Description
The belt with part number 11537644611 is listed as an OEM BMW accessory drive belt (often referred to as a “V-ribbed belt” or “serpentine belt”) used in the accessory belt system of certain BMW engines.
Key features & notes:
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Accessory belts drive multiple components (alternator, water pump, power steering pump, air-conditioning compressor) via a ribbed belt design, replacing older “V” style belts.
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Using the correct OEM belt ensures proper rib count, width, length, and material to maintain correct tension and avoid slippage, noise or premature failure.
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Even though I could not locate a full public description explicitly for 11537644611 during this search, by analogy with other BMW belt part numbers (e.g., 11287604937) it follows the format of OEM BMW belts. For example, one listing shows “BMW Accessory Drive Belt – Genuine BMW 11287604937” for a similar application. fcpeuro.com
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When replacing the belt: inspect tensioner and idler pulleys, check belt routing diagram, replace if cracked/glazed, and ensure correct tension is applied.
Compatibility / Fitment Notes:
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Brand: BMW
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Part No.: 11537644611
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Category: Accessory Drive / Serpentine / V-Ribbed Belt
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Important: Before ordering or listing, verify the vehicle’s VIN, engine code, build year, and belt routing diagram to confirm this part number is correct for that specific application.
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Because belt part numbers change with engine variants and accessory layout, you may want to include a note: “Please confirm correct part number for your engine variant” in the listing.
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