7067
Pin Dowel
Cummins®

Introduction

The Pin Dowel 7067, manufactured by Cummins, is a specialized component designed for heavy-duty truck applications. Its primary function is to ensure precise alignment and secure fitting of various mechanical parts within the truck’s engine and other critical assemblies. Cummins, a renowned name in the automotive industry, is known for its high-quality diesel engines and components, and the Pin Dowel 7067 is no exception in terms of reliability and performance ².

Basic Concepts of Pin Dowels

Pin dowels are cylindrical pins used in mechanical assemblies to align and secure components accurately. They play a vital role in maintaining the integrity and functionality of mechanical systems by ensuring that parts fit together correctly. Pin dowels are typically made from durable materials to withstand the stresses and forces encountered in heavy-duty applications. Their function is to provide a reference point for alignment, preventing misalignment that could lead to mechanical failure or reduced efficiency ¹.

Role of Pin Dowel 7067 in Truck Operation

The Pin Dowel 7067 is integral to the operation of heavy-duty trucks, particularly in engine components and other critical assemblies. It ensures that parts such as gears, bearings, and housings are aligned correctly, which is crucial for the smooth operation of the engine. Proper alignment facilitated by the Pin Dowel 7067 helps in reducing wear and tear on moving parts, enhancing the overall efficiency and longevity of the truck’s engine ².

Key Features

The Pin Dowel 7067 is characterized by several key features that enhance its functionality. It is typically made from high-strength steel or other durable materials, ensuring it can withstand the rigors of heavy-duty use. The dimensions of the Pin Dowel 7067 are precisely engineered to fit specific applications, ensuring a snug and secure fit. Additionally, it may feature unique design elements such as chamfered ends to facilitate easy insertion and removal, or a specific surface finish to improve alignment accuracy ².

Benefits

Using the Pin Dowel 7067 offers several benefits in heavy-duty truck applications. It provides improved alignment precision, which is crucial for the efficient operation of mechanical assemblies. The durable material composition ensures enhanced durability and reliability, even under demanding conditions. Furthermore, the precise engineering of the Pin Dowel 7067 contributes to the overall reliability and performance of the truck’s engine and other critical systems ².

Troubleshooting and Maintenance

Common issues with pin dowels may include wear, corrosion, or misalignment. Regular inspection and maintenance can help identify and address these problems early. Maintenance tips include cleaning the dowel and its mating surfaces to remove any debris or corrosion, checking for signs of wear or damage, and ensuring that the dowel is properly lubricated if required. Replacing worn or damaged pin dowels promptly can help maintain the alignment and efficiency of the mechanical assemblies they support ².

Cummins Engines Compatible with Pin Dowel 7067

B Series Engines

• B4.5 CM2350 B129B
• B5.6 CM2670 B152B
• B6.7 CM2350 B135B
• B6.7 CM2670 B153B
• B6.7 CM2670 B164C
• B6.7 G CMOH6.0 B125
• B6.7S

F Series Engines

• F3.8 CM2350 F120B
• F3.8 CM2350 F128C
• F3.8 CM2620 F137B
• F3.8 F102
• F4.5 CM2620 F139B
• F4.5 CM2620 F141C

ISB Series Engines

• ISB CM2150
• ISB CM850
• ISB/ISD4.5 CM2150 B119
• ISB/ISD6.7 CM2150 SN
• ISB4.5 CM2350 B104
• ISB5.9 CM2880 B110
• ISB5.9 CM2880 B140
• ISB5.9 CM2880 B149
• ISB5.9G CM2180

Application and Importance

The Pin Dowel 7067 is designed to maintain precise alignment between various engine components, ensuring that the engine operates smoothly and efficiently. This part is essential in preventing misalignment that could lead to increased wear and potential engine failure. Its use across a wide range of Cummins engines underscores its versatility and critical role in engine assembly and function ².

Role of Part 7067 Pin Dowel in Engine Systems

The Pin Dowel 7067 is integral to the precise alignment and secure fitting of various components within engine systems. Its application ensures that parts function cohesively and efficiently.

Accessory Drive

In the Accessory Drive system, the Pin Dowel aligns the drive components, ensuring that the rotation is transmitted accurately without misalignment, which could lead to inefficiency or damage.

Alternator Bracket

For the Alternator Bracket, the Pin Dowel plays a role in maintaining the structural integrity by ensuring that the bracket is correctly positioned relative to the engine block, allowing for stable alternator operation.

Alternator Mounting and Support

In Alternator Mounting and Alternator Support, the Pin Dowel is used to secure the alternator in place, preventing any movement that could disrupt electrical output or cause mechanical issues.

Compressor and Refrigerant Systems

The Compressor and Refrigerant systems benefit from the Pin Dowel by ensuring that the compressor is correctly aligned with the engine, which is essential for efficient refrigerant flow and compressor performance.

Connection Points

For Connection points, such as the Exhaust Outlet Connection and Water Inlet Connection, the Pin Dowel ensures that these critical junctions are aligned properly, preventing leaks and ensuring efficient flow of exhaust gases and coolant.

Cooler and Engine Oil Systems

In the Cooler and Engine Oil systems, particularly within the Lubricating Oil Cooler Module, the Pin Dowel helps in maintaining the correct alignment of the cooler with the engine, ensuring optimal oil cooling and lubrication.

Drive for Rear Gear Train Accessory

The Drive for the Rear Gear Train Accessory relies on the Pin Dowel to ensure that the drive components are correctly aligned, which is vital for the smooth operation of the gear train.

Gear Pump Housing

The Gear Pump Housing uses the Pin Dowel to ensure that the pump is correctly positioned, which is important for maintaining the pressure and flow of lubricants within the engine.

Injector Remover

For tools like the Injector Remover, the Pin Dowel ensures that the tool is correctly aligned with the engine components, facilitating safe and effective removal of injectors.

Refrigerant Compressor Support and Alternator Support

In the Refrigerant Compressor Support and general Support for the Alternator, the Pin Dowel is used to secure these components in place, ensuring they remain stable under operational conditions.

Tuned Vibration Damper

Finally, in the Tuned Vibration Damper, the Pin Dowel ensures that the damper is correctly aligned with the crankshaft, which is essential for reducing vibrations and ensuring smooth engine operation.

Conclusion

The Pin Dowel 7067 by Cummins is a critical component in ensuring the precise alignment and secure fitting of various engine components in heavy-duty trucks. Its application across multiple Cummins engine models underscores its importance in maintaining engine efficiency, reliability, and longevity. Regular maintenance and prompt replacement of worn or damaged pin dowels are essential to ensure the continued smooth operation of the engine and its components.