault. Record any stored fault codes before clearing them. |
| INSTALLATION | Fitting Audi part 4F0-201-921-A requires the fuel system to be depressurized first, all sealing surfaces to be clean, and injector seals to be renewed rather than reused. Compare the replacement against the original component before final assembly. |
| MAINTENANCE | Service upkeep for this fuel tank and filler (4F0-201-921-A) means replacing the fuel filter where a serviceable one is fitted, using top tier fuel, and avoiding running the tank persistently low, which stresses the in tank pump. Use fluids and parts that meet the Audi specification for the vehicle. |
| GENERAL_NOTES | Key consideration for 4F0-201-921-A: direct injection components operate at very high pressure, so observe the depressurization procedure and never crack a fitting on a running engine. Genuine Audi parts are built to the original specification, so fit, finish, and function match the factory component. |
| REPLACEMENTS | Commonly replaced alongside 4F0-201-921-A: injector seals, retaining clips, high pressure lines, and O-rings are single use items replaced with the component. Ordering the related hardware up front avoids a second trip once the assembly is open. |
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