{"id":26969,"date":"2025-09-08T20:06:43","date_gmt":"2025-09-09T00:06:43","guid":{"rendered":"https:\/\/allparts.expert\/parts\/uncategorized\/caterpillar-8t-0391-locknut-8t0391\/"},"modified":"2025-09-08T20:06:45","modified_gmt":"2025-09-09T00:06:45","slug":"caterpillar-8t-0391-locknut-8t0391","status":"publish","type":"product","link":"https:\/\/allparts.expert\/es\/parts\/mining\/caterpillar-8t-0391-locknut-8t0391\/","title":{"rendered":"CATERPILLAR 8T-0391 Locknut 8T0391"},"content":{"rendered":"

Caterpillar 8T-0391 Locknut \u2013 OEM-Grade Durability for Excavators and Material Handlers<\/strong>
\nThe Caterpillar 8T-0391 locknut is engineered to meet the rigorous demands of heavy-duty excavators and material handlers, ensuring secure fastening under extreme load conditions. Compatible with a wide range of Caterpillar models including 6TL-M312, 7ML-M315, 8AL-M318, and numerous MH series machines, this locknut features precision threading and high-grade steel metallurgy designed to resist wear, corrosion, and mechanical fatigue. With exact dimensions tailored for optimal fitment, the 8T-0391 locknut maintains drivetrain integrity and prevents loosening caused by vibration and heavy operational stress.<\/p>\n

Constructed from hardened alloy steel with superior tensile strength, the 8T-0391 locknut delivers exceptional performance in harsh environments typical of forestry, excavation, and material handling applications. Its robust design enhances the longevity of critical assemblies by providing reliable torque retention and minimizing maintenance intervals. This locknut is a vital component for maintaining the structural stability of your Caterpillar equipment, ensuring operational safety and efficiency. Trust in OEM-grade quality to keep your machinery running smoothly with precision-engineered parts that meet Caterpillar\u2019s stringent specifications.<\/p>\n

\ud83d\udd17 For genuine Caterpillar 8T-0391 locknuts with guaranteed compatibility and durability, visit Caterpillar 8T-0391 Locknut at AllParts Expert<\/a> to secure your equipment\u2019s performance today.<\/p>","protected":false},"excerpt":{"rendered":"

6TL-M312 Excavator
\n7ML-M315 Excavator
\n8AL-M318 Excavator
\n2RC-206 Excavator
\n3GC-206 Excavator
\n5DC-212 Excavator
\n4CF-214B Excavator
\nF4D-M315F Excavator
\n6ES-M318 Excavator
\n8SS-M318 Excavator
\n6WL-M320 Excavator
\n9PS-M320 Excavator
\nKAY-M325D L MH Excavator
\nKGG-M325D L MH Excavator
\nEDF-M325D MH Excavator
\n9BF-206B Excavator
\n3PJ-212B Excavator
\n9MF-214B FT Excavator
\n7WF-224B Excavator
\nF6P-M317F Excavator
\nFB8-M318F Excavator
\n1FM-574 Forest Products
\n1AM-554 Forest Products
\nCZZ-574B Forest Products
\nFB3-MH3022 Material Handler
\nFM2-MH3022 Material Handler
\nEXT-MH3040 Material Handler
\nFKH-MH3040 Material Handler
\nFME-MH3022 Material Handler
\nFB5-MH3024 Material Handler
\nFM4-MH3024 Material Handler
\nKH4-MH3024 Material Handler
\nFB7-MH3024 Material Handler
\nFB9-MH3026 Material Handler
\nETE-M325D L MATERIAL HANDLER Material Handler
\nGE8-M325D MATERIAL HANDLER Material Handler
\nKH2-MH3022 Material Handler
\nKA4-MH3024 Material Handler
\nK33-MH3032 Material Handler
\nK3E-MH3032 Material Handler
\nKEY-MH3032<\/p>","protected":false},"featured_media":25399,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false,"_joinchat":[]},"product_brand":[36],"machine-type":[52],"model_no":[73333,41335,72191,41336,38120,38119,38121,56170,56169,56171,56172,56174,56179,56165,46738,53449,39037,7215,39045,7083,95105,57382,1050,77924,100478,1051,95104,57379,57383,66891,1052,1053,74942,667,100477,57385,57384,66892,2811,2812,74943,668,57380,133,100479,2813,2814,1070,741,2815,669,57381,2816,57386,1071,153384,57387,27671,27653,27672,27648,1008,1009,1010,729,730,40297],"product_cat":[144],"product_tag":[158506,158460,158507,158505,158456,158457,158504,158515,158514,158503,23011,158500,158502,158516,158511,158508,158509,158510,158512,158513],"class_list":{"0":"post-26969","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_brand-caterpillar","7":"machine-type-excavator","8":"model_no-73333","9":"model_no-206b","10":"model_no-72191","11":"model_no-212b","12":"model_no-214b","13":"model_no-214b-ft","14":"model_no-224b","15":"model_no-301-7d","16":"model_no-301-7d-cr","17":"model_no-302-2d","18":"model_no-302-4d","19":"model_no-302-7d","20":"model_no-303-5e2","21":"model_no-303e-cr","22":"model_no-304-5e2","23":"model_no-53449","24":"model_no-39037","25":"model_no-7215","26":"model_no-574b","27":"model_no-m312","28":"model_no-m313c","29":"model_no-m313d","30":"model_no-m314","31":"model_no-m314-07","32":"model_no-m314f","33":"model_no-m315","34":"model_no-m315c","35":"model_no-m315d","36":"model_no-m315d2","37":"model_no-m315f","38":"model_no-m315gc","39":"model_no-m316","40":"model_no-m316c","41":"model_no-m316d","42":"model_no-m316f","43":"model_no-m317-2","44":"model_no-m317d2","45":"model_no-m317f","46":"model_no-m318","47":"model_no-m318c","48":"model_no-m318c-mh","49":"model_no-m318d","50":"model_no-m318d-mh","51":"model_no-m318f","52":"model_no-m319","53":"model_no-m320","54":"model_no-m320d2","55":"model_no-m320f","56":"model_no-m322","57":"model_no-m322c","58":"model_no-m322d","59":"model_no-m322d-mh","60":"model_no-m322d2","61":"model_no-m322d2-mh","62":"model_no-m322f","63":"model_no-m323f","64":"model_no-m324d2-mh","65":"model_no-m325d-l-material-handler","66":"model_no-m325d-l-mh","67":"model_no-m325d-material-handler","68":"model_no-m325d-mh","69":"model_no-mh3022","70":"model_no-mh3024","71":"model_no-mh3026","72":"model_no-mh3032","73":"model_no-mh3040","74":"model_no-mh3050","75":"product_cat-mining","76":"product_tag-2rc-206-locknut","77":"product_tag-4cf-214b-locknut","78":"product_tag-5dc-212-locknut","79":"product_tag-6tl-m312-locknut","80":"product_tag-7ml-m315-locknut","81":"product_tag-8al-m318-locknut","82":"product_tag-8t-0391-excavator-locknut","83":"product_tag-8t-0391-heavy-machinery-parts","84":"product_tag-8t0391-wheel-dozer-parts","85":"product_tag-cat-8t0391-locknut","86":"product_tag-cat-excavator-spare-parts","87":"product_tag-cat-mining-equipment-locknut","88":"product_tag-caterpillar-8t-0391-locknut","89":"product_tag-caterpillar-construction-machinery-locknut","90":"product_tag-caterpillar-forestry-parts-1fm-574","91":"product_tag-fb8-m318f-locknut","92":"product_tag-kay-m325d-locknut","93":"product_tag-material-handler-locknut-8t-0391","94":"product_tag-mh3022-locknut","95":"product_tag-mh3040-locknut-8t0391","97":"first","98":"instock","99":"shipping-taxable","100":"product-type-simple"},"acf":[],"_links":{"self":[{"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/product\/26969","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=26969"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/media\/25399"}],"wp:attachment":[{"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/media?parent=26969"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/product_brand?post=26969"},{"taxonomy":"machine-type","embeddable":true,"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/machine-type?post=26969"},{"taxonomy":"model_no","embeddable":true,"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/model_no?post=26969"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/product_cat?post=26969"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/product_tag?post=26969"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}