Fleetguard CV50634 Crankcase Ventilation Filter OEM Cummins ISX ISM

Fleetguard CV50634 Crankcase Ventilation Filter — Genuine OEM Impactor Element for Cummins ISX & ISM Heavy-Duty Diesel Engines The Fleetguard CV50634 is a genuine Cummins Filtration crankcase ventilation (CCV) filter element with patented impactor technology, designed for Cummins ISX and ISM heavy-duty diesel engines in Class 8 trucks. This high-efficiency breather element separates aerosolized engine oil and crankcase blow-by particulates before they route back through the intake system, protecting your turbocharger and intercooler from oil fouling while reducing crankcase emissions. The CV50634 features Fleetguard's patented impactor variable unit design — a multi-stage filtration system that uses inertial separation to capture oil aerosol droplets with superior efficiency compared to conventional breather elements. The dual cylindrical filter media with molded support frame and perimeter sealing gaskets ensures a factory-correct fit in the crankcase ventilation housing on Freightliner, Kenworth, Peterbilt, International, Western Star, Volvo, Mack, and Oshkosh trucks powered by Cummins ISX and ISM engines. The CV50634 is interchangeable with the CV50633 (earlier revision) and replaces multiple older Fleetguard part numbers including CV50617, CV50031, CV50601, and CV50607. What's Included 1x Fleetguard CV50634 Crankcase Ventilation Filter Element Assembly — includes dual cylindrical filter media, molded support frame, and 2 attached perimeter sealing gaskets. Ready for installation. Vehicle Compatibility Truck Brand Models Years Freightliner Cascadia, Coronado, CC122, CC132 2008-2013+ Kenworth C500, T660, T680, T700, T800, W900 2008-2013+ Peterbilt 320, 357, 365, 367, 384, 386, 387, 388, 389, 579, 587 2008-2013+ International / Navistar ProStar, LoneStar, PayStar, 9900i 2008-2012+ Western Star 4700, 4800, 4900, 6900 2009-2013+ Volvo VNL Series (with Cummins ISX) 2008-2013+ Mack Pinnacle, Granite (with Cummins ISX) 2008-2013+ Oshkosh Various (with Cummins ISX) 2008-2011+ Spartan Motors Various chassis 2013+ American LaFrance Various 2008-2011 Compatible Engines: Cummins ISX 15.0L, ISX12, ISM Important: This filter is for Class 8 heavy-duty trucks with Cummins ISX/ISM engines. It is NOT for RAM pickup trucks — RAM pickups with the 6.7L ISB Cummins use the CV52001 (also available in our store). Verify your crankcase ventilation housing configuration before ordering — fitment varies by engine serial number and emissions configuration. Technical Specifications Specification Value Part Number CV50634 (also CV5063400, CV5063400MF) Brand Fleetguard (Cummins Filtration) Filter Type Crankcase Ventilation Filter — Impactor Variable Unit Technology Patented Impactor Inertial Separation Filter Media Dual Cylindrical High-Efficiency Media Construction Molded support frame with perimeter sealing gaskets Dimensions 282.6 x 227.0 x 67.5 mm (11.13 x 8.94 x 2.66 in) Gaskets 2 Attached Compatible Engines Cummins ISX, ISM Cummins OEM Number 4312013 (primary) Interchangeable With CV50633 Replaces CV50617, CV50031, CV50601, CV50607 Cross-Reference Part Numbers Cross-Reference Brand 4312013 Cummins (primary OEM) 4312011 Cummins 3685528 Cummins 3683918 Cummins 3691476 Cummins 3691687 Cummins CV50633 Fleetguard (interchangeable) CV50617 Fleetguard (superseded) CV50031 Fleetguard (superseded) CV50601 Fleetguard (superseded) CV50607 Fleetguard (superseded) CV50633FLG Fleetguard (alternate) CV15000 Baldwin WS10124 Wix 904-7904 Dorman 99340 — 220124 — CB57 — SAO16889 — SBL88055 — 45VH04 — CV50634 vs CV52001 — Which One Do You Need? Feature CV50634 (This Product) CV52001 (Also in Our Store) Engine Cummins ISX, ISM (heavy-duty) Cummins ISB 6.7L, B6.7 (pickup) Trucks Freightliner, Kenworth, Peterbilt, International, Western Star Dodge RAM 2500, 3500, 4500, 5500 Dimensions 282.6 x 227.0 x 67.5 mm Smaller — pickup truck housing Cummins OEM 4312013 4936636 Mopar Cross-Ref N/A 68002433AA, 68002433AB Application Class 8 heavy-duty trucks Light/medium-duty RAM pickups These are NOT interchangeable. The CV50634 will not fit a RAM pickup truck, and the CV52001 will not fit a Class 8 truck. When to Replace Replace at scheduled maintenance intervals — typically every 250,000-500,000 miles or when crankcase pressure exceeds specifications, oil consumption increases noticeably, or the low-power/high-crankcase-pressure fault codes appear. A clogged crankcase filter causes excessive crankcase pressure, leading to oil leaks at seals and gaskets, increased oil consumption, and reduced turbocharger performance. Why Choose Genuine Fleetguard CV50634? The CV50634's patented impactor technology provides superior aerosol separation compared to aftermarket breather elements. Cheap aftermarket CCV filters may allow oil aerosol to pass through to the intake, fouling the turbocharger and intercooler over time. Oil buildup in the intercooler reduces cooling efficiency and can cause detonation under load. The genuine Fleetguard impactor design uses inertial separation — a technology exclusive to Fleetguard — that captures oil droplets without restricting crankcase airflow. On Cummins ISX engines where turbo replacement costs $2,000-$4,000+, genuine Fleetguard crankcase filtration is essential preventive maintenance.