1. Motorcycle Body-Frame Parts For Sale
  2. sku: 11844920096090891
  3. YAMAHA 5H5-25389-00-00

YAMAHA 5H5-25389-00-00 Chain Puller Adjuster Tensioner

fits model: Yz80. make: Yamaha. year: 1974–1985.

5h5-25389-00-00 Yamaha 2 Chain Puller Adjuster Tensioner 1974-1985 Yz80 New Oem 5h5-25389-00

( Manufacturer Part Number: 5H5-25389-00-00 ), ( Type: Swingarm Chain Tensioner )

Review YAMAHA Chain Puller Adjuster Tensioner New Oem 5h5-25389-00 fits YZ80 1974–1985

The **Yamaha 5H5-25389-00-00 Chain Puller Adjuster/Tensioner** is a precision-engineered component designed specifically for Yamaha YZ80 models produced between 1974 and 1985, ensuring optimal chain tension and smooth operation in these classic dirt bikes. This high-quality tensioner is crafted to maintain the correct slack in the drive chain, preventing premature wear on both the chain itself and the sprockets while reducing the risk of chain stretch or slippage during aggressive riding. Built with durability in mind, the adjuster features a robust construction that resists bending or fatigue, even under the demanding conditions of off-road use. Its compact yet sturdy design integrates seamlessly with the bike s existing drivetrain, allowing for quick and easy installation without the need for specialized tools. The tensioner operates on a spring-loaded mechanism, providing consistent resistance to keep the chain taut while absorbing minor vibrations and shocks, thereby extending the lifespan of the entire drivetrain system. Whether restoring a vintage YZ80 to its original glory or maintaining a well-loved classic, this OEM replacement part ensures reliable performance, matching the original specifications for a perfect fit and seamless functionality. Ideal for both DIY enthusiasts and professional mechanics, this component is a must-have for anyone looking to preserve the integrity of their Yamaha s drivetrain while enhancing ride quality and longevity.

### Pros and Cons of buying a Yamaha 5H5-25389-00-00 Chain Puller/Adjuster Tensioner (1974 1985 YZ80)

#### **Pros:**

1. **Direct Compatibility** This part is specifically designed for the 1974 1985 Yamaha YZ80, ensuring a perfect fit without modifications. It eliminates the risk of sizing issues or misalignment that can occur with generic or aftermarket parts.

2. **Reliability** Yamaha s OEM (Original Equipment Manufacturer) components are built to meet the manufacturer s strict quality standards. This part is likely to be durable and perform consistently, reducing the likelihood of premature failure.

3. **Ease of Installation** Being an OEM part, it should integrate seamlessly with the existing drivetrain. The design is optimized for the YZ80 s chain tensioning system, making installation straightforward for someone with basic mechanical skills.

4. **Long-Term Performance** A well-functioning chain puller and tensioner prevent excessive chain slack, which can cause poor power transfer, accelerated wear on the chain and sprocket, and potential derailment. This part helps maintain optimal chain tension, improving overall drivetrain longevity.

5. **Cost-Effective for OEM Replacement** While not the cheapest option, this part may be more cost-effective in the long run than cheaper alternatives that fail frequently or require frequent adjustments. It also avoids the hassle of dealing with non-genuine parts that may not fit or function as intended.

6. **Maintenance Convenience** A properly functioning tensioner simplifies routine maintenance, such as chain lubrication and adjustment. This can save time and frustration during tune-ups.

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#### **Cons:**

1. **Price** OEM parts from Yamaha are typically more expensive than aftermarket or generic alternatives. If budget is a concern, this may be a significant drawback, especially if the part is only needed for a single function (e.g., replacing a worn tensioner).

2. **Limited Availability** OEM parts for older Yamaha models like the YZ80 may not be as widely stocked as newer parts. This could require ordering from specialty suppliers or waiting for delivery, which may not be ideal for urgent repairs.

3. **Overkill for Minor Issues** If the chain puller or tensioner is only slightly worn or the problem is minor (e.g., a loose bolt), purchasing a full OEM replacement might be excessive. In such cases, a cheaper aftermarket part or even a DIY fix (e.g., tightening bolts) could suffice.

4. **Potential for Counterfeit Parts** When purchasing OEM parts online, there is a risk of receiving counterfeit or refurbished parts that do not meet Yamaha s quality standards. Buying from authorized dealers or reputable sellers can mitigate this risk but adds to the cost.

5. **Skill Dependency** While installation is generally straightforward, improper handling (e.g., overtightening, misalignment) could damage the part or adjacent components. Someone without mechanical experience may struggle with installation or adjustments.

6. **Environmental and Ethical Considerations** Purchasing new OEM parts contributes to e-waste and resource consumption. If the part is still functional in another context (e.g., a spare for another bike), this could be seen as less sustainable than reusing or repurposing it.

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### **Conclusion:**

The Yamaha 5H5-25389-00-00 chain puller/adjuster tensioner is a high-quality, reliable OEM part that offers direct compatibility and long-term performance for the 1974 1985 YZ80. Its primary advantages lie in its precision fit, durability, and ease of integration, which justify the higher cost for those prioritizing reliability and convenience. However, the part s expense, limited availability, and potential overkill for minor issues may deter budget-conscious buyers or those seeking quick, low-cost fixes.

For most serious riders or those restoring a classic YZ80, the investment in an OEM part is worthwhile to ensure optimal drivetrain function and longevity. If cost is a major concern, alternatives like high-quality aftermarket parts (e.g., from reputable brands like KMC or DID) could be considered, provided they meet the same specifications and fit requirements.

### **Recommendation:** - **Buy the OEM part if:**

- You value reliability and long-term performance.

- You are restoring or maintaining a YZ80 that you intend to keep for an extended period.

- You have access to an authorized Yamaha dealer or a trusted supplier to avoid counterfeit parts.

- The part is needed as part of a full rebuild or major maintenance project where quality is critical.

- **Consider alternatives if:**

- You are on a tight budget and the part is only slightly worn.

- You are comfortable with aftermarket brands and can verify their compatibility with your bike.

- You can source a refurbished or used OEM part from a reliable seller to reduce costs.

- The issue is minor (e.g., a loose bolt), and a simpler fix is possible.

Ultimately, weigh the trade-offs between upfront cost and long-term benefits to determine whether the OEM part aligns with your needs and priorities.

Details:

part #: 5h5253890000 price

  • $14.73

specifications fendeframat:

  • for models: Yz80
  • for makes: Yamaha
  • for years: 1974-1985
  • mpn: 5h5-25389-00-00
  • type: Swingarm Chain Tensioner

shipping fendeframat:

  • transit: 4-10 Days
  • service: Standard
  • type: Fixed
  • cost: $0.00
  • class: Standard

general fendeframat:

  • Motorcycle Scooter Parts Accessories > Body Frame > Other Body Frame
  • condition: New

returns fendeframat:

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

seller fendeframat:

  • rating: 100.0%
  • city: Canon, Georgia
  • # reviews: 440

offer fendeframat:

  • sold: 0
  • options: Ship-to-home
  • quantity: 1
  • availability: In Stock
  • started: February 8, 2026

payments fendeframat:

  • credit card: Discover
  • wallet: Apple-pay
  • other
for models: yz80, for makes: yamaha, for years: 1974-1985, type: swingarm chain tensioner,
category: motorcycle parts > motorcycle scooter parts accessories > body frame, sku: 11844920096090891,
Yamaha 5H5-25389-00-00 Is Similar To:
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1 offer $14.73 USD
  • New. Offer #1 priced at $14.73 + $6.99 shipping estimate = $21.72* total. Designed to meet factory specifications for perfect fit, performance, and reliability. This is a Genuine Yamaha OEM Replacement Part New Old Stock (NOS).+$6.99 shipping

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