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3871711 Cummins Engine Solenoid Valve Dcec Cummins Parts

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3871711 Cummins Engine Solenoid Valve Dcec Cummins Parts
  • 3871711

  • Cummins

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Expiration   Date (U.S. and Canada): –Expiration Date   (International): –
EngineFuelPlantBuild Date
FamilySystemFromTo
NH-LB, N14, NTCELECTDefault1-Jan-991-Jun-99
NH-LB, N14, NTCELECT   PlusDefault1-Jan-991-Jun-99
L10CELECTDefault1-Jan-991-Jun-99
M11, ISM, QSM11CELECTDefault1-Jan-991-Jun-99
M11, ISM, QSM11CELECT   PlusDefault1-Jan-991-Jun-99
M11, ISM, QSM11ISMDefault1-Jan-991-Jun-99
Design ApplicationMarket   Application
C Brake  by Jacobs Solenoid Issue

This  note identifies the fix for a common C Brake by Jacobs problem identified on  N14, M11, and ISM engines built during a 5 month period beginning 01Jan1999,  and ending 31May1999.
A design  issue with the solenoid has caused C Brake by Jacobs performance problems for  N14, M11, and ISM engines. The customer complaint is that the brakes feel  sluggish and appear to hang up (or stay engaged after the brake is  deactivated). These symptoms typically occur regardless of oil  temperature, not just  during initial activation after cold start-up. However, cold oil conditions  can aggravate the problem due to increased oil viscosity.
The  common symptoms are the result of a solenoid sticking issue. Jacobs corrected  the problem by implementing a design change that entered production on  01Jun1999. A slotted sleeve was added internally to the solenoid. This sleeve  allows a more rapid escape of oil from the solenoid, which improves the  response time. Table 1 summarizes the part numbers affected by the design  change.

Table 1:  Solenoid Part Numbers Affected by the Slotted Sleeve Design Change
EngineBrake ModelPart Number*Description
N14455  A or B387170712  V Single Lead
N14455  A or B387170824  V Single Lead
N14455  A or B387170924  V Dual Lead
ISM411  C387170712  V Single Lead
M11, ISM, QSM11411387171112  V Dual Lead
M11, ISM, QSM11411387170824  V Single Lead
M11, ISM, QSM11411387170924  V Dual Lead


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