HARLEY DAVIDSON 31070-58 Generator Drive Gear 58-69

( Brand: Harley Davidson ), ( Manufacturer Part Number: 31070-58 ), ( Part Type: Generator Drive Gear ), ( Vintage Part: Yes ), ( Compatible Year: 58-69 ), ( Country Of Origin: United States )

Review HARLEY DAVIDSON 58-69 Generator Drive Gear

The **Harley-Davidson 31070-58 (58-69 Series Generator Drive Gear)** is a meticulously engineered, high-performance component designed exclusively for Harley-Davidson motorcycles produced between the late 1950s and the late 1960s, specifically the iconic **58-69 Series** models. This precision-crafted gear is a critical part of the motorcycle s electrical system, serving as the driving force behind the generator, which powers the bike s lighting, ignition, and other electrical accessories. Crafted from durable **heat-treated alloy steel**, this gear is built to withstand the rigorous demands of high-revving engines while maintaining optimal performance and longevity. Its **serrated teeth** are precision-machined to ensure smooth, consistent engagement with the generator s internal components, minimizing wear and preventing premature failure a common issue in aftermarket or poorly manufactured replacements. The gear s **interchangeable fitment** across multiple 58-69 Series engines, including the **FLH, FL, FX, and FXE models**, makes it a versatile upgrade choice for restorers, custom builders, and enthusiasts seeking to restore or enhance the reliability of their classic Harley-Davidson. Whether used in a full rebuild or as a standalone replacement for a worn-out original part, this gear delivers the **seamless power transmission** essential for maintaining the electrical integrity of these legendary machines. Its **OEM-level quality** ensures compatibility with stock wiring and generator setups, making it an ideal choice for those who demand authenticity and performance without compromise. For collectors and riders who appreciate the artistry of classic Harley-Davidson engineering, this generator drive gear represents a small yet vital piece of the puzzle one that keeps the spirit of these timeless motorcycles running strong for generations to come.

### **Pros and Cons of buying a Harley-Davidson 31070-58 (58-69 Generator Drive Gear)**

1. **Compatibility with Classic Harley-Davidsons** This gear is designed specifically for Harley-Davidson engines from the 1958 to 1969 model years, ensuring a precise fit for models like the Sportster, Shovelhead, and Panhead engines. It is a direct replacement part, reducing the need for modifications.

2. **Reliability and Durability** Harley-Davidson parts, including generator drive gears, are built to withstand high stress and prolonged use. The 58-69 series engines were robust, and this gear is a proven component for maintaining their performance.

3. **Easy Installation** As an OEM (Original Equipment Manufacturer) part, it is designed to be installed without extensive modifications. This makes it a straightforward upgrade or replacement for mechanics with basic tooling.

4. **Maintenance of Original Performance** Using a genuine Harley-Davidson part helps preserve the engine s original power output and efficiency. It avoids the potential issues that come with aftermarket parts that may not match the factory specifications.

5. **Availability of Support and Documentation** Harley-Davidson provides technical support, manuals, and compatibility guides for their parts. This ensures that buyers can access reliable information if they encounter installation or performance issues.

6. **Long-Term Cost Savings** While the upfront cost may be higher than some aftermarket alternatives, a genuine Harley-Davidson part is less likely to fail prematurely, reducing long-term repair costs.

7. **Preservation of Vintage Value** For collectors and enthusiasts, using original or high-quality replacement parts helps maintain the authenticity and value of classic Harley-Davidsons. This is particularly important for restored or show bikes.

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1. **Higher Cost Compared to Aftermarket Alternatives** Genuine Harley-Davidson parts are typically more expensive than aftermarket equivalents. For budget-conscious buyers, this can be a significant drawback, especially if multiple parts are needed.

2. **Limited Availability** Harley-Davidson parts, particularly for older models, may not be as widely stocked as aftermarket components. Buyers may need to order from specialty dealers or wait for shipping, which can delay repairs or restorations.

3. **Potential for Overkill for Minor Repairs** If the generator drive gear is the only failing component in an otherwise well-maintained engine, purchasing a genuine Harley-Davidson part may be unnecessary. In such cases, an aftermarket part that meets the same specifications could suffice at a lower cost.

4. **Weight and Size Considerations** Harley-Davidson parts are often heavier and bulkier than aftermarket alternatives. This may not be an issue for most riders but could be a minor inconvenience during installation or storage.

5. **Depreciation Risk for Non-Running Bikes** If the bike is not in running condition and the part is purchased as a spare, there is a risk that the bike may never be restored or sold, leaving the part unused. This could be a financial loss if the part is expensive.

6. **Mixed Quality Perceptions** While Harley-Davidson parts are generally reliable, some buyers may have preconceived notions that OEM parts are inferior to aftermarket brands known for innovation or performance enhancements. This perception can influence purchasing decisions, even if the part is functionally identical.

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The Harley-Davidson 31070-58 generator drive gear is a high-quality, reliable, and compatible part for restoring or maintaining classic Harley-Davidsons from 1958 to 1969. Its advantages lie in its precision engineering, durability, and support from the manufacturer, making it an ideal choice for enthusiasts who prioritize authenticity and long-term performance. However, the higher cost and potential availability issues may deter buyers who are working on a tight budget or need parts quickly.

For most serious collectors, restorers, or riders who value originality and performance, the investment in a genuine Harley-Davidson part is justified. Conversely, those on a budget or seeking minor repairs may find aftermarket alternatives more cost-effective without sacrificing quality.

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- You are restoring or maintaining a classic Harley-Davidson from 1958 to 1969 and prioritize OEM quality and compatibility.

- You have the budget to invest in genuine parts and are willing to wait for shipping if necessary.

- You value the long-term reliability and potential resale value of using original components.

- You are working with a limited budget and the part is not critical to the bike s overall condition.

- You need the part urgently and cannot wait for a genuine Harley-Davidson component to arrive.

- The bike is primarily for parts or a project that may not be completed, and you prefer to save costs where possible.

Ultimately, the decision depends on your priorities whether you value authenticity, long-term reliability, and the preservation of your bike s value or if cost and convenience are more important factors. For most classic Harley-Davidson enthusiasts, the genuine part is the best choice.

Details:

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part #: 3107058 prices

• $20.00-$39.95

specifications cyclevintagee:

• for makes: Harley
• brand: Harley Davidson
• mpn: 31070-58
• part type: Generator Drive Gear
• vintage part: Yes
• compatible year: 58-69
• country of origin: United States

general cyclevintagee:

• condition: Used
• Parts Accessories > Motorcycle Scooter Parts Accessories > Other Motorcycle Scooter Parts Accessories

offer cyclevintagee:

• quantity: 1
• options: Ship-to-home
• started: May 24, 2026
• availability: In Stock
• sold: 0

returns cyclevintagee:

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

shipping cyclevintagee:

• class: Expedited
• transit: 5-9 Days
• service: USPS Priority Mail
• type: Fixed
• carrier: USPS
• cost: $11.50

payments cyclevintagee:

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

seller cyclevintagee:

• # reviews: 2466
• city: Arlington, Washington
• rating: 100.0%

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