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Details
| Specification | Value |
|---|---|
| Brand | FAST |
| MPN | ft02173 |
| Voltage [V] | 12 V |
| Fitting Position | Rear |
| Operating Mode | EL |
| paired article number | FT02174 |
OE/OEM numbers (3)
Search by this OE number to find compatible parts
- AUDI / SEAT / SKODA / VAG / VW—3B4839015AG
- SEAT / SKODA / VW—3B4839015AN
- VW—3B4839015K
Where this part fits
Original-fit position for OE 3B4839015AG. The red ring marks where this part installs on the vehicle.
About this product
The FAST Door Lock (FT02173) is a professional-grade replacement component engineered for long service life and reliable operation across all conditions your vehicle encounters. The part is built to the following specification: Voltage [V]: Zinc V, Fitting Position: Rear, Operating Mode: Electric, paired article number: FT02174. Each dimension is checked against the OEM reference to ensure the component seats and functions correctly first time. Verified to fit SEAT, SKODA, VW models. All compatibility data is cross-checked against the TecDoc database — select your vehicle to confirm the part matches your specific engine and year. This part supersedes original equipment references: 08755, 100031010, 100031110, 113833 and 92 more. Matching these numbers confirms a like-for-like replacement with no loss of function. FAST is a recognised supplier of automotive replacement components to independent workshops and dealer networks across Europe. All parts are sourced from authorised distribution channels and carry full manufacturer traceability — you receive exactly the same component supplied to professional garages and dealer workshops. If fitment or specifications do not match your vehicle, our technical team can help identify the correct alternative — use the vehicle selector or contact us with your VIN for a guaranteed-fit recommendation. Replacing worn components on schedule preserves your vehicle's safety, reliability, and resale value — and aftermarket parts from established brands deliver OEM-equivalent performance at a fraction of the dealer price. Every part is dispatched from our UK warehouse with a 30-day money-back guarantee and free hassle-free returns.
Door Lock buying guide
Why replace this part?
Door lock actuators use an electric motor and linkage to engage or disengage the door latch on central locking command. A failed actuator prevents remote locking from functioning on that door, creating a security vulnerability. The electric motor windings and plastic gear teeth inside the actuator are the most common failure points.
Signs you need a replacement
- One door not responding to the central locking remote
- clicking or grinding sound inside the door when locking
- door locking or unlocking intermittently
- door that must be locked manually while others lock automatically
- visible sluggish movement of the lock mechanism
When to replace
No set interval — actuators typically last 10–15 years or 100,000 cycles. Replace on failure. Access usually requires removing the door trim panel.
Suitable cars
Equivalent products (97)
Show all 97 OE numbers
Door Lock FAST FT02173 — compatible car models
| Car models | SEAT: CORDOBA (6L2), IBIZA III (6L1); SKODA: FABIA I (6Y2), FABIA I Combi (6Y5), FABIA I Saloon (6Y3); VW: POLO IV (9N, 9A), POLO IV Saloon (9A4, 9A2, 9N2, 9A6), POLO IV Saloon (9N2, 9N4) |
|---|---|
| Engines | 1.2; 1.0; 1.4; 1.9 TDI |
| Year of manufacture | 1999-2014 |
| Manufacturer article number (MPN) | FT02173 |
| OE part numbers | 3B4839015AG, 3B4839015AN, 3B4839015K |
Compatibility check
Loading vehicle data…
Please wait while we load vehicle compatibility information.Description and what's included
FAST ft02173 . Fitting Position: H. Operating Mode: EL. paired article number: FT02174. Voltage [V]: 12 V
- 1x Door Lock
Shipping, returns, warranty
Free UK delivery on orders over £99.00. Express and standard shipping available.
- Standard delivery: 2-5 business days
- Express delivery: 1-2 business days
- Free returns within 14 days
- All parts backed by manufacturer warranty
Warranty: 12-month manufacturer warranty on all parts. 14-day money-back guarantee if the part doesn't fit your vehicle.
Frequently Asked Questions
Is this Door Lock compatible with my car?
This Door Lock fits SEAT, SKODA, VW vehicles. Use the vehicle selector at the top of the page to check exact compatibility — enter your car's make, model, and engine for a confirmed fitment match. All fitment data is verified through TecDoc.
What specifications does this FAST Door Lock have?
This FAST Door Lock has the following specifications: Voltage [V]: 12 V; Fitting Position: H; Operating Mode: EL; paired article number: FT02174. Check the full specifications table above for complete details.
What OE part numbers does this Door Lock replace?
This Door Lock replaces OE part numbers: 3B4839015AG, 3B4839015AN, 3B4839015K. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.
How much does a Door Lock cost?
This FAST Door Lock is available for £41.99. Door Lock prices vary depending on brand, specifications, and vehicle compatibility. FAST parts offer a balance of quality and value, backed by our 14-day money-back guarantee.
How do I know when to replace my Door Lock?
Signs include the door not locking or unlocking with the key fob, difficulty turning the key in the barrel, the latch not engaging properly when the door is closed, or the door opening without a handle pull due to a worn latch.
What tools do I need to replace a Door Lock?
Tools required vary by vehicle make and model. Generally, a basic socket set, screwdrivers, and vehicle-specific tools may be needed. We recommend consulting a workshop manual for your specific vehicle, or having the Door Lock fitted by a professional mechanic.
Can I use this part as a replacement for OE 3B4839015AG?
Yes, this FAST Door Lock is a direct replacement for OE part number 3B4839015AG. It is manufactured to meet or exceed original equipment specifications, ensuring proper fitment and performance. All cross-reference data is verified through TecDoc.
Related categories
Common OE numbers for this part
Common original equipment numbers linked to stocked alternatives.
