In the intricate world of diesel engines, every component plays a critical role in ensuring optimal performance, reliability, and longevity. Among these essential parts, the Cummins 3937613 Clamp, Spring Hose stands out as a crucial element for maintaining the integrity and efficiency of various engine systems. Manufactured by Cummins, a globally recognized leader in engine technology, this clamp is engineered to meet the stringent demands of heavy-duty applications.

The primary function of the Cummins 3937613 Spring Hose Clamp is to provide a secure and leak-free connection between hoses and their respective fittings within the engine's critical systems. These systems include, but are not limited to, fuel lines, coolant systems, pneumatic systems, aftercooler hoses, and turbo oil drain hoses. A compromised connection in any of these areas can lead to significant issues, from fluid leaks and reduced efficiency to potential engine damage.
What sets the Cummins 3937613 apart is its design, which utilizes spring tension to apply a consistent and even amount of pressure throughout the entire circumference of the hose. This ensures a robust seal that prevents leakage and withstands the vibrations and operational stresses inherent in diesel engine environments. Unlike other clamping mechanisms, the spring clamp's design helps maintain the right tension without cutting into the hose, promoting longer hose life and overall system reliability. As a genuine Original Equipment (OE) part, it guarantees a direct-fit replacement, ensuring seamless integration and performance identical to the factory-installed component.
To provide a clear understanding of this essential component, here's a detailed overview of its key specifications and attributes:
| No. | Attribute | Detail |
|---|---|---|
| 1. | Part Number | 3937613 |
| 2. | Product Name | Clamp, Spring Hose / Hose Clamp |
| 3. | Manufacturer | Cummins |
| 4. | Material | Steel (often stainless steel) |
| 5. | Application/Function | Secures hoses in fuel, coolant, pneumatic, aftercooler, and turbo oil drain systems. Prevents leakage. |
| 6. | Key Features | Spring tension design, even pressure distribution, genuine OE part, direct-fit replacement. |
| 7. | Approx. Dimensions | 3.5" x 3.5" x 2.0" (Packaging), Inside Diameter: 3.0" min - 4.0" max (clamp dependent). |
| 8. | Approx. Weight | 0.012 - 0.025 lbs |
| 9. | Common Cross References | 3907738, 3909408, 3918163, CUM3937613 |
| 10. | Typical Engine Fitment | 1994-2004 Dodge w/ 5.9L Cummins Engine (12V/24V), Cummins 6B/6C/ISC/ISL Series, Dongfeng Cummins 6CT, MMPV RG-31 MRAP 6B 5.9L Diesel Engine. |
At Guangzhou Pinxin Engine Co., Ltd., we understand the paramount importance of using genuine, high-quality engine parts. Our commitment to excellence means we provide only components that meet the rigorous standards of leading manufacturers like Cummins. The 3937613 Clamp, Spring Hose exemplifies the kind of reliable product we offer, ensuring that your diesel engines operate at their peak performance with maximum safety and efficiency. We are dedicated to supporting our customers with superior products and expert knowledge, contributing to the longevity and smooth operation of their machinery.
Investing in authentic Cummins parts like the 3937613 Clamp is an investment in the future of your equipment. It reduces the risk of costly breakdowns, minimizes maintenance time, and ultimately enhances the overall productivity of your operations.
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