CUMMINS 3901895 Filler Cap

( Brand: Cummins ), ( Manufacturer Part Number: 3901895 ), ( Type: Filler Cap ), ( Country Of Origin: United States )

Review CUMMINS New Genuine Filler Cap

The Cummins 3901895 Filler Cap is an essential component of a diesel engine, designed to provide a secure seal between the fuel tank and the environment, preventing fuel loss due to evaporation or external factors. This filler cap is specifically engineered for Cummins engines, ensuring a perfect fit and reliable performance.

The 3901895 Filler Cap is constructed from high-quality materials, including a durable polypropylene body and a rubber gasket. The body is designed to resist the harsh conditions of engine environments, including extreme temperatures and exposure to fuel. The rubber gasket, on the other hand, provides a tight seal against fuel vapor, preventing it from escaping and reducing fuel consumption.

One of the notable features of this filler cap is its integrated fuel level gauge, which allows the user to easily monitor the fuel level in the tank. The gauge is designed with a clear and concise scale, enabling accurate readings even in low-light conditions. This feature is particularly useful for operators who need to ensure that their fuel levels are maintained at optimal levels for maximum efficiency and productivity.

The Cummins 3901895 Filler Cap also comes with a vented design, which helps to equalize pressure inside the fuel tank and reduces the risk of fuel spills during refueling. The vent is designed with a protective screen that prevents debris and contaminants from entering the fuel system, ensuring clean and efficient fuel flow.

The 3901895 Filler Cap is designed to be easy to install, with a straightforward process that can be completed in a few simple steps. The cap comes with all necessary hardware, including mounting screws, making it a convenient and hassle-free solution for engine maintenance.

In summary, the Cummins 3901895 Filler Cap is a high-performance and reliable component that is essential for maintaining the fuel system in Cummins engines. Its durable construction, integrated fuel level gauge, and vented design make it an indispensable addition to any engine maintenance toolkit.

Cummins Filler Cap (Part Number 3901895): A Detailed Analysis

The Cummins 3901895 filler cap is a crucial component for diesel engines, especially those manufactured by Cummins. This part enables the proper sealing of the fuel system and prevents fuel leaks. In this analysis, we will discuss the benefits and drawbacks of purchasing this specific filler cap.

1. OEM Compatibility: The Cummins 3901895 filler cap is an original equipment manufacturer (OEM) part, meaning it is designed and manufactured to meet the exacting standards of Cummins engines. By using an OEM part, you can ensure a perfect fit and optimal performance.

2. Leak-Free Design: This filler cap is engineered to provide a leak-free seal, preventing fuel from escaping and ensuring that your engine remains properly fueled.

3. Durable Construction: The Cummins 3901895 filler cap is made from high-quality materials that are resistant to corrosion and wear, ensuring long-lasting performance.

4. Easy Installation: Installing this filler cap is a straightforward process, which can save you time and money compared to having a professional mechanic do it.

1. Cost: OEM parts, including the Cummins 3901895 filler cap, can be more expensive than aftermarket alternatives. However, the benefits of using an OEM part often outweigh the additional cost.

2. Availability: Depending on where you live or the availability at your local parts supplier, you may need to order this filler cap online or wait for it to be delivered.

The Cummins 3901895 filler cap is an essential component for maintaining the performance and reliability of your Cummins engine. While it may come with a higher price tag compared to aftermarket alternatives, the benefits of using an OEM part, such as perfect fit, leak-free design, and durability, often make the investment worthwhile.

If you are in need of a new filler cap for your Cummins engine, we recommend purchasing the OEM part, such as the Cummins 3901895 filler cap, to ensure optimal performance and longevity. While the upfront cost may be higher, the peace of mind and potential cost savings from avoiding fuel leaks and engine issues down the line can make it a worthwhile investment.

Details:

part #: 3901895 prices

• $28.00-$48.66

specifications rockeareng:

• brand: Cummins
• mpn: 3901895
• type: Filler Cap
• country of origin: United States

shipping rockeareng:

• cost: $0.00
• type: Calculated
• transit: 3-8 Days
• class: Standard
• service: USPS Ground Advantage
• carrier: USPS

seller rockeareng:

• city: Tacoma, Washington
• rating: 100.0%
• # reviews: 342

returns rockeareng:

• time: 30 Days
• paid by: Seller
• policy: Returns Accepted

general rockeareng:

• condition: New other see details
• Engines Engine Parts > Valvetrain Components > Rocker Arms Parts

payments rockeareng:

• wallet: Apple-pay
• other
• credit card: Diners-club

offer rockeareng:

• best offers: True
• sold: 0
• quantity: 7
• options: Ship-to-home
• availability: In Stock
• started: March 23, 2026

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