{"id":4632,"date":"2026-10-27T02:09:40","date_gmt":"2026-10-27T02:09:40","guid":{"rendered":"https:\/\/www.hongtengdaparts.com\/product\/komatsu-708-1s-00390-fan-pump-d375a-6\/"},"modified":"2026-10-27T02:09:40","modified_gmt":"2026-10-27T02:09:40","slug":"komatsu-708-1s-00390-fan-pump-d375a-6","status":"publish","type":"product","link":"https:\/\/www.hongtengdaparts.com\/es\/product\/komatsu-708-1s-00390-fan-pump-d375a-6\/","title":{"rendered":"708-1S-00390 Bomba de ventilador para bulldozer Komatsu D375A-6, bomba hidr\u00e1ulica"},"content":{"rendered":"<p>Not every part number in a supplier catalogue appears in the manufacturer&#8217;s own web parts store, and we treat that as a fact to disclose rather than a detail to smooth over. 708-1S-00390 is one of those. Komatsu&#8217;s online catalogue returns nothing for it, while several independent trade listings describe the same number as the fan pump for a D375A-6, and the 708-1S prefix is consistent with a fan pump in Komatsu&#8217;s numbering.<\/p>\n<h2>What we can and cannot state<\/h2>\n<ul>\n<li><strong>Confirmed by pattern:<\/strong> the 708-1S prefix belongs to Komatsu&#8217;s hydraulic pump group, and the sibling numbers in that group are published by Komatsu as Pump Assembly.<\/li>\n<li><strong>Trade-established, not manufacturer-confirmed:<\/strong> D375A-6 application.<\/li>\n<li><strong>Not verified:<\/strong> displacement, pressure, flow, and any supersession relationship to other 708-1S numbers.<\/li>\n<\/ul>\n<p>If you need certainty before ordering, the fastest route is a photograph of the plate on your old pump plus the machine serial prefix. We check those against the parts catalogue for your build and tell you if the number is wrong.<\/p>\n<h2>Why a D375-class fan pump fails<\/h2>\n<p>Large dozers work the hardest cooling duty in earthmoving: continuous high converter load, radiant heat from the engine and torque converter, and a core face that collects fine dust. The fan pump runs near maximum displacement for long periods, in oil that is hotter than the design point, and that combination is what wears the sliding surfaces. Once volumetric efficiency drops, the fan cannot reach speed, oil temperature climbs, and the machine derates.<\/p>\n<p>Test before buying: clean the cores, measure pump output pressure and flow hot, and check the fan motor case drain. Our <a href=\"https:\/\/www.hongtengdaparts.com\/es\/diagnostico-de-la-bomba-del-ventilador-hidraulico-de-la-excavadora\/\">gu\u00eda de diagn\u00f3stico de bombas de ventilador hidr\u00e1ulicas<\/a> sets out the sequence, and <a href=\"https:\/\/www.hongtengdaparts.com\/es\/la-valvula-de-retencion-de-verificacion-del-sobrecalentamiento-del-aceite-hidraulico-de-la-excavadora\/\">the check valve article<\/a> covers the case where every wear part is new and the oil still runs hot.<\/p>\n<h2>Montaje<\/h2>\n<p>Match shaft spline, pilot, flange, port positions and control orientation against the removed pump. Prime the casing with clean oil before cranking. Change the return filter element and clear the suction strainer, targeting ISO 4406 18\/16\/13. Keep the case drain unrestricted to tank. Prove full fan speed under load and log temperatures.<\/p>\n<h2>Pedido<\/h2>\n<p>Pedido m\u00ednimo una pieza. Garant\u00eda de tres a seis meses en unidades nuevas del mercado de repuestos seg\u00fan lo indicado en su factura proforma. Verificada en banco y fotografiada contra su pedido antes de cerrar la caja de madera, entrega de 5 a 8 d\u00edas h\u00e1biles desde el pago sujeto a existencias. La gama se encuentra bajo <a href=\"https:\/\/www.hongtengdaparts.com\/es\/categoria-producto\/motor-hidraulico-del-ventilador\/motor-del-ventilador-komatsu\/\">Motor de ventilador hidr\u00e1ulico Komatsu<\/a>.<\/p>","protected":false},"excerpt":{"rendered":"<p><strong>Pieza:<\/strong> Bomba hidr\u00e1ulica de ventilador 708-1S-00390 para el tractor de orugas Komatsu D375A-6, listada en datos de piezas comerciales como bomba de ventilador de bulldozer en la familia de bombas 708-1S.<\/p>\n<p><strong>Nota de evidencia:<\/strong> este n\u00famero no est\u00e1 presente en el cat\u00e1logo en l\u00ednea de piezas de Komatsu America que podemos consultar, por lo que el nombre del art\u00edculo no pudo confirmarse de primera mano. La aplicaci\u00f3n a continuaci\u00f3n est\u00e1 establecida comercialmente, no confirmada por el fabricante.<\/p>\n<p><strong>Suministrada como:<\/strong> reemplazo nuevo de marca HTD, fabricado en China. MOQ 1 pieza, caja de madera, despacho de 5 a 8 d\u00edas h\u00e1biles.<\/p>","protected":false},"featured_media":4595,"template":"","meta":[],"product_brand":[],"product_cat":[772,37],"product_tag":[799,785,555,800],"class_list":["post-4632","product","type-product","status-publish","has-post-thumbnail","product_cat-komatsu-fan-motor","product_cat-hydraulic-fan-motor","product_tag-708-1s-00390","product_tag-dozer","product_tag-fan-pump","product_tag-komatsu-d375a-6","first","instock","shipping-taxable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/www.hongtengdaparts.com\/es\/wp-json\/wp\/v2\/product\/4632","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.hongtengdaparts.com\/es\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.hongtengdaparts.com\/es\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.hongtengdaparts.com\/es\/wp-json\/wp\/v2\/media\/4595"}],"wp:attachment":[{"href":"https:\/\/www.hongtengdaparts.com\/es\/wp-json\/wp\/v2\/media?parent=4632"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.hongtengdaparts.com\/es\/wp-json\/wp\/v2\/product_brand?post=4632"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.hongtengdaparts.com\/es\/wp-json\/wp\/v2\/product_cat?post=4632"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.hongtengdaparts.com\/es\/wp-json\/wp\/v2\/product_tag?post=4632"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}