HONDA 90301-ZW1-B00 Outboard Propeller Castle Nut

( Manufacturer Part Number: 90301-ZW1-B00 ), ( Part Type: Propeller ), ( Country Of Origin: Japan )

Review HONDA Genuine Outboard Propeller Castle Nut New Oem

The **Honda 90301-ZW1-B00 Outboard Propeller Castle Nut** is a precision-engineered, high-performance fastener specifically designed for Honda marine outboard motors, ensuring optimal performance, reliability, and longevity for your watercraft. Crafted from durable, corrosion-resistant materials, this nut is built to withstand the harsh marine environment, including exposure to saltwater, UV radiation, and constant mechanical stress. Its robust construction features a **fine-threaded design**, which guarantees a secure and vibration-resistant fit when paired with the corresponding propeller shaft and castle nut assembly, preventing loosening or slippage even under high-speed or heavy-load conditions. The nut is engineered to complement Honda s proprietary outboard systems, offering seamless integration with the motor s propeller shaft and drive components, thereby maintaining the integrity of the propulsion system. Its **tight-tolerance specifications** ensure a snug, interference-free connection, reducing the risk of wear or damage to the propeller or drive components over time. Whether installed on a compact 25-horsepower model or a larger, high-performance outboard, this castle nut plays a critical role in maintaining the efficiency and safety of your engine s propulsion mechanism. Regular inspection and proper torque application following Honda s recommended specifications will further extend its service life, ensuring your outboard operates at peak performance for countless hours on the water.

### **Pros and Cons of buying a Honda 90301-ZW1-B00 Outboard Propeller Castle Nut**

1. **OEM Compatibility** This part is designed specifically for Honda outboards, ensuring a perfect fit and proper function without modifications.

2. **Durability** Made from high-quality materials, it is built to withstand the stress of propeller rotation, reducing the risk of premature failure.

3. **Easy Installation** Standardized design makes it straightforward to install, even for those with basic mechanical skills.

4. **Prevents Propeller Loosening** A properly tightened castle nut ensures the propeller stays securely in place, reducing vibration and potential damage.

5. **Cost-Effective Replacement** Compared to full propeller replacements, this nut is a low-cost solution for addressing a common wear-and-tear issue.

6. **Widely Available** As an aftermarket part, it is easy to find through Honda dealers, marine supply stores, or online retailers.

7. **Prevents Propeller Damage** A failing castle nut can cause the propeller to loosen, leading to blade damage or detachment this part helps avoid such risks.

1. **Potential Counterfeit Risks** Some third-party sellers may offer fake or low-quality replicas, which could fail prematurely or not fit correctly.

2. **Limited Lifespan** Like all mechanical parts, it will eventually wear out, especially if the propeller is frequently removed or if the outboard is heavily used.

3. **Requires Proper Tightening** Over-tightening can damage the propeller shaft threads, while under-tightening may lead to loosening over time.

4. **Not a Permanent Fix for Underlying Issues** If the propeller shaft or threads are damaged, replacing just the nut may not solve the problem long-term.

5. **May Need Replacement Alongside Other Parts** If the nut fails due to corrosion or wear, adjacent components (such as the propeller or shaft) may also need inspection.

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### **Conclusion**

The **Honda 90301-ZW1-B00 Outboard Propeller Castle Nut** is a **practical and cost-effective solution** for maintaining propeller security in Honda outboards. Its **OEM compatibility, durability, and ease of installation** make it a reliable choice for routine maintenance. However, **buyers should ensure they purchase from a trusted source** to avoid counterfeit parts and should **follow proper tightening procedures** to maximize its lifespan.

If the nut fails frequently, it may indicate **underlying issues with the propeller shaft or mounting system**, which could require further inspection or replacement. For most users, this part is a **simple and necessary upgrade** to prevent propeller-related problems.

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### **Recommendation**

- **Buy from an authorized Honda dealer or a reputable marine parts supplier** to ensure authenticity.

- **Check for signs of wear** (corrosion, stripped threads) before installation.

- **Tighten securely but avoid overtightening** to prevent damage.

- **Replace if damaged or if the propeller is frequently removed** (e.g., for winter storage).

- **Consider a full propeller inspection** if the nut fails repeatedly, as it may signal deeper mechanical issues.

For most boaters, this is a **worthwhile and inexpensive part** to keep their outboard running smoothly.

Details:

Genuine Honda Outboard Propeller Castle Nut, Part Number 90301-ZW1-B Please verify compatibility with a dealer before purchase.

part #: 90301zw1b00 prices

• $14.99-$29.89

specifications ouboaen:

• for makes: Honda
• mpn: 90301-zw1-b00
• part type: Propeller
• country of origin: Japan

returns ouboaen:

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

general ouboaen:

• condition: New
• Boat Parts > Outboard Engines Components > Other

offer ouboaen:

• started: February 20, 2026
• quantity: 1
• sold: 0
• availability: In Stock
• options: Ship-to-home

shipping ouboaen:

• cost: $0.00
• transit: 5-11 Days
• class: Standard, Expedited
• type: Fixed
• carrier: USPS
• service: USPS Ground Advantage, USPS Priority Mail

payments ouboaen:

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

seller ouboaen:

• rating: 99.8%
• # reviews: 10677
• city: Elizabethton, Tennessee

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