{"id":2257,"date":"2026-06-11T02:50:02","date_gmt":"2026-06-11T02:50:02","guid":{"rendered":"https:\/\/www.hongtengdaparts.com\/?post_type=product&#038;p=2257"},"modified":"2026-06-11T02:50:02","modified_gmt":"2026-06-11T02:50:02","slug":"sensor-de-presion-diferencial-genuino-hitachi-4339559","status":"publish","type":"product","link":"https:\/\/www.hongtengdaparts.com\/es\/product\/hitachi-genuine-differential-pressure-sensor-4339559\/","title":{"rendered":"Sensor de presi\u00f3n diferencial genuino Hitachi 4339559 \u2013 Para excavadoras EX200-3E \/ EX200-2 \/ EX200-3"},"content":{"rendered":"<p><strong>V\u00eddeo del producto<\/strong><\/p>\n<div style=\"width: 800px;\" class=\"wp-video\"><video class=\"wp-video-shortcode\" id=\"video-2257-1\" width=\"800\" height=\"450\" preload=\"metadata\" controls=\"controls\"><source type=\"video\/mp4\" src=\"https:\/\/www.hongtengdaparts.com\/wp-content\/uploads\/2026\/06\/1d751881e45763edba17be876238c4c2_raw.mp4?_=1\" \/><a href=\"https:\/\/www.hongtengdaparts.com\/wp-content\/uploads\/2026\/06\/1d751881e45763edba17be876238c4c2_raw.mp4\">https:\/\/www.hongtengdaparts.com\/wp-content\/uploads\/2026\/06\/1d751881e45763edba17be876238c4c2_raw.mp4<\/a><\/video><\/div>\n<h3><span class=\"\">1. Por qu\u00e9 es importante un sensor original $30 \u2013 El costo real de una falsificaci\u00f3n<\/span><\/h3>\n<p class=\"ds-markdown-paragraph\"><span class=\"\">Un sensor de presi\u00f3n diferencial mide la obstrucci\u00f3n del filtro de retorno hidr\u00e1ulico o del filtro de aire del motor. Parece simple. Pero un sensor no original puede costarle mucho m\u00e1s que su precio de compra.<\/span><\/p>\n<div class=\"ds-scroll-area ds-scroll-area--show-on-focus-within ds-scroll-area--enabled _1210dd7 c03cafe9\">\n<table>\n<thead>\n<tr>\n<th><span class=\"\">Modo de fallo<\/span><\/th>\n<th><span class=\"\">Copia barata<\/span><\/th>\n<th><span class=\"\">Original Hitachi (4339559)<\/span><\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong><span class=\"\">Falsa alarma<\/span><\/strong><\/td>\n<td><span class=\"\">Activa la luz de advertencia cuando el filtro est\u00e1 limpio<\/span><\/td>\n<td><span class=\"\">Lectura precisa \u2013 sin tiempos de inactividad innecesarios<\/span><\/td>\n<\/tr>\n<tr>\n<td><strong><span class=\"\">Sin alarma<\/span><\/strong><\/td>\n<td><span class=\"\">No advierte \u2013 el filtro se desv\u00eda, los residuos circulan<\/span><\/td>\n<td><span class=\"\">Advertencia confiable \u2013 cambia el filtro a tiempo<\/span><\/td>\n<\/tr>\n<tr>\n<td><strong><span class=\"\">Deriva de se\u00f1al despu\u00e9s de 500 horas<\/span><\/strong><\/td>\n<td><span class=\"\">Com\u00fan (deriva t\u00e9rmica)<\/span><\/td>\n<td><span class=\"\">Probado hasta m\u00e1s de 5,000 horas<\/span><\/td>\n<\/tr>\n<tr>\n<td><strong><span class=\"\">Ajuste del conector<\/span><\/strong><\/td>\n<td><span class=\"\">Pasadores sueltos \u2013 se\u00f1al intermitente<\/span><\/td>\n<td><span class=\"\">Ajuste firme \u2013 contactos ba\u00f1ados en oro<\/span><\/td>\n<\/tr>\n<tr>\n<td><strong><span class=\"\">Consecuencia del fallo<\/span><\/strong><\/td>\n<td><span class=\"\">Parada no planificada o da\u00f1o hidr\u00e1ulico mayor<\/span><\/td>\n<td><span class=\"\">Mantenimiento predecible<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p class=\"ds-markdown-paragraph\"><strong><span class=\"\">El c\u00e1lculo:<\/span><\/strong><span class=\"\">\u00a0Un filtro hidr\u00e1ulico de retorno obstruido y desviado puede enviar residuos a trav\u00e9s de la bomba principal. Reemplazo de bomba: $5,000\u2013$8,000. Sensor original: ~$30. La falsa econom\u00eda es costosa.<\/span><\/p>\n<h3><span class=\"\">2. Tres formas de detectar una falsificaci\u00f3n 4339559 \u2013 Gu\u00eda de inspecci\u00f3n visual<\/span><\/h3>\n<p class=\"ds-markdown-paragraph\"><span class=\"\">Hemos visto sensores Hitachi falsificados en el mercado. As\u00ed es como distinguir el real del falso antes de instalarlo.<\/span><\/p>\n<div class=\"ds-scroll-area ds-scroll-area--show-on-focus-within ds-scroll-area--enabled _1210dd7 c03cafe9\">\n<table>\n<thead>\n<tr>\n<th><span class=\"\">Punto de inspecci\u00f3n<\/span><\/th>\n<th><span class=\"\">Original Hitachi 4339559<\/span><\/th>\n<th><span class=\"\">Falsificaci\u00f3n com\u00fan<\/span><\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong><span class=\"\">L\u00ednea de moldeo<\/span><\/strong><\/td>\n<td><span class=\"\">Limpia, uniforme, sin rebaba<\/span><\/td>\n<td><span class=\"\">Rugosa, desigual o con exceso de pl\u00e1stico<\/span><\/td>\n<\/tr>\n<tr>\n<td><strong><span class=\"\">Grabado del n\u00famero de pieza<\/span><\/strong><\/td>\n<td><span class=\"\">Grabado con l\u00e1ser, n\u00edtido, permanente<\/span><\/td>\n<td><span class=\"\">Impreso o estampado superficial \u2013 se borra<\/span><\/td>\n<\/tr>\n<tr>\n<td><strong><span class=\"\">Color del pin del conector<\/span><\/strong><\/td>\n<td><span class=\"\">Ba\u00f1ado en oro (amarillento)<\/span><\/td>\n<td><span class=\"\">Ba\u00f1ado en esta\u00f1o (plateado) \u2013 se corroe m\u00e1s r\u00e1pido<\/span><\/td>\n<\/tr>\n<tr>\n<td><strong><span class=\"\">Material del sello t\u00f3rico (O-ring)<\/span><\/strong><\/td>\n<td><span class=\"\">Fluorocarbono (marr\u00f3n), resistente a combustible<\/span><\/td>\n<td><span class=\"\">Nitrilo (negro) \u2013 se hincha en aceite<\/span><\/td>\n<\/tr>\n<tr>\n<td><strong><span class=\"\">Peso<\/span><\/strong><\/td>\n<td><span class=\"\">28g \u00b11g<\/span><\/td>\n<td><span class=\"\">Generalmente m\u00e1s ligero (&lt;25g) o m\u00e1s pesado (con metal a\u00f1adido)<\/span><\/td>\n<\/tr>\n<tr>\n<td><strong><span class=\"\">Etiqueta de la caja<\/span><\/strong><\/td>\n<td><span class=\"\">Logotipo de construcci\u00f3n Hitachi, c\u00f3digo de lote<\/span><\/td>\n<td><span class=\"\">Etiqueta gen\u00e9rica o ausente<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p class=\"ds-markdown-paragraph\"><strong><span class=\"\">En caso de duda, env\u00edenos una foto del sensor y la caja \u2013 lo autenticaremos en un plazo de 2 horas.<\/span><\/strong><\/p>\n<h3><span class=\"\">3. Qu\u00e9 hace realmente este sensor \u2013 Y qu\u00e9 sucede cuando miente<\/span><\/h3>\n<p class=\"ds-markdown-paragraph\"><span class=\"\">En EX200-3E, EX200-2, EX200-3, el sensor de presi\u00f3n diferencial (4339559) monitorea el filtro de retorno hidr\u00e1ulico. La ECU compara la presi\u00f3n antes y despu\u00e9s del filtro.<\/span><\/p>\n<div class=\"ds-scroll-area ds-scroll-area--show-on-focus-within ds-scroll-area--enabled _1210dd7 c03cafe9\">\n<table>\n<thead>\n<tr>\n<th><span class=\"\">Lectura del sensor<\/span><\/th>\n<th><span class=\"\">Condici\u00f3n real<\/span><\/th>\n<th><span class=\"\">Acci\u00f3n de la ECU<\/span><\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><span class=\"\">Normal<\/span><\/td>\n<td><span class=\"\">Filtro limpio<\/span><\/td>\n<td><span class=\"\">Ninguna<\/span><\/td>\n<\/tr>\n<tr>\n<td><span class=\"\">Diferencial alta<\/span><\/td>\n<td><span class=\"\">Filtro obstruido<\/span><\/td>\n<td><span class=\"\">Luz de advertencia + reducci\u00f3n autom\u00e1tica de aceleraci\u00f3n opcional (si est\u00e1 equipado)<\/span><\/td>\n<\/tr>\n<tr>\n<td><span class=\"\">Sin se\u00f1al<\/span><\/td>\n<td><span class=\"\">Sensor averiado<\/span><\/td>\n<td><span class=\"\">Luz de verificaci\u00f3n del motor + modo de emergencia (flujo de bomba reducido)<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p class=\"ds-markdown-paragraph\"><strong><span class=\"\">Si un sensor falso lee \u201cnormal\u201d cuando el filtro est\u00e1 obstruido:<\/span><\/strong><span class=\"\">\u00a0La v\u00e1lvula de derivaci\u00f3n del filtro se abre. El aceite sin filtrar circula. El desgaste de la bomba y la v\u00e1lvula se acelera. Es posible que no lo note hasta que falle una bomba, meses despu\u00e9s.<\/span><\/p>\n<h3><span class=\"\">4. Caso real: un taller que aprendi\u00f3 por las malas<\/span><\/h3>\n<p class=\"ds-markdown-paragraph\"><span class=\"\">Un taller de reparaci\u00f3n en Manila compr\u00f3 seis sensores \u201ccompatibles\u201d baratos para reconstrucciones de EX200\u20113. En tres meses, dos m\u00e1quinas regresaron con advertencias de derivaci\u00f3n del filtro, pero los sensores mostraban normal. El filtro real estaba obstruido; los sensores estaban muertos.<\/span><\/p>\n<p class=\"ds-markdown-paragraph\"><span class=\"\">Reemplazaron uno con nuestro sensor genuino 4339559 y lo probaron: la advertencia se encendi\u00f3 exactamente cuando el filtro alcanz\u00f3 la especificaci\u00f3n. \u00bfLos otros cinco sensores baratos? Todos fallaron al leer correctamente. Los desecharon y pidieron sensores genuinos.<\/span><\/p>\n<p class=\"ds-markdown-paragraph\"><strong><span class=\"\">Cita del due\u00f1o del taller:<\/span><\/strong><span class=\"\">\u00a0<\/span><em><span class=\"\">\u201cEl sensor barato me ahorr\u00f3 $20 cada uno. Me cost\u00f3 dos viajes de regreso ($400 cada uno) y clientes enojados. Nunca m\u00e1s.\u201d<\/span><\/em><\/p>\n<h3><span class=\"\">5. Lista de verificaci\u00f3n de instalaci\u00f3n: evite errores comunes<\/span><\/h3>\n<div class=\"ds-scroll-area ds-scroll-area--show-on-focus-within ds-scroll-area--enabled _1210dd7 c03cafe9\">\n<table>\n<thead>\n<tr>\n<th><span class=\"\">Paso<\/span><\/th>\n<th><span class=\"\">Qu\u00e9 hacer<\/span><\/th>\n<th><span class=\"\">Por qu\u00e9<\/span><\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><span class=\"\">1<\/span><\/td>\n<td><span class=\"\">Limpie el puerto de montaje<\/span><\/td>\n<td><span class=\"\">La suciedad que ingresa a la punta del sensor bloquea el puerto de presi\u00f3n<\/span><\/td>\n<\/tr>\n<tr>\n<td><span class=\"\">2<\/span><\/td>\n<td><span class=\"\">Reemplace la arandela de sellado de cobre (si est\u00e1 equipada)<\/span><\/td>\n<td><span class=\"\">La arandela vieja tiene fugas: el sensor lee bajo<\/span><\/td>\n<\/tr>\n<tr>\n<td><span class=\"\">3<\/span><\/td>\n<td><span class=\"\">Apriete a 18\u201322 Nm (no m\u00e1s)<\/span><\/td>\n<td><span class=\"\">El apriete excesivo agrieta la carcasa de pl\u00e1stico<\/span><\/td>\n<\/tr>\n<tr>\n<td><span class=\"\">4<\/span><\/td>\n<td><span class=\"\">Aplique grasa diel\u00e9ctrica a los pines del conector<\/span><\/td>\n<td><span class=\"\">Previene la entrada de humedad y la corrosi\u00f3n de los pines<\/span><\/td>\n<\/tr>\n<tr>\n<td><span class=\"\">5<\/span><\/td>\n<td><span class=\"\">Despu\u00e9s de la instalaci\u00f3n, pruebe con una restricci\u00f3n conocida<\/span><\/td>\n<td><span class=\"\">Use una v\u00e1lvula de bola para simular una obstrucci\u00f3n: verifique que se encienda la luz de advertencia<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p class=\"ds-markdown-paragraph\"><strong><span class=\"\">Incluimos una gu\u00eda ilustrada de una p\u00e1gina con cada sensor.<\/span><\/strong><\/p>\n<h3><span class=\"\">6. Contenido del producto: simple y completo<\/span><\/h3>\n<div class=\"ds-scroll-area ds-scroll-area--show-on-focus-within ds-scroll-area--enabled _1210dd7 c03cafe9\">\n<table>\n<thead>\n<tr>\n<th><span class=\"\">Elemento<\/span><\/th>\n<th><span class=\"\">Cantidad<\/span><\/th>\n<th><span class=\"\">Nota<\/span><\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><span class=\"\">Sensor de presi\u00f3n diferencial 4339559<\/span><\/td>\n<td><span class=\"\">1<\/span><\/td>\n<td><span class=\"\">Hitachi genuino, fabricado en Jap\u00f3n<\/span><\/td>\n<\/tr>\n<tr>\n<td><span class=\"\">Arandela de sellado de cobre<\/span><\/td>\n<td><span class=\"\">1<\/span><\/td>\n<td><span class=\"\">Preinstalada o separada (depende del lote)<\/span><\/td>\n<\/tr>\n<tr>\n<td><span class=\"\">Tapa protectora<\/span><\/td>\n<td><span class=\"\">1<\/span><\/td>\n<td><span class=\"\">Extra\u00edble antes de la instalaci\u00f3n<\/span><\/td>\n<\/tr>\n<tr>\n<td><span class=\"\">Caja de cart\u00f3n<\/span><\/td>\n<td><span class=\"\">1<\/span><\/td>\n<td><span class=\"\">Embalaje estilo Hitachi (c\u00f3digo de lote impreso)<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p class=\"ds-markdown-paragraph\"><strong><span class=\"\">No incluido:<\/span><\/strong><span class=\"\">\u00a0Arn\u00e9s de cableado, carcasa del filtro o herramienta de diagn\u00f3stico.<\/span><\/p>\n<h3><span class=\"\">7. Pedido y entrega<\/span><\/h3>\n<div class=\"ds-scroll-area ds-scroll-area--show-on-focus-within ds-scroll-area--enabled _1210dd7 c03cafe9\">\n<table>\n<thead>\n<tr>\n<th><span class=\"\">Elemento<\/span><\/th>\n<th><span class=\"\">Detalle<\/span><\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><span class=\"\">Compatibilidad<\/span><\/td>\n<td><span class=\"\">Hitachi EX200-2, EX200-3, EX200-3E (tambi\u00e9n EX220, EX270 con la misma carcasa de filtro \u2013 verificar)<\/span><\/td>\n<\/tr>\n<tr>\n<td><span class=\"\">Cantidad m\u00ednima de pedido<\/span><\/td>\n<td><span class=\"\">1 unidad<\/span><\/td>\n<\/tr>\n<tr>\n<td><span class=\"\">Plazo de entrega<\/span><\/td>\n<td><span class=\"\">6\u20138 d\u00edas h\u00e1biles<\/span><\/td>\n<\/tr>\n<tr>\n<td><span class=\"\">Embalaje<\/span><\/td>\n<td><span class=\"\">Caja de cart\u00f3n dentro de cart\u00f3n reforzado<\/span><\/td>\n<\/tr>\n<tr>\n<td><span class=\"\">Pago<\/span><\/td>\n<td><span class=\"\">T\/T, XTransfer, PayPal, Western Union<\/span><\/td>\n<\/tr>\n<tr>\n<td><span class=\"\">Capacidad de suministro<\/span><\/td>\n<td><span class=\"\">300 piezas\/mes (stock genuino limitado)<\/span><\/td>\n<\/tr>\n<tr>\n<td><span class=\"\">Garant\u00eda<\/span><\/td>\n<td><span class=\"\">6 meses (solo defectos de fabricaci\u00f3n \u2013 sin garant\u00eda contra filtros obstruidos o da\u00f1os por residuos)<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<h3><span class=\"\">8. Antes de pedir \u2013 Verificaci\u00f3n<\/span><\/h3>\n<p class=\"ds-markdown-paragraph\"><span class=\"\">Debido a que los sensores falsificados son comunes, requerimos una de las siguientes opciones para confirmar que recibe un producto genuino:<\/span><\/p>\n<ul>\n<li>\n<p class=\"ds-markdown-paragraph\"><strong><span class=\"\">Opci\u00f3n A:<\/span><\/strong><span class=\"\">\u00a0Ordene directamente con nosotros \u2013 suministramos desde una fuente japonesa autorizada.<\/span><\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\"><strong><span class=\"\">Opci\u00f3n B:<\/span><\/strong><span class=\"\">\u00a0Env\u00ede una foto de su sensor antiguo (vista superior y lateral) \u2013 lo comparamos visualmente y confirmamos.<\/span><\/p>\n<\/li>\n<\/ul>\n<p class=\"ds-markdown-paragraph\"><strong><span class=\"\">No vendemos versiones \u201ccompatibles\u201d o \u201cde posventa\u201d de este sensor. Solo Hitachi genuino 4339559.<\/span><\/strong><\/p>\n<hr \/>\n<p class=\"ds-markdown-paragraph\"><strong><span class=\"\">No arriesgue su sistema hidr\u00e1ulico para ahorrar unos pocos d\u00f3lares. Instale piezas genuinas \u2013 y sepa que sus advertencias son reales.<\/span><\/strong><\/p>","protected":false},"excerpt":{"rendered":"<table>\n<tbody>\n<tr>\n<td><b>Modelo compatible<\/b><\/td>\n<td>EX200-3E EX200-2 EX200-3<\/td>\n<\/tr>\n<tr>\n<td><b>Nombre<\/b><\/td>\n<td>Sensor de presi\u00f3n diferencial original Hitachi para excavadora<\/td>\n<\/tr>\n<tr>\n<td><b>N\u00famero de Pieza<\/b><\/td>\n<td>4339559<\/td>\n<\/tr>\n<tr>\n<td><b>Origen<\/b><\/td>\n<td>Jap\u00f3n<\/td>\n<\/tr>\n<tr>\n<td><b>Dimensiones del paquete \/ Embalaje<\/b><\/td>\n<td>Caja de cart\u00f3n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><strong>Nota: La informaci\u00f3n de aplicaci\u00f3n proporcionada es solo de referencia. Confirme el n\u00famero de pieza y comp\u00e1relo con el componente antiguo antes de comprar. Si tiene alguna pregunta, no dude en\u00a0<a href=\"https:\/\/www.hongtengdaparts.com\/es\/contactenos\/\">Cont\u00e1ctenos<\/a>.<\/strong><br \/>\n<strong>Vale la pena elegir un producto que ofrezca un rendimiento estable, alta fiabilidad, f\u00e1cil instalaci\u00f3n y respuesta r\u00e1pida.<\/strong><\/p>","protected":false},"featured_media":2260,"template":"","meta":[],"product_brand":[],"product_cat":[57],"product_tag":[],"class_list":["post-2257","product","type-product","status-publish","has-post-thumbnail","product_cat-excavator-sensor","first","instock","shipping-taxable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/www.hongtengdaparts.com\/es\/wp-json\/wp\/v2\/product\/2257","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\/2260"}],"wp:attachment":[{"href":"https:\/\/www.hongtengdaparts.com\/es\/wp-json\/wp\/v2\/media?parent=2257"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.hongtengdaparts.com\/es\/wp-json\/wp\/v2\/product_brand?post=2257"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.hongtengdaparts.com\/es\/wp-json\/wp\/v2\/product_cat?post=2257"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.hongtengdaparts.com\/es\/wp-json\/wp\/v2\/product_tag?post=2257"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}