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SKU: IWI-50038684
GTIN / UPC: N/A
Made in: Germany
Quality: OE
11317834163
50038684
Engine Timing Chain
This Iwis timing chain is a direct OE replacement for BMW applications. Each BMW S85 engine uses two timing chains. Although designed as a lifetime component, timing chains can stretch over time, leading to noise, misalignment, or tensioner stress. Replacing worn or noisy chains before failure is critical, as a broken or derailed chain can cause severe engine damage.
The timing chain synchronizes the crankshaft and camshafts, ensuring that valves open and close precisely during intake and exhaust strokes. Constructed from high-strength metal links, it is engineered for long-term durability but must be replaced if stretched or damaged.
Engine Timing Chain Failure Symptoms
• Rattling or slapping noise, particularly noticeable at startup or idle.
• Poor engine performance, reduced acceleration, or sluggish response due to incorrect valve timing.
• Severe wear or breakage can lead to catastrophic engine failure.
Additional Information
Recommended service tool: BMW S85 Timing Tool Kit - CTA 2897
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.
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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
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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.
