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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
At GEMS autocraft, we offer high-quality auto parts, performance upgrades, and accessories. We also specialize in professional maintenance services, BMW retrofits, and advanced coding solutions—all available at our Longueuil, QC location.
Returns are accepted within 30 days if the item is unused and in original packaging. For full details, see our Return Policy.
Yes! All worldwide orders are shipped over boxed for security.
Yes! Once your order ships, you will receive a tracking number via email. You can also track your order anytime by logging into your account and visiting the "Orders" tab.
We accept credit cards, PayPal, Apple Pay, Google Pay, and Shop Pay for a seamless checkout experience.
GEMS autocraft Return & Warranty Policy
We are committed to customer satisfaction and offer a clear and efficient process for returns and warranty claims.
| ⟶ Returns | |
| Return Window: | Returns must be requested within 30 days of delivery. |
| Item Condition: | Items must be unused, in original packaging, and in resellable condition. |
| Non-Returnable Items: | Electrical components, fluids, lubricants, used parts, custom orders, and gift cards are final sale. |
| ⟶ Warranty | |
| Warranty Coverage: | Most products and services are backed by a 1-year manufacturer or workmanship warranty. Eligibility may vary. |
| Claim Requirements: | To submit a claim, provide the order number, product details, and a description of the issue. Supporting photos may be requested. |
| ⟶ Additional Details | |
| Refund Processing: | Once inspected, refunds are issued within 3–5 business days to the original payment method. |
| Shipping Responsibility: | Return shipping is the customer’s responsibility. Prepaid labels are available upon request. |
| Policy Details: | View our complete Return and Warranty Policy for full conditions and examples. |
Submit Return Request Submit Warranty Claim
Need help? Contact our support team.
We stand behind the quality of every product we offer. All manufacturer warranties are honored according to their policies, with most components covered for 1-5 years. All GEMS autocraft branded products are backed by a lifetime warranty.
Standard shipping fees may apply.
For customers choosing installation at GEMS autocraft, we take it a step further—both the replacement part and installation are covered at no charge during the warranty period.
Drive with confidence, knowing your investment is fully protected.
