
18-7604-1 Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $425.70 | Condition is Used, Sierra Marine Carburetor 4 Barrel Rochester 18-7604-1 ( Open Box / Used ), FREE SHIPPING | ![]() |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $729.16 | Top Pick! Condition is New, Sierra Carburetor #18-7604-1, shipping cost = $21.40 | 99.6% |
![]() | $912.99 | Condition is New, Sierra Carburetor Reman. Mercruiser 4.3L V6 w Rochester 4Bbl 1985-1992 3304-9354, shipping cost = $10.25 | 99.6% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $755.99 | Condition is New other (see details), Carburetor Reman. Mercruiser 4.3L V6 w/Rochester 4Bbl 1985-1992 3304-9354A2, FREE SHIPPING | 99.9% |

Introducing the Sierra Marine Carburetor Barrel, model number 18-7604-1, manufactured by Rochester. This marine-specific carburetor barrel is a crucial component for maintaining optimal fuel delivery in marine applications. Designed to meet the unique demands of boating, this barrel offers robust performance and reliability.
The barrel is constructed from high-quality materials, ensuring durability and resistance to the harsh marine environment. The body is made from cast aluminum, which is not only lightweight but also resilient against corrosion and other forms of wear and tear. The barrel also features a brass float bowl, providing excellent fuel storage capacity and maintaining a consistent fuel level for smooth operation.
This marine carburetor barrel is designed to work seamlessly with a wide range of marine applications and engines. It is suitable for use with two-barrel Quadra-Jet carburetors and is recommended for use with gasoline fuel. It comes with a factory-installed float and needle jet, ensuring accurate fuel metering and efficient combustion.
The barrel's design is optimized for marine use, with features such as a vented fuel bowl to prevent fuel vapor lock and a large fuel bowl opening for easy access during maintenance. The barrel also includes a fuel level sight plug, allowing you to easily check the fuel level without having to remove the bowl.
The Sierra 18-7604-1 marine carburetor barrel is known for its ease of installation. It comes with all necessary hardware, including mounting brackets and gaskets, making it a straightforward upgrade for your marine engine. Additionally, its precision machining ensures a perfect fit and easy integration with your existing carburetor setup.
In summary, the Sierra 18-7604-1 marine carburetor barrel is a high-performance, marine-specific component designed for optimal fuel delivery in a wide range of marine applications. Its durable construction, ease of installation, and accurate fuel metering make it an essential upgrade for any boater looking to ensure their engine runs smoothly and efficiently on the water.
The Rochester 18-7604-1 marine carburetor barrel is a common replacement part for outboard motors. Here are some pros and cons that may help you decide if this carburetor barrel is the right choice for your needs:
Pros:1. Widely Compatible: This carburetor barrel is designed to fit a variety of outboard motor models, making it a versatile option for boat owners.
2. High-Quality Construction: The Rochester 18-7604-1 carburetor barrel is made with durable materials, ensuring long-lasting performance.
3. Easy Installation: The barrel is a straightforward replacement part, and installation should not be too difficult for those with some mechanical experience.
4. Affordable: Compared to some other replacement carburetor barrels, the Rochester 18-7604-1 is relatively affordable.
Cons:1. Potential Fitment Issues: Although this carburetor barrel fits a wide range of motors, there's a possibility that it may not be an exact match for some. In such cases, additional modifications might be required.
2. Adjustments May Be Needed: Depending on the specific motor and application, adjustments to the carburetor may be necessary for optimal performance.
Ending Conclusion:The Rochester 18-7604-1 marine carburetor barrel is a reliable and affordable replacement option for outboard motor owners. Its wide compatibility makes it a versatile choice, but potential fitment and adjustment issues should be considered before making a purchase.
Recommendation:If you are in need of a carburetor barrel for your outboard motor and your specific motor is listed as compatible with this part, the Rochester 18-7604-1 is a solid choice. Keep in mind that, as with any replacement part, it's essential to ensure proper installation and, if needed, any necessary adjustments for optimal performance.
Details:
Please review pictures closely. Item comes as is. This item is missing its gaskets. Sierra Marine carburetor 4 barrel Rochester 18-7604-1 open box / used a that is open box.
You are only receiving what is pictured. There are various dings and installation marks. Rochester: 4 barrel.
specifications inboardfuel:
- for models: Marine
- for makes: Rochester
- brand: Sierra
- mpn: 18-7604-1
- part type: Carburetor Box
seller inboardfuel:
- # reviews: 137994
- city: cincinnati, ohio
- rating: 98.8%
returns inboardfuel:
- paid by: seller
- policy: returns accepted
- time: 30 days
shipping inboardfuel:
- transit: 2-5 days
- type: fixed
- class: economy, standard
- service: economy, standard
offer inboardfuel:
- in stock #: 4
- availability: in stock
- options: ship-to-home
- prices: $425.70–$912.99
- item condition:
- Used
- New
- New other (see details)
- sold #: 16
- started: september 25, 2025
payments inboardfuel:
- other
- wallet: google-pay
- credit card: visa
general inboardfuel:
- category: Boat Parts > Inboard Engines Components > Intake Fuel Systems
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