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CP247
Gallery
BrandATE
MPN24.2125-1713.3
OE refs1
SKU0003-24.2125-1713.3
GTIN / EAN4006633083386

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Details

SpecificationValue
BrandATE
MPN24.2125-1713.3
CategoryMaster brake cylinder
Diameter [mm]25.4 mm
Length 1 [mm]49 mm
Length 2 [mm]111 mm
Thread Size 11x M10x1
Thread Size 21x M12x1

OE/OEM numbers (1)

Search by this OE number to find compatible parts

Where this part fits

Original-fit position for OE 4D0611021B. The red ring marks where this part installs on the vehicle.

1997 (3B-V-000 001 >>) — Wheels, brakes › 61110
1997 (3B-V-000 001 >>) · Wheels, brakes › 61110Position 1

About this product

ATE Master brake cylinder (24.2125-1713.3) is manufactured to OEM tolerances, ensuring a direct-fit replacement that restores your vehicle to factory specification without any modification. Technical specifications — Diameter [mm]: 25, Copper mm, Number of connectors: Aluminium, Length 1 [mm]: 49 mm, Length 2 [mm]: 111 mm, Thread Size 1: 1x M10x1 — are verified against the OEM data sheet to guarantee fitment accuracy and performance parity with the original equipment. Compatible with AUDI, 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: 05-0368, 0 986 480 966, 132952B, 202-368 and 10 more. Matching these numbers confirms a like-for-like replacement with no loss of function. ATE 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 ATE

ATE (Alfred Teves), founded in 1906 in Frankfurt, Germany, is one of the most respected names in braking technology, now part of the Continental Corporation. ATE specialises in brake pads, brake discs, brake calipers, brake fluid, and hydraulic components. As the original equipment supplier to Volkswagen, Audi, BMW, Mercedes-Benz, and Porsche, ATE sets the standard for braking safety. With over a century of braking innovation, ATE parts provide the confidence of OE-quality stopping power in every driving situation.

Suitable cars

Equivalent products (14)

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BREMBOM 85 036
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PEX2.25.332
QUINTON HAZELLHF25079
TEXTAR33056500
TRWPML360£140.99

Master brake cylinder ATE 24.2125-1713.3compatible car models

Car modelsAUDI: A4 B5 (8D2), A4 B5 Avant (8D5), A6 C5 (4B2, 4B4), A6 C5 Avant (4B5, 4B6), A8 D2 (4D2, 4D8), ALLROAD C5 (4BH); VW: PASSAT B5 (3B2), PASSAT B5.5 (3B3), PASSAT B5.5 Variant (3B6), PASSAT B5 Variant (3B5)
Engines1.6; 1.8; 2.5 TDI; 2.5 TDI quattro
Year of manufacture1994-2006
Manufacturer article number (MPN)24.2125-1713.3
OE part numbers4D0 611 021 B
Compatibility check

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Description and what's included

ATE 24.2125-1713.3 Master brake cylinder. Diameter [mm]: 25,4 mm. Length 1 [mm]: 49 mm. Length 2 [mm]: 111 mm. Number of connectors: 2. Thread Size 1: 1x M10x1. Thread Size 2: 1x M12x1

What's included:
  • 1x Master brake cylinder
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 Master brake cylinder compatible with my car?

This Master brake cylinder fits AUDI, 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 ATE Master brake cylinder have?

This ATE Master brake cylinder has the following specifications: Diameter [mm]: 25,4 mm; Number of connectors: 2; Length 1 [mm]: 49 mm; Length 2 [mm]: 111 mm; Thread Size 1: 1x M10x1; Thread Size 2: 1x M12x1. Check the full specifications table above for complete details.

What OE part numbers does this Master brake cylinder replace?

This Master brake cylinder replaces OE part numbers: 4D0 611 021 B. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.

How much does a Master brake cylinder cost?

This ATE Master brake cylinder is available for £146.99. Master brake cylinder prices vary depending on brand, specifications, and vehicle compatibility. ATE parts offer a balance of quality and value, backed by our 14-day money-back guarantee.

How do I know when to replace my Master brake cylinder?

Regular inspection of your Master brake cylinder 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 Master brake cylinder?

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 Master brake cylinder fitted by a professional mechanic.

Can I use this part as a replacement for OE 4D0 611 021 B?

Yes, this ATE Master brake cylinder is a direct replacement for OE part number 4D0 611 021 B. 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 ATE 24.2125-1713.3 the same as the ATE 03.2025-1904.3?

No, while both are Master brake cylinder parts, they are different products. The ATE 24.2125-1713.3 has Diameter [mm]: 25,4 mm, Number of connectors: 2, Length 1 [mm]: 49 mm. The ATE 03.2025-1904.3 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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