HARLEY-DAVIDSON 66505-00 Engine Trans Top Cover
fits make: Harley.
( Brand: Harley-davidson ), ( Manufacturer Part Number: 66505-00 ), ( Part Type: Cover Engine Tran ), ( Machine Type: Street Motorcycle ), ( Color: Silver ), ( Material: Chrome ), ( Vintage Part: Yes ), ( Placement On Vehicle: Right ), ( Universal Fitment: No ), ( Compatible Year: 99 01 Touring Models ), ( Country Of Origin: Taiwan )
Review HARLEY DAVIDSON Engine Trans Top Cover
The **Harley-Davidson 66505-00 Engine Trans Top Cover** is a precision-engineered component designed to protect and seal the uppermost section of the transmission and engine assembly on select Harley-Davidson motorcycles, ensuring optimal performance, durability, and reliability. Crafted from high-quality, heat-resistant materials, this top cover is meticulously machined to fit seamlessly over the transmission housing, providing a robust barrier against dust, debris, and moisture that could compromise the internal mechanisms. Its sleek, aerodynamic design not only enhances the motorcycle s aesthetic appeal but also contributes to a cleaner, more streamlined look, particularly noticeable on models like the Harley-Davidson Sportster, Softail, or Dyna series, where the transmission cover is a prominent feature. The cover is engineered with tight tolerances to minimize vibration and noise, ensuring a quieter, smoother ride while maintaining structural integrity under the demanding conditions of long-distance travel or high-performance riding. Additionally, this component is often paired with Harley-Davidson s proprietary gaskets and fasteners, which are designed to withstand extreme temperatures and mechanical stress, preventing leaks and ensuring a secure seal. Whether installed during routine maintenance or as part of a customization project, the **66505-00 Engine Trans Top Cover** exemplifies Harley-Davidson s commitment to quality and craftsmanship, delivering both functional excellence and a touch of iconic motorcycle heritage.
**Pros and Cons of buying a Harley-Davidson 66505-00 Engine Trans Top Cover**
The **Harley-Davidson 66505-00 Engine Transmission Top Cover** is an essential part for maintaining the integrity and performance of a Harley-Davidson motorcycle s powerplant. Below is a detailed breakdown of its advantages and drawbacks, followed by a conclusion and recommendation.
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### **Pros**
1. **OEM Quality and Compatibility**
The 66505-00 is a genuine Harley-Davidson part, meaning it is designed specifically for Harley models (commonly found on the Evolution engine family, such as the 883cc or 1200cc engines). This ensures a perfect fit, reducing the risk of misalignment or improper sealing that could occur with aftermarket or non-OEM parts.
2. **Durability and Longevity**
Harley-Davidson parts are built to withstand the demands of heavy-duty use, including high temperatures, vibrations, and prolonged exposure to the elements. The transmission top cover is typically made from high-quality materials like aluminum or steel, which resist warping and corrosion over time.
3. **Sealing and Protection**
The top cover helps seal the transmission, preventing contaminants such as dirt, dust, and moisture from entering the internal components. This reduces wear on gears, bearings, and other critical parts, extending the life of the transmission and engine.
4. **Ease of Installation**
While some Harley parts can be tricky to install, the transmission top cover is relatively straightforward to replace. It usually requires removing a few bolts and ensuring proper alignment with the engine and transmission. Harley provides clear instructions, and many mechanics or DIY enthusiasts can complete the job without professional assistance.
5. **Resale Value and Reliability**
Owning a motorcycle with original, well-maintained parts like the 66505-00 can enhance its resale value. Potential buyers often prefer bikes with complete OEM components, as they are less likely to experience unexpected failures. Additionally, the reliability of Harley parts contributes to fewer breakdowns and lower long-term maintenance costs.
6. **Access to Support and Warranty**
Purchasing from an authorized Harley dealer or official distributor may include warranty coverage, which can provide peace of mind. Harley-Davidson offers customer support and may assist with installation guidance or part replacements if issues arise.
7. **Prevents Leaks and Fluid Contamination**
A damaged or worn transmission top cover can lead to oil leaks, which contaminate the engine bay with transmission fluid or lubricants. Replacing it proactively prevents such issues, ensuring the engine and transmission operate smoothly without cross-contamination.
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### **Cons**
1. **Cost**
The 66505-00 is not a cheap part. As an OEM component, it is priced higher than many aftermarket alternatives. For example, the cost may range from **$100 to $200 or more**, depending on the retailer and whether taxes or shipping fees are included. This can be a significant expense for riders on a tight budget or those who prefer to prioritize other modifications.
2. **Limited Availability**
While Harley-Davidson parts are widely available through dealers and online retailers, some specialized or older models may have limited stock. This could require ordering from a distributor, which may take time to arrive. In rare cases, parts may be discontinued, forcing the buyer to seek alternatives or wait for restocks.
3. **Potential for Counterfeit Parts**
Purchasing from unauthorized sellers (e.g., unscrupulous online marketplaces) carries the risk of receiving counterfeit or low-quality replicas. These parts may fail prematurely, void warranties, or even damage the motorcycle if they do not meet Harley s specifications. Always buy from reputable dealers or verified sellers.
4. **Installation Challenges for Novices**
While the installation process is manageable, inexperienced riders or those unfamiliar with motorcycle mechanics may struggle with tasks like aligning the cover, ensuring proper torque on bolts, or handling the weight of the engine components. Improper installation could lead to leaks, misalignment, or even damage to the transmission.
5. **Wear and Tear Over Time**
Even high-quality OEM parts are not immune to wear. The transmission top cover may eventually develop cracks, dents, or seal failures due to age, temperature fluctuations, or mechanical stress. This means it may need replacement again in the future, adding to long-term costs.
6. **Weight**
The transmission top cover is a heavy component, often made from metal. While this contributes to durability, it also adds to the overall weight of the motorcycle. For riders who prioritize lightweight modifications or fuel efficiency, this may be a minor drawback.
7. **Limited Customization Options**
Unlike aftermarket parts, the 66505-00 does not offer aesthetic or performance customization. If a rider wants to modify the appearance (e.g., paint, decals) or optimize performance (e.g., lighter materials), they would need to explore aftermarket alternatives, which may not always be as reliable.
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### **Conclusion**
The **Harley-Davidson 66505-00 Engine Transmission Top Cover** is a critical and high-quality component that ensures the reliability, longevity, and proper functioning of a Harley-Davidson s transmission system. Its OEM status guarantees compatibility, durability, and protection against contaminants, making it a sound investment for long-term ownership. However, the part s cost, potential installation challenges, and the risk of counterfeit products must be carefully considered.
For most riders, the benefits of using an OEM part outweigh the drawbacks, especially if the motorcycle is kept for extended periods or used for daily riding. The transmission top cover is not a part that should be neglected, as its failure can lead to costly repairs or transmission damage.
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### **Recommendation**
- **Buy from an Authorized Harley-Davidson Dealer or Reputable Retailer**: This ensures you receive a genuine part with warranty support and reduces the risk of counterfeit items.
- **Budget Accordingly**: If cost is a concern, weigh the long-term savings of preventing transmission issues against the upfront expense. Consider whether you can afford professional installation if needed.
- **Inspect for Damage Before Purchase**: If buying used or from a third party, thoroughly inspect the part for cracks, dents, or signs of wear. Test-fit it on your motorcycle if possible.
- **Follow Installation Guidelines**: Even if you are experienced, take your time during installation. Refer to Harley s service manual or consult a mechanic if unsure about torque specifications or alignment.
- **Maintain Regularly**: While the top cover itself may not require frequent maintenance, ensure the surrounding components (e.g., gaskets, bolts) are checked during routine service to prevent leaks or failures.
**Final Verdict**: The **66505-00 is highly recommended** for Harley-Davidson owners who prioritize reliability, longevity, and OEM quality. It is a worthwhile investment for maintaining the health of your motorcycle s transmission. However, if budget constraints are a major concern, weigh the risks of using aftermarket alternatives carefully, as they may not offer the same level of durability or compatibility.
Details:
Looks to be brand new doesn appear have ever been out of The package.
part #: 6650500 prices
- $24.99-$50.95
specifications cyclevintagee:
- for makes: Harley
- brand: Harley-davidson
- mpn: 66505-00
- part type: Cover Engine Tran
- machine type: Street Motorcycle
- color: Silver
- material: Chrome
- vintage part: Yes
- placement on vehicle: Right
- universal fitment: No
- compatible year: 99 01 Touring Models
- country of origin: Taiwan
offer cyclevintagee:
- quantity: 1
- availability: In Stock
- sold: 0
- options: Ship-to-home
- started: April 12, 2026
- best offers: True
returns cyclevintagee:
- policy: No Returns
payments cyclevintagee:
- credit card: Discover
- wallet: Paypal
- other
shipping cyclevintagee:
- cost: $9.99
- type: Fixed
- transit: 5-11 Days
- class: Standard
- carrier: USPS
- service: USPS Ground Advantage
seller cyclevintagee:
- # reviews: 11
- city: Apple Valley, California
- rating: 100.0%
general cyclevintagee:
- condition: Used
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