DRAG SPECIALTIES 139685 Piston Set 3.498 .005 8.5
fits model: Ds. make: Harley, Davidson.
( Brand: Drag Specialties ), ( Manufacturer Part Number: 139685 ), ( Part Type: Piston ), ( Warranty Details: See Manufacturer )
Review DRAG SPECIALTIES Piston Set 3.498 Inch .005 Bore 8.5 Harley Davidson fits DS
Introducing the 139685 DS Piston Set 3.498 005 8.5 from Harley-Davidson, a premium replacement option for your Harley-Davidson engine. This piston set is specifically designed to deliver exceptional performance, reliability, and durability for your motorcycle.
Each piston in this set is meticulously crafted from high-quality forged aluminum alloy. This material provides superior strength and rigidity, ensuring that your engine can handle the demands of high-performance riding. The pistons feature a compression height that measures 3.498 inches (8.83 cm), making them an ideal fit for select Harley-Davidson models.
The piston tops are finished with a precision-machined, flat-top design that ensures perfect contact with the engine's cylinder head. This design promotes even combustion and optimal engine efficiency, leading to improved power output and better fuel economy.
The piston skirts are designed with a cooled, nitrided finish that helps reduce friction and wear. This finish also enhances the pistons' resistance to detonation and pre-ignition, ensuring a longer service life and smoother engine operation.
The piston rings included in this set are precision-manufactured to ensure a snug fit and optimal sealing performance. The rings are designed to minimize compression loss and promote efficient combustion, leading to improved engine performance and increased power output.
This 139685 DS Piston Set 3.498 005 8.5 from Harley-Davidson is an excellent choice for riders who demand the best from their motorcycle. Whether you're looking to enhance your bike's performance, improve its reliability, or simply keep it running at its best, this piston set is a must-have upgrade for your Harley-Davidson engine.
In summary, the 139685 DS Piston Set 3.498 005 8.5 from Harley-Davidson is a high-quality, performance-enhancing upgrade for your Harley-Davidson engine. With its forged aluminum alloy construction, flat-top piston design, cooled, nitrided finish, and precision-manufactured piston rings, this piston set delivers exceptional strength, durability, and efficiency for your motorcycle.
Pros and Cons of Buying a 139685 DS Piston Set 3.498 005 8.5 for Harley Davidson Motorcycles
Introduction:The 139685 DS Piston Set 3.498 005 8.5 is a popular aftermarket option for Harley Davidson motorcycle owners wanting to upgrade their engine components. This piston set comes with several benefits and drawbacks that are essential to consider before making a purchase. In this article, we will discuss the pros and cons of buying this piston set for your Harley Davidson motorcycle.
Pros:1. Enhanced Performance: The 139685 DS Piston Set is designed to provide better performance by increasing engine horsepower and torque. This results in a smoother and more responsive riding experience.
2. Durability: These pistons are made from high-quality materials and are designed to withstand the rigors of heavy usage. They are known to last longer than OEM (original equipment manufacturer) pistons, making them a worthwhile investment for those who ride frequently.
3. Customization: Aftermarket piston sets like the 139685 DS offer the opportunity to customize the engine to suit individual riding styles and preferences. This can include adjusting compression ratios for improved power output or optimizing piston weights for better fuel efficiency.
4. Cost-Effective: In the long run, investing in a high-performance aftermarket piston set can save money by reducing the need for frequent engine repairs and replacements.
Cons:1. Complex Installation: Installing aftermarket piston sets can be a complex and time-consuming process. It typically requires professional expertise and specialized tools, which can add to the overall cost of the upgrade.
2. Compatibility: Ensure that the 139685 DS Piston Set is compatible with your specific Harley Davidson model before making a purchase. Incorrectly installed piston sets can lead to engine damage and decreased performance.
3. Risk of Engine Damage: Installing aftermarket piston sets carries a risk of engine damage if not done correctly. Improperly installed pistons can cause engine misfires, overheating, or even catastrophic engine failure.
4. Higher Upfront Cost: Compared to OEM piston sets, aftermarket options like the 139685 DS Piston Set can have a higher upfront cost. However, the long-term benefits, such as increased performance and durability, may outweigh this initial investment.
Conclusion:The 139685 DS Piston Set 3.498 005 8.5 is an excellent option for Harley Davidson motorcycle owners looking to enhance engine performance and durability. While the upfront cost and installation complexity are considerations, the long-term benefits, such as increased horsepower, improved torque, and extended engine life, make this a worthwhile investment for those who ride frequently. Before making a purchase, ensure that the piston set is compatible with your specific Harley Davidson model and consider seeking professional installation to minimize the risk of engine damage.
Recommendation:To maximize the benefits of the 139685 DS Piston Set and ensure a successful installation, consider working with a reputable Harley Davidson dealer or engine specialist. They can provide expert guidance on compatibility, installation, and customization options to help you get the most out of your investment. Additionally, be sure to follow all manufacturer instructions carefully during the installation process to minimize the risk of engine damage.
Details:
DS Piston Set 3.498 .005 Bore 8.5:1 Harley Davidson: Pistons come complete with wrist pins and cir clips sold in pairs. Over Stock Stroke 4.25 in. Piston rings are not included. Harley Davidson CVO FXR2 1999.
Harley Davidson CVO FXR3 1999.
specifications pistondon:
- for models: Ds
- for makes: Harley, Davidson
- brand: Drag Specialties
- mpn: 139685
- part type: Piston
- warranty details: See Manufacturer
offer pistondon:
- options: Ship-to-home
- started: January 1, 2026
- sold: 0
- quantity: 19
- availability: In Stock
payments pistondon:
- wallet: Google-pay
- credit card: Discover
- other
returns pistondon:
- paid by: Seller
- time: 30 Days
- policy: Returns Accepted
shipping pistondon:
- class: Standard
- type: Fixed
- service: UPS Ground
- carrier: UPS
- transit: 6-9 Days
- cost: $0.00
seller pistondon:
- rating: 99.7%
- city: Grand Rapids, Michigan
- # reviews: 664325
general pistondon:
- condition: New
- Motorcycle Scooter Parts Accessories > Engines Engine Parts > Pistons, Rings Piston Kits
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