{"id":30028,"date":"2025-10-02T10:08:02","date_gmt":"2025-10-02T14:08:02","guid":{"rendered":"https:\/\/allparts.expert\/parts\/uncategorized\/caterpillar-118-3748-pinion-1183748\/"},"modified":"2025-10-02T10:08:05","modified_gmt":"2025-10-02T14:08:05","slug":"caterpillar-118-3748-pinion-1183748","status":"publish","type":"product","link":"https:\/\/allparts.expert\/es\/parts\/mining\/caterpillar-118-3748-pinion-1183748\/","title":{"rendered":"CATERPILLAR 118-3748 Pinion 1183748"},"content":{"rendered":"

Caterpillar 118-3748 Pinion \u2013 OEM-Grade Precision for Heavy Equipment Drivetrains<\/strong><\/p>\n

The Caterpillar 118-3748 Pinion is a critical drivetrain component engineered to meet the rigorous demands of various Caterpillar excavators, track-type loaders, and tractors. Designed with precision metallurgy and manufactured to OEM specifications, this pinion ensures optimal gear meshing and torque transmission under extreme load conditions. Compatible with models such as the 315B, 315C, 317B, 318B excavators, and D3C to D5C series track-type tractors, this pinion features robust construction with high-grade alloy steel, heat-treated for enhanced wear resistance and durability. Its exact dimensions and tooth profile guarantee seamless integration, minimizing drivetrain backlash and maximizing operational efficiency.<\/p>\n

Built to withstand harsh working environments, the 118-3748 pinion delivers superior performance by maintaining consistent gear engagement, reducing vibration, and extending the service life of your heavy machinery. The precision engineering behind this component supports smooth power transfer and reduces mechanical stress on adjacent parts, thereby lowering maintenance costs and downtime. Whether used in excavation, earthmoving, or heavy-duty loading applications, this pinion is an essential replacement part that restores your equipment to factory-grade performance standards.<\/p>\n

For reliable, high-performance drivetrain solutions, explore the full specifications and availability of the Caterpillar 118-3748 Pinion at \ud83d\udd17 Caterpillar 118-3748 Pinion on AllParts.Expert<\/a>. Ensure your heavy equipment operates at peak efficiency with this durable, OEM-quality pinion designed for demanding Caterpillar machinery.<\/p>","protected":false},"excerpt":{"rendered":"

MHK-3046 Engine – Machine
\n3AW-315B L Excavator
\n1SW-315B Excavator
\n6YM-315-A L Excavator
\n4YM-315-A Excavator
\n7RZ-315B FM L Excavator
\n7RZ-315B L Excavator
\nAKE-315C Excavator
\nCFB-315C Excavator
\nCFT-315C Excavator
\nCJC-315C Excavator
\n6DZ-317B LN Excavator
\n9WW-317B L Excavator
\n7KZ-318B N Excavator
\nAEJ-318B N Excavator
\n3LR-318B Excavator
\nADC-318B Excavator
\n4MS-933C Track-type Loader
\n5JS-933C Track-type Loader
\n8FL-933 Track-type Loader
\n9EL-933 Track-type Loader
\n6DS-939C Track-type Loader
\n9DL-D5C III Track-type Tractor
\n4KS-D3C III Track-type Tractor
\n4TS-D3C III Track-type Tractor
\n5GS-D3C III Track-type Tractor
\n6SL-D3C III Track-type Tractor
\n7XL-D3C III Track-type Tractor
\n9TS-D3C III Track-type Tractor
\n1FW-D4C III Track-type Tractor
\n4LS-D4C III Track-type Tractor
\n6BS-D4C III Track-type Tractor
\n6YL-D4C III Track-type Tractor
\n7SL-D4C III Track-type Tractor
\n8CS-D4C III Track-type Tractor
\n5HS-D5C III Track-type Tractor
\n6CS-D5C III Track-type Tractor
\n6ZL-D5C III Track-type Tractor
\n7PS-D<\/p>","protected":false},"featured_media":29946,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false,"_joinchat":[]},"product_brand":[36],"machine-type":[32374],"model_no":[94153,7045,7046,51514,51513,7047,50343,7051,7052,7209,43556,41507,40255,42814,41586,41141,41587,41142,41588,41143],"product_cat":[144],"product_tag":[180281,180284,180283,108519,180290,180285,172570,180288,180286,180282,180280,180279,180287,180289],"class_list":{"0":"post-30028","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_brand-caterpillar","7":"machine-type-engine-machine","8":"model_no-94153","9":"model_no-315-a","10":"model_no-315-a-l","11":"model_no-315b","12":"model_no-315b-fm-l","13":"model_no-315b-l","14":"model_no-315c","15":"model_no-317b-l","16":"model_no-317b-ln","17":"model_no-318b","18":"model_no-318b-n","19":"model_no-41507","20":"model_no-933c","21":"model_no-939c","22":"model_no-d3c-iii","23":"model_no-d3g","24":"model_no-d4c-iii","25":"model_no-d4g","26":"model_no-d5c-iii","27":"model_no-d5g","28":"product_cat-mining","29":"product_tag-118-3748-pinion-gear","30":"product_tag-1sw-315b-excavator-components","31":"product_tag-3aw-315b-excavator-parts","32":"product_tag-4ms-933c-track-type-loader-parts","33":"product_tag-5gs-d3c-iii-track-type-tractor-components","34":"product_tag-6ym-315-a-l-excavator-pinion","35":"product_tag-7xl-d3c-iii-track-type-tractor-parts","36":"product_tag-8cs-d4c-iii-track-type-tractor-pinion","37":"product_tag-9dl-d5c-iii-track-type-tractor-pinion","38":"product_tag-cat-1183748-spare-part","39":"product_tag-cat-pinion-1183748","40":"product_tag-caterpillar-118-3748","41":"product_tag-caterpillar-excavator-pinion-118-3748","42":"product_tag-construction-machinery-pinion-1183748","44":"first","45":"instock","46":"shipping-taxable","47":"product-type-simple"},"acf":[],"_links":{"self":[{"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/product\/30028","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=30028"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/media\/29946"}],"wp:attachment":[{"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/media?parent=30028"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/product_brand?post=30028"},{"taxonomy":"machine-type","embeddable":true,"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/machine-type?post=30028"},{"taxonomy":"model_no","embeddable":true,"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/model_no?post=30028"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/product_cat?post=30028"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/product_tag?post=30028"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}