{"id":4691,"date":"2026-10-27T02:39:23","date_gmt":"2026-10-27T02:39:23","guid":{"rendered":"https:\/\/www.hongtengdaparts.com\/product\/komatsu-708-1g-00041-steering-pump-wa600-6\/"},"modified":"2026-10-27T03:09:04","modified_gmt":"2026-10-27T03:09:04","slug":"komatsu-708-1g-00041-steering-pump-wa600-6","status":"publish","type":"product","link":"https:\/\/www.hongtengdaparts.com\/el\/product\/komatsu-708-1g-00041-steering-pump-wa600-6\/","title":{"rendered":"708-1G-00041 Steering Pump for Komatsu WA600-6 Loader, WD600-6"},"content":{"rendered":"<p>A steering pump failure on a large wheel loader does not look like a hydraulic failure at first. It looks like a machine that is heavy to steer at idle and normal once the engine speed rises, which most operators report as a steering problem rather than a hydraulic one. That is why these pumps get replaced after a valve diagnosis and the fault remains.<\/p>\n<h2>\u0395\u03c6\u03b1\u03c1\u03bc\u03bf\u03b3\u03ae \u03ba\u03b1\u03b9 \u03c4\u03b5\u03ba\u03bc\u03b7\u03c1\u03af\u03c9\u03c3\u03b7<\/h2>\n<p>Komatsu WA600-6 wheel loader and WD600-6. Dealer surplus inventory records describe the part with the steering pump designation, which is the strongest evidence available; Komatsu&#8217;s online parts catalogue does not return a page we can cite for this number, so the item name is dealer-established rather than manufacturer-confirmed. Trade listings that call it a fan pump are not supported by anything we could check.<\/p>\n<h2>How a steering pump fails<\/h2>\n<ul>\n<li><strong>Loss of flow at low engine speed.<\/strong> The steering feels heavy at idle and improves with rpm. That is internal wear, not a relief valve.<\/li>\n<li><strong>Contamination scoring the sliding surfaces.<\/strong> Large loaders circulate a lot of oil through a steering circuit that is often the last thing anyone filters.<\/li>\n<li><strong>Case drain back-pressure.<\/strong> Finishes the shaft seal, and the leak is then blamed on a bad pump.<\/li>\n<li><strong>Cavitation from a restricted suction line.<\/strong> Noise plus a slowly fading steer.<\/li>\n<\/ul>\n<p>Before ordering, measure steering system pressure at idle and at rated rpm and compare against the machine specification. Our <a href=\"https:\/\/www.hongtengdaparts.com\/el\/product\/komatsu-708-1u-00170-steering-pump-wa380-6\/\">WA380-6 steering pump page<\/a> \u03ba\u03b1\u03b9 \u03c4\u03b7\u03bd <a href=\"https:\/\/www.hongtengdaparts.com\/el\/%ce%b5%ce%b3%cf%87%ce%b5%ce%b9%cf%81%ce%af%ce%b4%ce%b9%ce%bf-%cf%80%cf%81%ce%bf%ce%b4%ce%b9%ce%b1%ce%b3%cf%81%ce%b1%cf%86%cf%8e%ce%bd-%ce%b3%ce%b9%ce%b1-%ce%b1%ce%b3%ce%bf%cf%81%ce%b1%cf%83%cf%84\/\">\u03bf\u03b4\u03b7\u03b3\u03cc\u03c2 \u03b1\u03b3\u03bf\u03c1\u03b1\u03c3\u03c4\u03ae \u03b1\u03bd\u03c4\u03bb\u03b9\u03ce\u03bd \u03ba\u03b1\u03b9 \u03c0\u03c1\u03bf\u03b4\u03b9\u03b1\u03b3\u03c1\u03b1\u03c6\u03ce\u03bd \u03bc\u03b1\u03c2<\/a> cover how to do that comparison, and <a href=\"https:\/\/www.hongtengdaparts.com\/el\/%ce%ba%ce%b9%cf%84-%cf%83%cf%84%ce%b5%ce%b3%ce%b1%ce%bd%ce%bf%cf%80%ce%bf%ce%af%ce%b7%cf%83%ce%b7%cf%82-%cf%85%ce%b4%cf%81%ce%b1%cf%85%ce%bb%ce%b9%ce%ba%ce%ae%cf%82-%ce%b1%ce%bd%cf%84%ce%bb%ce%af\/\">\u03c4\u03b7 \u03bb\u03af\u03c3\u03c4\u03b1 \u03b5\u03bb\u03ad\u03b3\u03c7\u03bf\u03c5 \u03b1\u03bd\u03b1\u03ba\u03b1\u03c4\u03b1\u03c3\u03ba\u03b5\u03c5\u03ae\u03c2 \u03ba\u03b9\u03c4 \u03c3\u03c4\u03b5\u03b3\u03b1\u03bd\u03bf\u03c0\u03bf\u03af\u03b7\u03c3\u03b7\u03c2<\/a> explains what a rebuild should cover if you would rather repair than replace.<\/p>\n<h2>\u03a4\u03bf\u03c0\u03bf\u03b8\u03ad\u03c4\u03b7\u03c3\u03b7<\/h2>\n<p>Match shaft spline, pilot, flange, port positions and the control or orifice arrangement against the removed pump; steering pumps on these loaders are often specified by build option, so the serial prefix matters. Prime with clean oil before cranking, change the return filter element, and keep the case drain unrestricted to tank. Target cleanliness around ISO 4406 18\/16\/13.<\/p>\n<h2>\u03a0\u03b1\u03c1\u03b1\u03b3\u03b3\u03b5\u03bb\u03af\u03b1<\/h2>\n<p>Minimum order one piece. Three to six month warranty on new aftermarket units as stated on your proforma invoice. Bench checked and photographed against your order before the wooden case closes, delivery 5 to 8 working days from payment subject to stock. the range sits under <a href=\"https:\/\/www.hongtengdaparts.com\/el\/product-category\/%cf%85%ce%b4%cf%81%ce%b1%cf%85%ce%bb%ce%b9%ce%ba%ce%ae-%ce%b1%ce%bd%cf%84%ce%bb%ce%af%ce%b1-%ce%b5%ce%ba%cf%83%ce%ba%ce%b1%cf%86%ce%ad%ce%b1\/%cf%85%ce%b4%cf%81%ce%b1%cf%85%ce%bb%ce%b9%ce%ba%ce%ae-%ce%b1%ce%bd%cf%84%ce%bb%ce%af%ce%b1-komatsu\/\">\u03a5\u03b4\u03c1\u03b1\u03c5\u03bb\u03b9\u03ba\u03ae \u03b1\u03bd\u03c4\u03bb\u03af\u03b1 Komatsu<\/a>.<\/p>","protected":false},"excerpt":{"rendered":"<p><strong>\u0391\u03bd\u03c4\u03b1\u03bb\u03bb\u03b1\u03ba\u03c4\u03b9\u03ba\u03cc:<\/strong> 708-1G-00041 hydraulic steering pump for the Komatsu WA600-6 wheel loader and WD600-6. Dealer parts records list it as a P.O.R. hydraulic steering pump for that machine.<\/p>\n<p><strong>Not a fan pump.<\/strong> Our source folder listed this part under a generic hydraulic pump heading and other listings call it a fan pump; Komatsu&#8217;s circuit designation and the dealer records say steering, and that is what we sell it as.<\/p>\n<p><strong>\u03a0\u03b1\u03c1\u03ad\u03c7\u03b5\u03c4\u03b1\u03b9 \u03c9\u03c2:<\/strong> \u03bd\u03ad\u03bf \u03b1\u03bd\u03c4\u03b1\u03bb\u03bb\u03b1\u03ba\u03c4\u03b9\u03ba\u03cc aftermarket \u03bc\u03ac\u03c1\u03ba\u03b1\u03c2 HTD, \u03ba\u03b1\u03c4\u03b1\u03c3\u03ba\u03b5\u03c5\u03b1\u03c3\u03bc\u03ad\u03bd\u03bf \u03c3\u03c4\u03b7\u03bd \u039a\u03af\u03bd\u03b1. \u0395\u03bb\u03ac\u03c7\u03b9\u03c3\u03c4\u03b7 \u03c0\u03bf\u03c3\u03cc\u03c4\u03b7\u03c4\u03b1 \u03c0\u03b1\u03c1\u03b1\u03b3\u03b3\u03b5\u03bb\u03af\u03b1\u03c2 1 \u03c4\u03b5\u03bc\u03ac\u03c7\u03b9\u03bf, \u03be\u03cd\u03bb\u03b9\u03bd\u03b7 \u03b8\u03ae\u03ba\u03b7, \u03b1\u03c0\u03bf\u03c3\u03c4\u03bf\u03bb\u03ae 5 \u03ad\u03c9\u03c2 8 \u03b5\u03c1\u03b3\u03ac\u03c3\u03b9\u03bc\u03b5\u03c2 \u03b7\u03bc\u03ad\u03c1\u03b5\u03c2.<\/p>","protected":false},"featured_media":4639,"template":"","meta":[],"product_brand":[],"product_cat":[71,46],"product_tag":[818,819,737,680],"class_list":["post-4691","product","type-product","status-publish","has-post-thumbnail","product_cat-komatsu-hydraulic-pump","product_cat-excavator-hydraulic-pump","product_tag-708-1g-00041","product_tag-komatsu-wa600-6","product_tag-steering-pump","product_tag-wheel-loader","first","instock","shipping-taxable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/www.hongtengdaparts.com\/el\/wp-json\/wp\/v2\/product\/4691","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.hongtengdaparts.com\/el\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.hongtengdaparts.com\/el\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.hongtengdaparts.com\/el\/wp-json\/wp\/v2\/media\/4639"}],"wp:attachment":[{"href":"https:\/\/www.hongtengdaparts.com\/el\/wp-json\/wp\/v2\/media?parent=4691"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.hongtengdaparts.com\/el\/wp-json\/wp\/v2\/product_brand?post=4691"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.hongtengdaparts.com\/el\/wp-json\/wp\/v2\/product_cat?post=4691"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.hongtengdaparts.com\/el\/wp-json\/wp\/v2\/product_tag?post=4691"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}