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Details
| Specification | Value |
|---|---|
| Brand | TOPRAN |
| Category | boot, drive shaft |
| Fitting Position | Rear Side |
| Fitting Position | Front Left |
| Fitting Position | Front Right |
| Height [mm] | 81 mm |
| Inner Diameter 1 [mm] | 22 mm |
| Inner Diameter 2 [mm] | 82 mm |
OE/OEM numbers (4)
Search by this OE number to find compatible parts
- AUDI / VW—431 407 285A
- AUDI / VW—431 407 285B
- AUDI / VW—431 407 285C
- AUDI / VW—443 407 285A
Where this part fits
Original-fit position for OE 431407285B. The red ring marks where this part installs on the vehicle.
About this product
When boot, drive shaft performance matters, the TOPRAN 103 661 delivers — built to the same dimensional and material standards as the original part it replaces. The part is built to the following specification: Fitting Position: Right Side, Fitting Position: Front Left, Fitting Position: Front Right, Height [mm]: 81 mm, Quantity per axle: Aluminium. Each dimension is checked against the OEM reference to ensure the component seats and functions correctly first time. Compatible with AUDI 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: 00638, 00720371, 00721031, 00723379 and 96 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 (102)
Show all 102 OE numbers
boot, drive shaft TOPRAN 103 661 — compatible car models
| Car models | AUDI: 100 C2 Saloon (431, 433, 434), 100 C3 Saloon (443, 444), 100 C4 Avant (4A5), 100 C4 Saloon (4A2), A6 C4 (4A2), A6 C4 Avant (4A5) |
|---|---|
| Engines | 1.6; 1.8; 2.0 E; 2.0; 1.9 TDI |
| Year of manufacture | 1976-1998 |
| Manufacturer article number (MPN) | 103 661 |
| OE part numbers | 431 407 285A, 431 407 285B, 431 407 285C, 443 407 285A |
Compatibility check
Loading vehicle data…
Please wait while we load vehicle compatibility information.Description and what's included
TOPRAN 103661 boot, drive shaft. Bellows Material: 4. Fitting Position: RS. Fitting Position: VL. Fitting Position: VR. Height [mm]: 81 mm. Inner Diameter 1 [mm]: 22 mm. Inner Diameter 2 [mm]: 82 mm. Quantity per axle: 2
- 1x boot, drive shaft
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 boot, drive shaft compatible with my car?
This boot, drive shaft fits AUDI 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 boot, drive shaft have?
This TOPRAN boot, drive shaft has the following specifications: Fitting Position: RS; Fitting Position: VL; Fitting Position: VR; Height [mm]: 81 mm; Quantity per axle: 2; Inner Diameter 1 [mm]: 22 mm. Check the full specifications table above for complete details.
What OE part numbers does this boot, drive shaft replace?
This boot, drive shaft replaces OE part numbers: 431 407 285A, 431 407 285B, 431 407 285C, 443 407 285A. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.
How much does a boot, drive shaft cost?
This TOPRAN boot, drive shaft is available for £7.99. Boot, drive shaft 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 boot, drive shaft?
Regular inspection of your boot, drive shaft is recommended as part of routine vehicle maintenance. Watch for changes in performance, unusual noises, or visual signs of wear. Consult your vehicle's owner manual for manufacturer-recommended replacement intervals specific to your make and model.
What tools do I need to replace a boot, drive shaft?
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 boot, drive shaft fitted by a professional mechanic.
Can I use this part as a replacement for OE 431 407 285A?
Yes, this TOPRAN boot, drive shaft is a direct replacement for OE part number 431 407 285A. 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.
