{"product_id":"4008515000-genuine-wabco®-hydraulic-abs-modulator","title":"4008515000 | Genuine Wabco® Hydraulic ABS Modulator","description":"\u003cp\u003e\u003cstrong\u003eDescription:\u003c\/strong\u003e\u003cbr\u003eThe ABS Control Module\u003cstrong\u003e 4008515000 \u003c\/strong\u003eis the electronic brain of the vehicle’s Anti-Lock Brake System. Its main job is to monitor wheel speed and regulate brake pressure during hard or emergency braking to prevent wheel lock-up. \u003cbr\u003e\u003cstrong\u003e\u003cbr\u003ePart Number\u003cspan\u003e:\u003c\/span\u003e\u003c\/strong\u003e 4008515000\u003cbr\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003cspan\u003e: Remanufactured\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003eManufacture\/Brand\u003c\/strong\u003e\u003cspan\u003e: WABCO\u003cbr\u003e\u003c\/span\u003e\u003cstrong\u003e\u003cbr\u003eFits 4008515000 \u003c\/strong\u003eFor vehicles equipped with the WABCO SmartTrac hydraulic ABS system and is commonly cross-referenced by \u003cstrong data-end=\"245\" data-start=\"237\"\u003eMack\u003c\/strong\u003e and \u003cstrong data-end=\"259\" data-start=\"250\"\u003eVolvo\u003c\/strong\u003e.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e \n\u003cp data-end=\"491\" data-start=\"457\"\u003eThis module is typically found on:\u003c\/p\u003e\n\u003col data-end=\"874\" data-start=\"492\"\u003e\n\u003cli data-end=\"622\" data-start=\"492\" data-section-id=\"d3opeg\"\u003e\n\u003cspan class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\"\u003e\u003cspan class=\"whitespace-normal\"\u003eMack Trucks\u003c\/span\u003e\u003c\/span\u003e medium-duty and heavy-duty trucks equipped with hydraulic brakes and WABCO SmartTrac ABS.\u003c\/li\u003e\n\u003cli data-end=\"721\" data-start=\"623\" data-section-id=\"ktm7xf\"\u003e\n\u003cspan class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\"\u003e\u003cspan class=\"whitespace-normal\"\u003eVolvo Trucks\u003c\/span\u003e\u003c\/span\u003e trucks using the same SmartTrac hydraulic ABS\/ATC system.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003ePurpose of using 4008515000:\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cstrong\u003ePrevent Wheel Lock-Up\u003c\/strong\u003e\n\u003cp\u003e\u003cbr\u003eThe ABS module continuously monitors each wheel’s speed.\u003cbr\u003eIf it detects a wheel about to lock (stop spinning), it reduces brake pressure momentarily.\u003cbr\u003eThis keeps the wheel rotating and maintains traction with the road.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMaintain Steering Control\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBy preventing wheel lock-up, the driver can steer around obstacles even while braking hard.\u003cbr\u003eWithout ABS, locked wheels cause skidding and loss of directional control.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eImprove Stability on Slippery Surfaces\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe module adjusts braking force to each wheel independently.\u003cbr\u003eThis helps the vehicle stay straight and balanced on wet, icy, or uneven roads.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOptimize Brake Pressure\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIt regulates brake fluid pressure using solenoid valves and a hydraulic pump.\u003cbr\u003eThis results in shorter stopping distances and smoother braking under emergency conditions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCommunicate with Other Systems\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eModern ABS modules are integrated with:\u003cbr\u003eTraction Control System (TCS)\u003cbr\u003eElectronic Stability Control (ESC)\u003cbr\u003eHill-Start Assist\u003cbr\u003eThe module shares data with the engine and transmission control units to adjust power and braking for overall safety.\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSigns of Bad ABS Control Module 4008515000\u003c\/strong\u003e\u003cstrong\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\u003e\u003cstrong\u003e1. ABS Warning Light Is On\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe ABS light (or sometimes “Brake” or “Traction Control” light) stays illuminated on the dashboard.\u003cbr\u003eThis is the most common and earliest sign of a control module fault.\u003cbr\u003eDiagnostic scan will often show ABS-specific trouble codes like C0265, C0110, or U0121.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2. Brakes Lock Up Under Hard Braking\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIf the ABS module fails, the system can’t regulate brake pressure properly.\u003cbr\u003eYou might notice wheel lock-up during sudden stops — especially on slippery surfaces.\u003cbr\u003eThis defeats the purpose of the ABS system and increases stopping distance.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003e3. ABS Pump Runs Constantly (or Not at All)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA stuck internal relay or shorted circuit in the module can cause the ABS pump motor to run continuously, even with the key off.\u003cbr\u003eIn other cases, the pump might not activate at all, leading to no ABS function.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e4. Unresponsive or Pulsating Brake Pedal\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe brake pedal might feel unusually hard, soft, or pulsate abnormally during braking.\u003cbr\u003eSometimes the pedal sinks slowly to the floor due to poor hydraulic modulation.\u003cbr\u003eThese symptoms often indicate the module’s valve control system isn’t working correctly.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e5. Traction or Stability Control Lights On\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBecause the ABS module communicates with the traction control (TCS) and electronic stability control (ESC) systems,\u003cbr\u003ea fault in the ABS module can trigger those warning lights too.\u003cbr\u003eYou may lose features like traction assist, hill-start assist, or electronic stability control.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e6. Inconsistent Speedometer or Loss of Communication\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe ABS module reads data from wheel speed sensors.\u003cbr\u003eIf it fails, the speedometer may fluctuate or stop working, and the vehicle may store communication codes like U0121 – Lost Communication with ABS Module.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e7. Vehicle Goes into Limp or Fail-Safe Mode\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOn some vehicles, when the ABS module fails completely, the system may limit performance (limp mode) to protect the drivetrain and braking system.\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv class=\"_tableContainer_1rjym_1\"\u003e\n\u003cdiv class=\"group _tableWrapper_1rjym_13 flex w-fit flex-col-reverse\" tabindex=\"-1\"\u003e\n\u003cbr\u003e\u003cstrong data-end=\"151\" data-start=\"97\"\u003eAbout the Manufacturer – Wabco:\u003c\/strong\u003e\u003cbr data-end=\"154\" data-start=\"151\"\u003e\u003cstrong data-end=\"9\" data-start=\"0\"\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.\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Wabco","offers":[{"title":"Default Title","offer_id":50888258158839,"sku":"4008515000","price":1175.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0895\/7080\/3959\/files\/4008511500-3_tif.png?v=1782280590","url":"https:\/\/forcetruckparts.com\/products\/4008515000-genuine-wabco%c2%ae-hydraulic-abs-modulator","provider":"Force Truck Parts","version":"1.0","type":"link"}