{"id":35573,"date":"2025-10-22T10:13:10","date_gmt":"2025-10-22T14:13:10","guid":{"rendered":"https:\/\/allparts.expert\/parts\/uncategorized\/caterpillar-173-3390-ring-back-up-1733390\/"},"modified":"2025-10-22T10:13:11","modified_gmt":"2025-10-22T14:13:11","slug":"caterpillar-173-3390-ring-back-up-1733390","status":"publish","type":"product","link":"https:\/\/allparts.expert\/es\/parts\/mining\/caterpillar-173-3390-ring-back-up-1733390\/","title":{"rendered":"CATERPILLAR 173-3390 Ring-Back Up 1733390"},"content":{"rendered":"

Caterpillar 173-3390 Ring-Back Up Seal \u2013 OEM-Grade Durability for Heavy Equipment<\/strong><\/p>\n

The Caterpillar 173-3390 Ring-Back Up is a precision-engineered sealing component designed specifically for a wide range of Caterpillar heavy machinery, including PTE-3512B engine generator sets, CH8-C7.1 industrial engines, and numerous excavator models such as the BKW-325C, MDY-318C, and SAH-320C FM. Manufactured from high-grade elastomeric materials combined with advanced metallurgy, this ring-back up seal ensures optimal sealing performance under extreme load conditions and high-pressure environments. Its robust design maintains integrity against hydraulic fluid leaks, preventing contamination and ensuring the longevity of drivetrain and hydraulic systems.<\/p>\n

Technically, the 173-3390 ring-back up seal features precise dimensional tolerances tailored to fit Caterpillar\u2019s complex sealing grooves, providing a reliable barrier against fluid migration. Its enhanced wear resistance and elasticity accommodate thermal expansion and contraction cycles common in heavy-duty operations. This seal supports operational efficiency by minimizing downtime due to hydraulic failures, improving machine reliability across excavators like the CXY-320D, DHK-320D, and JKF-324D FM models. The OEM-grade quality guarantees compatibility and performance that meets Caterpillar\u2019s stringent engineering standards, making it an essential replacement part for maintaining peak equipment functionality.<\/p>\n

For detailed specifications and to purchase the Caterpillar 173-3390 Ring-Back Up Seal, visit the official product page at \ud83d\udd17 Caterpillar 173-3390 Ring-Back Up Seal | AllParts Expert<\/a>. Ensure your heavy equipment operates at maximum efficiency with this critical sealing component designed for durability and superior performance in demanding industrial applications.<\/p>","protected":false},"excerpt":{"rendered":"

PTE-3512B Engine – Generator Set
\nCH8-C7.1 Engine – Industrial
\nBKW-325C Excavator
\nMDY-318C Excavator
\nSAH-320C FM Excavator
\nCXY-320D Excavator
\nDHK-320D Excavator
\nKCR-321C Excavator
\nMCF-321C Excavator
\nJLS-324D FM LL Excavator
\nJKR-324D FM Excavator
\nJJG-324D L Excavator
\nBMM-325C L Excavator
\nKAY-M325D L MH Excavator
\nKGG-M325D L MH Excavator
\nEDF-M325D MH Excavator
\nTBR-320C FM Excavator
\nPAC-320C Excavator
\nEAX-320D FM Excavator
\nRDZ-320D2 Excavator
\nSTN-320D2 Excavator
\nYBK-320D2 Excavator
\nZBM-320D2 Excavator
\nBZF-320D Excavator
\nJGK-324D FM Excavator
\nDFP-324D L Excavator
\nCJX-324D Excavator
\nC9M-325D FM LL Excavator
\nC7K-325D FM Excavator
\nC8L-325D FM Excavator
\nA3R-325D L Excavator
\nC4H-325D MH Excavator
\nRJK-325D MH Excavator
\nPAS-374D L Excavator
\nPAX-374D L Excavator
\nDFG-320E LN Excavator
\nMEW-320E LRR Excavator
\nPNL-320E LRR Excavator
\nTFX-320E LRR Excavator
\nKLT-320E L Excavator
\nLAK-320E L Excavator
\nNAZ-320E L Excavator
\nTNJ-320E L Excavator
\nWBK-320E L Excavator
\nLHN-320E RR Excavator
\nA<\/p>","protected":false},"featured_media":35409,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false,"_joinchat":[]},"product_brand":[36],"machine-type":[28676],"model_no":[7725,7059,39369,50344,39370,2562,41337,53198,41338,695,43033,41339,43032,43034,44189,77209,71652,41341,103457,102943,43035,41344,41345,698,43043,41346,41347,41334,27650,27655,27654,27649,27656,32217,32216,3210,26557,27652,27658,27657,27651,27661,43044,3222,2595,49480,36375,36374,21328,21327,123,27653,27648],"product_cat":[144],"product_tag":[219936,219941,219939,219927,219931,219925,219937,219943,219933,219923,219935,75667,219929],"class_list":{"0":"post-35573","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_brand-caterpillar","7":"machine-type-engine-generator-set","8":"model_no-318c","9":"model_no-320c","10":"model_no-320c-fm","11":"model_no-320c-l","12":"model_no-320d","13":"model_no-320d-fm","14":"model_no-320d-l","15":"model_no-320d2","16":"model_no-320d2-fm","17":"model_no-320e","18":"model_no-320e-l","19":"model_no-320e-ln","20":"model_no-320e-lrr","21":"model_no-320e-rr","22":"model_no-320f-l","23":"model_no-321c","24":"model_no-321d-lcr","25":"model_no-323d-l","26":"model_no-323d2","27":"model_no-323d2-l","28":"model_no-323e-l","29":"model_no-323e-ln","30":"model_no-323e-sa","31":"model_no-323f","32":"model_no-323f-l","33":"model_no-323f-ln","34":"model_no-323f-oem","35":"model_no-323f-sa","36":"model_no-324d","37":"model_no-324d-fm","38":"model_no-324d-fm-ll","39":"model_no-324d-l","40":"model_no-324d-ln","41":"model_no-324e-l","42":"model_no-324e-ln","43":"model_no-325c","44":"model_no-325c-l","45":"model_no-325d","46":"model_no-325d-fm","47":"model_no-325d-fm-ll","48":"model_no-325d-l","49":"model_no-325d-mh","50":"model_no-325f-lcr","51":"model_no-328d-lcr","52":"model_no-3512b","53":"model_no-374d-l","54":"model_no-374f","55":"model_no-374f-l","56":"model_no-390f","57":"model_no-390f-l","58":"model_no-c7-1","59":"model_no-m325d-l-mh","60":"model_no-m325d-mh","61":"product_cat-mining","62":"product_tag-173-3390-for-cat-320d","63":"product_tag-173-3390-heavy-machinery-part","64":"product_tag-173-3390-seal-for-mining-equipment","65":"product_tag-173-3390-seal-ring","66":"product_tag-1733390-spare-part","67":"product_tag-cat-1733390-ring-back-up","68":"product_tag-cat-320e-ring-back-up-173-3390","69":"product_tag-cat-excavator-parts-173-3390","70":"product_tag-cat-ring-back-up-173-3390","71":"product_tag-caterpillar-173-3390","72":"product_tag-caterpillar-173-3390-for-excavators","73":"product_tag-caterpillar-engine-generator-spare","74":"product_tag-caterpillar-ring-backup-173-3390","76":"first","77":"instock","78":"shipping-taxable","79":"product-type-simple"},"acf":[],"_links":{"self":[{"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/product\/35573","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=35573"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/media\/35409"}],"wp:attachment":[{"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/media?parent=35573"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/product_brand?post=35573"},{"taxonomy":"machine-type","embeddable":true,"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/machine-type?post=35573"},{"taxonomy":"model_no","embeddable":true,"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/model_no?post=35573"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/product_cat?post=35573"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/product_tag?post=35573"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}