{"id":59148,"date":"2026-05-01T00:06:36","date_gmt":"2026-05-01T04:06:36","guid":{"rendered":"https:\/\/allparts.expert\/parts\/uncategorized\/cat-302-7cr-pump-gp-piston-5667021-caterpillar-566-7021-mining\/"},"modified":"2026-05-01T00:06:42","modified_gmt":"2026-05-01T04:06:42","slug":"cat-302-7cr-pump-gp-piston-5667021-caterpillar-566-7021-mining","status":"publish","type":"product","link":"https:\/\/allparts.expert\/es\/parts\/mining\/cat-302-7cr-pump-gp-piston-5667021-caterpillar-566-7021-mining\/","title":{"rendered":"CAT 302.7CR PUMP GP-PISTON 5667021 | Caterpillar 566-7021 | Mining"},"content":{"rendered":"<p>Title<br \/>\nCaterpillar 566-7021 Pump Gp-Piston | Fits 302.7CR, 303.5CR, 303CR, 304CR Excavators<\/p>\n<p>\u2e3b<\/p>\n<p>Opening Paragraph<br \/>\nThe Caterpillar 566-7021 Pump Gp-Piston is a precision-engineered OEM replacement component designed for 302.7CR, 303.5CR, 303CR, and 304CR excavators operating in Mini Hydraulic Excavator and heavy construction environments. Built for structural durability and exact fitment, this pump gp-piston supports critical assemblies to ensure reliable performance and reduced downtime.<\/p>\n<p>\u2e3b<\/p>\n<p>Common Applications<br \/>\nThis Caterpillar 566-7021 pump gp-piston is essential for:<br \/>\nProfessional maintenance of CAT excavators.<br \/>\nDirect replacement of worn structural and pivot components.<br \/>\nHeavy-duty Mini Hydraulic Excavator and earthmoving operations.<br \/>\nMaintaining proper alignment in equipment linkage systems.<\/p>\n<p>\u2e3b<\/p>\n<p>Fits The Following Models<br \/>\nCAT 302.7CR Excavator<br \/>\nCAT 303.5CR Excavator<br \/>\nCAT 303CR Excavator<br \/>\nCAT 304CR Excavator<br \/>\n(Verify fitment with your specific serial number.)<\/p>\n<p>\u2e3b<\/p>\n<p>OEM Reference<br \/>\nPart Number: 566-7021<br \/>\nBrand: Caterpillar<br \/>\nCategory: Mini Hydraulic Excavator<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-302-7cr-pump-gp-piston-5667021-caterpillar-566-7021-mining\/\">https:\/\/allparts.expert\/parts\/mining\/cat-302-7cr-pump-gp-piston-5667021-caterpillar-566-7021-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":59147,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false,"_joinchat":[]},"product_brand":[36],"machine-type":[22246],"model_no":[56173,56177,56180,56182],"product_cat":[144],"product_tag":[396177,396178,396179,396173,396176,396185,396181,396182,396186,396172,396183,396175,73599,396174,396171,396180,396184],"class_list":{"0":"post-59148","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_brand-caterpillar","7":"machine-type-mini-hydraulic-excavator","8":"model_no-302-7cr","9":"model_no-303-5cr","10":"model_no-303cr","11":"model_no-304cr","12":"product_cat-mining","13":"product_tag-303-5cr","14":"product_tag-303cr","15":"product_tag-304cr","16":"product_tag-566-7021-hydraulic-pump","17":"product_tag-566-7021-pump-for-302-7cr","18":"product_tag-566-7021-pump-for-caterpillar-mini-excavators","19":"product_tag-566-7021-pump-for-excavators","20":"product_tag-buy-566-7021-pump-online","21":"product_tag-cat-566-7021-hydraulic-components","22":"product_tag-cat-566-7021-parts","23":"product_tag-cat-566-7021-parts-supplier","24":"product_tag-cat-566-7021-pump-gp-piston","25":"product_tag-cat-mini-hydraulic-excavator-parts","26":"product_tag-caterpillar-566-7021-mini-excavator","27":"product_tag-caterpillar-566-7021-pump","28":"product_tag-caterpillar-566-7021-replacement-pump","29":"product_tag-caterpillar-excavator-parts-566-7021","31":"first","32":"instock","33":"shipping-taxable","34":"product-type-simple"},"acf":[],"_links":{"self":[{"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/product\/59148","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=59148"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/media\/59147"}],"wp:attachment":[{"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/media?parent=59148"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/product_brand?post=59148"},{"taxonomy":"machine-type","embeddable":true,"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/machine-type?post=59148"},{"taxonomy":"model_no","embeddable":true,"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/model_no?post=59148"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/product_cat?post=59148"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/product_tag?post=59148"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}