fits make: Bmw. year: 2016–2017.

( Brand: Other ), ( Manufacturer Part Number: 11.36.8.617.693--FEB ), ( Part Type: Timing Chain Sprocket Exhaust Camshaft )
The **BMW 11.36.8.617.693 Timing Chain Sprocket for the Exhaust Camshaft** is a precision-engineered component designed exclusively for the **N55 3.0L inline-six engine** found in select **2016 2017 BMW models**, including the **330i, 330d, 430i, 430d, 530i, 530d, and X5 xDrive35i**. This critical part plays a vital role in maintaining the engine s timing system, ensuring seamless synchronization between the crankshaft and camshafts for optimal performance, fuel efficiency, and longevity. Crafted from high-grade **steel alloy**, the sprocket is machined to exacting tolerances to accommodate the **timing chain (11.36.8.617.693)** and its associated components, including the **intake and exhaust camshaft sprockets**, while minimizing wear and friction. The design incorporates **precision-cut teeth** that engage flawlessly with the timing chain, preventing slippage and ensuring accurate valve timing critical for preventing engine misfires, excessive oil consumption, or catastrophic failure. This sprocket is a **direct-fit replacement**, compatible with both **OEM (Original Equipment Manufacturer) specifications** and aftermarket timing chain kits, making it an ideal choice for restorers, mechanics, and enthusiasts seeking a reliable, high-performance solution. Proper installation requires careful alignment with the **timing marks** and adherence to BMW s recommended torque specifications to avoid premature wear or damage to the engine s valvetrain. Whether used in a routine maintenance overhaul or as part of a performance upgrade, this sprocket ensures the engine operates at peak efficiency, delivering the smooth, responsive power BMW drivers expect from their vehicles.
### **Pros and Cons of buying a BMW Timing Chain Sprocket (Part Number: 11368617693) for 2016-2017 N Series Engines**
#### **Pros:**1. **OEM Quality and Fitment** This part is an original BMW factory component, ensuring a precise fit and compatibility with the 2016-2017 N47/N55 engines. It eliminates concerns about aftermarket parts that may not align perfectly with the engine s timing system.
2. **Reliability and Durability** BMW s OEM parts are engineered to meet strict quality standards, reducing the risk of premature failure compared to lower-quality aftermarket alternatives. This is particularly important for timing components, which directly affect engine performance and longevity.
3. **Warranty Coverage** Purchasing directly from BMW or an authorized dealer often includes warranty protection, providing peace of mind in case of defects. Some third-party sellers may also offer warranties, though terms vary.
4. **Prevents Engine Damage** A failing timing chain sprocket can lead to catastrophic engine damage, including bent valves or piston damage in interference engines like the N55. Replacing it proactively avoids costly repairs down the line.
5. **Compatibility with Upgrades** If you ve modified your engine (e.g., forced induction, turbo upgrades), an OEM sprocket ensures proper timing alignment, which is critical for performance and reliability.
6. **Easier Installation** OEM parts are designed to work seamlessly with the engine s existing components, reducing the risk of installation errors that could occur with mismatched aftermarket parts.
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#### **Cons:**1. **High Cost** OEM BMW parts are significantly more expensive than aftermarket alternatives. The price for this sprocket (and associated labor if replacing it yourself is difficult) can be prohibitive for some owners.
2. **Limited Availability** While widely available through BMW dealers and online retailers, sourcing may take longer than aftermarket parts, especially if you re in a rush for a repair.
3. **Labor-Intensive Replacement** Replacing a timing chain sprocket often requires removing the engine cover, chain tensioners, and possibly the camshafts. This is a complex job that may require professional mechanics, adding to the total cost.
4. **Potential for Counterfeit Parts** If purchasing from non-authorized sellers (e.g., eBay, Craigslist, or untrusted online marketplaces), there s a risk of receiving counterfeit or low-quality parts that could fail prematurely.
5. **Overkill for Minor Issues** If the sprocket is only slightly worn but the rest of the timing chain system is in good condition, some owners might consider waiting or opting for a less expensive aftermarket sprocket. However, this is risky, as timing issues can escalate quickly.
6. **Depreciation Concerns** If you re not planning to keep the vehicle long-term, the cost of OEM parts may not be justified, especially for high-mileage or salvage-title cars.
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### **Conclusion**
The **11368617693 BMW timing chain sprocket** is a high-quality, reliable component that is essential for maintaining the health of your 2016-2017 N47/N55 engine. While it comes at a premium price, the risks of using a substandard part such as engine damage or premature failure far outweigh the cost. For owners who prioritize longevity, performance, and peace of mind, this is the safest choice.
However, if budget is a major concern, **high-quality aftermarket alternatives** (e.g., from brands like Fel-Pro, Felgen, or ATE) can offer comparable reliability at a fraction of the cost. Always ensure the aftermarket part is specifically designed for your engine and has positive reviews for fitment and durability.
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### **Recommendation**
- **For most BMW owners**, especially those with modified or high-mileage engines, **purchasing the OEM sprocket (11368617693) is the best choice**. It guarantees compatibility, reliability, and minimizes the risk of engine damage.
- **If cost is a limiting factor**, research reputable aftermarket brands and verify that the part is designed for your exact engine variant. Look for parts with strong customer reviews and warranties.
- **Avoid DIY replacement unless you re experienced** with timing chain systems. Incorrect installation can lead to catastrophic engine failure. If unsure, consult a professional mechanic.
- **Pair the sprocket replacement with a full timing chain inspection** (tensioners, guides, and chain condition) to ensure no other components are failing.
- **Buy from authorized sources** (BMW dealerships, reputable online retailers like RockAuto, or trusted parts stores) to avoid counterfeit or low-quality parts.
**Final Verdict:** The OEM sprocket is the gold standard for reliability, but weigh the cost against your vehicle s condition and long-term plans. For most cases, the investment is justified to prevent costly engine repairs.