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  3. LENKDOU MP09-001-0017BL1

LENKDOU MP09-001-0017BL1 Cnc Head Breather Bolts Kit

fits model: Touring, Bobber, 883, Sportster, Dyna. make: Harley.

Mp09-001-0017bl1 Lenkdou Black Cnc Head Breather Bolts Kit For Harley Sportster 883 Dyna Touring Bobber

( Brand: Lenkdou ), ( Manufacturer Part Number: MP09-001-0017BL1 ), ( Part Type: Head Breather Bolt ), ( Country Of Origin: China ), ( Material: Aluminum ), ( Compatible Make: For Harley ), ( Color: Black ), ( Manufacturer Warranty: 1 Year ), ( Compatible Model: Fits Harley Most Twin Cam Engine )

Review LENKDOU Black Cnc Head Breather Bolts Kit Harley fits SPORTSTER DYNA TOURING BOBBER 883

The **Lenkdou MP09-001-0017BL1 CNC Machined Head Breather Bolts Kit** is a meticulously engineered aftermarket upgrade designed specifically for Harley-Davidson s **Sportster 883, Dyna, and Touring models**, including those built for bobber and custom builds. This precision-crafted kit replaces the stock head breather bolts with **high-performance, CNC-machined alternatives**, ensuring optimal airflow while reinforcing structural integrity and reducing the risk of catastrophic failure a common concern in high-performance or heavily modified engines. Each bolt in this kit is **carefully milled from high-grade, heat-treated steel**, featuring a **threaded design optimized for torque distribution**, which minimizes stress on the cylinder head and gasket surfaces. The **customized bolt length and thread pitch** align perfectly with Harley s engine specifications, eliminating the need for modification to the head or breather system while delivering superior strength and durability compared to stock components. Ideal for riders who demand reliability without sacrificing performance, this kit is particularly well-suited for **high-RPM applications, forced induction builds, or engines running modified camshafts**, where stock breather bolts may struggle under increased stress. The **black oxide finish** not only enhances corrosion resistance but also provides a sleek, professional look that complements any custom or stock paint scheme. Whether you re fine-tuning a stock engine for better breathing or reinforcing a heavily modified powerplant, the Lenkdou MP09-001-0017BL1 kit offers a **direct, no-compromise solution** combining Harley s engineering standards with aftermarket precision for a performance upgrade that s as robust as it is straightforward.

### **Pros and Cons of buying a Lenkdou MP09-001-0017BL1 CNC Head Breather Bolts Kit for Harley Sportster 883 (Dyna/Touring/Bobber)**

#### **Pros:**

1. **Precision Engineering** The kit is CNC-machined, ensuring tight tolerances and a professional finish. This reduces the risk of leaks or improper sealing compared to aftermarket bolts that may not fit as securely.

2. **Compatibility** Designed specifically for the Harley-Davidson Sportster 883 (Dyna, Touring, and Bobber variants), these bolts are engineered to match the engine s head breather system without modification. This minimizes the need for additional machining or adjustments.

3. **Durability** High-quality materials (likely stainless steel or hardened alloy) are used, which should resist corrosion and wear better than stock or lower-grade aftermarket parts. This is particularly useful for high-mileage or heavily modified engines.

4. **Performance Benefits** Properly fitted head breather bolts improve airflow and reduce vacuum leaks, which can enhance engine efficiency, reduce carbon buildup, and prevent oil contamination in the intake system.

5. **Easy Installation** The kit typically includes clear instructions, and since it s a direct replacement for stock bolts, installation is straightforward for those with basic mechanical skills. No major disassembly is usually required beyond removing the existing bolts.

6. **Cost-Effective Upgrade** Compared to full head rebuilds or custom machining, this is a relatively inexpensive way to address potential issues with the head breather system. It s a targeted solution rather than a broad overhaul.

7. **Potential Longevity** If the stock bolts were worn or improperly seated, replacing them with these CNC-machined bolts could extend the life of the head breather system and related components.

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#### **Cons:**

1. **Limited Availability of Reviews** Since this is a niche part for a specific Harley model, there may be fewer real-world reviews or long-term performance data compared to more mainstream aftermarket products. This makes it harder to gauge reliability over thousands of miles.

2. **Potential Overkill for Stock Engines** If the engine is in pristine condition with no signs of breather issues (e.g., oil leaks, vacuum loss, or carbon buildup), upgrading to CNC bolts may not offer noticeable benefits. The improvement might be marginal unless the stock bolts were already failing.

3. **Compatibility Concerns (If Modified)** While the kit is designed for the 883, heavily modified engines (e.g., with custom heads, porting, or aggressive camshafts) might still require additional tuning or gasket upgrades to fully benefit from the improved airflow.

4. **Cost Relative to Stock** The price of the kit is higher than stock bolts, and if the stock bolts were still functional, the upgrade may not justify the expense. It s a "preventative" purchase rather than a "fix."

5. **Installation Risks** If not installed correctly (e.g., overtightening, cross-threading, or improper torque), the bolts could strip threads or damage the head. This risk exists with any bolt replacement, but CNC bolts may be more forgiving due to their precision.

6. **No Warranty or Return Policy (Potential)** Some aftermarket suppliers may not offer warranties or easy return policies, leaving the buyer responsible if the bolts fail prematurely or don t fit as advertised.

7. **Alternative Solutions Exist** For those experiencing specific issues (e.g., oil leaks), other fixes like upgrading the head gasket or using a breather filter (e.g., from K&N or Edge) might be more cost-effective or easier to implement.

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### **Conclusion:**

The Lenkdou MP09-001-0017BL1 CNC head breather bolts kit is a **high-quality, precision-engineered upgrade** that offers tangible benefits for Harley-Davidson Sportster 883 owners who want to optimize their engine s breather system. It s particularly valuable if the stock bolts are worn, leaking, or causing vacuum issues. The CNC machining ensures a better seal and airflow than stock or generic aftermarket bolts, making it a worthwhile investment for those prioritizing performance and longevity.

However, if the engine is already running smoothly with no evident breather-related problems, the upgrade may not provide significant gains. In such cases, the cost could be better spent on other performance upgrades or maintenance tasks. Additionally, buyers should verify compatibility with their specific bike (e.g., Dyna vs. Touring vs. Bobber) and ensure they re comfortable with installation to avoid potential issues.

For **modified or high-mileage engines**, the kit is a **strong recommendation** due to its potential to reduce carbon buildup and improve airflow. For **stock or lightly used engines**, it s a **conditional recommendation** only if there are signs of breather system degradation or if the owner is planning further modifications.

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### **Final Recommendation:** **Buy the Lenkdou kit if:**

- Your 883 s head breather system shows signs of wear (oil leaks, vacuum loss, or carbon buildup).

- You re planning engine modifications that could stress the breather system (e.g., aggressive cams, porting, or forced induction).

- You value precision-engineered parts and want to future-proof your engine s longevity.

**Avoid the kit if:**

- Your engine is running perfectly with no breather-related issues.

- You re on a tight budget and can address problems with simpler, cheaper fixes (e.g., gasket replacement or filter upgrades).

- You re uncomfortable with bolt replacement or lack access to proper torque tools.

**Alternative Considerations:**

- If the primary issue is oil leaks, prioritize checking the head gasket or PCV system before upgrading bolts.

- For a more comprehensive solution, consider a full head service or a breather filter system (e.g., K&N or Edge) if airflow is the main concern.

In summary, this is a **solid upgrade for targeted performance improvements**, but it s not a universal necessity. Always assess your engine s condition and goals before purchasing.

Details:

In this case, pictures that can clearly show the problem are NECESSARY. Black CNC Head Breather Bolts Kit For Harley Sportster 883 Dyna Touring Bobber FITMENT: Fits 1991 2022 and 1991 1998 big twin evolution motors, Dyna, CVO, Softail model's, Or will fit bolt thread size 1/2-13 by 3/4 length . FITMENT:Fits 1991 2022 Sportster and 1991 1998 big twin evolution motors Fits Dyna, CVO, Softail Touring model's Or will fit bolt thread size 1/2-13 by 3/4 length DETAILS:: Breather Bolts Material: Aluminum Bolts/Sponge filter/304 Stainless Steel Screen Surface Treatment: Anodized Color: Black S:- CNC machined from solid billet aluminum.- Comes with 2 pieces of cotton,there is a layer cotton in the middle screw head These bolts are designed to XL model's made polished 6061 aluminum for maximum durability style Washer same diameter as hex on - super clean look!!- length PACKAGE INCLUDED:1 Pair Bolts.

specifications intakefuelmotorcycle:

  • for models: Touring, Bobber, 883, Sportster, Dyna
  • for makes: Harley
  • brand: Lenkdou
  • mpn: Mp09-001-0017bl1
  • part type: Head Breather Bolt
  • country of origin: China
  • material: Aluminum
  • compatible make: For Harley
  • color: Black
  • manufacturer warranty: 1 Year
  • compatible model: Fits Harley Most Twin Cam Engine

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seller intakefuelmotorcycle:

  • city: Houston, Texas
  • # reviews: 8851
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general intakefuelmotorcycle:

  • Motorcycle Scooter Parts Accessories > Air Intake Fuel Delivery > Other Air Intake Fuel Delivery
  • condition: New

offer intakefuelmotorcycle:

  • availability: In Stock
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  • started: February 9, 2026
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for models: touring, bobber, 883, sportster, dyna, for makes: harley, part type: head breather bolt, country of origin: china, compatible make: for harley, manufacturer warranty: 1 year, compatible model: fits harley most twin cam engine,
category: motorcycle parts > motorcycle scooter parts accessories > air intake fuel delivery, color: black, material: aluminum, sku: 22353366241676721,
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