- Shop with confidence: competitive prices, exclusive deals, and delivery perks.
- Need it quickly? We dispatch fast-moving parts daily. Check delivery options.
- Swap or return items within the standard return period with a simple process.
- Questions about fitment or orders? Our support team is ready to help.
Similar products
Customers also bought
Details
| Specification | Value |
|---|---|
| Brand | TOPRAN |
| Category | O2 Sensor |
| Number of pins | 4 -pin connector |
OE/OEM numbers (6)
Search by this OE number to find compatible parts
- AUDI / SEAT / VW—021 906 265AD
- AUDI / SEAT / VW—021 906 265AF
- AUDI / SEAT / VW—021 906 265AK
- AUDI / SEAT / VW—030 906 265BG
- AUDI / SEAT / VW—030 906 265BM
- AUDI / SEAT / VW—030 906 265BR
Where this part fits
Original-fit position for OE 021906265AF. The red ring marks where this part installs on the vehicle.
About this product
TOPRAN O2 Sensor (113 021) is manufactured to OEM tolerances, ensuring a direct-fit replacement that restores your vehicle to factory specification without any modification. Technical specifications — Number of pins: Copper -pin connector, Oxygen Sensor: Aluminium — are verified against the OEM data sheet to guarantee fitment accuracy and performance parity with the original equipment. Compatible with AUDI, SEAT, VW vehicles; use the vehicle selector above to confirm exact fitment for your make, model, and engine variant. Fitment data is sourced from TecDoc, the authoritative European parts catalogue. This part supersedes original equipment references: 021 906 265AD, 021 906 265AF, 021 906 265AK, 0 258 003 842 and 155 more. Matching these numbers confirms a like-for-like replacement with no loss of function. TOPRAN 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.
About TOPRAN
TOPRAN, part of the Hans Thomsen Group headquartered in Hamburg, Germany, is a growing independent aftermarket brand focused on providing quality parts at accessible prices. TOPRAN offers a comprehensive range covering engine, cooling, electrical, braking, and body components for European vehicles. All TOPRAN products are manufactured to meet OE specifications and undergo quality testing before distribution. Combining German quality management with competitive pricing, TOPRAN is an excellent choice for cost-conscious motorists and workshops who do not want to compromise on part quality.
Suitable cars
Equivalent products (163)
Show all 163 OE numbers
O2 Sensor TOPRAN 113 021 — compatible car models
| Car models | AUDI: A8 D2 (4D2, 4D8); SEAT: CORDOBA (6K1, 6K2), IBIZA II (6K1), INCA (6K9); VW: CADDY II MPV (9K9B), GOLF III (1H1), PASSAT B3/B4 (3A2, 35I), PASSAT B3/B4 Variant (3A5, 35I), POLO III (6N1), POLO III CLASSIC (6V2), SHARAN (7M8, 7M9, 7M6), TRANSPORTER T4 Bus (70B, 70C, 7DB, 7DK, 70J, 70K, 7DC, 7DJ), TRANSPORTER T4 Platform/Chassis (70E, 70L, 70M, 7DE, 7DL, 7D, TRANSPORTER T4 Van (70A, 70H, 7DA, 7DH) (+1 more) |
|---|---|
| Engines | 3.7; 1.0 i; 1.4 i; 1.4; 2.8 VR6; 60 1.4; 54 1.4; 2.8 VR 6; 2.8 |
| Year of manufacture | 1988-2010 |
| Manufacturer article number (MPN) | 113 021 |
| OE part numbers | 021 906 265AD, 021 906 265AF, 021 906 265AK, 030 906 265BG, 030 906 265BM, 030 906 265BR |
Compatibility check
Loading vehicle data…
Please wait while we load vehicle compatibility information.Description and what's included
TOPRAN 113021 O2 Sensor. Number of pins: 4 -pin connector. Oxygen Sensor: 2
- 1x O2 Sensor
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 O2 Sensor compatible with my car?
This O2 Sensor fits AUDI, SEAT, 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 TOPRAN O2 Sensor have?
This TOPRAN O2 Sensor has the following specifications: Number of pins: 4 -pin connector; Oxygen Sensor: 2. Check the full specifications table above for complete details.
What OE part numbers does this O2 Sensor replace?
This O2 Sensor replaces OE part numbers: 021 906 265AD, 021 906 265AF, 021 906 265AK, 030 906 265BG, 030 906 265BM, 030 906 265BR. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.
How much does a O2 Sensor cost?
This TOPRAN O2 Sensor is available for £24.99. O2 Sensor prices vary depending on brand, specifications, and vehicle compatibility. TOPRAN parts offer a balance of quality and value, backed by our 14-day money-back guarantee.
How do I know when to replace my O2 Sensor?
Symptoms include increased fuel consumption, rough idle, failed emissions test, check engine light, or reduced engine performance.
What tools do I need to replace a O2 Sensor?
Tools needed: lambda sensor socket wrench (22mm slotted), penetrating oil (apply 24 hours before removal on vehicles with high mileage or corrosion), oxygen sensor thread chaser, torque wrench (40-55 Nm), OBD-II scanner. Difficulty: Moderate DIY. Safety warning: Only remove on a fully cold exhaust. Apply penetrating oil the day before on older vehicles to avoid breaking the sensor in the bung -- a broken sensor requires professional extraction equipment.
Can I use this part as a replacement for OE 021 906 265AD?
Yes, this TOPRAN O2 Sensor is a direct replacement for OE part number 021 906 265AD. 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.
