{"id":14461,"date":"2023-07-27T11:14:00","date_gmt":"2023-07-27T11:14:00","guid":{"rendered":"https:\/\/gardentoolspares.com\/?post_type=product&#038;p=14461"},"modified":"2026-05-28T20:34:24","modified_gmt":"2026-05-28T20:34:24","slug":"2500-25cc-chainsaw-wide-oil-drive-pump-worm-gear","status":"publish","type":"product","link":"https:\/\/gardengeniusparts.com\/gtstest\/product\/2500-25cc-chainsaw-wide-oil-drive-pump-worm-gear\/","title":{"rendered":"2500 25CC Chainsaw Wide Oil Drive Pump Worm Gear"},"content":{"rendered":"<p class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"><strong>Wide oil drive pump worm gear<\/strong> fits <strong>2500<\/strong> and <strong>3800<\/strong> Chinese chainsaws with <strong>25cc<\/strong> and <strong>38cc<\/strong> engines, including <strong>Timberpro<\/strong>, <strong>Komatsu Zenoah<\/strong>, <strong>Lawnflite<\/strong>, <strong>Carlton<\/strong>, <strong>Painier<\/strong>, <strong>B&amp;Q<\/strong>, <strong>Draper<\/strong>, <strong>Sanli<\/strong>, <strong>Sovereign<\/strong> and <strong>Powerplus<\/strong>. The <strong>wide worm gear<\/strong> is a wider-profile variant of the standard <strong>worm gear<\/strong> used on the same engine platform the two differ in tooth width and overall body thickness, so confirm against your old part before ordering. Like the standard gear, it sits on the <strong>crankshaft<\/strong> and drives the <strong>oil pump<\/strong> rotor to maintain continuous <strong>bar and chain oil<\/strong> flow to the <strong>guide bar<\/strong>. A stripped or worn <strong>wide worm gear<\/strong> disconnects the <strong>oil pump<\/strong> entirely, causing <strong>chain lubrication<\/strong> failure while the engine continues to run normally making the fault easy to miss until visible <strong>guide bar<\/strong> or <strong>chain<\/strong> wear appears.<\/p>\n<p class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"><strong>Fits the following models:<\/strong><\/p>\n<ul class=\"[li_&amp;]:mb-0 [li_&amp;]:mt-1 [li_&amp;]:gap-1 [&amp;:not(:last-child)_ul]:pb-1 [&amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\">\n<li class=\"font-claude-response-body whitespace-normal break-words pl-2\">2500, 3800<\/li>\n<li class=\"font-claude-response-body whitespace-normal break-words pl-2\">Timberpro<\/li>\n<li class=\"font-claude-response-body whitespace-normal break-words pl-2\">Komatsu Zenoah<\/li>\n<li class=\"font-claude-response-body whitespace-normal break-words pl-2\">Lawnflite<\/li>\n<li class=\"font-claude-response-body whitespace-normal break-words pl-2\">Carlton<\/li>\n<li class=\"font-claude-response-body whitespace-normal break-words pl-2\">Painier<\/li>\n<li class=\"font-claude-response-body whitespace-normal break-words pl-2\">B&amp;Q<\/li>\n<li class=\"font-claude-response-body whitespace-normal break-words pl-2\">Draper<\/li>\n<li class=\"font-claude-response-body whitespace-normal break-words pl-2\">Sanli<\/li>\n<li class=\"font-claude-response-body whitespace-normal break-words pl-2\">Sovereign<\/li>\n<li class=\"font-claude-response-body whitespace-normal break-words pl-2\">Powerplus<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p><strong>Wide oil drive pump worm gear<\/strong> fits <strong>2500<\/strong> and <strong>3800<\/strong> Chinese chainsaws with <strong>25cc<\/strong> and <strong>38cc<\/strong> engines, including <strong>Timberpro<\/strong>, <strong>Komatsu Zenoah<\/strong>, <strong>Draper<\/strong>, <strong>Sanli<\/strong>, <strong>Sovereign<\/strong> and <strong>Powerplus<\/strong>. A wider-profile variant of the standard <strong>worm gear<\/strong> \u2014 confirm against your old part before ordering. Replaces a stripped gear that causes <strong>oil pump<\/strong> failure and <strong>chain lubrication<\/strong> loss.<\/p>\n","protected":false},"featured_media":19006,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_cat":[55,72,73,86],"product_tag":[354,355,500,1461,361,362,4547,358,224,258,1830,416,420,4549,359,394,356,1831,417,329,1829,365,357,4550,419],"class_list":["post-14461","product","type-product","status-publish","has-post-thumbnail","hentry","product_cat-chainsaw-parts","product_cat-chinese-25cc","product_cat-chinese-38cc","product_cat-oil-pumps","product_tag-354","product_tag-25cc","product_tag-26cc","product_tag-37cc","product_tag-361","product_tag-38cc","product_tag-bq","product_tag-carlton","product_tag-chainsaw","product_tag-chinese","product_tag-draper","product_tag-drive","product_tag-gear","product_tag-komatsu-zenoah","product_tag-lawnflite","product_tag-oil","product_tag-painier","product_tag-powerplus","product_tag-pump","product_tag-sanli","product_tag-sovereign","product_tag-sumo","product_tag-timberpro","product_tag-universal-parts","product_tag-worm"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.7 - 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