SMB-180 – Crankcase Breather Element – New Flyer Low Floor

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NHTSA ID Number: 10144750

Manufacturer Communication Number: SMB180


This Service Manual Bulletin Provides Updated Preventive Maintenace Interval for the Crankcase Breather Tube Element on Buses Equipped with a Cummins Diesel ISL 07 or ISL 09 Engine.


163 Affected Products


NEW FLYER D35LF 1995-2010
NEW FLYER D35LFR 2007, 2009-2012
NEW FLYER D40LF 1994-2010
NEW FLYER D40LFR 2005-2013
NEW FLYER D60LF 1998-2000, 2002-2009
NEW FLYER D60LFA 2006, 2008-2009
NEW FLYER D60LFR 2002-2013
NEW FLYER DE35LF 2005, 2007-2010
NEW FLYER DE35LFR 2007, 2010-2011
NEW FLYER DE40LF 2004-2010
NEW FLYER DE40LFA 2008-2010
NEW FLYER DE40LFR 2006-2011
NEW FLYER DE60LF 2004-2006, 2008-2010
NEW FLYER DE60LFA 2005-2007, 2009-2011
NEW FLYER DE60LFR 2004, 2007-2013
NEW FLYER XD35 2010-2019
NEW FLYER XD40 2010-2019
NEW FLYER XD60 2012-2018
NEW FLYER XDE40 2009-2018
NEW FLYER XDE60 2013-2019



ISSUE DATE: August 17, 2018

Crankcase Breather Element

PM – Preventive Maintenance

This bulletin provides corrected Preventive Maintenace Interval for the crankcase breather element on your New Flyer vehicle.

This bulletin applies to vehicles with a Cummins ISL 07 or ISL 09 engine.

This information supersedes any prior information on this subject already provided in your New Flyer Service Manuals. Make this Service Bulletin available to service personnel to inform them of changed information.


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“This site contains affiliate links for which OEMDTC may be compensated”
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Fleetguard Crankcase Ventilation Filter Engine Breather Element|Replacement For Cummins ISC, ISL, ISX12G Engines, 2008-2010 Acterra, L7500, L8500, LT7500, LT8500|Replace OE#: CV50628, 904-7902
  • 【REPLACEMENT】If your vehicle leaks oil, high idle speed, engine performance declines, etc., a failed crankcase filter might be the problem. This Cummins breather filter element is manufactured to the OE specification to provide factory-fresh appearance and direct-fit, exactly OEM design to replace your defective filter.
  • 【LONG LIFE-SPAN】Long life-span matters, that is why the housing of our cummins ventilation filter is crafted from reinforce material, features high resistance against temperatures and better durability, meanwhile effectively remove oil vapor and restore good driving performance.
  • 【REPLACES#】CV50628, 904-7902, 5263190. Please make sure the part number before purchase! The Cummins crankcase filter has been tested to ensure trouble-free installation and performance.
  • 【REPLACEMENT FOR】Cummins ISC 07 Engines, Cummins ISC 8.3 Engines, 2007-2009 Cummins ISM Engines, Cummins ISL 07 Diesel Engine, Cummins ISL 9 Diesel Engine, Cummins ISL Diesel Engine, Cummins ISX12G Diesel Engine, 2008-2010 Acterra 8.3L l6 Engine, 2008-2010 L7500 6.4L l6 Engine, 2008-2010 L7500 7.2L l6 Engine, 2008-2010 L7500 8.3L l6 Engine, 2008-2010 L8500 8.3L l6 Engine, 2009-2010 L8500 8.9L l6 Engine, 2008 LT7500 8.3L l6 Engine, 2008 LT8500 8.3L l6 Engine.
  • 【AFTER-SALES SERVICE 】 If for any reason at all, you are not fully satisfied with the Cummins crankcase diesel element, you can contact us through amazon message for carefree REPLACEMENT or REFUND.
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LUFT MEISTAR 3973228 4921431 Injection Fuel Pump Compatible with Cummins ISC 8.3L, ISL 8.9L,4903462 5594760 2897500 4954200 87351412
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YESAY Exhaust Manifold 3964070 & 3937477 Compatible with Cummins Engine 8.3 8.9 8.3C QSC ISC ISL QSL L8.9
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Lamerto Injection Fuel Pump Replacement for Cummins ISC 8.3L, ISL 8.9L # 4903462 4921431 5594760 3973228 3975375
  • 【Item Name】: Injection Fuel Pump Replacement for Cummins ISC 8.3L, ISL 8.9L.
  • 【OEM Part Number】: 3973228, 3975375, 4088864, 408866NX, 4935674, 84493585R, 8449358466, 84493585, 87351412, 87351467R, 87697131, 84493584, 87351467, 87351478, 87351478EX, 5311171, 4088643NX, 5594760, 4921431, 4903462, 4921431NX.
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CV50628 Crankcase Ventilation Filter, Compatible with Cummins ISC, ISL, ISX12G Engines, 2008-2010 Acterra, L7500, L8500, LT7500, LT8500. Replace: 5263190, 4937499, 4939749
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  • 【Fitment】: Highfil CV50628 Cummins Crankcase Ventilation Filter Compatible with various vehicles with the following Engines: Cummins ISC 07 Engines, Cummins ISC 8.3 Engines, Cummins ISM Engines, 2007-2009 Cummins ISM Engines, Cummins ISL Engines, Cummins ISL 07 Diesel Engine, Cummins ISL 9 Diesel Engine, Cummins ISL Diesel Engine, Cummins ISX Engine, Cummins ISX12G Diesel Engine.
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