YAMAHA 90389-39023 Sheave Bushing Nos

( Manufacturer Part Number: 90389-39023 ), ( Part Type: Bushing )

Review YAMAHA Snowmobile 1980 81 Primary Sheave Bushing Nos Oem fits ET300 ET250 1979-84–1980-81

Introducing the Yamaha 90389-39023 sheave bushings, specifically designed for use with Yamaha ET300 and ET250 motorcycles manufactured between 1979 and 1984. These bushings are an essential component of the drive system, ensuring a smooth and efficient power transmission from the engine to the drive wheels.

The sheave bushings are precision-engineered to provide a perfect fit for the specified motorcycle models. They are made from high-quality materials, including a durable, heat-resistant rubber compound for the outer bushing and a robust steel inner bushing. This combination offers excellent load-bearing capacity, resistance to wear, and the ability to withstand the high temperatures generated during operation.

The outer bushings feature a tapered design that facilitates easy installation and removal, while their inside diameter is precisely machined to accommodate the corresponding drive pulleys. The inner bushings, on the other hand, provide a snug fit to the drive shafts, ensuring minimal play and maintaining the alignment of the drive system.

These sheave bushings are an excellent replacement option for worn-out or damaged originals. Their high-quality construction guarantees superior performance and longevity, allowing riders to enjoy a more enjoyable and reliable riding experience. Additionally, the availability of these bushings ensures that Yamaha ET300 and ET250 owners can maintain their motorcycles with authentic, OEM-grade components.

In summary, the Yamaha 90389-39023 sheave bushings are an essential upgrade for any Yamaha ET300 or ET250 motorcycle manufactured between 1979 and 1984. Their precise fit, robust construction, and superior materials make them an excellent investment for those seeking to enhance their motorcycle's performance and reliability.

A Detailed Analysis of Buying Yamaha ET300/ET250 Sheave Bushings (Yamaha 90389-39023) for 1979-1984 Motorcycles

Yamaha ET300 and ET250 motorcycles, produced between 1979 and 1984, have been popular choices for riders due to their performance and style. Over time, the sheave bushings on these motorcycles may wear out, requiring replacement. In this analysis, we will assess the pros and cons of buying Yamaha 90389-39023 sheave bushings.

1. OEM Quality: These sheave bushings are original equipment manufactured (OEM) by Yamaha, ensuring a perfect fit and optimal performance.

2. Durability: Yamaha's reputation for quality and durability is well-known. These bushings are designed to withstand the rigors of motorcycle use.

3. Reduced Vibration: Worn-out sheave bushings can cause excessive vibration, which can be uncomfortable for the rider and potentially lead to mechanical issues. Replacing them with new bushings can help reduce vibration, improving the riding experience.

4. Improved Performance: Properly functioning sheave bushings ensure the drive belt runs smoothly, which can lead to improved engine performance and increased power transmission efficiency.

1. Cost: OEM parts, such as these sheave bushings, can be more expensive than aftermarket alternatives.

2. Availability: Depending on the specific model and year of the Yamaha ET300 or ET250, these bushings may be hard to find at local dealerships or repair shops, requiring an online purchase.

3. Installation: Installing the new bushings may require some mechanical skill and tools, which could add to the overall cost and time investment.

The decision to buy Yamaha 90389-39023 sheave bushings for your 1979-1984 ET300 or ET250 motorcycle depends on your priorities. If you value OEM quality, durability, and optimal performance, these bushings are an excellent choice. However, if cost and availability are your primary concerns, you may want to consider aftermarket alternatives. Ultimately, the investment in new sheave bushings can lead to a smoother, more enjoyable riding experience and potentially save you from more costly mechanical issues down the road.

If you are an enthusiast who values the originality and performance benefits of OEM parts, or if you have experienced issues with worn-out sheave bushings, investing in Yamaha 90389-39023 sheave bushings is a recommended upgrade for your 1979-1984 Yamaha ET300 or ET250 motorcycle. If budget is a concern, you may want to explore aftermarket alternatives while keeping in mind that they might not offer the same level of performance and fit as OEM parts.

Details:

Please reference the part number and photos for best understanding of model fitment. Yamaha Snowmobile 1980 81 ET250 1979-84 ET300 Primary Sheave Bushing NOS OEM. This part does not include the original packaging.

part #: 9038939023 prices

• $31.69-$64.99

specifications enginesnowmobile:

• for models: Et300, Et250
• for makes: Yamaha
• for years: 1979-84-1980-81
• mpn: 90389-39023
• part type: Bushing

returns enginesnowmobile:

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

general enginesnowmobile:

• condition: New
• Snowmobile Parts > Engines Components > Snowmobile Engine Components

seller enginesnowmobile:

• city: Boyne City, Michigan
• rating: 99.8%
• # reviews: 61641

offer enginesnowmobile:

• quantity: 1
• availability: In Stock
• options: Ship-to-home
• sold: 0
• started: June 24, 2025

shipping enginesnowmobile:

• carrier: USPS, UPS
• transit: 3-8 Days
• cost: $5.50
• service: USPS Ground Advantage, USPS Priority Mail, UPS Ground, UPS Next Day Air Saver
• type: Fixed
• class: Standard, Expedited, One-day

payments enginesnowmobile:

• credit card: Mastercard
• other
• wallet: Paypal

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