{"id":48168,"date":"2026-01-16T03:02:42","date_gmt":"2026-01-16T08:02:42","guid":{"rendered":"https:\/\/allparts.expert\/parts\/uncategorized\/caterpillar-1w-6445-gear-as-fuel-pump-idler-1w6445\/"},"modified":"2026-01-16T03:02:45","modified_gmt":"2026-01-16T08:02:45","slug":"caterpillar-1w-6445-gear-as-fuel-pump-idler-1w6445","status":"publish","type":"product","link":"https:\/\/allparts.expert\/es\/parts\/mining\/caterpillar-1w-6445-gear-as-fuel-pump-idler-1w6445\/","title":{"rendered":"CATERPILLAR 1W-6445 Gear AS-Fuel Pump Idler 1W6445"},"content":{"rendered":"

Caterpillar 1W-6445 Gear AS-Fuel Pump Idler \u2013 OEM-Grade Durability for Heavy Equipment<\/strong><\/p>\n

The Caterpillar 1W-6445 Gear AS-Fuel Pump Idler is a precision-engineered component designed to optimize fuel pump performance across a wide range of Caterpillar heavy machinery, including articulated dump trucks (models 1HK-D25D, 4SD-D300B, 5MG-D300D, and more), Challengers (2ZJ-65C, 7YC-65B), earthmoving compactors (91P-815, 57U-816), and engine-generator sets (83Z-3304B, 2AJ-3306B). Manufactured from high-grade alloy steel with exacting metallurgy standards, this idler gear features a robust diameter and tooth profile engineered to withstand extreme load conditions and continuous drivetrain stress. Its precise dimensions ensure seamless integration with fuel pump assemblies, maintaining optimal fuel delivery and engine efficiency.<\/p>\n

Technically, the 1W-6445 Gear AS-Fuel Pump Idler offers superior wear resistance and dimensional stability, critical for maintaining consistent fuel pump timing and pressure. The gear\u2019s hardened surface treatment enhances its lifespan under harsh operating environments typical in mining, construction, and earthmoving applications. By minimizing gear backlash and slippage, it supports reliable drivetrain synchronization, reducing downtime and maintenance costs. This OEM-grade part guarantees compatibility and performance parity with original Caterpillar specifications, making it an essential replacement for maintaining peak machine productivity.<\/p>\n

For professional-grade replacement parts that ensure durability and performance, explore the full specifications and availability of the Caterpillar 1W-6445 Gear AS-Fuel Pump Idler here: \ud83d\udd17 Caterpillar 1W-6445 Gear AS-Fuel Pump Idler at AllParts.Expert<\/a>. Optimize your heavy equipment\u2019s fuel system with this high-quality idler gear designed for demanding operational conditions.<\/p>","protected":false},"excerpt":{"rendered":"

1HK-D25D Articulated Dump Truck
\n4SD-D300B Articulated Dump Truck
\n5MG-D300D Articulated Dump Truck
\n3AJ-D30D Articulated Dump Truck
\n9RF-D350D Articulated Dump Truck
\n5WD-D250B Articulated Dump Truck
\n9YC-D25C Articulated Dump Truck
\n7ZC-D30C Articulated Dump Truck
\n8XC-D350C Articulated Dump Truck
\n2GD-D35C Articulated Dump Truck
\n2ZJ-65C Challenger
\n2ZJ-65D Challenger
\n7YC-65B Challenger
\n7YC-65 Challenger
\n2YL-70C Challenger
\n91P-815 Earthmoving Compactor
\n57U-816 Earthmoving Compactor
\n15R-815 Earthmoving Compactor
\n41S-816 Earthmoving Compactor
\n15Z-816B Earthmoving Compactor
\n17Z-815B Earthmoving Compactor
\n83Z-3304B Engine – Generator Set
\n83Z-3304 Engine – Generator Set
\n2AJ-3306B Engine – Generator Set
\n85Z-3306 Engine – Generator Set
\n1YF-3304B Engine – Generator Set
\n2KK-3304B Engine – Generator Set
\n3TC-3304B Engine – Generator Set
\n9HK-3304B Engine – Generator Set
\n3TC-3304 Engine – Generator Set
\n4PC-3304 Engine – Generator Set
\n6YB-3304 Engine – Generator Set
\n1DG-3306B Engine – Generator Set<\/p>","protected":false},"featured_media":47787,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false,"_joinchat":[]},"product_brand":[36],"machine-type":[21022],"model_no":[731,37530,2484,6731,2057,2058,2486,2483,732,38871,2059,2060,6732,2062,37514,39033,7182,7187,7188,7190,7189,7193,7191,7192,7195,7194,6726,2052,2053,2054,7073,7205,2055,7074,7206,37496,37495,2050,2051,40201,40202,7184,38653,38652,38104,38105,38106,688,38845,690,38846,22355,22356,22357,22358,7165,22359,22360,37502,37503,22361,22362,22363,42295,42296,42357,42358,42360,42359,37582,37507,37581],"product_cat":[144],"product_tag":[316163,316181,316153,316169,316157,316187,316175,316154,316183,316189,316159,316177,316165,316171,316173,316161,316179,316167,316155,316185],"class_list":{"0":"post-48168","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_brand-caterpillar","7":"machine-type-articulated-dump-truck","8":"model_no-731","9":"model_no-120b","10":"model_no-120g","11":"model_no-12f","12":"model_no-12g","13":"model_no-12h","14":"model_no-12h-na","15":"model_no-130g","16":"model_no-732","17":"model_no-140b","18":"model_no-140g","19":"model_no-140h","20":"model_no-14e","21":"model_no-14g","22":"model_no-1673c","23":"model_no-39033","24":"model_no-215b","25":"model_no-215c","26":"model_no-215d","27":"model_no-7190","28":"model_no-219d","29":"model_no-7193","30":"model_no-225b","31":"model_no-225d","32":"model_no-7195","33":"model_no-229d","34":"model_no-6726","35":"model_no-235b","36":"model_no-235c","37":"model_no-235d","38":"model_no-330-l","39":"model_no-330-ln","40":"model_no-330-a","41":"model_no-330-a-l","42":"model_no-330-a-ln","43":"model_no-37496","44":"model_no-3304b","45":"model_no-2050","46":"model_no-3306b","47":"model_no-350-l","48":"model_no-350-a","49":"model_no-350-a-l","50":"model_no-38653","51":"model_no-65b","52":"model_no-65c","53":"model_no-65d","54":"model_no-70c","55":"model_no-688","56":"model_no-815b","57":"model_no-690","58":"model_no-816b","59":"model_no-d250b","60":"model_no-d25c","61":"model_no-d25d","62":"model_no-d300b","63":"model_no-d300d","64":"model_no-d30c","65":"model_no-d30d","66":"model_no-d330c","67":"model_no-d333c","68":"model_no-d350c","69":"model_no-d350d","70":"model_no-d35c","71":"model_no-e240","72":"model_no-e300","73":"model_no-e300b","74":"model_no-el240","75":"model_no-el300","76":"model_no-el300b","77":"model_no-g3304","78":"model_no-g3306","79":"model_no-g333c","80":"product_cat-mining","81":"product_tag-1w-6445-fuel-pump-gear-for-articulated-dump-truck","82":"product_tag-1w-6445-fuel-pump-idler-for-challenger-machinery","83":"product_tag-1w-6445-fuel-pump-idler-gear","84":"product_tag-1w-6445-gear-for-earthmoving-compactor","85":"product_tag-1w-6445-gear-for-fuel-pump","86":"product_tag-1w-6445-idler-gear-compatible-with-cat-3304-engine","87":"product_tag-1w-6445-idler-gear-for-cat-engines","88":"product_tag-cat-1w-6445-fuel-pump-gear","89":"product_tag-cat-1w-6445-fuel-pump-gear-for-heavy-equipment","90":"product_tag-cat-1w-6445-fuel-pump-gear-replacement-for-earthmoving-machines","91":"product_tag-cat-1w-6445-fuel-pump-spare-part","92":"product_tag-cat-1w-6445-gear-for-generator-set","93":"product_tag-cat-1w-6445-idler-gear-for-engine","94":"product_tag-cat-1w-6445-replacement-gear","95":"product_tag-caterpillar-1w-6445-fuel-pump-gear-for-3306-engine","96":"product_tag-caterpillar-1w-6445-fuel-pump-idler","97":"product_tag-caterpillar-1w-6445-gear-for-mining-equipment","98":"product_tag-caterpillar-1w-6445-heavy-machinery-gear","99":"product_tag-caterpillar-1w-6445-idler-gear","100":"product_tag-caterpillar-1w-6445-spare-parts-for-articulated-dump-trucks","102":"first","103":"instock","104":"shipping-taxable","105":"product-type-simple"},"acf":[],"_links":{"self":[{"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/product\/48168","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=48168"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/media\/47787"}],"wp:attachment":[{"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/media?parent=48168"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/product_brand?post=48168"},{"taxonomy":"machine-type","embeddable":true,"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/machine-type?post=48168"},{"taxonomy":"model_no","embeddable":true,"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/model_no?post=48168"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/allparts.expert\/es\/wp-json\/wp\/v2\/product_cat?post=48168"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/allp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