{"product_id":"n-34001-genuine-haldex®-maxibrake-hr-series-spring-brake-chamber","title":"N-34001 | Genuine Haldex® Maxibrake HR Series Spring Brake Chamber","description":"\u003cp\u003e\u003cstrong\u003eDescription:\u003c\/strong\u003e\u003cbr\u003eA Spring Brake Chamber \u003cstrong\u003eN-34001\u003c\/strong\u003e is an air-brake component used on heavy-duty trucks, buses, and trailers. It uses compressed air and a powerful internal spring to apply and release the brakes.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e: N-34001\u003cbr\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003cspan\u003e: New\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003eManufacture\/Brand\u003c\/strong\u003e\u003cspan\u003e: Haldex\u003cbr\u003e\u003cstrong\u003eRelated Part Numbers:\u003c\/strong\u003e N34001, N34001B, N34001M1D\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-end=\"353\" data-start=\"160\"\u003e\u003cstrong\u003e\u003cbr\u003eFits N-34001 \u003c\/strong\u003eFor\u003cstrong\u003e \u003c\/strong\u003eInternational, Freightliner, Peterbilt, Kenworth, Volvo, Mack, etc. vehicles that use Haldex MaxiBrake chambers\u003c\/p\u003e\n\u003cp data-end=\"703\" data-start=\"585\"\u003e\u003cstrong data-end=\"597\" data-start=\"585\"\u003ePurpose of using N-34001:\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-start=\"437\" data-end=\"476\"\u003e\u003cstrong\u003e1. Provide Parking Brake Function\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"477\" data-end=\"522\"\u003eInside the chamber is a very powerful spring.\u003c\/p\u003e\n\u003cul data-start=\"524\" data-end=\"640\"\u003e\n\u003cli data-start=\"524\" data-end=\"592\"\u003e\n\u003cp data-start=\"526\" data-end=\"592\"\u003eWhen air pressure is removed → The spring expands → Brakes apply\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"593\" data-end=\"640\"\u003e\n\u003cp data-start=\"595\" data-end=\"640\"\u003eThis holds the vehicle in place when parked\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"642\" data-end=\"713\"\u003eThis replaces a traditional handbrake system found in smaller vehicles.\u003c\/p\u003e\n\u003cp data-start=\"720\" data-end=\"766\"\u003e\u003cstrong\u003e2. Provide Emergency (Fail-Safe) Braking\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"767\" data-end=\"810\"\u003eAir brake systems depend on compressed air.\u003c\/p\u003e\n\u003cp data-start=\"812\" data-end=\"815\"\u003eIf:\u003c\/p\u003e\n\u003cul data-start=\"816\" data-end=\"897\"\u003e\n\u003cli data-start=\"816\" data-end=\"845\"\u003e\n\u003cp data-start=\"818\" data-end=\"845\"\u003eThere is a major air leak\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"846\" data-end=\"876\"\u003e\n\u003cp data-start=\"848\" data-end=\"876\"\u003eAir pressure drops too low\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"877\" data-end=\"897\"\u003e\n\u003cp data-start=\"879\" data-end=\"897\"\u003eThe system fails\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"899\" data-end=\"943\"\u003eThe spring automatically applies the brakes.\u003c\/p\u003e\n\u003cp data-start=\"945\" data-end=\"974\"\u003eThis prevents runaway trucks.\u003c\/p\u003e\n\u003cp data-start=\"981\" data-end=\"1015\"\u003e\u003cstrong\u003e3. Assist in Service Braking\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"1016\" data-end=\"1083\"\u003eThe spring brake chamber also contains a \u003cstrong data-start=\"1057\" data-end=\"1082\"\u003eservice brake section\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"1085\" data-end=\"1125\"\u003eWhen the driver presses the brake pedal:\u003c\/p\u003e\n\u003cul data-start=\"1126\" data-end=\"1217\"\u003e\n\u003cli data-start=\"1126\" data-end=\"1169\"\u003e\n\u003cp data-start=\"1128\" data-end=\"1169\"\u003eAir pressure enters the service chamber\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1170\" data-end=\"1191\"\u003e\n\u003cp data-start=\"1172\" data-end=\"1191\"\u003eThe pushrod moves\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1192\" data-end=\"1217\"\u003e\n\u003cp data-start=\"1194\" data-end=\"1217\"\u003eBrakes apply normally\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1219\" data-end=\"1238\"\u003eSo it handles both:\u003c\/p\u003e\n\u003cul data-start=\"1239\" data-end=\"1287\"\u003e\n\u003cli data-start=\"1239\" data-end=\"1257\"\u003e\n\u003cp data-start=\"1241\" data-end=\"1257\"\u003eNormal braking\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1258\" data-end=\"1287\"\u003e\n\u003cp data-start=\"1260\" data-end=\"1287\"\u003eParking\/emergency braking\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-end=\"703\" data-start=\"585\"\u003e\u003cstrong data-end=\"597\" data-start=\"585\"\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-end=\"703\" data-start=\"585\"\u003e\u003cstrong\u003eSigns of a Bad Spring Brake Chamber N-34001:\u003c\/strong\u003e\u003cstrong data-end=\"597\" data-start=\"585\"\u003e\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-start=\"360\" data-end=\"390\"\u003e\u003cstrong\u003e1. Air Leaks (Most Common)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"391\" data-end=\"494\"\u003e\n\u003cli data-start=\"391\" data-end=\"424\"\u003e\n\u003cp data-start=\"393\" data-end=\"424\"\u003eHissing sound near wheel area\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"425\" data-end=\"459\"\u003e\n\u003cp data-start=\"427\" data-end=\"459\"\u003eAir pressure drops when parked\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"460\" data-end=\"494\"\u003e\n\u003cp data-start=\"462\" data-end=\"494\"\u003eAir compressor runs more often\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"496\" data-end=\"515\"\u003eThis usually means:\u003c\/p\u003e\n\u003cul data-start=\"516\" data-end=\"583\"\u003e\n\u003cli data-start=\"516\" data-end=\"538\"\u003e\n\u003cp data-start=\"518\" data-end=\"538\"\u003eRuptured diaphragm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"539\" data-end=\"558\"\u003e\n\u003cp data-start=\"541\" data-end=\"558\"\u003eCracked housing\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"559\" data-end=\"583\"\u003e\n\u003cp data-start=\"561\" data-end=\"583\"\u003eFailed internal seal\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"590\" data-end=\"624\"\u003e\u003cstrong\u003e2. Parking Brake Won’t Release\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"625\" data-end=\"722\"\u003e\n\u003cli data-start=\"625\" data-end=\"675\"\u003e\n\u003cp data-start=\"627\" data-end=\"675\"\u003eTruck won’t move after releasing parking brake\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"676\" data-end=\"698\"\u003e\n\u003cp data-start=\"678\" data-end=\"698\"\u003eOne wheel dragging\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"699\" data-end=\"722\"\u003e\n\u003cp data-start=\"701\" data-end=\"722\"\u003eBurning brake smell\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"724\" data-end=\"733\"\u003eCould be:\u003c\/p\u003e\n\u003cul data-start=\"734\" data-end=\"811\"\u003e\n\u003cli data-start=\"734\" data-end=\"760\"\u003e\n\u003cp data-start=\"736\" data-end=\"760\"\u003eBroken internal spring\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"761\" data-end=\"779\"\u003e\n\u003cp data-start=\"763\" data-end=\"779\"\u003eSeized pushrod\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"780\" data-end=\"811\"\u003e\n\u003cp data-start=\"782\" data-end=\"811\"\u003eInternal mechanical failure\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"818\" data-end=\"850\"\u003e\u003cstrong\u003e3. Brakes Drag While Driving\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"851\" data-end=\"926\"\u003e\n\u003cli data-start=\"851\" data-end=\"875\"\u003e\n\u003cp data-start=\"853\" data-end=\"875\"\u003eTruck feels sluggish\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"876\" data-end=\"905\"\u003e\n\u003cp data-start=\"878\" data-end=\"905\"\u003eOverheating wheel or drum\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"906\" data-end=\"926\"\u003e\n\u003cp data-start=\"908\" data-end=\"926\"\u003eUneven tire wear\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"928\" data-end=\"971\"\u003eThe spring side may not be fully releasing.\u003c\/p\u003e\n\u003cp data-start=\"978\" data-end=\"1003\"\u003e\u003cstrong\u003e4. Weak Parking Brake\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1004\" data-end=\"1074\"\u003e\n\u003cli data-start=\"1004\" data-end=\"1042\"\u003e\n\u003cp data-start=\"1006\" data-end=\"1042\"\u003eVehicle rolls slightly when parked\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1043\" data-end=\"1074\"\u003e\n\u003cp data-start=\"1045\" data-end=\"1074\"\u003eDoesn’t hold well on a hill\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1076\" data-end=\"1089\"\u003eMay indicate:\u003c\/p\u003e\n\u003cul data-start=\"1090\" data-end=\"1182\"\u003e\n\u003cli data-start=\"1090\" data-end=\"1125\"\u003e\n\u003cp data-start=\"1092\" data-end=\"1125\"\u003eWeak or damaged internal spring\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1126\" data-end=\"1154\"\u003e\n\u003cp data-start=\"1128\" data-end=\"1154\"\u003eExcessive pushrod stroke\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1155\" data-end=\"1182\"\u003e\n\u003cp data-start=\"1157\" data-end=\"1182\"\u003eBrake adjustment issues\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1189\" data-end=\"1220\"\u003e\u003cstrong\u003e5. Excessive Pushrod Travel\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1221\" data-end=\"1316\"\u003e\n\u003cli data-start=\"1221\" data-end=\"1272\"\u003e\n\u003cp data-start=\"1223\" data-end=\"1272\"\u003ePushrod extends too far when brakes are applied\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1273\" data-end=\"1316\"\u003e\n\u003cp data-start=\"1275\" data-end=\"1316\"\u003eFails DOT inspection stroke measurement\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1318\" data-end=\"1336\"\u003eThis can indicate:\u003c\/p\u003e\n\u003cul data-start=\"1337\" data-end=\"1389\"\u003e\n\u003cli data-start=\"1337\" data-end=\"1362\"\u003e\n\u003cp data-start=\"1339\" data-end=\"1362\"\u003eWorn brake components\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1363\" data-end=\"1389\"\u003e\n\u003cp data-start=\"1365\" data-end=\"1389\"\u003eInternal chamber issue\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1396\" data-end=\"1426\"\u003e\u003cstrong\u003e6. Visible Physical Damage\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1427\" data-end=\"1506\"\u003e\n\u003cli data-start=\"1427\" data-end=\"1455\"\u003e\n\u003cp data-start=\"1429\" data-end=\"1455\"\u003eRusted or dented chamber\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1456\" data-end=\"1477\"\u003e\n\u003cp data-start=\"1458\" data-end=\"1477\"\u003eBroken clamp band\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1478\" data-end=\"1506\"\u003e\n\u003cp data-start=\"1480\" data-end=\"1506\"\u003eCorrosion around housing\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1508\" data-end=\"1554\"\u003eSevere rust can weaken the chamber housing.\u003c\/p\u003e\n\u003cp data-start=\"1561\" data-end=\"1606\"\u003e\u003cstrong\u003e7. Sudden Lock-Up While Driving (Serious)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"1607\" data-end=\"1638\"\u003eIf air pressure drops suddenly:\u003c\/p\u003e\n\u003cul data-start=\"1639\" data-end=\"1712\"\u003e\n\u003cli data-start=\"1639\" data-end=\"1679\"\u003e\n\u003cp data-start=\"1641\" data-end=\"1679\"\u003eSpring brake may apply automatically\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1680\" data-end=\"1712\"\u003e\n\u003cp data-start=\"1682\" data-end=\"1712\"\u003eTruck may decelerate rapidly\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1714\" data-end=\"1813\"\u003eThis is a safety feature, but if it happens unexpectedly, the chamber or air system may be failing.\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp data-end=\"476\" data-start=\"97\"\u003e\u003cstrong data-end=\"151\" data-start=\"97\"\u003e\u003cbr\u003eAbout the Manufacturer – Haldex:\u003c\/strong\u003e\u003cbr data-end=\"154\" data-start=\"151\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHaldex\u003c\/strong\u003e is a global leader in the design and manufacture of advanced brake and air suspension systems for commercial vehicles. Founded in Sweden, Haldex specializes in producing reliable, high-quality components such as air compressors, brake valves, and coupling systems that enhance vehicle safety and performance. Known for innovation and durability, Haldex products are widely used in trucks, trailers, buses, and heavy machinery worldwide.\u003c\/p\u003e","brand":"Haldex","offers":[{"title":"Default Title","offer_id":50531822436599,"sku":"N-34001","price":1499.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0895\/7080\/3959\/files\/photo_2026-03-03_10-24-20.jpg?v=1772560170","url":"https:\/\/forcetruckparts.com\/products\/n-34001-genuine-haldex%c2%ae-maxibrake-hr-series-spring-brake-chamber","provider":"Force Truck Parts","version":"1.0","type":"link"}