
KNN59-5005 Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $113.00 | Condition is New, K&N 59 5005 Marine Flame Arrestor Oval Air Filter (Oval Tapered), FREE SHIPPING | ![]() |
![]() | $115.99 | Condition is New, K&N 59-5005 Marine Flame Arrestor High-Flow Original Universal Air Filter, FREE SHIPPING | ![]() |
![]() | $115.99 | Condition is New, For K&N Marine Engine Flame Arrestor - Oval Tapered 3.75in Flange ID / .75in, FREE SHIPPING | ![]() |
![]() | $115.99 | Condition is New, K&N Marine Engine Flame Arrestor - Oval Tapered 3.75in Flange ID / .75in Flange, FREE SHIPPING | 99.8% |
![]() | $115.99 | Condition is New, K&N Engineering High-Flow Original Universal Air Filter -Marine Flame Arrestor, FREE SHIPPING | ![]() |
![]() | $115.99 | Condition is New, K&N Marine Engine Flame Arrestor Oval Tapered 3.75" IDx.75" Len x 4" Ht, FREE SHIPPING | 99.6% |
![]() | $115.99 | Top Pick! Condition is New, K&N 59-5005 Marine Air Filter Flame Arrestor, FREE SHIPPING | 99.4% |
![]() | $116.22 | Condition is New, K&N 59-5005 Engine Air Filter, FREE SHIPPING | 100.0% |
![]() | $117.35 | Top Pick! Condition is New, K&N Marine Engine Flame Arrestor Oval Tapered 3.75in Flange ID / .75in Flange Le, FREE SHIPPING | 99.0% |
![]() | $117.67 | Condition is New, K&N Engine Air Filter, FREE SHIPPING | ![]() |
![]() | $118.95 | Condition is New, K&N 59 5005 Marine Flame Arrestor Oval Air Filter (Oval Tapered), FREE SHIPPING | 99.6% |
![]() | $119.50 | Condition is New, K&N 59-5005 Marine Air Filter Engine Flame Arrestor, FREE SHIPPING | 99.7% |
![]() | $119.52 | Condition is New, K&N Marine Flame Arrestor, FREE SHIPPING | ![]() |
![]() | $122.23 | Condition is New, K&N 59-5005 , FREE SHIPPING | 100.0% |
![]() | $124.60 | Condition is New, K&N 59-5005 Marine Flame Arrestor, FREE SHIPPING | ![]() |
![]() | $125.07 | Condition is New, Fits K&N Marine Engine Flame Arrestor - Oval Tapered 3.75in Flange ID /, FREE SHIPPING | 99.7% |
![]() | $133.09 | Condition is New, K&N 59-5005 Marine Flame Arrestor, 4" Oval, Washable, Stainless Top, Boat Engine, FREE SHIPPING | 99.7% |
![]() | $115.99 | Condition is New, K&N Marine Engine Flame Arrestor - Oval Tapered 3.75in Flange ID / .75in Flange, shipping cost = $19.50 | 97.5% |
![]() | $131.54 | Top Pick! Condition is New, K&N Engineering 59-5005 Marine Engine Flame Arrestor - High Performance, shipping cost = $9.99 | 99.8% |
![]() | $141.99 | Top Pick! Condition is New, K&N Marine Engine Flame Arrestor - Oval Tapered 3.75in Flange ID / .75in Flange, FREE SHIPPING | ![]() |
![]() | $113.28 | Condition is New, K&N Marine Flame Arrestor 59-5005 - Genuine K&N Part, shipping cost = $33.59 | 99.9% |
![]() | $151.70 | Condition is New, K&N 59-5005 Marine Flame Arrestor, FREE SHIPPING | 100.0% |
![]() | $172.99 | Condition is New, K&N Marine Engine Flame Arrestor - Oval Tapered 3.75in Flange ID / .75in Flange, FREE SHIPPING | 98.6% |

The KNN59-5005 Marine Engine Flame Arrestor, manufactured by Keenan-Nagle, is an essential safety component designed to prevent the backflow of flames and explosive gases into the intake system of marine engines. This flame arrestor is specifically designed for marine applications and is tapered with an index of 3.75 inches (diameter) and 7.5 inches (length) and 5 inches (height).
Crafted from high-quality materials, this flame arrestor is built to withstand the rigors of marine environments. Its tapered design provides a smooth transition from the engine intake to the arrestor, minimizing turbulence and maximizing flow efficiency. The arrestor's 3.75-inch diameter base is large enough to accommodate most marine engine intakes, making it a versatile solution for various applications.
The KNN59-5005 Marine Engine Flame Arrestor features a unique, ribbed design on its interior surface that provides increased surface area for effective flame arrestion. The ribs create turbulence within the arrestor, which helps to mix fuel-air mixtures and suppress any potential flames. These ribs are also designed to prevent the collection of water or debris, ensuring optimal performance and safety.
The arrestor's exterior surface is finished with a durable, corrosion-resistant coating to protect it from the harsh marine environment. The coating also provides excellent resistance to UV rays, ensuring the arrestor maintains its appearance even under prolonged sun exposure.
Installation of the KNN59-5005 Marine Engine Flame Arrestor is a straightforward process. It can be easily mounted to the engine intake using the included hardware, and the tapered design makes for a seamless integration into the engine system. Regular maintenance, such as cleaning and inspection, is essential to ensure the arrestor functions correctly and remains in optimal condition.
In conclusion, the KNN59-5005 Marine Engine Flame Arrestor by Keenan-Nagle is a crucial safety component for marine engines, providing effective flame arrestion and preventing the backflow of explosive gases. Its tapered design, high-quality materials, and durable corrosion-resistant coating make it a reliable and long-lasting solution for marine engine applications.
Pros and Cons of Buying a Marine Engine Flame Arrestor (KNN59-5005)
The KNN59-5005 marine engine flame arrestor by Tapered 3.75 IDx7.5 Len HT is a crucial safety component for marine engines. This device prevents backfires and helps protect against explosions. Let's discuss the potential advantages and disadvantages of purchasing this flame arrestor.
Pros:1. Enhanced Safety: The primary benefit of using a flame arrestor is the added layer of safety it provides. By preventing the backflow of fuel-air mixture, it minimizes the risk of engine fires or explosions.
2. Compliance with Regulations: Marine engines must meet certain safety standards, and having a flame arrestor can help ensure compliance with these regulations. This can be essential for commercial vessels or larger private boats.
3. Durability: The KNN59-5005 flame arrestor is designed to withstand the harsh marine environment. It is made from high-quality materials, ensuring long-lasting performance and reliability.
4. Easy Installation: Installing the flame arrestor is typically a straightforward process. It can be installed on the carburetor or intake manifold, and the instructions provided by the manufacturer should make the installation process hassle-free.
Cons:1. Cost: Marine engine flame arrestors can be quite expensive, especially high-quality ones like the KNN59-5005. This might be a significant investment for some boat owners.
2. Additional Maintenance: While the flame arrestor itself requires minimal maintenance, the process of installing and removing it might require some extra work. Additionally, regular checks to ensure its proper functioning are necessary.
3. Potential Performance Impact: Although the flame arrestor does not directly affect engine performance, some users have reported minor decreases in power or fuel efficiency. However, these effects are usually negligible.
Conclusion:In summary, the KNN59-5005 marine engine flame arrestor offers essential safety benefits, ensuring compliance with regulations and protecting against engine fires or explosions. Despite its cost and potential impact on performance, the advantages of this device generally outweigh the disadvantages. If you value the safety and peace of mind that comes with using a flame arrestor, it is a worthwhile investment for your marine engine.
Details:
K n Marine engine flame arrestor oval tapered 3.75 IDX.75 len x 4 ht: the makes the best air-filtration technology available for Marine engine use. K n Marine engine flame arrestor oval tapered 3.75 IDX.75 len x 4 ht: engineering - KNN59-5005: the makes the best air-filtration technology available for Marine engine use. Buyer pays for return shipping. .
specifications inboardfuel:
- for models: Marine
- brand: K-n Engineering
- mpn: Knn59-5005
- part type: Flame Engine Len
- california prop 65 warning: Warning
- vintage part: No
- upc: 024844086792
general inboardfuel:
- category: Boat Parts > Inboard Engines Components > Intake Fuel Systems
shipping inboardfuel:
- type: fixed
- transit: 3-8 days
- class: standard
- service: standard
payments inboardfuel:
- other
- credit card: diners-club
- wallet: paypal
seller inboardfuel:
- city: hatfield, pennsylvania
- # reviews: 7590
- rating: 98.6%
offer inboardfuel:
- in stock #: 5
- options: ship-to-home
- sold #: 19
- started: july 16, 2025
- availability: in stock
- prices: $113.00–$172.99
- item condition: New
returns inboardfuel:
- paid by: buyer
- time: 30 days
- policy: returns accepted




















