fits model: E30, 325i, M3, E28, E34, E32. make: Bmw.

( Manufacturer Part Number: 71151179257 ), ( Part Type: Tie Bracket Tire Down Bolt ), ( Country Of Origin: Germany )
The **BMW 71151179257 knurled bolt** is a precision-engineered, high-quality replacement part designed specifically for the rear spare tire tie-down bracket system on select BMW models, including the **E30 325i**, **E28 M3**, **E34 5-series**, and **E32 7-series** (among others). Crafted from durable, corrosion-resistant steel, this bolt features a **knurled drive surface** for improved grip and torque application, ensuring a secure and reliable fit during installation. The part is meticulously manufactured to meet BMW s original specifications, guaranteeing compatibility with the vehicle s existing hardware, including the tie-down bracket and mounting points. Its robust construction prevents loosening under vibration or dynamic loads, which is critical for maintaining the spare tire s stability during transit. Whether used in original equipment applications or as a replacement for worn or damaged components, this bolt enhances both functionality and safety, aligning with BMW s commitment to performance and longevity. Ideal for enthusiasts and mechanics alike, it represents a straightforward yet essential upgrade for maintaining the integrity of the spare tire system in these classic and highly sought-after BMW models.
### **Pros and Cons of Buying a BMW E-Series (E28, E30, E32, E34) Spare Tire Tie-Down Bracket and Knurled Bolt (Part Number: 71151179257 for 325i, M3 E28, E30, E34, E32)**
#### **Pros:**1. **Compatibility with Multiple BMW Models** The part number (71151179257) is designed to fit several BMW models, including the **E28 325i, E30 M3, E34 325i, and E32 735i**, making it a versatile purchase if you own or work on multiple BMWs from these generations.
2. **Essential for Spare Tire Security** The tie-down bracket ensures the spare tire remains securely fastened in the trunk, preventing it from shifting during driving, which could lead to damage or loss of the spare.
3. **Knurled Bolt for Better Grip** The knurled bolt (likely part of the bracket assembly) provides a textured surface, making it easier to tighten or loosen by hand without requiring tools, which is useful for quick adjustments.
4. **OEM Quality (If Genuine)** If purchasing from an authorized BMW dealer or a reputable aftermarket supplier, the part should meet BMW s original equipment standards, ensuring durability and proper fit.
5. **Prevents Wear on Trunk Lining** A properly secured spare tire reduces friction against the trunk interior, minimizing wear on the carpet or lining over time.
6. **Easy Installation** Most tie-down brackets are designed for straightforward installation, requiring only basic tools (often just a wrench or screwdriver) and minimal effort.
7. **Long-Term Reliability** BMW s E-series models (especially the E30 and E34) are known for their robust construction, and OEM or high-quality aftermarket parts should last the lifespan of the vehicle.
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#### **Cons:**1. **Potential Counterfeit Parts** If buying from an untrusted seller (e.g., eBay, random online marketplaces, or non-BMW authorized dealers), there is a risk of receiving **fake or low-quality parts** that may not fit correctly or fail prematurely. Always verify the seller s reputation and part authenticity.
2. **Aging Stock Availability** BMW s E-series models are now over **20-30 years old**, meaning original parts may be harder to find in stock, especially from dealers. Aftermarket suppliers may have better availability but at varying price points.
3. **Compatibility Confusion** While the part number is listed for multiple models, **subtle differences in trunk designs** (e.g., E28 vs. E30 vs. E34) could require slight adjustments. Double-checking the fitment for your specific model is crucial to avoid issues.
4. **Cost Considerations**
- **Genuine BMW parts** can be expensive, often **$50 $100 ** depending on the supplier.
- **Aftermarket alternatives** (e.g., from **Felgenbox, ECS, or local BMW parts shops**) may be cheaper but vary in quality.
- If the bracket is already damaged or missing, labor costs for installation may apply.
5. **Rust or Wear on Original Hardware** Older BMWs may have **rusted or stripped bolts** in the trunk, making installation difficult even with a new bracket. Inspect the area beforehand and consider replacing adjacent hardware if needed.
6. **Limited Aftermarket Support** Unlike newer BMWs, finding **detailed repair guides or forums** for E-series models can be harder, which may complicate troubleshooting if installation issues arise.
7. **Potential for Overkill** If your spare tire is rarely used or the trunk is already well-organized, the bracket may not be a high-priority upgrade. However, for safety and security, it remains a practical addition.
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### **Conclusion:**The **BMW 71151179257 spare tire tie-down bracket and knurled bolt** is a **practical and necessary part** for ensuring the spare tire remains securely fastened in your E-series BMW. Its **versatility across multiple models** makes it a cost-effective solution if you work on or own several BMWs from these generations. However, **buying from a trusted source** is critical to avoid counterfeit parts, and **pre-installation inspection** of the trunk area is advisable to account for rust or wear.
For most owners, the **benefits of safety and security outweigh the minor drawbacks**, especially if the part is sourced responsibly. If budget is a concern, **aftermarket alternatives** can be explored, but prioritize **quality and fitment** over price alone.
### **Recommendation:**- **Buy from an authorized BMW dealer or a well-reviewed aftermarket supplier** (e.g., **Felgenbox, ECS, or local BMW specialty shops**) to ensure authenticity and quality.
- **Verify compatibility** with your exact model (e.g., E28 vs. E30) to avoid fitment issues.
- **Inspect the trunk area** before installation to check for rust or damaged mounting points.
- **Consider a full spare tire kit upgrade** if the current setup is outdated or unreliable.
- **Document the installation** for future reference, as E-series BMWs may lack detailed online guides.
**Final Verdict:** **Worth purchasing** for safety and functionality, provided the part is genuine and properly installed. Avoid cheap, unverified sources to prevent long-term issues.
Guaranteed good condition. The vehicle has been completely parted out. Declared values of each package are according to the actual value that. Express shipping could be arranged, just let us know.
DONOR VEHICLE: 1987 E30 325I Sedan with A Manual transmission. The tires, if available, do not hold any value nor we guaranty the condition of tires. Wheels and Tires. Body panels could have scratches and would require painting.
Otherwise a $150 fee may apply.