{"id":56459,"date":"2026-03-17T17:02:38","date_gmt":"2026-03-17T21:02:38","guid":{"rendered":"https:\/\/allparts.expert\/parts\/uncategorized\/cat-312b-l-frame-ar-undercarriage-1451863-caterpillar-145-1863-mining\/"},"modified":"2026-03-19T09:21:40","modified_gmt":"2026-03-19T13:21:40","slug":"cat-312b-l-frame-ar-undercarriage-1451863-caterpillar-145-1863-mining","status":"publish","type":"product","link":"https:\/\/allparts.expert\/es\/parts\/mining\/cat-312b-l-frame-ar-undercarriage-1451863-caterpillar-145-1863-mining\/","title":{"rendered":"CAT 312B L FRAME AR-UNDERCARRIAGE 1451863 | Caterpillar 145-1863 | Mining"},"content":{"rendered":"

Title
\nCaterpillar 145-1863 Frame Ar-Undercarriage 1451863 | Fits 312B L, 312B, 312B Excavators <\/p>\n

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Opening Paragraph
\nThe Caterpillar 145-1863 Frame Ar-Undercarriage 1451863 is a precision-engineered OEM replacement component designed for 312B L, 312B, and 312B excavators operating in mining and heavy construction environments. Built for structural durability and exact fitment, this frame ar-undercarriage 1451863 supports critical assemblies to ensure reliable performance and reduced downtime. <\/p>\n

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Common Applications
\nThis Caterpillar 145-1863 frame ar-undercarriage 1451863 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 312B L Excavator
\n– CAT 312B Excavator
\n– CAT 312B Excavator
\n– CAT 312B Excavator
\n(Verify fitment with your specific serial number.) <\/p>\n

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OEM Reference
\nPart Number: 145-1863
\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-312b-l-frame-ar-undercarriage-1451863-caterpillar-145-1863-mining\/<\/a><\/p>","protected":false},"excerpt":{"rendered":"

Direct OEM Genuine<\/p>\n

Multi-Model Compatibility<\/p>\n

Heavy-Duty Mining Grade<\/p>\n

Serial Verification Available<\/p>\n

Worldwide Shipping<\/p>","protected":false},"featured_media":56359,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false,"_joinchat":[]},"product_brand":[36],"machine-type":[52],"model_no":[7043,7044],"product_cat":[144],"product_tag":[379361,379351,379354,379364,379366,66930,379365,379358,379362,379350,379353,379359,379356,379349,379363,379352,379360,379355,379357],"class_list":{"0":"post-56459","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_brand-caterpillar","7":"machine-type-excavator","8":"model_no-312b","9":"model_no-312b-l","10":"product_cat-mining","11":"product_tag-145-1863-undercarriage-assembly","12":"product_tag-1451863-frame-replacement","13":"product_tag-2kw-312b-excavator-parts","14":"product_tag-2kw-312b-l-excavator-replacement-parts","15":"product_tag-6sw-312b-excavator-spare-parts-2","16":"product_tag-9fs-312b-l-excavator-components","17":"product_tag-9nw-312b-excavator-parts-catalog","18":"product_tag-9nw-312b-parts","19":"product_tag-cat-145-1863-replacement-parts","20":"product_tag-cat-145-1863-undercarriage","21":"product_tag-cat-2kw-312b-l-excavator","22":"product_tag-cat-6sw-312b-excavator","23":"product_tag-cat-9fs-312b-parts","24":"product_tag-caterpillar-145-1863-frame","25":"product_tag-caterpillar-1451863-frame-assembly","26":"product_tag-caterpillar-1451863-parts","27":"product_tag-caterpillar-6sw-312b-parts","28":"product_tag-caterpillar-9fs-312b-l-excavator","29":"product_tag-caterpillar-9nw-312b-excavator","31":"first","32":"instock","33":"shipping-taxable","34":"product-type-simple"},"acf":[],"_links":{"self":[{"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/product\/56459","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=56459"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/media\/56359"}],"wp:attachment":[{"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/media?parent=56459"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/product_brand?post=56459"},{"taxonomy":"machine-type","embeddable":true,"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/machine-type?post=56459"},{"taxonomy":"model_no","embeddable":true,"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/model_no?post=56459"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/product_cat?post=56459"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/product_tag?post=56459"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}