{"id":60087,"date":"2026-05-07T18:49:24","date_gmt":"2026-05-07T22:49:24","guid":{"rendered":"https:\/\/allparts.expert\/parts\/uncategorized\/cat-789d-head-as-4400122-caterpillar-440-0122-mining\/"},"modified":"2026-05-07T18:52:09","modified_gmt":"2026-05-07T22:52:09","slug":"cat-789d-head-as-4400122-caterpillar-440-0122-mining","status":"publish","type":"product","link":"https:\/\/allparts.expert\/es\/parts\/mining\/cat-789d-head-as-4400122-caterpillar-440-0122-mining\/","title":{"rendered":"CAT 789D HEAD AS 4400122 | Caterpillar 440-0122 | Mining"},"content":{"rendered":"<p>Title<br \/>\nCaterpillar 440-0122 Head As | Fits 789D, 789G, 789, 789B Excavators<\/p>\n<p>\u2e3b<\/p>\n<p>Opening Paragraph<br \/>\nThe Caterpillar 440-0122 Head As is a precision-engineered OEM replacement component designed for 789D, 789G, 789, and 789B excavators operating in Off-highway Truck and heavy construction environments. Built for structural durability and exact fitment, this head as supports critical assemblies to ensure reliable performance and reduced downtime.<\/p>\n<p>\u2e3b<\/p>\n<p>Common Applications<br \/>\nThis Caterpillar 440-0122 head as is essential for:<br \/>\nProfessional maintenance of CAT excavators.<br \/>\nDirect replacement of worn structural and pivot components.<br \/>\nHeavy-duty Off-highway Truck and earthmoving operations.<br \/>\nMaintaining proper alignment in equipment linkage systems.<\/p>\n<p>\u2e3b<\/p>\n<p>Fits The Following Models<br \/>\nCAT 789D Excavator<br \/>\nCAT 789G Excavator<br \/>\nCAT 789 Excavator<br \/>\nCAT 789B Excavator<br \/>\nCAT 789C Excavator<br \/>\n(Verify fitment with your specific serial number.)<\/p>\n<p>\u2e3b<\/p>\n<p>OEM Reference<br \/>\nPart Number: 440-0122<br \/>\nBrand: Caterpillar<br \/>\nCategory: Off-highway Truck<br \/>\nMachine Type: Hydraulic Excavator<br \/>\nCondition: OEM \/ Genuine-Style Replacement<\/p>\n<p>\u2e3b<\/p>\n<p>Product Details and Availability<br \/>\nIn Stock (if confirmed).<br \/>\nGlobal Shipping Available.<br \/>\nSerial Number Verification Support.<br \/>\nRequest Fast Quote for Current Market Pricing.<\/p>\n<p>Access full technical specifications and availability here:<br \/>\n<a href=\"https:\/\/allparts.expert\/es\/parts\/mining\/cat-789d-head-as-4400122-caterpillar-440-0122-mining\/\">https:\/\/allparts.expert\/parts\/mining\/cat-789d-head-as-4400122-caterpillar-440-0122-mining\/<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Direct OEM Genuine<br \/>\nMulti-Model Compatibility<br \/>\nHeavy-Duty Mining Grade<br \/>\nSerial Verification Available<br \/>\nWorldwide Shipping<\/p>","protected":false},"featured_media":0,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false,"_joinchat":[]},"product_brand":[36],"machine-type":[27696],"model_no":[1377,1378,1382,1380,1381,105,1379,1485,1482,1484,1483,4607],"product_cat":[144],"product_tag":[404207,404220,404216,404210,404211,404212,404208,404209,404219,404217,404214,404206,404215,404218,404205,404213],"class_list":{"0":"post-60087","1":"product","2":"type-product","3":"status-publish","5":"product_brand-caterpillar","6":"machine-type-off-highway-truck","7":"model_no-1377","8":"model_no-789b","9":"model_no-789c","10":"model_no-789d","11":"model_no-789g","12":"model_no-793b","13":"model_no-793c","14":"model_no-794-ac","15":"model_no-796-ac","16":"model_no-1484","17":"model_no-798-ac","18":"model_no-mt4400d-ac","19":"product_cat-mining","20":"product_tag-440-0122-head-assembly","21":"product_tag-440-0122-head-for-caterpillar-trucks","22":"product_tag-440-0122-off-highway-truck-parts","23":"product_tag-789-440-0122-caterpillar-part","24":"product_tag-789b-head-as-440-0122","25":"product_tag-789c-440-0122-replacement","26":"product_tag-789d-head-part-440-0122","27":"product_tag-789g-440-0122-head-as","28":"product_tag-789g-head-assembly-440-0122","29":"product_tag-buy-440-0122-head-as","30":"product_tag-cat-440-0122-head-assembly","31":"product_tag-cat-440-0122-parts","32":"product_tag-caterpillar-440-0122-for-789-series","33":"product_tag-caterpillar-440-0122-for-789d","34":"product_tag-caterpillar-440-0122-head-as","35":"product_tag-off-highway-truck-440-0122","37":"first","38":"instock","39":"shipping-taxable","40":"product-type-simple"},"acf":[],"_links":{"self":[{"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/product\/60087","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=60087"}],"wp:attachment":[{"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/media?parent=60087"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/product_brand?post=60087"},{"taxonomy":"machine-type","embeddable":true,"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/machine-type?post=60087"},{"taxonomy":"model_no","embeddable":true,"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/model_no?post=60087"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/product_cat?post=60087"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/product_tag?post=60087"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}