CATERPILLAR 3T-1121 Lock AS 3T1121

Caterpillar 3T-1121 Lock AS – OEM-Grade Durability and Precision for Track-Type Loaders and Tractors

The Caterpillar 3T-1121 Lock AS is a critical component engineered for optimal performance and reliability in demanding heavy equipment applications. Designed to fit a wide range of Caterpillar track-type loaders, skidders, and tractors, this lock assembly ensures secure drivetrain connections under high load conditions. Manufactured from premium-grade metallurgy, the 3T-1121 delivers exceptional wear resistance and longevity, maintaining structural integrity even in harsh environments. Its precise dimensions and robust construction guarantee compatibility and seamless integration with models such as the 57D-977, 84G-951, 7PK-D4HTSK III, and 7TL-D9R, among others.

This lock assembly plays a vital role in maintaining drivetrain stability and operational safety by preventing unwanted component slippage and misalignment. The 3T-1121 Lock AS is engineered to withstand intense torque and vibration, enhancing the overall durability of your Caterpillar machinery. Its design optimizes load distribution and reduces maintenance downtime, contributing to improved machine availability and productivity. Whether used in track-type skidders or heavy-duty tractors, this lock assembly meets stringent OEM specifications, ensuring peak performance and reliability throughout the equipment’s service life.

🔗 For more detailed specifications and to purchase the Caterpillar 3T-1121 Lock AS, visit Caterpillar 3T-1121 Lock AS product page.

Related part numbers: 57D-977, 84G-951, 84G-955, 98G-951, 5NH-4P, 7PK-D4HTSK III, 8ZF-D4HTSK II, 7EG-D5HTSK II, 7BG-54H, 5WW-517, 6PW-517, 2RS-527, 4NS-527, JSR-527, PTR-527, 9JA-56H, 3SH-6, 4NH-6A, 3TH-6SU, 5CH-6S, 9EB-57H, 1BH-6A, 1CH-6SU, 1DH-6S, 1EH-6, 7PZ-D11R, AAF-D11R, 7TL-D9R, 8BL-D9R, 3KR-D10R, 2YN-D6R, 8LN-D6R, 7XM-D8R, 5EC-4P, 2TC-4S, 4HC-4S