Description
Product Overview
The REPLACEMENTKITS.COM Fuel Supply Module Gasket Kit is engineered for Mercury outboard engines 75‑350 HP (2003+). Constructed from premium Viton (FKM) fluoroelastomer, the gasket and O‑ring resist fuel, oil, and temperature extremes, ensuring a long‑lasting seal. Package dimensions are 7 x 5 x 0.1 inches, weighing just 22.68 g, making storage and handling simple.
![[Product front view showing all components]](https://www.realshop.store/wp-content/uploads/2026/06/4f2b3f07c89d46f595dfa2335ef232fc.jpg)
Usage
Ideal for boat owners, marine service shops, and DIY enthusiasts, this kit replaces part numbers 26‑880596502 and 25‑880596517. Install it during routine maintenance or when a fuel leak is detected. The precise fitment matches the FSM 880596T51 housing and 880596T50 cover, delivering reliable performance in saltwater and freshwater environments.
Why Choose Us
As an American‑owned company, REPLACEMENTKITS.COM guarantees quality with a 30‑day warranty and a 100% satisfaction guarantee. Our aftermarket parts undergo strict testing to meet or exceed OEM standards, providing confidence and peace of mind for every purchase.
Key Features
- Premium Viton material offers superior fuel resistance and durability.
- Exact OEM fit ensures quick, hassle‑free installation.
- Includes both gasket and O‑ring for a complete seal solution.
- Designed for Mercury outboards 75‑350 HP, 2003 and newer.
- 30‑day warranty and dedicated U.S. customer support for peace of mind.
FAQ
Will this kit fit my 2005 Mercury 250 HP outboard?
Yes, the kit is compatible with all Mercury outboards from 75 to 350 HP manufactured in 2003 or later, including the 250 HP model.
Do I need any special tools to install the gasket?
No special tools are required; a basic set of hand tools and a clean work area are sufficient for installation.
What is the warranty period?
The product comes with a 30‑day warranty covering defects in material or workmanship.
Can this gasket be used in saltwater environments?
Absolutely. Viton material is highly resistant to saltwater corrosion, making it ideal for marine applications.
How do I contact customer support?
Reach out via the REPLACEMENTKITS.COM website or call our U.S. support line; we respond within 24 hours.





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