BMW E3 / E9 / E12 Fan Coupling – Genuine BMW NOS – 11521251821

Genuine BMW New Old Stock engine cooling fan coupling for selected classic BMW applications.

Original mechanical friction-type fan coupling, supplied disassembled with the housing, loose components and original BMW packaging shown in the photographs.

The original BMW box carries part number 11 52 1 251 821.

Although unused old stock, the components show corrosion and other deterioration from long-term storage. Inspection and any necessary restoration are required before installation.

Product details

• Product: Engine cooling fan coupling / fan clutch

• German description: Lüfterkupplung

• Brand: Genuine BMW

• BMW part number: 11521251821

• Formatted BMW number: 11 52 1 251 821

• Short reference: 1251821

• Type: Mechanical friction-type fan coupling

• Application: Corresponding original engine cooling fan installation

• Condition: New Old Stock — unused, with storage-related corrosion

• Assembly condition: Supplied disassembled

• Quantity supplied: One group of fan coupling components as photographed

• Sales unit: All photographed components sold together

• Required quantity: One coupling per corresponding fan installation

Vehicle compatibility

For selected vehicles retaining the corresponding original fan coupling and water pump arrangement:

• BMW E3 — selected models within the 2500–3.3Li range

• BMW E9 — selected models within the 2.5CS–3.0CSL range, including 2800CS and 3.0CSi applications

• BMW E12 — selected early 525 and 528 applications

Compatibility depends on the production date, water pump, fan blade and coupling arrangement fitted to the vehicle.

Please confirm compatibility using BMW number 11521251821 and compare the photographed components with your existing installation.

Condition

Genuine BMW New Old Stock components from long-term storage.

Supplied disassembled, exactly as photographed. The metal components show visible rust, oxidation, discolouration and storage marks, particularly around the housing rim and disc surfaces.

The bearing, friction surfaces and operating mechanism have not been tested. Their serviceability cannot be confirmed from visual inspection alone.

The components require inspection, cleaning and any necessary restoration before assembly and installation. Completeness has not been verified against every component required for a working installation.

The original BMW box has considerable storage wear, including creasing, tears, damaged edges, discolouration, tape and handwritten markings.

Please carefully review all photographs for the exact condition and contents supplied.

Included

• Fan coupling housing with bearing and mounting hub shown

• Slotted circular disc shown

• Separate circular plate with central mechanism shown

• Small gasket in a separate bag, as photographed

• Original BMW parts box with label

Only the photographed items are included. The contents are supplied together in their disassembled condition.

Storage location: 208