1. Used Boat Parts
  2. sku: 13197861699349771
  3. SIERRA 18-3731

SIERRA 18-3731 Propeller Locknut Nos

fits year: 2018.

18-3731 Sierra Genuine Propeller Locknut 2 For 18 Nos Oem

( Brand: Sierra ), ( Part Type: Propeller ), ( Manufacturer Part Number: 18-3731 )

Review SIERRA Genuine Propeller Locknut Nos Oem fits 2018

Introducing the Sierra 18-3731 propeller locknut, a high-quality component designed for securing propellers on marine applications. This locknut is engineered to provide maximum strength and reliability, ensuring that your propeller stays firmly in place even in the most challenging marine conditions.

Measuring 1.5 inches in length and 0.6 inches in width, the Sierra 18-3731 locknut is specifically designed for use with 18 propeller nuts. Each locknut is made from heavy-duty, corrosion-resistant materials, including a hardened steel body and a brass locknut collar. The brass collar not only adds an extra layer of protection against corrosion but also provides a secure grip for the propeller nut, preventing it from loosening over time.

The Sierra 18-3731 locknut features a unique tapered design that ensures a proper fit and even distribution of torque. The tapered shape allows for easy installation and removal, making it a popular choice among marine professionals and DIY boat owners alike. The locknut also includes a neoprene seal, which provides an additional barrier against water intrusion and helps prevent galvanic corrosion between dissimilar metals.

The Sierra 18-3731 propeller locknut is suitable for use with a wide range of propellers, including aluminum and stainless steel models. Its robust construction and reliable performance make it an essential component for any marine application, from small recreational boats to large commercial vessels.

In summary, the Sierra 18-3731 propeller locknut is a versatile and reliable component that provides superior strength and corrosion resistance for securing propellers on marine applications. Its tapered design ensures easy installation and removal, while the neoprene seal helps prevent water intrusion and galvanic corrosion. With its high-quality materials and proven performance, the Sierra 18-3731 locknut is an essential addition to any marine toolbox.

Pros and Cons of Buying a Sierra 18-3731 Propeller Locknut for 18 Nos

The Sierra 18-3731 Propeller Locknut is a crucial component for securing a propeller to the shaft on various watercraft. Let's examine the potential benefits and drawbacks of purchasing this propeller locknut:

Pros:

1. Durability: The Sierra 18-3731 Propeller Locknut is made of high-quality materials, ensuring long-lasting performance and resistance to corrosion.

2. Security: The locknut design provides a secure connection between the propeller and the drive shaft, reducing the risk of the propeller coming loose during use.

3. Versatility: This locknut is compatible with a wide range of watercraft, making it a convenient choice for boat owners with multiple vessels or those planning to upgrade their current watercraft.

4. Easy Installation: The locknut is designed for simple installation, allowing users to save time and effort compared to other propeller securing methods.

Cons:

1. Cost: The Sierra 18-3731 Propeller Locknut might be more expensive than other propeller securing options, such as propeller keys or clamps.

2. Availability: Depending on the location and availability, it might be challenging to find a supplier that carries this specific locknut.

3. Requires Proper Use: To ensure the locknut functions correctly, it's essential to follow the manufacturer's instructions and use the locknut with the appropriate tools and components.

Conclusion:

The Sierra 18-3731 Propeller Locknut offers several advantages, such as improved security, durability, and ease of installation, making it a worthwhile investment for boat owners. However, its higher cost and potential availability issues might discourage some users. Ultimately, the decision to purchase this locknut depends on individual preferences and priorities.

Recommendation:

For those seeking a reliable and secure way to attach propellers to their watercraft, the Sierra 18-3731 Propeller Locknut is an excellent option. Its durability, versatility, and simple installation process outweigh the potential disadvantages. Boat owners should consider the cost and availability factors before making a purchase and ensure they have the necessary tools and components for proper installation.

Details:

Genuine Sierra Propeller Locknut 18-3731 2 FOR $18 NOS OEM. Shipped with USPS Ground Advantage.

part #: 183731 price

  • $18.00

specifications vesselveep:

  • for years: 2018
  • brand: Sierra
  • part type: Propeller
  • manufacturer part number: 18-3731

offer vesselveep:

  • availability: In Stock
  • options: Ship-to-home
  • started: March 9, 2026
  • sold: 0
  • quantity: 1

returns vesselveep:

  • paid by: Buyer
  • time: 14 Days
  • policy: Returns Accepted

seller vesselveep:

  • rating: 99.4%
  • city: Spokane, Washington
  • # reviews: 7724

general vesselveep:

  • condition: New other see details
  • Parts Accessories > Boat Parts > Other

payments vesselveep:

  • other
  • wallet: Google-pay
  • credit card: Diners-club

shipping vesselveep:

  • cost: $0.00
  • class: Standard
  • service: USPS Ground Advantage
  • carrier: USPS
  • transit: 3-8 Days
  • type: Calculated
for years: 2018, part type: propeller,
sku: 13197861699349771,

Sierra 18-3731 Is Similar To:

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1 offer $18.00 USD
  • New other (see details). Offer #1 priced at $18.00 + $0.00 delivery = $18.00* total. Shipped with USPS Ground Advantage. Genuine Sierra Propeller Locknut (2 FOR $18) NOS OEM .FREE SHIPPING

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