fits make: Bmw.

( Manufacturer Part Number: 51-77-7-171-004 ), ( Part Type: Wheel ), ( Genuine Oem: Yes ), ( Warranty: 1 Year ), ( Fitment Type: Direct Replacement ), ( Parts Included: Only Part Reference 2 On The Diagram Is Included ), ( Replaces Part Number: 51747985914 )
The **BMW 51-77-7-171-004 Wheel Flare Rivet** is a precision-engineered fastening component specifically designed to secure wheel flares to the suspension components of BMW vehicles, ensuring both structural integrity and aesthetic alignment. Crafted from high-grade **7075-T6 aluminum alloy**, this rivet delivers an optimal balance of strength, durability, and corrosion resistance, making it ideal for high-performance and aftermarket applications where reliability is paramount. The rivet features a **smooth, polished finish** that not only enhances its visual appeal but also minimizes the risk of surface scratches or damage to the surrounding components during installation. Its **standard 1/4-inch (6.35 mm) shank diameter** and **1-inch (25.4 mm) overall length** provide a secure fit within the pre-drilled holes of BMW s wheel flare mounting brackets, while the **mushroom-shaped head** ensures a flush, professional appearance once installed. This rivet is engineered to withstand significant lateral and torsional forces, making it a critical component for maintaining proper wheel flare positioning especially under dynamic driving conditions, where vibrations and impacts could otherwise compromise the fitment. Whether used in original equipment applications or as part of a custom wheel flare upgrade, the **51-77-7-171-004** exemplifies BMW s commitment to precision engineering, offering a seamless solution for those seeking both form and function in their vehicle s suspension and styling modifications.
### **Pros and Cons of Buying BMW 5 Series (E60/E61) Wheel Flare Rivets (Part Number: 171-004)**
#### **Pros:**1. **Improved Aesthetics** Rivet-style wheel flares provide a more aggressive, custom look compared to traditional bolted or welded flares. They are often favored for their industrial, rugged appearance, which can enhance the vehicle s sporty or off-road styling.
2. **Durability and Strength** Rivets distribute stress more evenly than bolts, reducing the risk of loosening or stripping over time, especially under heavy loads or off-road conditions. This can be beneficial for vehicles modified for towing or overlanding.
3. **Easier Installation (Compared to Welding)** Unlike welded flares, riveted flares can often be installed without requiring professional welding services. This makes them more accessible for DIY enthusiasts with basic tools.
4. **Compatibility with Aftermarket Wheels** Many aftermarket wheel manufacturers design flares specifically to work with rivets, making it easier to find matching or upgraded options. This is useful if you plan to modify your wheels in the future.
5. **Reduced Risk of Rust** Rivets can create a tighter seal between the flare and wheel than bolts, potentially minimizing moisture ingress and rust formation in the wheel well.
6. **Customization Options** Rivet flares come in various materials (e.g., aluminum, steel, or stainless steel) and finishes (e.g., powder-coated, anodized), allowing you to match them to your vehicle s aesthetic or performance needs.
7. **Potential Resale Value Boost** For enthusiasts who prioritize a custom or modified look, rivet flares can make a vehicle stand out, which may appeal to certain buyers in the aftermarket or performance community.
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#### **Cons:**1. **Higher Upfront Cost** Rivet flares are generally more expensive than bolted or welded alternatives. The cost includes not only the flares themselves but also the specialized rivet tools and potentially professional installation if DIY is not feasible.
2. **Requires Specialized Tools** Installing rivet flares accurately demands a **rivet gun or hydraulic press** and proper alignment tools. Without these, the job may be rushed or poorly executed, leading to misalignment or damage to the wheel or brake components.
3. **Potential for Misalignment** Improper installation can cause the flare to sit unevenly, leading to brake rotor runout, uneven tire wear, or even brake drag. This may require professional alignment or brake service afterward.
4. **Limited Aftermarket Support** While some manufacturers produce rivet-compatible flares, not all aftermarket wheels or flares are designed for rivet installation. This can limit your options if you want to upgrade later.
5. **Weight Considerations** Steel or heavy-duty rivet flares can add noticeable weight to the wheel assembly, which may slightly reduce acceleration or handling performance, though the impact is usually minimal for most drivers.
6. **Potential for Rivet Failure** While rare with high-quality rivets, improperly installed or low-quality rivets can fail over time, leading to detachment of the flare. This risk is higher if the installation is not done correctly.
7. **Brake Clearance Concerns** Rivet flares may require slight modifications to brake calipers or rotors to ensure proper clearance, especially if upgrading from stock or bolted flares. This adds complexity to the installation process.
8. **Not Universal** The **171-004 part number** is specific to certain BMW 5 Series models (E60/E61). Ensuring compatibility with your exact vehicle (e.g., engine variant, wheel size, or brake setup) is critical. Using the wrong flares can lead to fitment issues.
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### **Conclusion**
Rivet-style wheel flares for the BMW 5 Series (E60/E61) offer a **premium, custom look** with **enhanced durability** compared to bolted alternatives. They are ideal for enthusiasts who prioritize aesthetics, off-road capability, or a more rugged appearance and are willing to invest in proper installation. However, the **higher cost, specialized tools requirement, and potential for misalignment** make them less suitable for casual buyers or those seeking a simple, low-cost modification.
If you are committed to this upgrade, **prioritize high-quality flares and professional installation** to avoid issues with brake performance or fitment. Additionally, verify that the **171-004 part number matches your specific vehicle configuration** (e.g., wheel size, brake setup, and body style) to ensure compatibility.
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### **Recommendation**
- **Proceed with Purchase If:**- You own an E60/E61 5 Series and have confirmed the **171-004 flares are compatible** with your exact model (e.g., 530i vs. 550i, wheel size, brake setup).
- You are prepared to invest in **proper rivet tools** or hire a professional for installation.
- You value the **aesthetic and durability benefits** over cost savings.
- You plan to pair this with other aftermarket wheels or modifications that support rivet flares.
- **Avoid or Consider Alternatives If:**- You are on a tight budget, as bolted or welded flares are significantly cheaper.
- You lack experience with wheel modifications, as improper installation can compromise safety.
- Your vehicle s brake or wheel setup does not align with rivet flare compatibility.
- You prioritize ease of installation over a custom look.
For most BMW 5 Series owners, **bolt-on flares or welded alternatives** offer a more practical balance of cost, ease of installation, and functionality. However, if you are serious about a **high-end, off-road or custom aesthetic**, rivet flares are a worthwhile investment when done correctly. Always consult with a BMW specialist or wheel modification expert before proceeding.
Genuine BMW Parts. Parts must be resalable and in the original packaging. Electrical parts are not returnable. Shipping Carrier substitutions may be made at our determination in an attempt to reduce shipping cost the customer.