This listing corrects an error in our own parts data, and the correction changes what the part is. The folder description called 187-9090 a fan motor. Caterpillar’s parts book calls it PUMP GP-PISTON -BRAKE, a member of the brake pump and mounting group 152-6961, and the catalogue title gives it a displacement of 18Cc. An 18 cm3 variable piston pump is exactly the size Cat uses for brake and auxiliary supply duty, and far too small to drive the cooling fan on a 40-tonne truck.<\/p>\n
Cat documents the 735 and 740 fan drive in manual RENR5126, and the circuit is built from a gear pump and a gear motor<\/strong>, regulated by a coolant-temperature valve with relief, check and bypass valves. On the 735 the fan pump is driven from the top of the transmission; on the 740 it is driven at the rear of the steering piston pump. The same text locates the fan and steering gear pump below the brake piston pump, which is the sentence that settles it: on these trucks there is a brake piston<\/em> pump and a separate fan engrenage<\/em> pump, and 187-9090 is the piston one.<\/p>\n The fan wording came from supplier titles that print both in one line, such as ‘Brake Pump GP Piston for 735 735B 740 740B Fan Pump’. That is search-term stuffing, and it is how workshops end up with a brake pump in a fan-circuit enquiry.<\/p>\n CAT 735 from prefix B1N 00001, 740 Ejector Truck at B1R 00001, and 740B at L4E 00001, on the 3406E generation. The 735B prefix is not individually booked in the material we checked, so treat it as confirm by PIN. Do not attach C13 or C15 engines to these prefixes; the current Cat 735 and 740 are a different machine on different engines, and their pumps are different parts.<\/p>\n 224-4432, reman 10R-4355, is the main hydraulic piston pump on the same trucks. It is a different circuit, a different displacement and a different price. Any listing that offers 187-9090 and 224-4432 as interchangeable has not read the parts book, and a machine fitted with the wrong one will either have no brake reserve pressure or no implement power.<\/p>\n Notre regulator diagnosis and adjustment guide<\/a> covers compensator testing on variable piston pumps generally, and la liste de contr\u00f4le de r\u00e9fection du kit de joints<\/a> covers rebuild scope.<\/p>\n Match shaft spline, pilot, flange, port positions and the compensator setting 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. On a brake circuit, confirm accumulator charge and warning-lamp behaviour before the machine returns to work.<\/p>\n Commande minimum une pi\u00e8ce. Les unit\u00e9s aftermarket neuves b\u00e9n\u00e9ficient d'une garantie de trois \u00e0 six mois telle qu'indiqu\u00e9e sur votre facture proforma. Test\u00e9es au banc, photographi\u00e9es conform\u00e9ment \u00e0 votre commande avant la fermeture de la caisse en bois, livraison sous 5 \u00e0 8 jours ouvrables \u00e0 compter du paiement sous r\u00e9serve de stock. La gamme se situe sous Pompe hydraulique CAT<\/a>.<\/p>","protected":false},"excerpt":{"rendered":" Pi\u00e8ce :<\/strong> Pompe \u00e0 piston d'alimentation de frein 187-9090 pour tombereaux articul\u00e9s CAT 735, 735B, 740 et 740B. Caterpillar la r\u00e9f\u00e9rence comme une pompe \u00e0 piston de base 18Cc, \u00e0 piston axial \u00e0 cylindr\u00e9e variable, et la d\u00e9signation de l'article dans le catalogue de pi\u00e8ces est PUMP GP-PISTON -BRAKE dans le groupe 152-6961.<\/p>\n Il ne s'agit pas d'un moteur de ventilateur ni d'une pompe de ventilateur.<\/strong> Notre fiche de r\u00e9ception de pi\u00e8ces l'a \u00e9tiquet\u00e9e ainsi et l'\u00e9tiquette est erron\u00e9e ; les preuves sont expos\u00e9es ci-dessous. \u00c9quivalent reman Cat 10R-6685.<\/p>\n Fourni comme suit :<\/strong> Remplacement neuf de marque HTD, fabriqu\u00e9 en Chine. MOQ 1 pi\u00e8ce, caisse en bois, exp\u00e9dition sous 5 \u00e0 8 jours ouvrables.<\/p>","protected":false},"featured_media":4526,"template":"","meta":[],"product_brand":[],"product_cat":[70,46],"product_tag":[743,742,747,744,745,746,54],"class_list":["post-4560","product","type-product","status-publish","has-post-thumbnail","product_cat-cat-hydraulic-pump","product_cat-excavator-hydraulic-pump","product_tag-10r-6685","product_tag-187-9090","product_tag-brake-pump","product_tag-cat-735","product_tag-cat-740","product_tag-cat-740b","product_tag-caterpillar","first","instock","shipping-taxable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/www.hongtengdaparts.com\/fr\/wp-json\/wp\/v2\/product\/4560","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.hongtengdaparts.com\/fr\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.hongtengdaparts.com\/fr\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.hongtengdaparts.com\/fr\/wp-json\/wp\/v2\/media\/4526"}],"wp:attachment":[{"href":"https:\/\/www.hongtengdaparts.com\/fr\/wp-json\/wp\/v2\/media?parent=4560"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.hongtengdaparts.com\/fr\/wp-json\/wp\/v2\/product_brand?post=4560"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.hongtengdaparts.com\/fr\/wp-json\/wp\/v2\/product_cat?post=4560"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.hongtengdaparts.com\/fr\/wp-json\/wp\/v2\/product_tag?post=4560"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}Applicabilit\u00e9<\/h2>\n
What not to cross<\/h2>\n
Failure signs on a brake supply pump<\/h2>\n
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Montage et commande<\/h2>\n