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SKU: INA-5320342100
GTIN / UPC: 4005108338167
Made in: Germany
Quality: OE
11287549557, 11281440237
Also usable as replacement for: 11287839133, 11287839135 (pulley only, without lever)
5320342100, FP03421
This pulley is primarily specified for BMW applications under OE numbers 11287549557 and 11281440237. It can also serve as a secondary solution for S85 engines by replacing BMW part numbers 11287839133 and 11287839135 when only the pulley is needed (without the lever). In this case, the bolt and backplate must be removed before installation.
This idler pulley does not include a bearing protection cap. We recommend installing a new cap when replacing the pulley, as the old one often breaks upon removal.
Compatible cap (S85 application): 11281730349.
Accessory Drive Belt Idler Pulley
The drive belt idler pulley works with the tensioner pulley and assembly to maintain belt tension and guide proper routing around engine-driven accessories such as the power steering pump, water pump, A/C compressor, and alternator. It is often overlooked but should be replaced along with the belt tensioner to ensure long-term reliability.
Common Failure Symptoms:
- Visible wear or grooves on the pulley
- Belt squealing
- Chirping or grinding noises from the pulley bearing
- Uneven or abnormal belt wear
- Misalignment of the pulley relative to the mounting surface
GEMS autocraft offers quality auto parts, performance upgrades, accessories, maintenance services, retrofit solutions, and advanced coding support for a wide range of vehicles.
Returns are accepted within 30 days of delivery, provided the item is unused, in its original packaging, and in resellable condition. For complete details, please see our Return Policy.
Yes, we ship worldwide. Orders are packed carefully and overboxed when needed to help ensure they arrive safely.
Yes. Once your order has shipped, you will receive a tracking number by email. You can also check your order status anytime through your customer account under the Orders section.
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We stand behind the products and services we offer. Our return and warranty process is designed to be clear, fair, and efficient, so every request can be reviewed properly and handled with care.
GEMS Guard™ is our commitment to long term confidence across the products and services we support. It brings together lifetime protection on GEMS autocraft branded parts, honored manufacturer warranties on eligible products, and a 1 year workmanship warranty on services performed by GEMS autocraft.
