1. Motorcycle & Scooter Starter Motors Parts
  2. sku: 7856303854738604
  3. HARLEY DAVIDSON 31525-90

HARLEY-DAVIDSON 31525-90 Starter Idler Gear

fits model: Dyna, Sportster. make: Harley.

31525-90 Harley-davidson Starter Dyna Sportster Idler Gear

( Brand: Harley-davidson ), ( Manufacturer Part Number: 31525-90 ), ( Type: Starter Motor ), ( Country Of Origin: Japan )

Review HARLEY DAVIDSON Starter Idler Gear fits DYNA SPORTSTER

Introducing the Harley-Davidson 31525-90 Dyna Sportster Idler Gear, a critical component of your Harley-Davidson motorcycle's drivetrain system. This idler gear is meticulously engineered to deliver smooth and efficient power transmission from the primary drive to the rear wheel.

Crafted from high-quality steel, this idler gear boasts exceptional durability and strength. Its precision-machined teeth ensure accurate engagement with the drive and driven gears, while its carefully calculated dimensions guarantee optimal alignment and balance.

The Harley-Davidson 31525-90 Idler Gear is specifically designed for use on Dyna Sportster models. Its compact design allows it to fit seamlessly into your motorcycle's drivetrain, minimizing any potential vibrations or unwanted noises. This component is also known for its quiet operation, providing a more enjoyable riding experience.

This idler gear is an essential replacement part for motorcycles that have worn-out or damaged gears. Installing a new Harley-Davidson OEM idler gear ensures the longevity and reliability of your drivetrain system, maintaining the overall performance and functionality of your motorcycle.

If you're in the market for a high-quality, durable, and reliable idler gear for your Harley-Davidson Dyna Sportster, look no further than the Harley-Davidson 31525-90. With its unwavering commitment to excellence and attention to detail, you can trust that this idler gear will exceed your expectations and keep your motorcycle running at its best.

Pros and Cons of Buying Harley-Davidson 31525-90 Starter Idler Gear for a Dyna Sportster

The Harley-Davidson 31525-90 starter idler gear is a crucial part of the motorcycle's starting system. Replacing an old or worn-out idler gear can help ensure smooth and efficient starting. In this analysis, we will discuss the potential advantages and disadvantages of purchasing this specific part.

Pros:

1. Improved Starting Performance: A new idler gear can help reduce wear on other starting system components, ensuring smoother and more consistent starting.

2. Reduced Noise: A worn-out idler gear can cause unwanted noise during starting. A new one can help minimize this issue.

3. Enhanced Durability: Harley-Davidson idler gears are designed to withstand the rigors of regular use, ensuring a long service life.

4. OEM Quality: This part is an original equipment manufacturer (OEM) part, meaning it is specifically designed and manufactured to fit and function optimally with your Harley-Davidson motorcycle.

Cons:

1. Cost: Original equipment manufacturer parts can be more expensive than aftermarket alternatives.

2. Availability: Depending on your location and the availability of stock, it might take some time to receive the part.

3. Installation Complexity: Installing the idler gear might require some mechanical skills and knowledge.

Conclusion:

The Harley-Davidson 31525-90 starter idler gear is an essential component of your motorcycle's starting system. While the OEM part comes with advantages like improved starting performance, reduced noise, enhanced durability, and OEM quality, it also comes with drawbacks such as cost, availability, and installation complexity. Ultimately, the decision to purchase this part depends on your personal preferences, budget, and technical abilities.

Recommendation:

If you prioritize OEM quality, long-term durability, and seamless compatibility with your Harley-Davidson Dyna Sportster, the 31525-90 starter idler gear is an excellent choice. However, if you're looking for a more cost-effective alternative, you might consider researching aftermarket options. Regardless of your decision, always ensure the part is compatible with your specific motorcycle model and year.

Details:

NOS Harley #31525-90 starter idler gear.

part #: 3152590 price

  • $40.00

specifications scostarters:

  • for models: Dyna, Sportster
  • for makes: Harley
  • brand: Harley-davidson
  • mpn: 31525-90
  • type: Starter Motor
  • country of origin: Japan

offer scostarters:

  • started: April 7, 2026
  • availability: In Stock
  • sold: 0
  • quantity: 3
  • options: Ship-to-home

shipping scostarters:

  • transit: 3-8 Days
  • type: Fixed
  • class: Standard
  • cost: $0.00
  • service: USPS Ground Advantage
  • carrier: USPS

returns scostarters:

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

payments scostarters:

  • other
  • credit card: Mastercard
  • wallet: Apple-pay

seller scostarters:

  • # reviews: 40337
  • city: Danbury, North Carolina
  • rating: 99.8%

general scostarters:

  • condition: New
  • Motorcycle Scooter Parts Accessories > Electrical Ignition Components > Starter Motors
for models: dyna, sportster, for makes: harley, type: starter motor, country of origin: japan,
category: motorcycle parts > motorcycle scooter parts accessories > electrical ignition components > starter, sku: 7856303854738604,

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  • Offer #1: $40.00 price + $0.00 shipping estimate = $40.00* total. Dead parts MC patch Dead Parts MC Patch. NOS Harley # starter idler gear.FREE SHIPPING

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