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CP247
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BrandTOPRAN
MPN103 405
OE refs2
SKU0301-103 405

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SpecificationValue
BrandTOPRAN

OE/OEM numbers (2)

Search by this OE number to find compatible parts

Where this part fits

Original-fit position for OE 321611939E. The red ring marks where this part installs on the vehicle.

vacuum hose                   shorten to:40X40MM — 2002 — Wheels, brakes › 61170
2002 · Wheels, brakes › 61170Position 3

About this product

When vacuum hose brake booster performance matters, the TOPRAN 103 405 delivers — built to the same dimensional and material standards as the original part it replaces. The part is built to the following specification: Braking System: 62, Hose Type: Steel. Each dimension is checked against the OEM reference to ensure the component seats and functions correctly first time. 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: 016043, 07.35.004, 07872, 08377 and 17 more. Matching these numbers confirms a like-for-like replacement with no loss of function. TOPRAN is a recognised supplier of automotive braking 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

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Vacuum Hose Brake Booster TOPRAN 103 405compatible car models

Car modelsAUDI: 80 B2 Saloon (811, 813, 814, 819, 853), 80 B3 Saloon (893, 894, 8A2), A2 (8Z0), A4 B5 (8D2), A4 B5 Avant (8D5), A6 C4 (4A2), A6 C4 Avant (4A5), A6 C5 (4B2, 4B4), A6 C5 Avant (4B5, 4B6), CABRIOLET B3 (8G7); SEAT: CORDOBA (6K1, 6K2), IBIZA II (6K1), TOLEDO I (1L2); VW: GOLF II (19E, 1G1), GOLF III (1H1), GOLF III Variant (1H5), JETTA II (19E, 1G2, 165), NEW BEETLE (9C1, 1C1), NEW BEETLE Convertible (1Y7), PASSAT B1 Variant (33), PASSAT B2 (32B), PASSAT B3/B4 (3A2, 35I), PASSAT B3/B4 Variant (3A5, 35I) (+3 more)
Engines1.3; 1.6; 1.2 TDI; 1.9 TDI; 1.0; 1.6 i; 1.4; 1.8 T; 100 1.6
Year of manufacture1973-2012
Manufacturer article number (MPN)103 405
OE part numbers321 611 939E, 844 611 939A
Compatibility check

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Description and what's included

TOPRAN 103405 . Braking System: 62. Hose Type: 1

What's included:
  • 1x Vacuum Hose Brake Booster
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 Vacuum Hose Brake Booster compatible with my car?

This Vacuum Hose Brake Booster 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 Vacuum Hose Brake Booster have?

This TOPRAN Vacuum Hose Brake Booster has the following specifications: Braking System: 62; Hose Type: 1. Check the full specifications table above for complete details.

What OE part numbers does this Vacuum Hose Brake Booster replace?

This Vacuum Hose Brake Booster replaces OE part numbers: 321 611 939E, 844 611 939A. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.

How much does a Vacuum Hose Brake Booster cost?

This TOPRAN Vacuum Hose Brake Booster is available for £2.99. Vacuum Hose Brake Booster 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 Vacuum Hose Brake Booster?

Regular inspection of your Vacuum Hose Brake Booster 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 Vacuum Hose Brake Booster?

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 Vacuum Hose Brake Booster fitted by a professional mechanic.

Can I use this part as a replacement for OE 321 611 939E?

Yes, this TOPRAN Vacuum Hose Brake Booster is a direct replacement for OE part number 321 611 939E. It is manufactured to meet or exceed original equipment specifications, ensuring proper fitment and performance. All cross-reference data is verified through TecDoc.

Is the TOPRAN 103 405 the same as the TOPRAN 120 818?

No, while both are Vacuum Hose Brake Booster parts, they are different products. The TOPRAN 103 405 has Braking System: 62, Hose Type: 1. The TOPRAN 120 818 may differ in dimensions, fitting position, or material composition. Always verify compatibility with your specific vehicle using our vehicle selector, or contact our customer service team for assistance.

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