CATERPILLAR 178-7278 Arm AS 1787278

Caterpillar 178-7278 Arm AS – OEM-Grade Replacement for D11 Series Track-Type Tractors

The Caterpillar 178-7278 Arm AS is a precision-engineered heavy equipment component designed specifically for D11 series track-type tractors, including models AMA-D11T, JEL-D11T, 7PZ-D11R, 9TR-D11R, and GEB-D11T. Manufactured to meet stringent OEM specifications, this arm assembly ensures optimal integration with the drivetrain and undercarriage systems, delivering superior durability and performance under extreme load conditions. Crafted from high-grade alloy steel with advanced metallurgy treatments, the 178-7278 Arm AS offers exceptional resistance to wear, fatigue, and impact, making it ideal for heavy-duty earthmoving and construction applications.

This arm assembly features precise dimensional tolerances to maintain alignment and structural integrity within the tractor’s track system, reducing downtime and maintenance costs. Its robust design supports efficient load transfer and enhances the overall operational stability of the D11 series tractors, ensuring consistent performance in challenging terrains. By utilizing the Caterpillar 178-7278 Arm AS, operators benefit from extended service life, improved machine reliability, and adherence to Caterpillar’s strict quality standards, making it a trusted choice for heavy equipment maintenance and repair.

🔗 For detailed specifications and to purchase the Caterpillar 178-7278 Arm AS, visit the official product page at Caterpillar 178-7278 Arm AS on AllParts.Expert.