{"id":49990,"date":"2026-01-26T04:01:38","date_gmt":"2026-01-26T09:01:38","guid":{"rendered":"https:\/\/allparts.expert\/parts\/uncategorized\/caterpillar-2w-8303-gear-auxiliary-drive-2w8303-2\/"},"modified":"2026-01-26T04:01:41","modified_gmt":"2026-01-26T09:01:41","slug":"caterpillar-2w-8303-gear-auxiliary-drive-2w8303-2","status":"publish","type":"product","link":"https:\/\/allparts.expert\/es\/parts\/mining\/caterpillar-2w-8303-gear-auxiliary-drive-2w8303-2\/","title":{"rendered":"CATERPILLAR 2W-8303 Gear-Auxiliary Drive 2W8303"},"content":{"rendered":"<p><strong>Caterpillar 2W-8303 Gear-Auxiliary Drive \u2013 OEM-Grade Durability and Precision Performance<\/strong><\/p>\n<p>The Caterpillar 2W-8303 Gear-Auxiliary Drive is a critical drivetrain component engineered for optimal performance across a wide range of heavy machinery, including industrial engines (28Z-3516, 97Y-3508, 51Y-3512), excavators (7LL-5230, 4CS-5130B, 5ZL-5130, 4HZ-5230B), off-highway trucks (AX7-789D, DMC-785D), and track-type tractors (4HK-D11N, 74Z-D11N, 7PZ-D11R, 8ZR-D11R, 9TR-D11R, 9XR-D11R, AAF-D11R, 4BB-11SU, 4CB-11U, 4PB-11, 6SB-11). Manufactured to OEM specifications, this gear ensures seamless integration and reliable auxiliary drive function under extreme load conditions. Its precision metallurgy and robust construction deliver superior resistance to wear and fatigue, essential for maintaining drivetrain efficiency and minimizing downtime in demanding mining and construction environments.<\/p>\n<p>Featuring advanced gear tooth profiles and hardened steel alloys, the 2W-8303 Gear-Auxiliary Drive provides exceptional torque transmission and smooth power delivery. The component\u2019s dimensional accuracy and surface finish reduce vibration and noise, enhancing overall machine performance and operator comfort. Designed for compatibility with Caterpillar\u2019s WDS OEM solutions (M3J, M4J), this gear supports extended service intervals and simplifies maintenance procedures. Whether installed in excavators, track-type tractors, or off-highway trucks, the 2W-8303 ensures consistent auxiliary drive operation, contributing to the longevity and productivity of your heavy equipment fleet.<\/p>\n<p>\ud83d\udd17 For detailed specifications and to purchase the Caterpillar 2W-8303 Gear-Auxiliary Drive, visit <a href=\"https:\/\/allparts.expert\/es\/parts\/mining\/caterpillar-2w-8303-gear-auxiliary-drive-2w8303\/\">AllParts Expert\u2019s Caterpillar 2W-8303 Gear-Auxiliary Drive product page<\/a>. This OEM-quality part is your reliable solution for maintaining peak performance in Caterpillar mining and construction machinery.<\/p>","protected":false},"excerpt":{"rendered":"<p>28Z-3516 Engine &#8211; Industrial<br \/>\n97Y-3508 Engine &#8211; Industrial<br \/>\n51Y-3512 Engine &#8211; Industrial<br \/>\n7LL-5230 Excavator<br \/>\n4CS-5130B Excavator<br \/>\n5ZL-5130 Excavator<br \/>\n4HZ-5230B Excavator<br \/>\nM4J-CAT WDS Oem Solutions<br \/>\nM3J- Oem Solutions<br \/>\nAX7-789D Off-highway Truck<br \/>\n4HK-D11N Track-type Tractor<br \/>\n74Z-D11N Track-type Tractor<br \/>\n7PZ-D11R Track-type Tractor<br \/>\n8ZR-D11R Track-type Tractor<br \/>\n9TR-D11R Track-type Tractor<br \/>\n9XR-D11R Track-type Tractor<br \/>\nAAF-D11R Track-type Tractor<br \/>\n4BB-11SU Track-type Tractor<br \/>\n4CB-11U Track-type Tractor<br \/>\n4PB-11 Track-type Tractor<br \/>\n6SB-11 Track-type Tractor<br \/>\nM3J-CAT WDS Oem Solutions<br \/>\nDMC-785D Off-highway Truck<\/p>","protected":false},"featured_media":47782,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false,"_joinchat":[]},"product_brand":[36],"machine-type":[77459],"model_no":[16824,16822,16823,2594,3378,2597,7208,4984,4437,5801,5213,1380,33395,8524,1824],"product_cat":[144],"product_tag":[333315,333309,317838,50826,52455,47685,57680,50850,333322,150211,49062,46347,47668,45937,47411,48828,48053,50741,51001,317841,317834,333334,311227,333320,317860,333318,333312,317857,317855],"class_list":{"0":"post-49990","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_brand-caterpillar","7":"machine-type-engine-industrial","8":"model_no-16824","9":"model_no-11su","10":"model_no-11u","11":"model_no-2594","12":"model_no-3378","13":"model_no-2597","14":"model_no-7208","15":"model_no-5130b","16":"model_no-4437","17":"model_no-5230b","18":"model_no-785d","19":"model_no-789d","20":"model_no-cat-wds","21":"model_no-d11n","22":"model_no-d11r","23":"product_cat-mining","24":"product_tag-28z-3516-engine-industrial","25":"product_tag-2w-8303-gear-auxiliary-drive-2","26":"product_tag-2w-8303-heavy-machinery-gear","27":"product_tag-4bb-11su-track-type-tractor-parts","28":"product_tag-4cs-5130b-excavator-parts","29":"product_tag-4hk-d11n-track-type-tractor-parts","30":"product_tag-4hz-5230b-excavator-parts","31":"product_tag-4pb-11-track-type-tractor-parts","32":"product_tag-51y-3512-engine-industrial-parts","33":"product_tag-5zl-5130-excavator-replacement","34":"product_tag-74z-d11n-track-type-tractor-components","35":"product_tag-7ll-5230-excavator-parts","36":"product_tag-7pz-d11r-track-type-tractor-parts","37":"product_tag-8zr-d11r-track-type-tractor-replacement-parts","38":"product_tag-97y-3508-industrial-engine","39":"product_tag-9tr-d11r-track-type-tractor-parts","40":"product_tag-9xr-d11r-track-type-tractor-components","41":"product_tag-aaf-d11r-track-type-tractor-parts","42":"product_tag-ax7-789d-off-highway-truck-parts","43":"product_tag-cat-28z-3516-engine-parts","44":"product_tag-cat-2w-8303-parts","45":"product_tag-cat-4cb-11u-track-type-tractor","46":"product_tag-cat-7ll-5230-excavator-components","47":"product_tag-cat-97y-3508-engine-components","48":"product_tag-cat-ax7-789d-truck-components","49":"product_tag-caterpillar-28z-3516-industrial-engine","50":"product_tag-caterpillar-2w-8303-gear-assembly","51":"product_tag-m3j-oem-solutions-cat","52":"product_tag-m4j-cat-wds-oem-solutions","54":"first","55":"instock","56":"shipping-taxable","57":"product-type-simple"},"acf":[],"_links":{"self":[{"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/product\/49990","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=49990"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/media\/47782"}],"wp:attachment":[{"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/media?parent=49990"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/product_brand?post=49990"},{"taxonomy":"machine-type","embeddable":true,"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/machine-type?post=49990"},{"taxonomy":"model_no","embeddable":true,"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/model_no?post=49990"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/product_cat?post=49990"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/product_tag?post=49990"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}