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JD 750J-850L Dozer Final Drive Parts

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JD 750J-850L Dozer Final Drive Parts parts list
Image Fits Model Description Part # Price Product Details
Final drive planetary gear pin for John Deere dozer See Details 750J, 750K, 850J, 850K Pin, Final Drive Planetary Gear T200202
$170.00
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Final Drive Planetary Gear for John Deere 850J, 850K Dozers See Details 850J, 850J-II, 850K Planetary Gear, Final Drive T216995
$950.00
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1 John Deere Pinion Shaft, 13T, for 850J LGP See Details 850J LGP*, 850K LGP, 850L LGP Pinion Shaft, Final Drive T394701
$1,173.00
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John Deere Pinion Shaft, 13T, for 750J STD/LT s/n 162860-, 750K STD/LT, 750L XLT Dozer, 655K Crawler Loader See Details 750J STD/LT s/n 162860-, 750K STD/LT, 750L XLT Dozer, 655K Crawler Loader Pinion Shaft, 13T T394697
$1,150.00
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John Deere Pinion Shaft, 12T, for 850J STD/LT s/n -164780 Dozer See Details 850J STD/LT s/n -164780 Pinion Shaft, 12T T215930
$1,150.00
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JD Pinion Shaft, 12T, for 850J WT/WLT s/n -165123 Dozer See Details 850J WT/WLT s/n -165123 Pinion Shaft, 12T T215927
$1,150.00
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John Deere 750J Dozer Bull Gear Assembly by Broken Tractor See Details 750J, 750K, 850J, 850K Bull Gear, 79T T218792
$3,016.00
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John Deere 850J Dozer Spring Assembly by Broken Tractor See Details 850J, 850K Track Recoil Spring Assembly AT313629
From $3,349.00
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Planetary Pinion Shaft (12T) for JD 750J–750L Dozers & 655K Loader See Details 750J, 750K, 750L, 655K Planetary Pinion Shaft T215926
$1,173.00
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Final Drive Sun Gear for JD 750J–750L Dozers & 655K Loader See Details 750J, 750K, 750L, 655K Planetary Sun Gear T394703
$1,106.00
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Final Drive Planetary Gear (29T) for JD 750J–750L Dozers & 655K Loader See Details 750J, 750K, 750L, 655K Planetary Gear T394705
$922.00
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Final Drive for John Deere 850J, 850JR, 850K, 850L Dozers (Wide Long Track, Left Hand) See Details 850J, 850JR, 850K, 850L Final Drive AT352357
From $24,900.00
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JD 750J, 850J Dozer Final Drive Bearing Seal Rebuild Kit | Broken Tractor See Details 750J, 850J Final Drive Bearing and Seal Kit PV745
$3,492.00
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JD Dozer Final Drive Bearing and Seal Kit | Broken Tractor See Details 750J-II, 750K, 750L, 850J-II, 850K, 850L, 655K, 755K Final Drive Bearing and Seal Kit PV744
$3,020.00
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John Deere Dozer Final Drive Bull Gear See Details 750J*, 750J-II, 750K, 750L, 850J*, 850J-II, 850K, 850L Final Drive Bull Gear (79 Teeth) T394702
$3,016.00
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John Deere Dozer Final Drive Bull Gear -- T141823 | Broken Tractor See Details 750J*,850J* Final Drive Bull Gear (73 Teeth) T141823
$3,016.00
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Pinion Shaft (13Teeth, 15 Spline) for JD 850J, 850J-II, 850K Dozers See Details 850J, 850J-II, 850K, 755K, 755P Pinion Shaft T394699
$1,173.00
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Final Drive Sun Gear for JD 850J–850L Dozers See Details 850J, 850J-II, 850K, 850L Final Drive Sun Gear T394704
$1,109.00
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Metal Face Seal & Spacer Rings for JD 750J–850J Dozers See Details 750J, 850J Rings, Metal Face Seal and Spacer AT374827
$1,055.00
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Duo Cone Axle Seal for John Deere Dozers - Final Drive Component See Details 750J-STD/LT/WT/LGP, 750J-II, 750K, 750L-STD/XLT/LGP, 850J STD, LT, WLT, LGP, 850J-II, 655K, 755K, 850K, 850L Axle Seal, Duo Cone AT505275
$499.00
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Final Drive Pinion Shaft (12Teeth) for JD 850J Dozers See Details JD 850J Before Serial # 163374 Pinion Shaft (12 Teeth) T215928
$1,235.00
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Planetary Gear Pin for JD 750J–850L Dozers See Details 750J, 750J-II, 750K, 750L, 850J, 850J-II, 850K, 850L (ALL MODEL VARIATIONS) Planetary Gear Pin T372247
$170.00
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Final Drive Bearing & Race for JD 750J–1050K Dozers & 655K/755K Loaders See Details 655K, 750J, 750J-II, 750K, 755K, 750L, 850J, 850J-II, 850K, 850L, 1050K Bearing and Race, Final Drive AT390577
$152.00
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Planetary Thrust Bearing & Race for JD 750–850 Dozers & 655K/755K Loaders See Details 750J, 750J-II, 750K, 750L, 850J, 850J-II, 850K, 850L, 655K, 755K Thrust Bearing and Race, Final Drive Planetary DE18556
$235.00
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Final Drive Hub Gear for JD 850J–850L Dozers See Details 850J, 850J-II, 850K, 850L Hub Gear T200201
$2,930.00
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Final drive components for John Deere 750 and 850 series crawler dozers, including bull gears, sun gears, planetary gears, pinion shafts, bearing and seal kits, and complete final drive assemblies for J, K, and L generation machines.

Fits Models At A Glance

  • 750 Series: 750J, 750J-II, 750K, 750L
  • 850 Series: 850J, 850JR, 850J-II, 850K, 850L

Key Notes

  • Application: Final drive gear train, planetary assemblies, and axle seals for track drive systems
  • Gearing: Bull gears offered in 73T and 79T tooth counts to match specific configurations
  • Pinion Shafts: Varied by tooth count, spline, and serial number breaks - verify machine s/n before ordering
  • Sealing: Duo cone and metal face seals plus full bearing and seal rebuild kits available

Why Choose Broken Tractor

  • ✅ Correct fitment matched by serial number and configuration
  • ✅ Fast shipping from two US locations
  • ✅ New and used final drive parts available

Frequently Asked Questions

Which bull gear tooth count do I need for a John Deere 750J or 850J dozer?

Broken Tractor carries final drive bull gears in both 73 tooth and 79 tooth configurations for the 750 and 850 series. The correct tooth count depends on your machine's specific final drive setup, so verify your configuration before ordering. For example, we offer a 79T, 41 spline bull gear (SKU T394702) and a 73T bull gear (SKU T141823) that fit 750J and 850J models.

How do I choose the right pinion shaft for an 850J dozer?

Pinion shafts vary by tooth count, spline, and serial number break, so you must confirm your machine's serial number before ordering. For the 850J we carry several options, including a 12T shaft for machines before serial 163374 (SKU T215928), a 12T shaft for 850J WT/WLT s/n -165123 (SKU T215927), and a 13T, 15 spline shaft for 850J, 850J-II, and 850K (SKU T394699). Match the part number to your configuration or confirm with our parts team.

Does the pinion shaft differ between 750J standard and LGP dozers?

Yes, pinion shafts differ by machine configuration such as STD, LT, and LGP. For 750 series machines we offer a 13T shaft for 750J STD/LT s/n 162860-, 750K STD/LT, and 750L XLT (SKU T394697), while LGP 850 machines use a separate pinion shaft (SKU T394701). Confirm your serial number and track configuration to select the correct part.

What is included in a final drive bearing and seal kit for a 750J or 850J dozer?

Broken Tractor offers bearing and seal rebuild kits for the final drive, including a kit for 750J and 850J standard and LGP machines (SKU PV745) and a kit covering 750J-II, 750K, 750L, 850J-II, 850K, and 850L (SKU PV744). We also carry individual sealing components such as the duo cone axle seal (SKU AT505275) and metal face seals and spacer rings (SKU AT374827).

Can I buy a complete final drive assembly for an 850J dozer instead of rebuilding it?

Yes, Broken Tractor offers complete final drive assemblies as well as individual components. We carry a wide long track, left hand final drive for 850J, 850JR, 850K, and 850L dozers (SKU AT352357). If you prefer to rebuild, we also stock the bull gears, sun gears, planetary gears, pinion shafts, and bearing and seal kits needed for the job.

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Product: Category: JD 750J-850L Dozer Final Drive Parts Brand: Head Title: JD 750J-850L Dozer Final Drive Parts | Broken Tractor