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CP247
Gallery
BrandA.B.S.
MPN51680
OE refs1
SKU0206-51680
GTIN / EAN8717109350449

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Details

SpecificationValue
BrandA.B.S.
CategoryMaster brake cylinder
Brake SystemLUCAS/TRW
Length 1 [mm]70 mm
Length 2 [mm]92 mm
Thread Size 12x M12x1.0
Piston Diameter 1 [mm]25.4 mm

OE/OEM numbers (1)

Search by this OE number to find compatible parts

Where this part fits

Original-fit position for OE 8E0611021. The red ring marks where this part installs on the vehicle.

Tandem brake master cylinder — A6 A6/S5 Avant Quattro C5 (Typ 4B) (2002–2004) — Tandem brake master cylinder Reservoir
A6 A6/S5 Avant Quattro C5 (Typ 4B) (2002–2004) · Tandem brake master cylinder ReservoirPosition 1

About this product

A.B.S. Master brake cylinder (51680) is manufactured to OEM tolerances, ensuring a direct-fit replacement that restores your vehicle to factory specification without any modification. Technical specifications — Material: Steel, Number of connectors: Aluminium, Brake System: LUCAS/TRW, Length 1 [mm]: 70 mm, Length 2 [mm]: 92 mm — are verified against the OEM data sheet to guarantee fitment accuracy and performance parity with the original equipment. Compatible with AUDI, SEAT, SKODA, 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: 05-0458, 0 986 481 046, 100 532 0005, 1025.43 and 45 more. Matching these numbers confirms a like-for-like replacement with no loss of function. A.B.S. 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.

Suitable cars

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Show all 49 OE numbers
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BREMBOM 85 004
BREMSIPB0251
CAR6363
CIFAM202-458
FERODOFHM1477
FTE9220401£76.99
FTEH25963.3.1
GIRLING4008420
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KAMOKA1121074
KAWEB1329
LPR1329£47.99
MAGNETI MARELLI359002402040
MAGNETI MARELLI360219130339
MAPCO1743
MAXGEAR41-0053
METELLI05-0458
METZGER AUTOTEILE202-458
MEYLE100 532 0005
NAPANMC1009
NK824779
REMSAC1025.43
RIDEX258M0005
ROADHOUSE1025.43
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TRISCAN8130 29151
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Master brake cylinder A.B.S. 51680compatible car models

Car modelsAUDI: A4 B6 (8E2), A4 B6 Avant (8E5), A4 B6 Convertible (8H7), A4 B7 (8EC), A4 B7 Avant (8ED), A4 B7 Convertible (8HE), A6 C4 (4A2), A6 C5 (4B2, 4B4), A6 C5 Avant (4B5, 4B6), A6 C6 (4F2) (+1 more); SEAT: EXEO (3R2), EXEO ST (3R5); SKODA: SUPERB I (3U4); VW: PASSAT B5.5 (3B3), PASSAT B5.5 Variant (3B6)
Engines1.6; 1.8 T; 2.6; 2.0 TDI
Year of manufacture1994-2013
Manufacturer article number (MPN)51680
OE part numbers8E0 611 021
Compatibility check

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Description and what's included

A.B.S. 51680 Master brake cylinder. Brake System: LUCAS/TRW. Length 1 [mm]: 70 mm. Length 2 [mm]: 92 mm. Material: 1. Number of connectors: 2. Number of mounting bores: 2. Piston Diameter 1 [mm]: 25,4 mm. Thread Size 1: 2x M12x1.0

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, 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 A.B.S. Master brake cylinder have?

This A.B.S. Master brake cylinder has the following specifications: Material: 1; Number of connectors: 2; Brake System: LUCAS/TRW; Length 1 [mm]: 70 mm; Length 2 [mm]: 92 mm; Thread Size 1: 2x M12x1.0. 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: 8E0 611 021. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.

How much does a Master brake cylinder cost?

This A.B.S. Master brake cylinder is available for £88.99. Master brake cylinder prices vary depending on brand, specifications, and vehicle compatibility. A.B.S. 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 8E0 611 021?

Yes, this A.B.S. Master brake cylinder is a direct replacement for OE part number 8E0 611 021. It is manufactured to meet or exceed original equipment specifications, ensuring proper fitment and performance. All cross-reference data is verified through TecDoc.

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