7V6398 STACK A

7V6398 STACK A CATERPILLAR – Durable Vertical Exhaust Stack for Caterpillar Heavy Machinery

The 7V6398 STACK A CATERPILLAR is a premium vertical exhaust stack engineered to meet the demands of heavy-duty Caterpillar machinery operating in rugged and high-temperature environments. Designed to safely expel exhaust gases away from sensitive components and operator zones, this component plays a key role in maintaining emission system efficiency, engine safety, and environmental compliance.

Built from industrial-grade, powder-coated steel, the 7V6398 Stack A is designed for vertical orientation and features a wide circular base flange that provides excellent mounting stability. Whether your equipment operates in mining, construction, forestry, or agriculture, this stack offers unmatched performance, strength, and long-term resistance to thermal stress, vibration, and corrosion.

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Key Features of the 7V6398 STACK A CATERPILLAR

• Vertical Discharge Design
  Directs hot exhaust gases upward, preventing recirculation and minimizing heat exposure to operators and machinery.

• Heavy-Duty Construction
  Manufactured from thick, black powder-coated steel to resist high exhaust temperatures and environmental corrosion.

• Welded Base Flange
  Includes a precision-engineered circular flange with bolt holes for secure, leak-free mounting to compatible Caterpillar exhaust systems.

• Smooth Interior Flow Path
  Reduces carbon buildup and enhances consistent gas flow, optimizing overall engine performance and emissions control.

• Long-Lasting Finish
  The matte black coating provides thermal stability, UV resistance, and a professional finish that matches OEM standards.

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Technical Specifications

• Product Name: 7V6398 STACK A CATERPILLAR

• Material: Powder-coated carbon steel

• Color: Matte black

• Design Type: Vertical exhaust stack with flange

• Length: Approx. 600–700 mm (based on visual scale)

• Outer Diameter: Approx. 89 mm (3.5 inches)

• Mounting: Circular base flange with bolt holes

• Heat Resistance: Up to 650°C

• Weight: Approx. 2.5–3.0 kg

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Compatibility – Caterpillar Models That Use 7V6398 STACK A

The 7V6398 STACK A CATERPILLAR is compatible with a range of Caterpillar machines that utilize vertical exhaust configurations. This part number is often used in equipment designed for high-load, all-weather operations. Compatible models include:

• Caterpillar D6R / D6T Track-Type Tractors

• Caterpillar 938G / 950G Wheel Loaders

• Caterpillar 320C / 322CL Hydraulic Excavators

• Caterpillar 140H / 160H Motor Graders

• Caterpillar 430D / 444F Backhoe Loaders

• Caterpillar 769D / 773B Off-Highway Trucks

• Caterpillar 963C Track Loaders

It is recommended to always verify compatibility using the machine’s official parts manual or consult 3GEN Export for fitment assistance.

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Application Environments

The 7V6398 STACK A CATERPILLAR is ideal for heavy-duty environments where vertical exhaust flow is critical to machine safety and operator comfort:

• Construction – Keeps exhaust away from operators and structures on busy job sites.

• Mining & Quarrying – Prevents particulate buildup and ensures consistent gas discharge underground or at high altitudes.

• Forestry – Protects equipment in fire-prone or debris-heavy areas by channeling heat and emissions upward.

• Agriculture – Reduces ground-level emissions in open fieldwork while maintaining compliance with emission standards.

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Functional Advantages

Choosing the 7V6398 STACK A CATERPILLAR ensures:

• Improved engine performance by reducing backpressure

• Enhanced operator safety by redirecting hot gases away from cabins

• Longer exhaust system life thanks to rust and temperature resistance

• Seamless OEM integration into the original Caterpillar exhaust configuration

• Reduced emissions risk in sensitive job sites or regulatory zones

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Installation Instructions

Installing the 7V6398 exhaust stack is a straightforward process and can be completed using standard workshop tools:

1. Ensure the machine is powered down and the engine is cool.

2. Remove any damaged or rusted exhaust stack (if replacing).

3. Position the 7V6398 stack flange against the mounting surface.

4. Align the bolt holes and fasten securely using heat-resistant hardware (not included).

5. Check for a tight fit and no visible gaps or leaks.

Tip: Pairing the 7V6398 Stack A with a rain cap (e.g., 7S4993 or 7S4994) is strongly recommended for outdoor or idle storage protection.

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Maintenance Recommendations

• Perform visual inspections during scheduled maintenance cycles.

• Check flange bolts for tightness after high-vibration or heavy-load jobs.

• Clean the interior periodically to prevent carbon accumulation.

• Recoat the exterior if scratched to prevent corrosion over time.

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Why Choose 3GEN Export?

At 3GEN Export, we specialize in delivering high-quality, OEM-level heavy machinery spare parts that you can count on. When you choose the 7V6398 STACK A CATERPILLAR from us, you benefit from:

• OEM-grade engineering and dimensional accuracy

• Global delivery within 5 working days

• Secure packaging and worldwide shipping options

• Trusted by industry professionals in over 50 countries

• Backed by a 1-year manufacturer’s warranty

From the smallest fittings to the largest exhaust systems, 3GEN Export ensures your Caterpillar machines keep working without compromise.

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Conclusion

The 7V6398 STACK A CATERPILLAR is a purpose-built exhaust component designed to enhance performance, safety, and durability in the world’s toughest industries. Its vertical design, robust build, and wide model compatibility make it a dependable choice for any heavy machinery operator or fleet manager.

Order now from 3GEN Export and receive fast, reliable delivery with quality you can trust — wherever your machines are in the world.

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Manufactured in Turkey, these products are made using the latest technologies and built to meet the highest international standards. Each machine is a high-quality copy of the original, ensuring durability, precision, and performance that you can rely on for modern construction and metalworking projects.