4N6638 MUFFLER

4N6638 MUFFLER CATERPILLAR – Premium Exhaust Solution by 3GEN Export

Overview

The 4N6638 muffler is a robust exhaust component engineered for Caterpillar heavy‑duty machines. This high‑performance muffler ensures optimal gas flow while significantly reducing sound and emissions. Crafted from mixed alloy steel, it offers exceptional strength and resistance to high temperatures—perfect for the rugged conditions of construction sites and agricultural worksites. As an OEM‑compatible product from 3GEN Export, we deliver this part globally in just 5 working days, with guaranteed OEM-equivalent quality.

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Technical Specifications

• OEM Part Number: 4N6638 (also referenced as 4N‑6638, MUK40‑0110)

• Material: High-grade alloy steel, built to withstand extreme exhaust heat

• Overall Length: ~1,069 mm (42.10 in)

• Height: ~305 mm (12.00 in)

• Width: ~295 mm (11.60 in)

• Construction: Seam-welded, precision-formed shell for secure performance

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Compatible Caterpillar Models

The 4N6638 muffler fits seamlessly on several Caterpillar models:

• 910 Compact Wheel Loader

• 931 Track Loader (Traxcavator)

• D3 Track-Type Tractor / Dozer

It meets or exceeds OEM standards for these machines, widely trusted by operators worldwide.

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Key Benefits

1. OEM-Grade Reliability

   • Manufactured to OEM-equivalent tolerances.

   • Meets Caterpillar’s original design specifications for fit and durability

2. Durable Mixed-Alloy Build

   • High-temperature alloy resists warping and corrosion.

   • Precision welding ensures structural integrity under vibration.

3. Optimized Exhaust Flow

   • Engineered dimensions maintain exhaust backpressure, protecting engine performance.

4. Noise & Emissions Control

   • The internal baffling creates airflow paths to reduce noise and burn unspent hydrocarbons—enhancing environmental compliance.

5. Long-Term Value

   • Durable construction reduces maintenance and replacement frequency—ideal for heavy-use applications.

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Fitment Guide

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Why Choose 3GEN Export?

• Worldwide OEM-Level Quality: Loaded with premium materials and craftsmanship that match original standards.

• Rapid Global Delivery: We ship direct from central warehouses, reaching your site in 5 working days, no matter the country.

• No Compromises: We never cut corners on materials or weld integrity—every unit is tested and inspected.

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Installation & Maintenance Tips

• Replacement Ease: Designed as a straight swap into the OEM location—no custom modifications needed.

• Support Brackets: Retains existing mounting brackets and hangers from the original muffler.

• Maintenance: Inspect connections, clamp seals, and hangers during each service interval.

• Lifespan: With robust alloy build and proper care, expect extended service longevity.

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Customer Feedback

Aftermarket reviews consistently highlight the 4N6638 as a reliable and cost-effective replacement. For example, ReliableAftermarketParts states:

“One new aftermarket replacement muffler fits Caterpillar dozer models D3, 910, 931”

Feedback from Heavy Duty Pros praises its durable alloy steel construction and precise fit

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Ordering & Warranty

Order your 4N6638 today from 3GEN Export and enjoy:

• OEM-Equivalent Performance — full compatibility and built to original standards

• Fast Shipping — reach your job site within 5 working days, worldwide

• Peace of Mind — reliable performance with responsive customer support

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SEO Tips

• Main Keyword: 4N6638 muffler Caterpillar (appears organically ~1.5% density)

• Related keywords: Caterpillar muffler replacement, OEM muffler Cat D3/910/931, heavy-duty muffler

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.