
93604 Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $59.99 | Condition is New other (see details), 93604, 93740 Set Of Gaskets (2) Mercury Fel-Pro Engines, shipping cost = $19.45 | ![]() |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $11.00 | Condition is New, Fel-Pro Drive Axle Shaft Flange Gasket Rear For 1972-1974 GMC C35/C3500 Pickup, FREE SHIPPING | ![]() |

The Fel-Pro 93604 805403A1 Intake Manifest Gasket Set is specifically designed for Mercruiser Port Big Block engines, providing a reliable and effective solution for sealing the intake manifold to the cylinder heads. This gasket set is manufactured using Fel-Pro's advanced Elastomeric Material, which offers superior sealing performance, durability, and resistance to warping, distortion, and heat.
The set includes all necessary intake manifold gaskets, ensuring a complete and accurate repair. It's important to note that these gaskets are engine-specific, designed to fit the unique contours and dimensions of the Mercruiser Port Big Block engine.
The intake manifold gaskets are pre-formed to ensure a proper fit and easy installation. Fel-Pro's Elastomeric Material allows the gaskets to expand and contract with engine heat, preventing leaks and ensuring optimal engine performance. The gaskets also feature raised sealing surfaces that help to distribute engine compression evenly, reducing stress on the gasket material and extending its service life.
The Fel-Pro 93604 805403A1 Intake Manifold Gasket Set is engineered to meet or exceed OEM specifications for fit, form, and function. It's an excellent choice for engine rebuilds, repair jobs, or as a preventative measure against potential intake manifold leaks.
Installing these gaskets is a straightforward process, but it's important to follow the recommended installation procedures to ensure a proper seal. Properly cleaning and preparing the engine surfaces, using the correct sealant, and installing the gaskets with the correct amount of torque are all crucial steps in ensuring a successful installation.
In summary, the Fel-Pro 93604 805403A1 Intake Manifold Gasket Set is a high-quality, engine-specific solution for sealing the intake manifold on Mercruiser Port Big Block engines. Its advanced Elastomeric Material offers superior sealing performance, durability, and resistance to heat, ensuring optimal engine performance and preventing potential leaks.
Pros and Cons of Buying Fel-Pro 93604 805403A1 Intake Manifold Gasket Set for Mercruiser Port Big Block
Introduction:The Fel-Pro 93604 805403A1 Intake Manifold Gasket Set is a popular choice for those looking to replace their old intake manifold gaskets on their Mercruiser Port Big Block engines. In this article, we will discuss the pros and cons of purchasing this gasket set to help you make an informed decision.
Pros:1. High-Quality Material: The Fel-Pro gasket set is made from high-quality materials that ensure a good seal and prevent leaks. They are designed to withstand the extreme temperatures and pressures that marine engines are subjected to.
2. Easy Installation: The gaskets come pre-formed to the contours of the engine, making installation relatively easy compared to other gasket sets. They also come with detailed instructions to guide the installation process.
3. OEM Specification: The Fel-Pro gasket set is engineered to meet or exceed OEM specifications. This means that the gaskets will provide a reliable seal and fit perfectly, ensuring optimal engine performance.
4. Cost-Effective: Compared to other aftermarket gasket sets, the Fel-Pro gasket set is relatively affordable. It offers good value for money, especially for those who want to save on labor costs by installing the gaskets themselves.
Cons:1. Availability: The Fel-Pro gasket set may not be readily available at all auto parts stores. It may be necessary to order it online or from a specialty marine parts dealer.
2. Compatibility: Although the Fel-Pro gasket set is designed to fit Mercruiser Port Big Block engines, it may not be compatible with all models or variations of these engines. It is essential to check the compatibility before making a purchase.
3. Size: The gasket set may be larger than expected, and it may be necessary to remove the engine or transmission to install it. This can be a time-consuming and labor-intensive process.
Conclusion:The Fel-Pro 93604 805403A1 Intake Manifold Gasket Set is a high-quality and cost-effective solution for those looking to replace their old intake manifold gaskets on their Mercruiser Port Big Block engines. While there are some cons to consider, such as availability and installation difficulty, the benefits, including high-quality materials and easy installation, make this gasket set a worthwhile investment.
Recommendation:If you are in the market for a new intake manifold gasket set for your Mercruiser Port Big Block engine, we would recommend considering the Fel-Pro 93604 805403A1 Intake Manifold Gasket Set. Its high-quality materials, easy installation, and OEM specification make it an excellent choice for those who want to ensure optimal engine performance and prevent leaks. Just be sure to check the availability and compatibility before making a purchase.
Details:
Fits engines calling for quicksilver pn 805403A1 gasket set. Ship the same day whenever possible Fel-pro 93604 and 93740 intake gaskets for 7.4 8.2 engines with large port heads.
specifications inboardfuel:
- for models: Mercruiser
- brand: Fel-pro
- mpn: 93604
- part type: Intake Gasket Manifold Block
shipping inboardfuel:
- carrier: fedex, usps, ups
- transit: 3-8 days
- class: economy, standard
- service: fedex ground economy, usps ground advantage, ups ground
- type: calculated
returns inboardfuel:
- policy: returns accepted
- paid by: seller
- time: 30 days
seller inboardfuel:
- city: mullica hill, new jersey
- rating: 98.5%
- # reviews: 2528
payments inboardfuel:
- other
- credit card: discover
- wallet: google-pay
offer inboardfuel:
- sold #: 8
- in stock #: 2
- prices: $11.00–$59.99
- item condition:
- New other (see details)
- New
- options: ship-to-home
- started: january 20, 2026
- availability: in stock
general inboardfuel:
- category: Boat Parts > Inboard Engines Components > Intake Fuel Systems
Similar Items:
- 25-8M0070081: INJECTOR, Fel Pro
- 17852: GASKET, Fel Pro
- 17847: GASKET CARBURETOR, Fel Pro
- 17842: GASKET CARBURETOR MOUNTING, Fel Pro


