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CP247
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BrandDELPHI
MPNLW42106
OE refs1
SKU0089-LW42106
GTIN / EAN5012759702215

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Details

SpecificationValue
BrandDELPHI
MPNlw42106
CategoryBrake Cylinder
Brake SystemTeves
Piston Diameter [mm]19.1 mm

OE numbers (1)

Search by this OE number to find compatible parts

Where this part fits

Original-fit position for OE 34211117104. The red ring marks where this part installs on the vehicle.

WHEEL BRAKE CYLINDER — BMW Classic 3 E21 — 34 Brakes › 34_0058 DRUM BRAKE-BRAKE DRUM/WHEEL BRAKE CYL.
BMW Classic 3 E21 · 34 Brakes › 34_0058 DRUM BRAKE-BRAKE DRUM/WHEEL BRAKE CYL.Position 04

About this product

DELPHI Brake Cylinder (LW42106) is manufactured to OEM tolerances, ensuring a direct-fit replacement that restores your vehicle to factory specification without any modification. Technical specifications — Supplementary Article/Supplementary Info: 96, Brake System: Teves, Piston Diameter [mm]: Synthetic, Steel mm — are verified against the OEM data sheet to guarantee fitment accuracy and performance parity with the original equipment. Compatible with BMW 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: 020043, 03.3219-2102.3, 03.3219-2106.3, 03-3219-2106-3-02 and 50 more. Matching these numbers confirms a like-for-like replacement with no loss of function. DELPHI 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 with tracked delivery and a 14-day money-back guarantee with hassle-free returns.

About DELPHI

Delphi Technologies, with roots dating back to 1994 as part of General Motors, is a globally recognised supplier of fuel injection, ignition, and engine management systems. Delphi specialises in diesel injectors, fuel pumps, ignition coils, lambda sensors, and engine management components. As an OE supplier to major manufacturers worldwide, Delphi products are engineered to original factory specifications. With deep expertise in both petrol and diesel fuel systems, Delphi is the professional's choice for precision engine and fuel system components.

Suitable cars

Equivalent products (59)

Show all 59 OE numbers
A.B.S.2809
AKRON-MALÒ89694
AP Automotive Prod.WAP514
ATE-CN020043
ATE-CN03.3219-2102.3
ATE-CN03.3219-2106.3
ATE-CN03-3219-2106-3-02
AUTO DELTA70109
BENDIX212010B
BENDIX222010B
BENDIX622126
BOSCHWC574
Brake ENGINEERING4960
Brake ENGINEERINGWC1734BE
Brake ENGINEERINGWC4960
BREMBOA 12 048
CIFAM101-109
CIFAM70109
DANAPHWC67
FEDERAL MOGULCW1049
FERODOFHW051
FERODOFHY051
FIRST LINEDW541
FIRST LINEFBW1008
fri.tech.CF156
FTER1998A1
GIRLING5004167
HITECH28090
KAGER39-4419
KAWEW4960
LPR205157
LPR4960£14.99
MAGNETI MARELLI360219230275
METELLI04-0109
MGAC1460
MINTEXMWC177
MOPRODMWC327
MOTAQUIPVWC205
NK809914
NUOVA TECNODELTA3519
OPTIMALRZ-3971
PEX1.19.476
QUINTON HAZELLBWC3297
QUINTON HAZELLRF19010
RHIAG3519
RHIAGNT3519
ROADHOUSE1519.13
SAMKOC05157
Schaeffler FAGR1998A1
TRISCAN8130 11009
TRUSTINGCF156
TRW2676966072
TRW64967525
TRWBWD167
UNIPARTGWC1761
VALEO350538
VILLAR623.5203

Brake Cylinder DELPHI LW42106compatible car models

Car modelsBMW: 3 (E21), 5 (E28)
Engines315; 518
Year of manufacture1975-1987
Manufacturer article number (MPN)LW42106
OE part numbers3421 1117 104
Compatibility check

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Description and what's included

DELPHI lw42106 Brake Cylinder. Brake System: Teves. Piston Diameter [mm]: 19,1 mm. Supplementary Article/Supplementary Info: 96

What's included:
  • 1x Brake Cylinder
Shipping, returns, warranty

Free UK delivery on orders over £99.00. Tracked standard shipping.

  • Standard delivery: 5–9 business days
  • Order before 5pm — ships the next working day
  • 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 Brake Cylinder compatible with my car?

This Brake Cylinder fits BMW 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 DELPHI Brake Cylinder have?

This DELPHI Brake Cylinder has the following specifications: Supplementary Article/Supplementary Info: 96; Brake System: Teves; Piston Diameter [mm]: 19,1 mm. Check the full specifications table above for complete details.

What OE part numbers does this Brake Cylinder replace?

This Brake Cylinder replaces OE part numbers: 3421 1117 104. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.

How much does a Brake Cylinder cost?

This DELPHI Brake Cylinder is available for £23.99. Brake Cylinder prices vary depending on brand, specifications, and vehicle compatibility. DELPHI parts offer a balance of quality and value, backed by our 14-day money-back guarantee.

How do I know when to replace my Brake Cylinder?

Regular inspection of your 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 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 Brake Cylinder fitted by a professional mechanic.

Can I use this part as a replacement for OE 3421 1117 104?

Yes, this DELPHI Brake Cylinder is a direct replacement for OE part number 3421 1117 104. 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 DELPHI LW42106 the same as the DELPHI LW10100?

No, while both are Brake Cylinder parts, they are different products. The DELPHI LW42106 has Supplementary Article/Supplementary Info: 96, Brake System: Teves, Piston Diameter [mm]: 19,1 mm. The DELPHI LW10100 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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