{"id":11113,"date":"2025-07-10T15:16:16","date_gmt":"2025-07-10T19:16:16","guid":{"rendered":"https:\/\/allparts.expert\/parts\/uncategorized\/caterpillar-3t-1121-lock-as-3t1121\/"},"modified":"2025-07-10T15:16:18","modified_gmt":"2025-07-10T19:16:18","slug":"caterpillar-3t-1121-lock-as-3t1121","status":"publish","type":"product","link":"https:\/\/allparts.expert\/es\/parts\/mining\/caterpillar-3t-1121-lock-as-3t1121\/","title":{"rendered":"CATERPILLAR 3T-1121 Lock AS 3T1121"},"content":{"rendered":"

Caterpillar 3T-1121 Lock AS \u2013 OEM-Grade Durability and Precision for Track-Type Loaders and Tractors<\/strong><\/p>\n

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.<\/p>\n

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\u2019s service life.<\/p>\n

\ud83d\udd17 For more detailed specifications and to purchase the Caterpillar 3T-1121 Lock AS, visit Caterpillar 3T-1121 Lock AS product page<\/a>.<\/p>\n

Related part numbers:<\/strong> 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<\/p>","protected":false},"excerpt":{"rendered":"

57D-977 Track-type Loader
\n84G-951 Track-type Loader
\n84G-955 Track-type Loader
\n98G-951 Track-type Loader
\n5NH-4P Track-type Skidder
\n7PK-D4HTSK III Track-type Skidder
\n8ZF-D4HTSK II Track-type Skidder
\n7EG-D5HTSK II Track-type Skidder
\n7BG-54H Track-type Skidder
\n5WW-517 Track-type Skidder
\n6PW-517 Track-type Skidder
\n2RS-527 Track-type Skidder
\n4NS-527 Track-type Skidder
\nJSR-527 Track-type Skidder
\nPTR-527 Track-type Skidder
\n9JA-56H Track-type Tractor
\n3SH-6 Track-type Tractor
\n4NH-6A Track-type Tractor
\n3TH-6SU Track-type Tractor
\n5CH-6S Track-type Tractor
\n9EB-57H Track-type Tractor
\n1BH-6A Track-type Tractor
\n1CH-6SU Track-type Tractor
\n1DH-6S Track-type Tractor
\n1EH-6 Track-type Tractor
\n7PZ-D11R Track-type Tractor
\nAAF-D11R Track-type Tractor
\n7TL-D9R Track-type Tractor
\n8BL-D9R Track-type Tractor
\n3KR-D10R Track-type Tractor
\n2YN-D6R Track-type Tractor
\n8LN-D6R Track-type Tractor
\n7XM-D8R Track-type Tractor
\n5EC-4P Track-type Tractor
\n2TC-4S Track-type Tractor
\n4HC-4S Track-type Tractor
\n6HH-6A Tra<\/p>","protected":false},"featured_media":10903,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false,"_joinchat":[]},"product_brand":[36],"machine-type":[22253],"model_no":[25992,25993,3090,3091,3092,3093,38903,38889,38890,38892,3095,38901,38900,21060,21404,1671,1672,1673,38888,38902,38899,38896,38898,38897,20589,20585,20587,41230,20586,20588,19942,19940,21058,21059,1670,40205,40206,40207,1674,1675,2678,95,8524,1824,3096,38905,38894,38891,737,38904,38895,2068,2069,27950,69,2071,2072,27951,1682,11938,1666],"product_cat":[144],"product_tag":[51629,51628,51621,51619,51622,51623,51625,51627,51624,51620,51626,51618,51631,51630],"class_list":{"0":"post-11113","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_brand-caterpillar","7":"machine-type-track-type-loader","8":"model_no-25992","9":"model_no-25993","10":"model_no-3090","11":"model_no-4a","12":"model_no-4p","13":"model_no-4s","14":"model_no-38903","15":"model_no-38889","16":"model_no-38890","17":"model_no-54h","18":"model_no-3095","19":"model_no-38901","20":"model_no-56h","21":"model_no-57h","22":"model_no-21404","23":"model_no-58l","24":"model_no-59l","25":"model_no-59n","26":"model_no-5p","27":"model_no-5s","28":"model_no-38899","29":"model_no-6a","30":"model_no-6s","31":"model_no-6su","32":"model_no-20589","33":"model_no-7a","34":"model_no-7s","35":"model_no-7s-lgp","36":"model_no-7su","37":"model_no-7u","38":"model_no-19942","39":"model_no-8a","40":"model_no-8su","41":"model_no-8u","42":"model_no-1670","43":"model_no-40205","44":"model_no-40206","45":"model_no-40207","46":"model_no-9su","47":"model_no-9u","48":"model_no-d10n","49":"model_no-d10r","50":"model_no-d11n","51":"model_no-d11r","52":"model_no-d4h","53":"model_no-d4h-iii","54":"model_no-d4htsk-ii","55":"model_no-d4htsk-iii","56":"model_no-d5","57":"model_no-d5h","58":"model_no-d5htsk-ii","59":"model_no-d6h","60":"model_no-d6r","61":"model_no-d6r-ii","62":"model_no-d7g","63":"model_no-d7h","64":"model_no-d7r","65":"model_no-d7r-ii","66":"model_no-d8r","67":"model_no-d8r-ii","68":"model_no-d9r","69":"product_cat-mining","70":"product_tag-1bh-6a-track-tractor-lock","71":"product_tag-3kr-d10r-tractor-spare-parts","72":"product_tag-3t-1121-track-type-loader-lock","73":"product_tag-3t1121-lock-assembly","74":"product_tag-57d-977-track-loader-parts","75":"product_tag-7pk-d4htsk-skidder-lock","76":"product_tag-7tl-d9r-tractor-lock-assembly","77":"product_tag-8zf-d4htsk-ii-lock","78":"product_tag-9ja-56h-track-tractor-parts","79":"product_tag-cat-3t-1121-spare-part","80":"product_tag-cat-track-type-skidder-parts","81":"product_tag-caterpillar-3t-1121-lock-as","82":"product_tag-construction-machinery-cat-lock-parts","83":"product_tag-mining-equipment-lock-3t-1121","85":"first","86":"instock","87":"shipping-taxable","88":"product-type-simple"},"acf":[],"_links":{"self":[{"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/product\/11113","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/comments?post=11113"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/media\/10903"}],"wp:attachment":[{"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/media?parent=11113"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/product_brand?post=11113"},{"taxonomy":"machine-type","embeddable":true,"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/machine-type?post=11113"},{"taxonomy":"model_no","embeddable":true,"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/model_no?post=11113"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/product_cat?post=11113"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/product_tag?post=11113"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}