{"product_id":"21465235-genuine-volvo®-i-shift-slave-cylinder-clutch","title":"21465235 | Genuine Volvo® I-Shift Slave Cylinder Clutch","description":"\u003cp\u003e\u003cstrong\u003eDescription:\u003cbr\u003e\u003c\/strong\u003eAn I-Shift slave cylinder clutch \u003cstrong\u003e21465235 \u003c\/strong\u003eis a hydraulic component used in trucks equipped with the Volvo I-Shift transmission system.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e: \u003cspan\u003e21465235\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003cspan\u003e: New\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003eManufacture\/Brand\u003c\/strong\u003e\u003cspan\u003e: Volvo\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003cstrong data-end=\"176\" data-start=\"160\"\u003e\u003c\/strong\u003e\u003cstrong\u003eFits \u003cspan\u003e21465235 \u003c\/span\u003e\u003c\/strong\u003eFor \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 models such as FH, FM, FMX, FL series (various years) used with hydraulic clutch or I-Shift systems, \u003cspan class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\"\u003e\u003cspan class=\"whitespace-normal\"\u003eRenault Trucks\u003c\/span\u003e\u003c\/span\u003e vehicles including C, D, K, Kerax, Magnum, Premium series, \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\u003c\/p\u003e\n\u003cul class=\"nav catalog\" id=\"catalogModels\"\u003e\u003c\/ul\u003e\n\u003cp data-end=\"353\" data-start=\"160\"\u003e\u003cstrong\u003ePurpose of using \u003cspan\u003e21465235\u003c\/span\u003e:\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-end=\"363\" data-start=\"328\"\u003e\u003cstrong\u003e1. Automate Clutch Operation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-end=\"539\" data-start=\"364\"\u003eThe slave cylinder receives hydraulic commands from the truck’s electronic control system and physically moves the clutch release mechanism.\u003cbr data-end=\"507\" data-start=\"504\"\u003eThis allows the transmission to:\u003c\/p\u003e\n\u003cul data-end=\"640\" data-start=\"540\"\u003e\n\u003cli data-end=\"570\" data-start=\"540\"\u003e\n\u003cp data-end=\"570\" data-start=\"542\"\u003eStart smoothly from a stop\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"600\" data-start=\"571\"\u003e\n\u003cp data-end=\"600\" data-start=\"573\"\u003eShift gears automatically\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"640\" data-start=\"601\"\u003e\n\u003cp data-end=\"640\" data-start=\"603\"\u003eControl clutch engagement precisely\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"677\" data-start=\"647\"\u003e\u003cstrong\u003e2. Improve Driving Ease\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-end=\"817\" data-start=\"678\"\u003eUsed in trucks from \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 and \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, I-Shift eliminates the clutch pedal.\u003c\/p\u003e\n\u003cp data-end=\"828\" data-start=\"819\"\u003eBenefits:\u003c\/p\u003e\n\u003cul data-end=\"920\" data-start=\"829\"\u003e\n\u003cli data-end=\"852\" data-start=\"829\"\u003e\n\u003cp data-end=\"852\" data-start=\"831\"\u003eLess driver fatigue\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"884\" data-start=\"853\"\u003e\n\u003cp data-end=\"884\" data-start=\"855\"\u003eEasier operation in traffic\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"920\" data-start=\"885\"\u003e\n\u003cp data-end=\"920\" data-start=\"887\"\u003eConsistent shifting performance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"959\" data-start=\"927\"\u003e\u003cstrong\u003e3. Protect the Drivetrain\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-end=\"1029\" data-start=\"960\"\u003eBecause the system controls clutch engagement electronically, it can:\u003c\/p\u003e\n\u003cul data-end=\"1118\" data-start=\"1030\"\u003e\n\u003cli data-end=\"1063\" data-start=\"1030\"\u003e\n\u003cp data-end=\"1063\" data-start=\"1032\"\u003ePrevent excessive clutch wear\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1088\" data-start=\"1064\"\u003e\n\u003cp data-end=\"1088\" data-start=\"1066\"\u003eReduce missed shifts\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1118\" data-start=\"1089\"\u003e\n\u003cp data-end=\"1118\" data-start=\"1091\"\u003eMinimize drivetrain shock\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"1159\" data-start=\"1125\"\u003e\u003cstrong\u003e4. Increase Fuel Efficiency\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-end=\"1313\" data-start=\"1160\"\u003eThe system chooses optimal shift points and controls clutch engagement precisely, helping improve fuel economy compared to inconsistent manual operation.\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp data-end=\"353\" data-start=\"160\"\u003e\u003cstrong data-end=\"597\" data-start=\"585\"\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSigns of a Bad I-Shift Slave Cylinder Clutch \u003cspan\u003e21465235\u003c\/span\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=\"236\" data-end=\"269\"\u003e\u003cstrong\u003e1. Jerky or Rough Shifting\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"270\" data-end=\"361\"\u003e\n\u003cli data-start=\"270\" data-end=\"294\"\u003e\n\u003cp data-start=\"272\" data-end=\"294\"\u003eHard gear engagement\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"295\" data-end=\"328\"\u003e\n\u003cp data-start=\"297\" data-end=\"328\"\u003eTruck lurches when taking off\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"329\" data-end=\"361\"\u003e\n\u003cp data-start=\"331\" data-end=\"361\"\u003eHarsh upshifts or downshifts\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"363\" data-end=\"442\"\u003eThe slave cylinder may not be applying smooth hydraulic pressure to the clutch.\u003c\/p\u003e\n\u003cp data-start=\"449\" data-end=\"483\"\u003e\u003cstrong\u003e2. Truck Won’t Move in Gear\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"484\" data-end=\"588\"\u003e\n\u003cli data-start=\"484\" data-end=\"514\"\u003e\n\u003cp data-start=\"486\" data-end=\"514\"\u003eTransmission shows “Drive”\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"515\" data-end=\"554\"\u003e\n\u003cp data-start=\"517\" data-end=\"554\"\u003eEngine revs, but truck doesn’t move\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"555\" data-end=\"588\"\u003e\n\u003cp data-start=\"557\" data-end=\"588\"\u003eFeels like clutch is slipping\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"590\" data-end=\"660\"\u003eThis can happen if the slave cylinder isn’t fully engaging the clutch.\u003c\/p\u003e\n\u003cp data-start=\"667\" data-end=\"692\"\u003e\u003cstrong\u003e3. Clutch Slipping\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"693\" data-end=\"797\"\u003e\n\u003cli data-start=\"693\" data-end=\"738\"\u003e\n\u003cp data-start=\"695\" data-end=\"738\"\u003eRPM increases without corresponding speed\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"739\" data-end=\"763\"\u003e\n\u003cp data-start=\"741\" data-end=\"763\"\u003eBurning clutch smell\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"764\" data-end=\"797\"\u003e\n\u003cp data-start=\"766\" data-end=\"797\"\u003ePoor pulling power under load\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"799\" data-end=\"851\"\u003eImproper clutch engagement can cause excessive wear.\u003c\/p\u003e\n\u003cp data-start=\"858\" data-end=\"889\"\u003e\u003cstrong\u003e4. Hydraulic Fluid Leaks\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"890\" data-end=\"1009\"\u003e\n\u003cli data-start=\"890\" data-end=\"932\"\u003e\n\u003cp data-start=\"892\" data-end=\"932\"\u003eFluid around transmission bell housing\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"933\" data-end=\"969\"\u003e\n\u003cp data-start=\"935\" data-end=\"969\"\u003eLow clutch hydraulic fluid level\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"970\" data-end=\"1009\"\u003e\n\u003cp data-start=\"972\" data-end=\"1009\"\u003eVisible wetness near slave cylinder\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1011\" data-end=\"1053\"\u003eA leaking internal seal is common failure.\u003c\/p\u003e\n\u003cp data-start=\"1060\" data-end=\"1094\"\u003e\u003cstrong\u003e5. Transmission Fault Codes\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"1095\" data-end=\"1107\"\u003eYou may see:\u003c\/p\u003e\n\u003cul data-start=\"1108\" data-end=\"1213\"\u003e\n\u003cli data-start=\"1108\" data-end=\"1143\"\u003e\n\u003cp data-start=\"1110\" data-end=\"1143\"\u003e“Transmission Service Required”\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1144\" data-end=\"1169\"\u003e\n\u003cp data-start=\"1146\" data-end=\"1169\"\u003eClutch actuator codes\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1170\" data-end=\"1213\"\u003e\n\u003cp data-start=\"1172\" data-end=\"1213\"\u003eGear position or clutch position errors\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1215\" data-end=\"1274\"\u003eThe I-Shift system monitors clutch movement electronically.\u003c\/p\u003e\n\u003cp data-start=\"1281\" data-end=\"1322\"\u003e\u003cstrong\u003e6. Difficulty Starting From a Stop\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1323\" data-end=\"1421\"\u003e\n\u003cli data-start=\"1323\" data-end=\"1345\"\u003e\n\u003cp data-start=\"1325\" data-end=\"1345\"\u003eDelayed engagement\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1346\" data-end=\"1379\"\u003e\n\u003cp data-start=\"1348\" data-end=\"1379\"\u003eTruck hesitates before moving\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1380\" data-end=\"1421\"\u003e\n\u003cp data-start=\"1382\" data-end=\"1421\"\u003eFeels like it’s fighting to grab gear\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=\"97\" data-end=\"476\"\u003e\u003cstrong data-start=\"97\" data-end=\"151\"\u003e\u003cbr\u003eAbout the Manufacturer – Volvo:\u003c\/strong\u003e\u003cbr data-start=\"151\" data-end=\"154\"\u003eVolvo is a Swedish multinational company known for manufacturing premium commercial vehicles, including trucks, buses, and construction equipment. Founded in 1927, Volvo is recognized globally for its commitment to safety, innovation, and environmental sustainability. The brand focuses on producing reliable, fuel-efficient, and technologically advanced trucks that serve industries such as transportation, logistics, and construction. Volvo's dedication to quality and cutting-edge technology has made it a trusted name in the heavy-duty vehicle market worldwide.\u003cbr\u003e\u003c\/p\u003e","brand":"Volvo","offers":[{"title":"Default Title","offer_id":50529456652535,"sku":"21465235","price":899.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0895\/7080\/3959\/files\/21580956-genuine-mack-clutch-cylinder-advanced-truck-parts-49938.webp?v=1772473767","url":"https:\/\/forcetruckparts.com\/products\/21465235-genuine-volvo%c2%ae-i-shift-slave-cylinder-clutch","provider":"Force Truck Parts","version":"1.0","type":"link"}