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What is this transmission X designation

Discussion in 'Ask An Owner Operator' started by Marmon110P, Jan 10, 2026.

  1. Jan 10, 2026 #1
    Marmon110P

    Marmon110P Light Load Member

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    Im looking at buying an RTLO16913AX. Ive never seen the X designation before. Does anyone know what it means?
     
    Marmon110P, Jan 10, 2026
    Marmon110P, Jan 10, 2026
    #1
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  3. Jan 10, 2026 #2
    Star Rider

    Star Rider Road Train Member

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    upload_2026-1-10_21-21-59.jpeg
     
    Star Rider, Jan 10, 2026
    Star Rider, Jan 10, 2026
    #2
    MACK E-6 and Oxbow Thank this.
  4. Jan 10, 2026 #3
    Marmon110P

    Marmon110P Light Load Member

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    The chart doesnt mention anything about an X suffix
     
    Marmon110P, Jan 10, 2026
    Marmon110P, Jan 10, 2026
    #3
    MAMservices, Lonesome, Diesel Dave and 1 other person Thank this.
  5. Jan 10, 2026 #4
    062

    062 Road Train Member

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    Does it have a X on the tag?
    Could be something a rebuilder did.
     
    062, Jan 10, 2026
    062, Jan 10, 2026
    #4
    Star Rider Thanks this.
  7. Jan 10, 2026 #5
    Marmon110P

    Marmon110P Light Load Member

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    Yes, I can't figure if how to add pics here...ohh here we go!
     

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    Marmon110P, Jan 10, 2026
    Marmon110P, Jan 10, 2026
    #5
  8. Jan 11, 2026 #6
    Ridgeline

    Ridgeline Road Train Member

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    The X means it is an Eaton rebuilt unit. They put the X there so there is no mistaking a rebuild.
     
    Ridgeline, Jan 11, 2026
    Ridgeline, Jan 11, 2026
    #6
    Lonesome, Marmon110P and Cdemars316 Thank this.
  9. Jan 14, 2026 #7
    Marmon110P

    Marmon110P Light Load Member

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    So we just ran into a snag. The eaton transmission i bought has a bellhousing for a hydraulic clutch. What are the chances that the tranny will bolt up to the meritor bell housing? Or am I gonna be on the hunt for an older eaton bellhousing?
     
    Marmon110P, Jan 14, 2026
    Marmon110P, Jan 14, 2026
    #7
  10. Jan 15, 2026 #8
    Ridgeline

    Ridgeline Road Train Member

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    Call Eaton and ask them.
     
    Ridgeline, Jan 15, 2026
    Ridgeline, Jan 15, 2026
    #8
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