
6I-4802 Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $45.00 | Top Pick! Condition is Used, CATERPILLAR FUEL FILTER HOUSING CAT 6I-4802 - used - see photos, shipping cost = $23.85 | 100.0% |
![]() | $49.99 | Condition is Used, Caterpillar 3126 Marine Fuel Filter Base 6I-4802, shipping cost = $26.25 | 99.4% |
![]() | $60.00 | Condition is Used, OEM Caterpillar 3126 Marine Engine Fuel Filter Housing w Breather 6I-4802,4P9437, shipping cost = $47.49 | 98.9% |
![]() | $99.00 | Condition is Used, Caterpillar 3116 fuel filter base bracket 6I-4802, shipping cost = $10.00 | 99.8% |
![]() | $100.00 | Condition is Used, Caterpillar 3126 Marine, shipping cost = $12.92 | 100.0% |
![]() | $89.99 | Condition is Used, CATERPILLAR Cat 3114 Diesel Engine Fuel Filter Base 6I-4802 OEM Take Off 924F, shipping cost = $42.20 | 99.7% |

The Caterpillar 6I-4802 3126 Marine Fuel Filter Base is a crucial component in the fuel delivery system of marine engines manufactured by Caterpilla. This filter base is specifically designed to provide excellent fuel filtration and ensure the engine's reliable operation.
The filter base comes with a replaceable fuel filter element, part number 3126, which is rated for 2 microns of absolute filtration. The filtration process removes water, rust, and other contaminants, preventing them from entering the engine and causing damage. The filter element can be easily changed without requiring any major modifications to the fuel system.
The Caterpillar 6I-4802 3126 Marine Fuel Filter Base is made of high-quality materials that offer excellent durability. The base is constructed from cast iron, providing resistance to corrosion and ensuring a long service life. The inlet and outlet connections are made of brass, providing a strong and reliable connection for the fuel lines.
The filter base is designed to accommodate a wide range of fuel types, including diesel and biodiesel. It features a fuel-compatible gasket and O-rings, ensuring a tight seal and preventing any potential fuel leaks.
The Caterpillar 6I-4802 3126 Marine Fuel Filter Base also includes a pressure relief valve that helps prevent the fuel system from overpressure. The valve is adjustable, allowing the user to set the desired relief pressure. This feature adds an extra layer of protection to the engine and fuel system.
The filter base is relatively compact and can be easily installed on most marine engines. It measures approximately 10.1 inches (25.6 cm) in length, 5.6 inches (14.2 cm) in width, and 6.1 inches (15.5 cm) in height. The weight is approximately 17.6 pounds (8.0 kg).
In conclusion, the Caterpillar 6I-4802 3126 Marine Fuel Filter Base is a vital component in the fuel delivery system of marine engines, providing excellent fuel filtration and ensuring the engine's reliable operation. Its high-quality materials, adjustable pressure relief valve, and ease of installation make it a popular choice among marine engine owners.
The Caterpillar 6I-4802 3126 marine fuel filter base is a crucial component in ensuring the proper functioning and longevity of marine engines. This filter base is designed to remove contaminants from marine fuel before it reaches the engine, preventing potential damage. Here are some pros and cons of buying this particular filter base.
Pros:1. High-quality construction: The Caterpillar 6I-4802 3126 marine fuel filter base is built to last, with robust materials and a reliable design.
2. Designed for marine applications: This filter base is specifically designed for use in marine environments, making it an ideal choice for boat owners.
3. Effective filtration: The Caterpillar 6I-4802 3126 marine fuel filter base is capable of removing a wide range of contaminants from marine fuel, including water, sediment, and other impurities.
4. Easy to install: The filter base is relatively easy to install, and replacement filters are readily available.
Cons:1. Cost: The Caterpillar 6I-4802 3126 marine fuel filter base can be more expensive than some other filter bases on the market.
2. Size and weight: The filter base is relatively large and heavy, which may make it more difficult to transport and install for some boat owners.
3. Requires regular maintenance: While the filter base is effective at removing contaminants from marine fuel, it does require regular maintenance to ensure optimal performance.
In conclusion, the Caterpillar 6I-4802 3126 marine fuel filter base is a high-quality and effective solution for ensuring the proper functioning and longevity of marine engines. Its robust construction, marine-specific design, and effective filtration capabilities make it an excellent investment for boat owners. However, its relatively high cost, size, and weight, as well as the requirement for regular maintenance, may be drawbacks for some.
Recommendation:If you own a marine engine and are looking for a reliable and effective fuel filter solution, the Caterpillar 6I-4802 3126 marine fuel filter base is a strong recommendation. Its high-quality construction, effective filtration capabilities, and marine-specific design make it an ideal choice for maintaining the health and performance of your marine engine. While its cost and size may be drawbacks for some, the peace of mind and protection it provides for your engine may be worth the investment.
Details:
specifications inboardfuel:
- for models: Marine
- brand: Caterpillar
- mpn: 6i-4802
- part type: Fuel Filter
shipping inboardfuel:
- type: calculated
- carrier: usps, ups
- service: usps ground advantage, ups ground
- class: standard
- transit: 5-11 days
returns inboardfuel:
- policy: no returns
seller inboardfuel:
- rating: 95.7%
- city: cambridge, maryland
- # reviews: 395
general inboardfuel:
- category: Boat Parts > Inboard Engines Components > Intake Fuel Systems
offer inboardfuel:
- started: june 19, 2025
- availability: in stock
- in stock #: 5
- prices: $45.00–$100.00
- item condition: Used
- options: ship-to-home
- sold #: 17
payments inboardfuel:
- wallet: apple-pay
- other
- credit card: diners-club





