KPMI 20-21850 Racing Valve Spring Kit Lift .625

( Brand: Kpmi ), ( Manufacturer Part Number: 20-21850 ), ( Part Type: Valve Spring Lift )

Review KPMI Racing Valve Spring Kit .625 Lift For Harley Davidson Model's fits 2017

Introducing the K&N Performance Products (KNMI) 20-21850 Racing Valve Spring Kit, specifically designed for Harley-Davidson motorcycles manufactured in 2017. This premium valve spring kit is a must-have upgrade for riders seeking enhanced performance and reliability from their engine.

The KNMI Racing Valve Spring Kit boasts an impressive lift capacity of 625 lbs. (283.8 kg), ensuring optimal valve control under high RPM and boosted power conditions. Each spring is meticulously crafted from high-temperature, heat-treated chrome-silicon steel to provide superior strength and durability.

This kit includes eight valve springs (four intake and four exhaust), two sets of retainers, and eight titanium retainers. The use of titanium retainers significantly reduces friction and weight, contributing to improved engine response and performance.

The K&N Racing Valve Spring Kit is engineered to be a direct replacement for OEM components, ensuring a seamless installation process. Each spring is designed to fit perfectly within the valve guides and retainers, minimizing the risk of damage during installation.

The KNMI 20-21850 Racing Valve Spring Kit is an excellent choice for Harley-Davidson riders looking to extract maximum power from their engines. With its increased lift capacity, high-quality materials, and improved design, this kit delivers unparalleled performance and reliability for your motorcycle. Upgrade today and take your riding experience to new heights!

Pros and Cons of Buying KPMI 20-21850 Racing Valve Spring Kit for Harley Davidson 2017

The KPMI 20-21850 Racing Valve Spring Kit is designed to provide improved performance and durability for Harley Davidson 2017 engines. Like any aftermarket part, it has its advantages and disadvantages. Here's a detailed analysis of both:

1. Enhanced Performance: The racing valve springs increase the lift capacity, allowing for better engine breathing and increased power output.

2. Improved Durability: The KPMI racing valve spring kit is made from high-quality materials, ensuring longer lifespan and better resistance to engine stress.

3. Reduced Valve Train Noise: The upgrade may result in reduced valve train noise, leading to a smoother and quieter engine operation.

4. Suitability for High-Performance Modifications: The racing valve spring kit is an ideal choice for those who plan to modify their Harley Davidson engine for higher performance.

1. Cost: The KPMI racing valve spring kit is an investment, and the cost may be a significant deterrent for some riders.

2. Installation Complexity: Installing the racing valve springs may require professional assistance, adding to the overall cost.

3. Potential Compatibility Issues: Ensure the kit is compatible with your specific Harley Davidson model and engine configuration to avoid potential issues.

4. Additional Maintenance: The racing valve springs may require more frequent maintenance checks due to the increased performance and stress on the engine components.

The KPMI 210-21850 Racing Valve Spring Kit offers several advantages for riders seeking enhanced performance and durability for their Harley Davidson 2017 engine. However, the investment required and potential installation complications may deter some. Ultimately, the decision to purchase this kit depends on your riding preferences, budget, and performance goals. If you're planning high-performance modifications or seeking a quieter engine, the benefits may outweigh the costs.

If you're considering this upgrade, we recommend conducting thorough research on the product and its compatibility with your Harley Davidson model. Consulting with a professional mechanic or contacting KPMI customer support can help clarify any doubts and ensure a successful installation. Additionally, ensure you have the necessary budget and resources for the installation process.

Details:

Each spring is manufactured with proprietary advanced design simulation to ensure precise fitment and consistent performance. Heat-treated and stress-relieved for maximum performance. Feature: Shot preened to improve fatigue life and resistance cracking. Shot preened to improve fatigue life and longevity.

Feature: Engineered for optimal cam and spring harmonics, reducing vibration enhancing engine stability. These springs are ideal for riders seeking to improve engine responsiveness and durability, especially in high-performance or racing applications. No other parts are included or can be substituted, selected, changed. KPMI 20-21850 Racing Valve Spring Kit .625 Lift for Harley Davidson 2017 model's, MPN:20-21850: This part racing valve spring kit is designed model's including FLHTKL Electra Glide Ultra Limited Low, FLTRXS Road Special, FLHR King, FLHTCU Classic, FLHTCUTG Teri FLHTK Limited, FLHX Street Glide, FLHXSE CVO FLTR and FLTRU.

Features: Material: Kobe Super-Clean Chrome Silicon wire for durability. Crafted from premium Kobe Super-Clean Chrome Silicon wire, these springs deliver exceptional performance and longevity. Actual product may vary from picture. Proper installation ensures maximum benefit, and these springs are compatible with a wide range of Harley Davidson touring model's from 2017.

Trust Kpmi engineering expertise for your high-performance valve spring needs, backed by innovative design and rigorous manufacturing standards. The springs are designed to operate efficiently at .625 inch lift, providing reliable valve control during high-performance riding. Engineered with advanced simulation for precise fitment. Designed for .625 inch lift to handle high RPM operation.

Some items pictured may not be included. Feature: Heat-treated and stress-relieved to withstand high PMS intensive use.

part #: 2021850 prices

• $256.77-$315.03

specifications motoralph:

• for makes: Harley, Davidson
• for years: 2017
• brand: Kpmi
• mpn: 20-21850
• part type: Valve Spring Lift

shipping motoralph:

• type: Fixed
• service: Standard
• cost: $12.99
• class: Standard
• transit: 3-6 Days

returns motoralph:

• time: 30 Days
• paid by: Seller
• policy: Returns Accepted

offer motoralph:

• quantity: 2
• availability: In Stock
• started: April 19, 2026
• options: Ship-to-home
• sold: 0

general motoralph:

• condition: New
• Motors > Parts Accessories > Other

seller motoralph:

• # reviews: 47465
• rating: 99.9%
• city: Danville, Virginia

payments motoralph:

• other
• credit card: Discover
• wallet: Google-pay

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