{"id":61477,"date":"2026-06-18T19:46:04","date_gmt":"2026-06-18T23:46:04","guid":{"rendered":"https:\/\/allparts.expert\/parts\/uncategorized\/cat-740-shaft-idler-1392403-caterpillar-139-2403-mining\/"},"modified":"2026-06-18T19:46:07","modified_gmt":"2026-06-18T23:46:07","slug":"cat-740-shaft-idler-1392403-caterpillar-139-2403-mining","status":"publish","type":"product","link":"https:\/\/allparts.expert\/es\/parts\/mining\/cat-740-shaft-idler-1392403-caterpillar-139-2403-mining\/","title":{"rendered":"CAT 740 SHAFT-IDLER 1392403 | Caterpillar 139-2403 | Mining"},"content":{"rendered":"<p>Title<br \/>\nCaterpillar 139-2403 Shaft-Idler | Fits 740, 735 OEM, 735B, 735 Excavators<\/p>\n<p>\u2e3b<\/p>\n<p>Opening Paragraph<br \/>\nThe Caterpillar 139-2403 Shaft-Idler is a precision-engineered OEM replacement component designed for 740, 735 OEM, 735B, and 735 excavators operating in Articulated Dump Truck and heavy construction environments. Built for structural durability and exact fitment, this shaft-idler supports critical assemblies to ensure reliable performance and reduced downtime.<\/p>\n<p>\u2e3b<\/p>\n<p>Common Applications<br \/>\nThis Caterpillar 139-2403 shaft-idler is essential for:<br \/>\nProfessional maintenance of CAT excavators.<br \/>\nDirect replacement of worn structural and pivot components.<br \/>\nHeavy-duty Articulated Dump 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 740 Excavator<br \/>\nCAT 735 OEM Excavator<br \/>\nCAT 735B Excavator<br \/>\nCAT 735 Excavator<br \/>\nCAT 740B Excavator<br \/>\n(Verify fitment with your specific serial number.)<\/p>\n<p>\u2e3b<\/p>\n<p>OEM Reference<br \/>\nPart Number: 139-2403<br \/>\nBrand: Caterpillar<br \/>\nCategory: Articulated Dump 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-740-shaft-idler-1392403-caterpillar-139-2403-mining\/\">https:\/\/allparts.expert\/parts\/mining\/cat-740-shaft-idler-1392403-caterpillar-139-2403-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":[21022],"model_no":[1817,2518,22283,1827,1510,2544,2543,2547,2546,2545,2548,2549],"product_cat":[144],"product_tag":[418113,418112,418117,418110,418119,418115,418118,418121,418116,418109,418114,418111,418108,391202,418120,390197,1530],"class_list":{"0":"post-61477","1":"product","2":"type-product","3":"status-publish","5":"product_brand-caterpillar","6":"machine-type-articulated-dump-truck","7":"model_no-1817","8":"model_no-735-oem","9":"model_no-735b","10":"model_no-1827","11":"model_no-740b","12":"model_no-2544","13":"model_no-770g","14":"model_no-770g-oem","15":"model_no-2546","16":"model_no-772g","17":"model_no-772g-oem","18":"model_no-773gc","19":"product_cat-mining","20":"product_tag-139-2403-articulated-dump-truck","21":"product_tag-139-2403-for-735b","22":"product_tag-139-2403-idler-for-740","23":"product_tag-139-2403-idler-shaft","24":"product_tag-139-2403-parts-for-cat-735","25":"product_tag-139-2403-replacement-part","26":"product_tag-139-2403-shaft-for-735","27":"product_tag-740b-parts-for-cat-139-2403","28":"product_tag-buy-139-2403-shaft","29":"product_tag-cat-139-2403-parts","30":"product_tag-cat-735-idler-shaft","31":"product_tag-cat-740-shaft-idler","32":"product_tag-caterpillar-139-2403-shaft-idler","33":"product_tag-caterpillar-735-oem-parts","34":"product_tag-caterpillar-735b-shaft-idler","35":"product_tag-caterpillar-740-parts","36":"product_tag-caterpillar-740b-parts","38":"first","39":"instock","40":"shipping-taxable","41":"product-type-simple"},"acf":[],"_links":{"self":[{"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/product\/61477","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=61477"}],"wp:attachment":[{"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/media?parent=61477"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/product_brand?post=61477"},{"taxonomy":"machine-type","embeddable":true,"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/machine-type?post=61477"},{"taxonomy":"model_no","embeddable":true,"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/model_no?post=61477"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/product_cat?post=61477"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/product_tag?post=61477"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}