3686312
Molded Hose
Cummins®

AVAILABLE

Cummins®

6 are currently available

Ships within 2-4 business days

$41.95 $49.92

This truck part is made by Cummins®. We guarantee that all of our parts are from the OEM (original equipment manufacturer), ensuring a proper fit and quality manufacturing.


DESCRIPTION

The 3686312 Molded Hose, a component manufactured by Cummins, is designed for use in commercial trucks. This hose facilitates the transport of fluids or gases within various truck systems, ensuring efficient operation and reliability.

Basic Concepts of Molded Hoses

Molded hoses are specialized components that connect different parts of a vehicle’s system. They are constructed from a combination of rubber and reinforcement materials, providing flexibility and strength. The construction process involves molding the hose to precise specifications, ensuring a snug fit and reliable performance. Common materials include synthetic rubbers and thermoplastic elastomers, chosen for their durability, resistance to chemicals, and ability to withstand high temperatures and pressures 1.

Purpose of the 3686312 Molded Hose

This Cummins part is designed to connect specific systems within a truck, facilitating the transport of fluids or gases essential for the operation of these systems. Its precise design and construction ensure a secure fit and efficient transfer of materials, contributing to the overall performance and reliability of the truck.

Key Features

The 3686312 Molded Hose features robust construction using high-quality materials, a precise mold for a perfect fit, and reinforced ends for added strength. These attributes contribute to the hose’s ability to withstand the demanding conditions found in commercial truck applications.

Benefits

Utilizing this part offers several advantages, including improved efficiency, durability, and reliability compared to other types of hoses. These benefits contribute to the overall performance of the truck by ensuring that systems operate smoothly and efficiently, reducing the likelihood of leaks or failures.

Installation Considerations

When installing the 3686312 Molded Hose, it is important to follow guidelines and best practices to ensure proper fit and function. Compatibility with various truck models and systems should be considered, and care should be taken to ensure that the hose is installed correctly to avoid issues down the line.

Troubleshooting Common Issues

Common problems associated with molded hoses, including the 3686312, can often be traced back to installation issues, wear and tear, or exposure to harsh conditions. A step-by-step troubleshooting guide can help diagnose and resolve these issues, ensuring the hose continues to perform as intended.

Maintenance Tips

Regular maintenance of the 3686312 Molded Hose is key to ensuring longevity and optimal performance. This includes routine inspections for signs of wear or damage, and following recommended procedures for cleaning and care. Proper maintenance can help prevent issues and extend the life of the hose.

Cummins: A Brief Overview

Cummins Inc. is a leader in the automotive industry, known for its commitment to quality and innovation in the production of automotive components. With a rich history of providing reliable and high-performance parts, Cummins continues to be a trusted name in the field, dedicated to advancing technology and improving the efficiency and reliability of vehicles 2.

Molded Hose Part 3686312 Compatibility with Cummins Engines

The molded hose part 3686312, manufactured by Cummins, is designed to fit seamlessly with a range of their high-performance engines. This hose is engineered to meet the stringent requirements of the ISX15 CM2250, ISX15 CM2350 X101, QSX15 CM2250, QSX15 CM2250 ECF, and QSX15 CM2350 X105 engines.

For the ISX15 series, the hose part 3686312 is compatible with both the ISX15 CM2250 and ISX15 CM2350 X101 engines. This hose ensures optimal fluid transfer and pressure management, crucial for maintaining the engine’s efficiency and longevity.

Similarly, the QSX15 series engines, including the QSX15 CM2250, QSX15 CM2250 ECF, and QSX15 CM2350 X105, are also designed to integrate this molded hose. The hose’s design caters to the specific fluid pathways and pressure needs of these engines, ensuring reliable performance and durability.

In summary, the molded hose part 3686312 is a critical component for the ISX15 and QSX15 engine series, providing essential fluid management and pressure regulation.

Understanding the Role of Part 3686312 Molded Hose in Engine Systems

In the intricate network of an engine system, the molded hose, specifically part 3686312, plays a significant role in ensuring the efficient operation of various components. This hose is integral to the breather system, facilitating the smooth functioning of the crankcase and overall engine health.

Breather System Integration

The breather system is designed to release pressure that builds up within the crankcase. Part 3686312 molded hose is a key component in this system, connecting the crankcase to the breather. This connection allows for the safe venting of gases and moisture that accumulate during engine operation. The molded hose ensures that these byproducts are expelled efficiently, preventing pressure build-up that could lead to engine damage.

Crankcase Functionality

The crankcase is a vital part of the engine, housing the crankshaft and connecting rods. It is essential to maintain a clean and pressurized environment within the crankcase to ensure the longevity and performance of these components. Part 3686312 molded hose aids in this by providing a reliable pathway for the breather system to vent excess pressure and contaminants. This helps in maintaining optimal conditions within the crankcase, thereby supporting the smooth operation of the engine.

Plumbing and System Efficiency

In the context of engine plumbing, part 3686312 molded hose is a critical link. It ensures that the breather system is effectively integrated into the engine’s plumbing network. This hose is designed to withstand the pressures and temperatures within the engine, providing a durable and efficient solution for breather system management. Its role in the plumbing system is to facilitate the continuous and safe operation of the breather, contributing to the overall efficiency of the engine.

Crankcase Breather System

The crankcase breather system is responsible for managing the pressure and contaminants within the crankcase. Part 3686312 molded hose is a fundamental component of this system, connecting the crankcase to the breather and allowing for the expulsion of gases and moisture. This connection is vital for the breather system to function correctly, ensuring that the crankcase remains in a stable and clean state. The molded hose’s durability and design make it an essential part of this system, contributing to the engine’s reliability and performance.

Conclusion

The 3686312 Molded Hose is a critical component in the efficient operation of commercial truck systems. Its robust construction, precise design, and compatibility with various Cummins engines make it an essential part for maintaining engine health and performance. Regular maintenance and proper installation are key to ensuring the longevity and reliability of this part.


  1. Dixon, John. Modern Diesel Technology: Heating, Ventilation, Air Conditioning, Refrigeration, 2nd Edition. Cengage Learning, 2014.

  2. Bennett, Sean, and Ian Andrew Norman. Heavy Duty Truck Systems Fifth Edition. Delmar Cengage Learning, 2011.

SPECIFICATIONS

Package Dimensions
6.0 x 1.3 x 1.3 in
Weight
0.3 lbs
* This information is provided as is and may be out of date. Please contact us or the manufacturer to verify warranty coverage.
* Variable geometry turbocharger and electronic actuator repairs are not eligible to be claimed as over-the-counter under New or ReCon parts warranty for parts installed after October 1, 2018.
* Diesel Oxidation Catalyst (DOC), Diesel Particulate Filter (DPF), Selective Catalyst Reduction (SCR) catalyst, and Electronic Control Module (ECM) repairs are not eligible to be claimed as over-the-counter under New or ReCon parts warranty for parts installed after January 1, 2020.
* These restrictions are only applicable to New parts and ReCon parts coverages for the components listed above sold to a customer in the US or Canada. All other coverages are excluded. All other regions are excluded.