{"product_id":"2587185c91-genuine-wabco®-kit-accumulator-for-hcu-reservoir","title":"2587185C91 | Genuine Wabco® Kit, Accumulator For HCU - Reservoir","description":"\u003cp\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e:\u003cbr\u003eAn accumulator for an HCU (Hydraulic Control Unit) reservoir \u003cstrong\u003e2587185C91 \u003c\/strong\u003eis a component used in hydraulic systems—most commonly in things like ABS braking systems in cars or other fluid-powered machinery. Accumulator For HCU - Reservoir For\u003cstrong\u003e \u003c\/strong\u003eMack, \u003cspan style=\"font-size: 0.875rem;\"\u003eVolvo trucks, \u003c\/span\u003eFreightliner, Kenworth, Peterbilt, Navistar \/ International\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003ePart Number\u003cspan\u003e:\u003c\/span\u003e\u003c\/strong\u003e 2587185C91\u003cbr\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003cspan\u003e: New\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003eManufacture\/Brand\u003c\/strong\u003e\u003cspan\u003e: Wabco\u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003cstrong\u003e\u003cbr\u003eFits\u003cspan\u003e 2587185C91 \u003c\/span\u003eFor \u003c\/strong\u003eMack, \u003cspan style=\"font-size: 0.875rem;\"\u003eVolvo trucks, \u003c\/span\u003eFreightliner, Kenworth, Peterbilt, Navistar \/ International, typically Class 6–8 semi-trucks and fleet vehicles with air brake systems.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cstrong data-start=\"585\" data-end=\"597\"\u003ePurpose of using 2587185C91:\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp data-section-id=\"7ayefm\" data-start=\"209\" data-end=\"251\"\u003e\u003cstrong\u003e1. Provides instant hydraulic pressure\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"252\" data-end=\"336\"\u003eWhen the system suddenly needs pressure (like during hard braking), the accumulator:\u003c\/p\u003e\n\u003cul data-start=\"337\" data-end=\"439\"\u003e\n\u003cli data-section-id=\"1t7ezd9\" data-start=\"337\" data-end=\"386\"\u003e\n\u003cp data-start=\"339\" data-end=\"386\"\u003eReleases stored pressurized fluid immediately\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"lc2px4\" data-start=\"387\" data-end=\"439\"\u003e\n\u003cp data-start=\"389\" data-end=\"439\"\u003eReduces delay compared to relying only on a pump\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-section-id=\"1ewlrrn\" data-start=\"514\" data-end=\"554\"\u003e\u003cstrong\u003e2. Smooths out pressure fluctuations\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"555\" data-end=\"622\"\u003eHydraulic systems can have rapid pressure changes. The accumulator:\u003c\/p\u003e\n\u003cul data-start=\"623\" data-end=\"698\"\u003e\n\u003cli data-section-id=\"dc0lts\" data-start=\"623\" data-end=\"659\"\u003e\n\u003cp data-start=\"625\" data-end=\"659\"\u003eAbsorbs spikes (too much pressure)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1jb7cph\" data-start=\"660\" data-end=\"698\"\u003e\n\u003cp data-start=\"662\" data-end=\"698\"\u003eFills in drops (too little pressure)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-section-id=\"14k4lny\" data-start=\"755\" data-end=\"786\"\u003e\u003cstrong\u003e3. Reduces load on the pump\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"787\" data-end=\"843\"\u003eInstead of the pump constantly working at full capacity:\u003c\/p\u003e\n\u003cul data-start=\"844\" data-end=\"947\"\u003e\n\u003cli data-section-id=\"5xi6ba\" data-start=\"844\" data-end=\"905\"\u003e\n\u003cp data-start=\"846\" data-end=\"905\"\u003eThe accumulator stores excess pressure when demand is low\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1gv7enz\" data-start=\"906\" data-end=\"947\"\u003e\n\u003cp data-start=\"908\" data-end=\"947\"\u003eSupplies pressure when demand is high\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-section-id=\"1s8e5um\" data-start=\"1015\" data-end=\"1056\"\u003e\u003cstrong\u003e4. Supports repeated rapid operations\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"1057\" data-end=\"1113\"\u003eIn systems that cycle quickly (like ABS pulsing brakes):\u003c\/p\u003e\n\u003cul data-start=\"1114\" data-end=\"1233\"\u003e\n\u003cli data-section-id=\"yqhy3g\" data-start=\"1114\" data-end=\"1179\"\u003e\n\u003cp data-start=\"1116\" data-end=\"1179\"\u003eThe accumulator provides a steady supply of pressurized fluid\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"7y5gbg\" data-start=\"1180\" data-end=\"1233\"\u003e\n\u003cp data-start=\"1182\" data-end=\"1233\"\u003ePrevents pressure loss during rapid on\/off cycles\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-section-id=\"1sycx4j\" data-start=\"1240\" data-end=\"1278\"\u003e\u003cstrong\u003e5. Improves safety and reliability\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"1279\" data-end=\"1309\"\u003eEspecially in braking systems:\u003c\/p\u003e\n\u003cul data-start=\"1310\" data-end=\"1418\"\u003e\n\u003cli data-section-id=\"1n8foyr\" data-start=\"1310\" data-end=\"1363\"\u003e\n\u003cp data-start=\"1312\" data-end=\"1363\"\u003eEnsures consistent pressure even if demand spikes\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1673yq3\" data-start=\"1364\" data-end=\"1418\"\u003e\n\u003cp data-start=\"1366\" data-end=\"1418\"\u003eHelps maintain control during emergency situations\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp data-start=\"585\" data-end=\"703\"\u003e\u003cstrong data-start=\"585\" data-end=\"597\"\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSigns of Bad Accumulator For HCU - Reservoir 2587185C91:\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp data-section-id=\"1sfmj4u\" data-start=\"322\" data-end=\"358\"\u003e\u003cstrong\u003e1. ABS warning light comes on\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"359\" data-end=\"498\"\u003e\n\u003cli data-section-id=\"ho1dj0\" data-start=\"359\" data-end=\"407\"\u003e\n\u003cp data-start=\"361\" data-end=\"407\"\u003eOne of the earliest and most common symptoms\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1esyu49\" data-start=\"408\" data-end=\"457\"\u003e\n\u003cp data-start=\"410\" data-end=\"457\"\u003eThe system detects abnormal pressure behavior\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1utd1a\" data-start=\"458\" data-end=\"498\"\u003e\n\u003cp data-start=\"460\" data-end=\"498\"\u003eThe light may stay on or come and go\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-section-id=\"96bmwc\" data-start=\"505\" data-end=\"555\"\u003e\u003cstrong\u003e2. Poor or inconsistent braking performance\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"556\" data-end=\"690\"\u003e\n\u003cli data-section-id=\"139ybnb\" data-start=\"556\" data-end=\"652\"\u003e\n\u003cp data-start=\"558\" data-end=\"579\"\u003eBrake pedal may feel:\u003c\/p\u003e\n\u003cul data-start=\"582\" data-end=\"652\"\u003e\n\u003cli data-section-id=\"1vvhy53\" data-start=\"582\" data-end=\"621\"\u003e\n\u003cp data-start=\"584\" data-end=\"621\"\u003e\u003cstrong data-start=\"584\" data-end=\"592\"\u003eHard\u003c\/strong\u003e (not enough pressure assist)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"13p9sy6\" data-start=\"624\" data-end=\"652\"\u003e\n\u003cp data-start=\"626\" data-end=\"652\"\u003e\u003cstrong data-start=\"626\" data-end=\"652\"\u003eSpongy or inconsistent\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1q7lrx6\" data-start=\"653\" data-end=\"690\"\u003e\n\u003cp data-start=\"655\" data-end=\"690\"\u003eBraking response may feel delayed\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-section-id=\"1ng5l98\" data-start=\"697\" data-end=\"731\"\u003e\u003cstrong\u003e3. ABS not working properly\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"732\" data-end=\"752\"\u003eDuring hard braking:\u003c\/p\u003e\n\u003cul data-start=\"753\" data-end=\"856\"\u003e\n\u003cli data-section-id=\"54cwqo\" data-start=\"753\" data-end=\"798\"\u003e\n\u003cp data-start=\"755\" data-end=\"798\"\u003eWheels may \u003cstrong data-start=\"766\" data-end=\"777\"\u003elock up\u003c\/strong\u003e instead of pulsing\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1k7bf97\" data-start=\"799\" data-end=\"856\"\u003e\n\u003cp data-start=\"801\" data-end=\"856\"\u003eOr ABS may activate \u003cstrong data-start=\"821\" data-end=\"856\"\u003etoo aggressively or erratically\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-section-id=\"fa5kj\" data-start=\"863\" data-end=\"911\"\u003e\u003cstrong\u003e4. Pump running too often or continuously\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"912\" data-end=\"1050\"\u003e\n\u003cli data-section-id=\"wrdxzf\" data-start=\"912\" data-end=\"984\"\u003e\n\u003cp data-start=\"914\" data-end=\"984\"\u003eThe hydraulic pump runs more than normal trying to maintain pressure\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"19x9nn9\" data-start=\"985\" data-end=\"1050\"\u003e\n\u003cp data-start=\"987\" data-end=\"1050\"\u003eYou might hear a \u003cstrong data-start=\"1004\" data-end=\"1026\"\u003ebuzzing or humming\u003c\/strong\u003e sound more frequently\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-section-id=\"1mrq73o\" data-start=\"1129\" data-end=\"1157\"\u003e\u003cstrong\u003e5. Rapid pressure loss\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1158\" data-end=\"1281\"\u003e\n\u003cli data-section-id=\"1n2gj1k\" data-start=\"1158\" data-end=\"1209\"\u003e\n\u003cp data-start=\"1160\" data-end=\"1209\"\u003eSystem can’t hold pressure after the pump stops\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"l5vz0n\" data-start=\"1210\" data-end=\"1281\"\u003e\n\u003cp data-start=\"1212\" data-end=\"1221\"\u003eLeads to:\u003c\/p\u003e\n\u003cul data-start=\"1224\" data-end=\"1281\"\u003e\n\u003cli data-section-id=\"5th7jj\" data-start=\"1224\" data-end=\"1249\"\u003e\n\u003cp data-start=\"1226\" data-end=\"1249\"\u003eFrequent pump cycling\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"19q3o9q\" data-start=\"1252\" data-end=\"1281\"\u003e\n\u003cp data-start=\"1254\" data-end=\"1281\"\u003eReduced system efficiency\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-section-id=\"1jf3rgn\" data-start=\"1288\" data-end=\"1329\"\u003e\u003cstrong\u003e6. Fluid or internal failure signs\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1330\" data-end=\"1520\"\u003e\n\u003cli data-section-id=\"ejb0u3\" data-start=\"1330\" data-end=\"1397\"\u003e\n\u003cp data-start=\"1332\" data-end=\"1397\"\u003eIn some designs, the accumulator has a gas charge (like nitrogen)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1qozuqq\" data-start=\"1398\" data-end=\"1520\"\u003e\n\u003cp data-start=\"1400\" data-end=\"1412\"\u003eIf it fails:\u003c\/p\u003e\n\u003cul data-start=\"1415\" data-end=\"1520\"\u003e\n\u003cli data-section-id=\"q9trrk\" data-start=\"1415\" data-end=\"1464\"\u003e\n\u003cp data-start=\"1417\" data-end=\"1464\"\u003eIt loses its ability to compress\/store energy\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"8qxfn\" data-start=\"1467\" data-end=\"1520\"\u003e\n\u003cp data-start=\"1469\" data-end=\"1520\"\u003eThe system behaves like it has \u003cstrong data-start=\"1500\" data-end=\"1520\"\u003eno buffer at all\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp data-start=\"97\" data-end=\"476\"\u003e\u003cstrong data-start=\"97\" data-end=\"151\"\u003e\u003cbr\u003eAbout the Manufacturer – Wabco:\u003c\/strong\u003e\u003cbr data-start=\"151\" data-end=\"154\"\u003e\u003cstrong data-start=\"0\" data-end=\"9\"\u003eWABCO\u003c\/strong\u003e (originally the\u003cstrong\u003e \u003c\/strong\u003eWestinghouse Air Brake Company) is a global leader in vehicle control systems for commercial vehicles such as trucks, buses, and trailers. Founded in 1869 and later becoming a part of ZF Friedrichshafen AG in 2020, WABCO is best known for pioneering advanced braking, stability, and suspension technologies.\u003cbr\u003e\u003c\/p\u003e","brand":"Wabco","offers":[{"title":"Default Title","offer_id":50612454162679,"sku":"2587185C91","price":999.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0895\/7080\/3959\/files\/57.jpg?v=1774032312","url":"https:\/\/forcetruckparts.com\/products\/2587185c91-genuine-wabco%c2%ae-kit-accumulator-for-hcu-reservoir","provider":"Force Truck Parts","version":"1.0","type":"link"}