1. Used Boat Parts
  2. sku: 12597138492078713
  3. MERCURY MARINE 91840

MERCURY MARINE 91840 Inflatable Boat Air Valve Cap

fits make: Mercury.

91840 Mercury Marine - Inflatable Boat Air Valve Cap Assembly Black Oem

( Brand: Mercury Marine ), ( Part Type: Valve Cap ), ( Manufacturer Part Number: 91840 )

Review MERCURY MARINE Inflatable Boat Air Valve Cap Assembly Black Oem

Introducing the Mercury Marine 91840 Inflatable Boat Air Valve Cap, an essential accessory designed to provide superior sealing and protection for your inflatable boat's air valves. This cap is engineered to fit specifically with Mercury Marine inflatable boats and is an excellent investment for boat owners seeking durability, reliability, and ease of use.

The Mercury Marine 91840 Inflatable Boat Air Valve Cap is meticulously crafted from high-quality materials, ensuring it can withstand the rigors of regular use on the water. Its robust design includes a securely fastened screw-on mechanism that creates a tight seal around the air valve, preventing any unwanted water intrusion and maintaining the desired air pressure in your inflatable boat.

This cap boasts a user-friendly design, allowing for quick and easy installation and removal. It features a large, ergonomic grip that makes it simple to twist and securely fasten the cap onto the valve. Additionally, the cap's compact size ensures it takes up minimal space when not in use, making it an ideal addition to your boat's accessories.

The Mercury Marine 91840 Inflatable Boat Air Valve Cap is not only functional but also aesthetically pleasing. Its sleek, modern design complements the look of any Mercury Marine inflatable boat. The cap's vibrant color scheme adds a pop of visual interest, making it easy to spot on your boat even from a distance.

In summary, the Mercury Marine 91840 Inflatable Boat Air Valve Cap is a must-have accessory for any inflatable boat owner. Its durable construction, easy-to-use design, and attractive appearance make it an indispensable addition to your boat. By investing in this cap, you'll not only enhance the functionality and performance of your inflatable boat but also enjoy peace of mind knowing that it is protected from the elements while on the water.

Mercury Marine 91840 Inflatable Boat Air Valve Cap: A Comprehensive Analysis

Introduction:

The Mercury Marine 91840 Inflatable Boat Air Valve Cap is a crucial accessory for inflatable boat owners. This cap ensures airtight seals on the inflatable boat's air chambers, preventing air leaks and maintaining the desired buoyancy. In this analysis, we will discuss the pros and cons of purchasing this particular air valve cap.

Pros:

1. Durable Construction: The Mercury Marine 91840 Inflatable Boat Air Valve Cap is built to last. It is constructed from high-quality materials, such as heavy-duty rubber and metal, ensuring long-lasting performance.

2. Easy Installation: Installing the Mercury Marine 91840 Inflatable Boat Air Valve Cap is a straightforward process. Simply replace the old cap with the new one, and you're good to go.

3. Leak-Free Performance: The airtight seal provided by the Mercury Marine 91840 Inflatable Boat Air Valve Cap ensures that your inflatable boat retains the desired buoyancy, providing a safer and more enjoyable boating experience.

4. Versatile Application: This air valve cap is compatible with a wide range of inflatable boats, making it a versatile investment for boat owners.

Cons:

1. Cost: Compared to some other air valve cap options, the Mercury Marine 91840 Inflatable Boat Air Valve Cap may be more expensive. However, the durability and performance of this cap may justify the investment.

2. Limited Compatibility: While this air valve cap is compatible with many inflatable boats, it may not be suitable for all models. Be sure to check the compatibility before making a purchase.

Conclusion:

The Mercury Marine 91840 Inflatable Boat Air Valve Cap is a worthwhile investment for inflatable boat owners. Its durable construction, easy installation, leak-free performance, and versatile application make it a valuable addition to any boat owner's toolkit. Despite the potential cost and limited compatibility, the benefits of this air valve cap far outweigh the drawbacks.

Recommendation:

If you own an inflatable boat and are in need of a reliable and durable air valve cap, the Mercury Marine 91840 Inflatable Boat Air Valve Cap is an excellent choice. While it may come with a higher price tag than some other options, the enhanced performance and longevity of this cap make it a worthwhile investment for your safety and enjoyment on the water.

Details:

Provides secondary air seal for inflatable chambers. This OEM cap serves as a critical cover for the air valve, protecting valve mechanism from water, dirt, and debris while providing secondary seal to prevent loss. Replaces Part Numbers: 91840T. Fast Shipping.

Key Features. Brand Mercury Marine, Part Number 91840, Condition NEW, Notes/Other number 91840 / 91840T. Protects air valve mechanism from debris and water. This genuine OEM cap assembly ensures a precise fit for your Mercury inflatable boats valve system.

This is a black cap assembly, primarily designed for the air inflation valves on various Mercury and Quicksilver inflatable boat model's. Verify valve type compatibility visually if unsure. This part is superseded in some catalogs but remains a direct factory replacement for the specified vintage of inflatable boats. Please verify fitment for your specific application before purchasing.

Unlike generic replacements, it is manufactured to factory specifications for optimal sealing and UV resistance, helping maintain air pressure extend the life of your boats valves. Genuine Mercury Marine / Quicksilver part. 2026 Classic Revival Marine. Genuine Mercury Marine / Quicksilver OEM part.

part #: 91840 price

  • $27.93

specifications vesselveep:

  • for makes: Mercury
  • brand: Mercury Marine
  • part type: Valve Cap
  • manufacturer part number: 91840

offer vesselveep:

  • best offers: True
  • options: Ship-to-home
  • availability: In Stock
  • quantity: 2
  • started: February 11, 2026
  • sold: 0

shipping vesselveep:

  • transit: 6-12 Days
  • carrier: UPS
  • service: UPS Ground, UPS 2nd Day Air, UPS Ground Saver
  • type: Calculated
  • class: Standard, Expedited, Economy
  • cost: $7.84

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  • wallet: Google-pay

seller vesselveep:

  • rating: 0.0%
  • city: Spokane, Washington
  • # reviews: 0

returns vesselveep:

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

general vesselveep:

  • condition: New
  • Parts Accessories > Boat Parts > Other
for makes: mercury, part type: valve cap,
sku: 12597138492078713,

Mercury Marine 91840 Is Similar To:

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1 offer $27.93 USD
  • New. Offer #1 priced at $27.93 + $8.29 delivery = $36.22* total. Commonly used on Quicksilver Inflatable Boat models including the 240, 270, 310, and 340 series (Air Deck, Sport, and Roll Up models). Part Number .+$8.29 shipping

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