{"id":54646,"date":"2026-02-25T21:49:01","date_gmt":"2026-02-26T02:49:01","guid":{"rendered":"https:\/\/allparts.expert\/parts\/uncategorized\/cat-777d-3t-0278-transmission-ar-3t0278-caterpillar-mining\/"},"modified":"2026-02-25T21:49:04","modified_gmt":"2026-02-26T02:49:04","slug":"cat-777d-3t-0278-transmission-ar-3t0278-caterpillar-mining","status":"publish","type":"product","link":"https:\/\/allparts.expert\/es\/parts\/mining\/cat-777d-3t-0278-transmission-ar-3t0278-caterpillar-mining\/","title":{"rendered":"CAT 777D 3T-0278 TRANSMISSION AR 3T0278 | Caterpillar | Mining"},"content":{"rendered":"

Title
\nCaterpillar 3T-0278 Transmission Ar 3T0278 | Fits 777D, 776D, 776C Excavators<\/p>\n

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Opening Paragraph
\nThe Caterpillar 3T-0278 Transmission Ar 3T0278 is a precision-engineered OEM replacement component designed for 777D, 776D, and 776C excavators operating in mining and heavy construction environments. Built for structural durability and exact fitment, this 3T-0278 transmission ar 3T0278 supports critical assemblies to ensure reliable performance and reduced downtime.<\/p>\n

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Common Applications
\nThis Caterpillar 3T-0278 transmission ar 3T0278 is essential for:
\n– Professional maintenance of CAT excavators.
\n– Direct replacement of worn structural and pivot components.
\n– Heavy-duty mining and earthmoving operations.
\n– Maintaining proper alignment in equipment linkage systems.<\/p>\n

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Fits The Following Models
\n– CAT 777D Excavator
\n– CAT 776D Excavator
\n– CAT 776C Excavator
\n– CAT 777C Excavator
\n(Verify fitment with your specific serial number.)<\/p>\n

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OEM Reference
\nPart Number: 3T-0278
\nBrand: Caterpillar
\nCategory: Mining
\nMachine Type: Hydraulic Excavator
\nCondition: OEM \/ Genuine-Style Replacement<\/p>\n

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Product Details and Availability
\nIn Stock (if confirmed).
\nGlobal Shipping Available.
\nSerial Number Verification Support.
\nRequest Fast Quote for Current Market Pricing.<\/p>\n

Access full technical specifications and availability here:
\nhttps:\/\/allparts.expert\/parts\/mining\/cat-777d-3t-0278-transmission-ar-3t0278-caterpillar-mining\/<\/a><\/p>","protected":false},"excerpt":{"rendered":"

Direct OEM Genuine
\nMulti-Model Compatibility
\nHeavy-Duty Mining Grade
\nSerial Verification Available
\nWorldwide Shipping<\/p>","protected":false},"featured_media":54538,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false,"_joinchat":[]},"product_brand":[36],"machine-type":[27696],"model_no":[2559,2541,2457,2552,2542,2458],"product_cat":[144],"product_tag":[364299,364293,364296,364279,364300,364290,364285,364288,364282,246367,364292,364295,364278,356737,183592,364284,364287,364281,364298,303910,364291,364294,364277,286915,364289,364283,364286,364280,364297],"class_list":{"0":"post-54646","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_brand-caterpillar","7":"machine-type-off-highway-truck","8":"model_no-776b","9":"model_no-776c","10":"model_no-776d","11":"model_no-777b","12":"model_no-777c","13":"model_no-777d","14":"product_cat-mining","15":"product_tag-2tk-776c-caterpillar-truck","16":"product_tag-2yw-777d-caterpillar-truck","17":"product_tag-3pr-777d-caterpillar-truck","18":"product_tag-3t-0278-caterpillar-transmission","19":"product_tag-4xj-777c-caterpillar-truck","20":"product_tag-5er-776d-caterpillar-truck","21":"product_tag-afs-776d-caterpillar-truck","22":"product_tag-agc-777d-caterpillar-truck","23":"product_tag-agy-777d-caterpillar-truck","24":"product_tag-cat-2tk-776c-parts","25":"product_tag-cat-2yw-777d-parts","26":"product_tag-cat-3pr-777d-parts","27":"product_tag-cat-3t-0278-parts","28":"product_tag-cat-4xj-777c-parts","29":"product_tag-cat-5er-776d-parts","30":"product_tag-cat-afs-776d-parts","31":"product_tag-cat-agc-777d-parts","32":"product_tag-cat-agy-777d-parts","33":"product_tag-cat-fkr-777d-parts","34":"product_tag-caterpillar-2tk-776c-off-highway-truck","35":"product_tag-caterpillar-2yw-777d-off-highway-truck","36":"product_tag-caterpillar-3pr-777d-off-highway-truck","37":"product_tag-caterpillar-3t-0278-transmission","38":"product_tag-caterpillar-4xj-777c-off-highway-truck","39":"product_tag-caterpillar-5er-776d-off-highway-truck","40":"product_tag-caterpillar-afs-776d-off-highway-truck","41":"product_tag-caterpillar-agc-777d-off-highway-truck","42":"product_tag-caterpillar-agy-777d-off-highway-truck","43":"product_tag-fkr-777d-caterpillar-off-highway-truck","45":"first","46":"instock","47":"shipping-taxable","48":"product-type-simple"},"acf":[],"_links":{"self":[{"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/product\/54646","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=54646"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/media\/54538"}],"wp:attachment":[{"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/media?parent=54646"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/product_brand?post=54646"},{"taxonomy":"machine-type","embeddable":true,"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/machine-type?post=54646"},{"taxonomy":"model_no","embeddable":true,"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/model_no?post=54646"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/product_cat?post=54646"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/product_tag?post=54646"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}