{"id":18250,"date":"2025-08-12T16:07:30","date_gmt":"2025-08-12T20:07:30","guid":{"rendered":"https:\/\/allparts.expert\/parts\/uncategorized\/caterpillar-087-5051-ring-back-up-0875051\/"},"modified":"2025-08-12T16:07:33","modified_gmt":"2025-08-12T20:07:33","slug":"caterpillar-087-5051-ring-back-up-0875051","status":"publish","type":"product","link":"https:\/\/allparts.expert\/es\/parts\/mining\/caterpillar-087-5051-ring-back-up-0875051\/","title":{"rendered":"CATERPILLAR 087-5051 Ring-Back Up 0875051"},"content":{"rendered":"

CATERPILLAR 087-5051 Ring-Back Up Seal \u2013 OEM-Grade Durability for Excavator Hydraulic Systems<\/strong><\/p>\n

The Caterpillar 087-5051 Ring-Back Up seal is a critical component designed to ensure optimal sealing performance in a wide range of Caterpillar excavator models, including the 2PM-307-A, 9KK-320 L, 6KF-E200B, and many more. Manufactured to OEM specifications, this ring-back up seal features precision-engineered dimensions tailored to fit hydraulic cylinders and actuators, preventing extrusion and enhancing the longevity of the sealing system under high-pressure load conditions. Crafted from advanced elastomeric materials combined with a robust metallic backing, the seal delivers exceptional resistance to wear, heat, and hydraulic fluid degradation, ensuring reliable operation in demanding construction and earthmoving environments.<\/p>\n

Technically, the 087-5051 ring-back up seal incorporates a dual-function design that supports both static and dynamic sealing applications within the drivetrain and hydraulic assemblies of Caterpillar excavators. Its metallurgy and elastomer blend are optimized to withstand extreme temperature fluctuations and abrasive contaminants, reducing downtime and maintenance costs. This seal maintains hydraulic integrity by preventing fluid leakage and contamination ingress, which are critical for maintaining system pressure and performance. Compatible with over 50 Caterpillar excavator models, this part is indispensable for technicians seeking OEM-grade replacement parts that guarantee fit, form, and function.<\/p>\n

\ud83d\udd17 For detailed specifications and to purchase the Caterpillar 087-5051 Ring-Back Up seal, visit Caterpillar 087-5051 Ring-Back Up Seal at AllParts Expert<\/a>. <\/p>\n

Optimize your excavator\u2019s hydraulic system reliability with this durable, high-performance ring-back up seal designed specifically for Caterpillar heavy equipment.<\/p>","protected":false},"excerpt":{"rendered":"

2PM-307-A Excavator
\n2WM-307 Excavator
\n9LJ-311-A Excavator
\n6GK-312-A Excavator
\n3XK-320 L Excavator
\n9KK-320 L Excavator
\n3XK-320-A L Excavator
\n9WG-320-A N Excavator
\n2DL-320-A Excavator
\n4ZJ-320-A Excavator
\n9WG-320N Excavator
\n9DK-350 L Excavator
\n9DK-350-A L Excavator
\n7RK-350-A Excavator
\n6RL-375-A Excavator
\n8XG-375-A Excavator
\n5GK-E110B Excavator
\n8MF-E110B Excavator
\n4XK-E120B Excavator
\n6JF-E120B Excavator
\n1NF-E140 Excavator
\n6KF-E200B Excavator
\n8SF-E240B Excavator
\n1WJ-E300B Excavator
\n3HG-E450 Excavator
\n5TG-E70B Excavator
\n6AK-E70B Excavator
\n7DF-EL200B Excavator
\n5WG-EL240B Excavator
\n3FJ-EL300B Excavator
\n6BL-312-A Excavator
\n6YM-315-A L Excavator
\n3ZM-315-A Excavator
\n4YM-315-A Excavator
\n9SR-317 N Excavator
\n9SR-317-A N Excavator
\n4MM-317-A Excavator
\n1KL-320 L Excavator
\n1TL-320 L Excavator
\n1KL-320-A L Excavator
\n1TL-320-A L Excavator
\n1XM-320-A N Excavator
\n6KM-320-A S Excavator
\n7WK-320-A Excavator
\n8LK-320-A Excavator
\n4RM-322 LN Excavator
\n8CL-322 L Excavator
\n8ML-322 L Excavator
\n9<\/p>","protected":false},"featured_media":18026,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false,"_joinchat":[]},"product_brand":[36],"machine-type":[52],"model_no":[7084,7032,7040,7042,7045,7046,7048,7049,7050,7053,7054,7055,7056,7199,7200,7060,7201,74369,7061,7202,7203,7204,7066,7067,7068,7069,7070,7071,7073,7205,2055,7074,7206,40201,40202,7184,7186,7185,7213,7208,4984,4437,5801,7075,7076,100622,7077,42295,7078,7079,42296,42357,100887,46658,7080,42358,7081,7082,42360,42359],"product_cat":[144],"product_tag":[103161,103175,103179,96506,103174,103180,103183,103164,103170,103079,103181,103025,103177,103171,103169,103165,103184,103166,103160,103178,103168,103182,103176,103173,103163,103159,103167,103162,103172],"class_list":{"0":"post-18250","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_brand-caterpillar","7":"machine-type-excavator","8":"model_no-7084","9":"model_no-307-a","10":"model_no-311-a","11":"model_no-312-a","12":"model_no-315-a","13":"model_no-315-a-l","14":"model_no-317-n","15":"model_no-317-a","16":"model_no-317-a-n","17":"model_no-320-l","18":"model_no-320-a","19":"model_no-320-a-l","20":"model_no-320-a-n","21":"model_no-320-a-s","22":"model_no-320n","23":"model_no-322-l","24":"model_no-322-ln","25":"model_no-322-a","26":"model_no-322-a-l","27":"model_no-322-a-ln","28":"model_no-322-a-n","29":"model_no-322n","30":"model_no-325-l","31":"model_no-325-ln","32":"model_no-325-a","33":"model_no-325-a-fm-l","34":"model_no-325-a-l","35":"model_no-325-a-ln","36":"model_no-330-l","37":"model_no-330-ln","38":"model_no-330-a","39":"model_no-330-a-l","40":"model_no-330-a-ln","41":"model_no-350-l","42":"model_no-350-a","43":"model_no-350-a-l","44":"model_no-375-a","45":"model_no-375-a-l","46":"model_no-7213","47":"model_no-7208","48":"model_no-5130b","49":"model_no-4437","50":"model_no-5230b","51":"model_no-e110b","52":"model_no-e120b","53":"model_no-e140","54":"model_no-e200b","55":"model_no-e240","56":"model_no-e240b","57":"model_no-e240c","58":"model_no-e300","59":"model_no-e300b","60":"model_no-e450","61":"model_no-e70b","62":"model_no-el200b","63":"model_no-el240","64":"model_no-el240b","65":"model_no-el240c","66":"model_no-el300","67":"model_no-el300b","68":"product_cat-mining","69":"product_tag-087-5051-excavator-spare-part","70":"product_tag-1nf-e140-excavator-spare","71":"product_tag-3hg-e450-cat-excavator-component","72":"product_tag-3xk-320-l-excavator-seal","73":"product_tag-4xk-e120b-cat-component","74":"product_tag-5tg-e70b-cat-ring-back-up","75":"product_tag-6bl-312-a-cat-excavator-ring","76":"product_tag-6gk-312-a-cat-excavator-component","77":"product_tag-6rl-375-a-cat-part","78":"product_tag-6ym-315-a-l-excavator-part","79":"product_tag-7df-el200b-excavator-seal","80":"product_tag-7rk-350-a-excavator-component","81":"product_tag-8sf-e240b-excavator-ring","82":"product_tag-8xg-375-a-excavator-ring","83":"product_tag-9dk-350-l-cat-spare-ring","84":"product_tag-9kk-320-l-cat-excavator-part","85":"product_tag-9sr-2","86":"product_tag-9wg-320-a-n-excavator-ring","87":"product_tag-cat-0875051-seal-ring","88":"product_tag-cat-1wj-e300b-spare-part","89":"product_tag-cat-4zj-320-a-excavator-part","90":"product_tag-cat-5wg-el240b-spare-part","91":"product_tag-cat-6kf-e200b-part","92":"product_tag-cat-8mf-e110b-excavator-seal","93":"product_tag-cat-9lj-311-a-replacement-ring","94":"product_tag-caterpillar-087-5051-ring-back-up","95":"product_tag-caterpillar-2dl-320-a-seal","96":"product_tag-caterpillar-2pm-307-a-excavator-part","97":"product_tag-caterpillar-5gk-e110b-spare-part","99":"first","100":"instock","101":"shipping-taxable","102":"product-type-simple"},"acf":[],"_links":{"self":[{"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/product\/18250","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=18250"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/media\/18026"}],"wp:attachment":[{"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/media?parent=18250"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/product_brand?post=18250"},{"taxonomy":"machine-type","embeddable":true,"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/machine-type?post=18250"},{"taxonomy":"model_no","embeddable":true,"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/model_no?post=18250"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/product_cat?post=18250"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/product_tag?post=18250"}],"curies":[{"name":"wp","h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