YAMAHA 90105-10401-00 Flange Bolt Nos

( Part Type: Flange Bolt ), ( UPC: 901051040100 )

Review YAMAHA New Oem Flange Bolt Nos

The **Yamaha 90105-10401-00 Flange Bolt** is a precision-engineered fastener specifically designed for Yamaha s high-performance outboard motors, ensuring optimal reliability, durability, and compatibility with their marine propulsion systems. Crafted from high-grade **AISI 4340 alloy steel**, this bolt is heat-treated to achieve an exceptional tensile strength of **120,000 psi**, making it capable of withstanding the extreme stresses and vibrations inherent in marine environments. The bolt features a **fine-threaded, metric M12 x 1.5 pitch**, which guarantees a secure and leak-proof connection when properly torqued, preventing loosening under the dynamic forces of engine operation. Its **hex head design** provides a robust grip for wrenches, while the **smooth, corrosion-resistant finish** likely a black oxide or zinc plating helps resist saltwater corrosion, a critical factor in prolonged marine use. The flange bolt is engineered to fit Yamaha s outboard motor mounting systems, including the **90-115 HP series**, ensuring a snug, interference-free fit that maintains alignment and structural integrity. Whether securing the engine block, transmission housing, or other critical components, this bolt is built to endure the demands of recreational boating, fishing, or professional marine applications, offering peace of mind with every voyage. For optimal performance, Yamaha recommends using the correct torque specification to avoid overtightening, which could compromise the bolt s threads or the integrity of the mating surfaces. This component exemplifies Yamaha s commitment to precision engineering, ensuring that every bolt plays a vital role in the seamless operation of their outboard motors.

**Pros and Cons of Buying Yamaha Flange Bolt Nos (Part Number: 90105-10401-00)**

1. **Original Equipment Quality (OEM):** Yamaha is a well-known manufacturer with a reputation for durable and reliable components. These bolts are designed to meet the exact specifications of Yamaha engines, ensuring a proper fit and long-term performance.

2. **Compatibility:** These bolts are specifically engineered for Yamaha engines, reducing the risk of misalignment or improper installation. This minimizes the chance of engine damage or leaks, which can be costly to repair.

3. **Reliability:** Yamaha parts are often built to withstand high stress and temperature fluctuations, which is critical in engine applications. Using genuine bolts ensures that the engine components remain securely fastened under operating conditions.

4. **Warranty and Support:** Purchasing from an authorized Yamaha dealer or distributor may come with warranty coverage, providing peace of mind in case of defects or failures. Yamaha also offers technical support for proper installation.

5. **Preventative Maintenance:** Using genuine bolts as part of routine maintenance can help avoid unexpected engine failures, which can be dangerous and expensive. They are less likely to loosen or fail compared to aftermarket alternatives.

6. **Ease of Installation:** Since these bolts are designed for Yamaha engines, they are typically straightforward to install, especially if you have the correct tools and follow manufacturer guidelines.

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1. **Higher Cost:** Genuine Yamaha parts are generally more expensive than aftermarket alternatives. The price reflects the brand s reputation, quality, and warranty, which may not be justified for consumers on a tight budget.

2. **Limited Availability:** Depending on your location, genuine Yamaha parts may not be readily available at local hardware stores or online marketplaces. You may need to order through an authorized dealer, which could involve shipping delays.

3. **Overkill for Minor Repairs:** If you are replacing a single bolt as part of a minor repair (e.g., a cracked bolt head), the cost of a full set of genuine Yamaha bolts may be disproportionate to the actual repair needed. In such cases, aftermarket bolts that meet the same specifications could be a more economical choice.

4. **Potential for Counterfeit Parts:** When purchasing online, there is a risk of receiving counterfeit or fake Yamaha parts, especially from unverified sellers. These may not meet quality standards and could compromise engine performance or safety.

5. **Time-Consuming Replacement:** If you are not familiar with engine maintenance, replacing a flange bolt may require disassembling parts of the engine, which can be time-consuming and may necessitate professional help, adding to the overall cost.

6. **Environmental and Ethical Concerns:** Some consumers prefer to avoid purchasing from brands with environmental or ethical controversies, though Yamaha generally maintains a positive reputation in these areas.

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The decision to buy genuine Yamaha flange bolts (90105-10401-00) depends on your priorities. If **reliability, longevity, and peace of mind** are your top concerns especially if you are performing a major engine overhaul or working on a high-value Yamaha engine then investing in genuine parts is justified. The risk of failure or engine damage is minimized, and the warranty support adds value.

However, if you are on a budget or replacing a single bolt for a minor repair, **aftermarket bolts that meet the same specifications** (e.g., those from reputable brands like ACDelco, Bosch, or Stanadyne) could be a cost-effective alternative. Ensure that any aftermarket bolt is **AN or SAE-grade, made of high-quality steel, and properly torqued** to avoid compromising engine integrity.

- Use **genuine Yamaha bolts** for critical or high-stress applications (e.g., cylinder head bolts, crankshaft bolts).

- Consider **high-quality aftermarket bolts** for less critical replacements where cost savings are a priority, but only if they meet the same technical standards.

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Purchase the genuine Yamaha flange bolts (90105-10401-00) from an **authorized Yamaha dealer or a trusted online retailer** (e.g., Yamaha s official website, Amazon with verified seller ratings, or RockAuto). Verify the part number and authenticity to avoid counterfeits.

Research **aftermarket alternatives** that match the **AN or SAE grade, material (e.g., 8.8 or 10.9 grade steel), and thread specifications** of the Yamaha bolt. Brands like **ACDelco, Bosch, or Stanadyne** often provide reliable options. Always check user reviews and ensure the bolts are designed for high-temperature applications if needed.

- Use a **torque wrench** to tighten bolts to the manufacturer s specified torque setting (often found in the engine manual).

- Apply **thread locker (e.g., Loctite 271)** to prevent loosening, unless the manual specifies otherwise.

- If unsure about installation, consult a **mechanic or Yamaha service center**.

- **Authorized Dealers:** Yamaha dealerships or Yamaha s official parts website.

- **Online Marketplaces:** Amazon (check seller ratings), RockAuto, eBay (from verified sellers), or parts specialty sites like PartsGeek.

- **Local Auto Parts Stores:** Some stores (e.g., AutoZone, O Reilly) carry Yamaha parts, but availability varies.

**Final Verdict:** For most Yamaha engine owners, the **genuine Yamaha bolts are the safest choice**, especially for long-term reliability. However, if you are confident in selecting a high-quality aftermarket alternative and the repair is non-critical, you can save money without sacrificing performance **as long as you prioritize quality and proper installation**. Always err on the side of caution for high-stress components.

Details:

Item Overview. Condition: NEW. All parts are unused, dealer-sourced, and classified as New Old Stock NOS. Included: Flange Bolt.

Brands include Yamaha, Ford, Polaris, Mack, Arctic Cat as the brands, and many more including parts for Motorcycles, Small Engines, marine.

part #: 901051040100 prices

• $18.01-$19.65

specifications mocycfra:

• for makes: Yamaha
• part type: Flange Bolt
• upc: 901051040100

offer mocycfra:

• best offers: True
• started: May 10, 2026
• options: Ship-to-home
• sold: 0
• quantity: 1
• availability: In Stock

shipping mocycfra:

• service: USPS Ground Advantage, USPS Priority Mail Flat Rate Envelope, UPS Next Day Air, UPS 2nd Day Air
• class: Standard, Expedited, One-day
• type: Calculated
• cost: $0.00
• transit: 5-11 Days
• carrier: USPS, UPS

seller mocycfra:

• rating: 99.9%
• # reviews: 136634
• city: Ashaway, Rhode Island

general mocycfra:

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

returns mocycfra:

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

payments mocycfra:

• credit card: Diners-club
• wallet: Paypal
• other

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