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D8 14a corrner bit identification

Discussion in 'Dozers' started by ZGrant231, Dec 14, 2021.

  1. ZGrant231

    ZGrant231 Well-Known Member

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    Both my local dealer and caterpillar customer care are unable to find the corner bits i need for my ex military 14A, #9A1872. When I bring a picture in of the vin tag 9A1872 the kid behind the counter says that vin doesn't exist.
    I send the picture to caterpillar customer care and they are unable to locate it as well, But old magnet can find the 14A number equipment without breaking a sweat... so I give them old magnets information of 14A3861 and up direct drive and they tell me they need the "actual VIN" to obtain the correct part. So frustrating!

    I'm hopeful some one can help me out finding these corner bits and hardware part numbers.

    Screenshot_20211214-132339_Chrome.jpg Screenshot_20211214-132531_Photos.jpg 20200921_144351.jpg
     

    Attached Files:

  2. Old Magnet

    Old Magnet Senior Member

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    I'm kind of guessing here with no blade s/n but normal 8S blade for the 14A is a 44Cxxxx s/n. Uses a 3G8311/2 Right and left end bit 7-bolt 1J6761 and 2J3506 nut using the latest (not original numbers)
     
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  3. Nige

    Nige Senior Member

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    3G-8311/3G-8312 are replaced by 4T-6671 (RH) & 4T-6672 (LH) respectively.
    Below are the measurements. Hopefully that will help you confirm if they are the correct ones.
    upload_2021-12-15_11-6-25.png
    upload_2021-12-15_11-10-7.png
     
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  4. ZGrant231

    ZGrant231 Well-Known Member

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    Looks to be different, as D and E are located in different positions.
     
  5. Nige

    Nige Senior Member

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    I suggest that you don’t take the drawing as gospel, it’s more an indication of what measurements are what. Try with your tape measure and see how they compare.

    If the measurements are different then post up a sketch of what you actually have.

    Alternatively if there is a Serial Number plate on the back RH upper corner of the blade that would help.
     
  6. Old Magnet

    Old Magnet Senior Member

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    I show the 3G units as being 1-1/8" thick and designated General Duty. The 4T units as Finishing not that it makes a huge difference.
     
  7. Nige

    Nige Senior Member

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    The 3G numbers are cancelled by Cat. They may be available aftermarket though.

    upload_2021-12-15_18-11-27.png
     
  8. Old Magnet

    Old Magnet Senior Member

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    Try "Regal"..
    3G8311.JPG 3G8312.JPG
     
  9. ZGrant231

    ZGrant231 Well-Known Member

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    CORPS OF ENGINEERS, U.S. ARMY
    N: SCART??ER (maybe scarteier) HOUSING
    ENG. 7 &8
    MAKE: PRECO INCORP
    MOD. RMP-5
    DATE MFD. 0/58
    NOM. BULLDOZER TR MTG (or MIG) CABLE GPR (or CPR)
    MAKE: CATERPILLAR
    MOD. 8S
     

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  10. Old Magnet

    Old Magnet Senior Member

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    If Preco Incorp is the manufacturer of the blade I have no idea where you would find the specifications. Hopefully it was built to Caterpillar 44Cxxxx specs.
     
  11. Nige

    Nige Senior Member

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    Based on the 3" between centres measurements shown on your original photo below the end bits on your blade are not the 3G or 4T ones we were talking about above. They are 4" between centres on the lower row of bolts.

    If you like I can have a poke around in my GET catalogue and see if anything comes up. I would need more info though, any or all of the measurements shown below would help. Also what diameter are the bolts.?

    upload_2021-12-17_11-38-9.png
     
    John Shipp likes this.
  12. JD955SC

    JD955SC Senior Member

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    The problem is the old stuff is not easily found in the SIS system (or isn’t in it at all) and takes digging. Your parts counter person is clearly not used to finding the older tractors and doesn’t recognize the old serial number formats.
     
  13. Nige

    Nige Senior Member

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    Problem is that 9A1872 (aka 09A01872) shows up as a D336 engine in either machine or industrial configuration, not a track-type tractor.

    In other news I may have found a couple of candidates for the end bits. If the OP wants to check these measurements against his end bits I think one of the possibilities on the attached page from the GET Handbook might fit. Slightly different sizes and thicknesses but all basically the same bolt hole pattern. Some use 7/8" bolts, others use 1" bolts.
     

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    John Shipp likes this.
  14. JD955SC

    JD955SC Senior Member

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    I had a serial number of something more modern the other day show up as an engine in SIS 2.0, and trying to force it to the machine didn’t work right. Still some in it at this point.
     
  15. Check Break

    Check Break Senior Member

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  16. mark rasmuson

    mark rasmuson New Member

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    makes a differance if its a strait blade or angle blade