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Case 850 & 855 Undercarriage Parts

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Case 850 & 855 Undercarriage Parts parts list
Image Fits Model Description Part # Price Product Details
5 Track Drive Sprocket for Case 850B Dozers, 25 Teeth See Details 850B, 850C, 855C, (850D, 855D Before Serial # JAK0002254) Sprocket R52597
From $348.00
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5 Case Loader and Dozer Track Drive Sprocket by Broken Tractor- R56464 See Details 650, 650G, 650H, 750H, 850D*, 855D*, 850E, 855E, 850G, 850H Sprocket R56464
$315.00
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5 Long Track Dozer Drive Sprocket for Case 650K-LT See Details 650K-LT, 750K-LT, 750L-LT, 750M-LT, 850K-XLT, 850L-XLT, 850M-LT, D95-LT, D95B-LT, DC75-LT, DC85-LT, DC95-LT Sprocket (Long Track, XLT) 404060A1
$515.00
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6 Case 850C LGP dozer track drive sprocket R53117 See Details 850C LGP, 850D LGP* Sprocket (LGP) R53117
From $628.00
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6 Wide Track Sprocket for Case 850H-LGP, R56535 See Details 750H-LGP, 750H-WT. 850D-LGP, 850E-LGP, 850G-LGP, 850H-LGP Sprocket (LGP, Wide Track) R56535
$427.00
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6 403555A1 Wide Track Dozer Drive Sprocket for Case 650K-LGP, 25 Tooth See Details 650K-LGP, 650K-WT, 750K-LGP, 750K-WT, 750L-LGP, 750L-WT, 750M-LGP, 750M-WT, 850K-LGP, 850K-WT, 850L-LGP, 850L-WT, 850M-LGP, 850M-WT, D95-LGP, D95-WT, D95B-LGP, D95B-WT, DC75-LGP, DC75-WT, DC85-LGP, DC85-WT, DC95-LGP, DC95-WT Sprocket (LGP, Wide Track) 403555A1
$455.00
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1 Case Dozer New Front Idler Spring Kit 650 103384A1 See Details 650, 650G, 750H, 750K, 750L, 850, 850B, 850C, 850D, 850E, 850G, 850H, 850K, 850L, 850M, 855C, 855D, 855E Track Idler Wheel 103384A1
From $994.00
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2 Top track roller for Case dozer undercarriage See Details 450, 450B, 450C, 550, 650, 750, 850, 855, 1150, DC75, DC85, DC95, D95B, 880 Top Track Roller R33965
$175.00
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3 Case Dozer Single-Flange Bottom Track Roller by Broken Tractor See Details 650, 650G, 750, 750H, 750K, 750L, 850, 850B, 850C, 850D, 850E, 850G, 850H, 850K, 850L, 850M, 855C, 855D, 855E Bottom Track Roller (Single Flange) R56593
$248.00
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3 R56874 Case Dozer Double Flange Bottom Track Roller by Broken Tractor See Details 650, 650G, 750, 750H, 750K, 750L, 850, 850B, 850C, 850D, 850E, 850G, 850H, 850K, 850L, 850M, 855C, 855D, 855E Bottom Track Roller, Double Flange R56874
$285.00
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Case Dozer Track Idler Wear Kit by Broken Tractor See Details 650, 650G, 650H, 750H, 850, 850B, 850C, 850D, 850E, 850G, 850H, 855C, 855D, 855E Wear Kit, Track Idler 144393A3
$74.00
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Case Dozer and Crawler Loader Track Idler Guide Plate by Broken Tractor See Details 650, 650G, 650H, 750H, 850, 850B, 850C, 850D, 850E, 850G, 850H, 855C, 855D, 855E Guide Plate, Track Idler R45570
$43.00
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Track Master Pin for Case 650G, 650H, 750H, 750K, 750L Models See Details 850, 850B, 850C, 850D, 850E, 850G, 850H, 850K, 850L, 650, 650G, 650H, 750H, 750K, 750L Track Master Pin Kit CR4875
$38.00
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Case 850C Dozer Track Idler Shaft See Details 850C, 850D, 855C, 855D Track Idler Shaft R46824
$98.00
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18" Single Grouser Track Shoe for Case 750, 850 & 1150 Dozers See Details 750, 850, 850B, 850C, 850C-LGP, 850D, 850D-LGP, 850D-LT, 1150 Track Shoe (18" Single Grouser) CA756/18
$46.00
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20" Single Grouser Track Shoe for Case 750, 850 & 1150 Dozers (CA756/20) See Details 750, 850, 850B, 850C, 850C-LGP, 850D (Before Serial Number JAK0002253), 850D-LGP (Before Serial Number JAK0002253), 850D-LT (1st Type), 1150 (After Serial Number 7109000) Track Shoe (20" Single Grouser) CA756/20
$45.00
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16" Single Grouser Track Shoe for Case 650, 750 & 850 Dozers See Details 650H, 650K-LGP, 650K-WT, 750H-LGP, 750H-LT, 750K-LT, 750L-LT, 750M-LT, 850G-LT, 850H-LT, 850H-WT, 850K-XLT Track Shoe (16" Single Grouser) CA853/16
$49.00
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18" Single Grouser Track Shoe for Case 650–850 Crawler Dozers (CA853/18) See Details 650H, 650K-LGP, 650K-LT, 650K-WT, 750H-LGP, 750H-LT, 750K-LGP, 750K-LT, 750K-WT, 750L-LGP, 750L-LT, 750L-WT, 750M-LT, 850G-LT, 850H-LT, 850H-WT, 850K-XLT, 850L-LGP, 850L-WT, 850L-XLT, 850M-LT, D85B-WT 18" Track Shoe CA853/18
$52.00
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24" Single Grouser Track Shoe for Case 650–850 Crawler Dozers See Details 650H-LGP, 650K-LGP, 650K-LT, 650K-WT, 750H-LGP, 750H-WT, 750K-LGP, 750K-LT, 750K-WT, 750L-LGP, 750L-LT, 750L-WT, 750M-LGP, 750M-WT, 850G-LGP, 850G-LT, 850H-LGP, 850H-WT, 850K-LGP, 850K-WT, 850L-LGP, 850L-WT, 850M-LGP, 850M-WT, D85B-WT Track Shoe (24" Single Grouser) CA853/24
$70.00
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28" Single Grouser Track Shoe for Case 650–850 LGP Dozers See Details 650H-LGP, 650K-LGP, 650K-WT, 750H-LGP, 750H-WT, 750K-LGP, 750K-WT, 750L-LGP, 750L-WT, 750M-LGP, 850G-LGP, 850H-LGP, 850K-LGP, 850L-LGP, 850M-LGP, D85B-WT 28" Track Shoe CA853/28
$82.00
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16" Single Grouser Track Shoe for Case 650 & 850 Dozers See Details 650, 650G, 850D 2nd Type (After Serial Number JAK0002254), 850D-LT 2nd Type (After Serial Number JAK0002254), 850E-LT, 850G-LT First Type Track Shoe (16" Single Grouser) CA880/16
$40.00
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18" Single Grouser Track Shoe for Case 650 & 850 Dozers See Details 650, 650G, 850D (2nd Type - After Serial Number JAK0002254), 850D-LT (2nd Type - After Serial Number JAK0002254), 850E-LT, 850G-LT (First Type) Track Shoe (18" Single Grouser) CA880/18
$46.00
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24" Single Grouser Track Shoe for Case 850 Dozers See Details 850D (2nd Type, After Serial Number JAK0002254), 850D-LGP (2nd Type, After Serial Number JAK0002254), 850D-LT (2nd Type, After Serial Number JAK0002254), 850E-LGP, 850E-LT, 850G-LGP (First Type), 850G-LT (First Type) Track Shoe (24" Single Grouser) CA880/24
$64.00
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29" Single Grouser Track Shoe for Case 850D-G LGP Dozers See Details 850D-LGP (2nd Type), 850E-LGP, 850G-LGP (First Type) 29" Track Shoe CA880/29
$76.00
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24" Single Grouser Track Pad for Case Dozers See Details 850M-WT 24" Track Shoe CR4358/24
$64.00
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28" Single Grouser Track Shoe for Case Dozers See Details 850M-WT 28" Track Shoe CR4358/28
$75.00
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Track shoe bolt kit for Case 850 dozer See Details 750, 850, 850B, 850C, 850C-LGP, 850D, 850D-LGP, 850D-LT, 1150* Track Shoe Bolt Kit CA756BK
$9.00
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4 Case Dozer Bottom Roller Bolt 1D4609 See Details 650, 650G, 750, 750H, 750K, 750L, 850, 850B, 850C, 850D, 850E, 850G, 850H, 850K, 850L, 850M, 855C, 855D, 855E Bolt, Bottom Roller 1D4609
$2.00
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Torsion bar front equalizer lever for Case 850 dozer D39631 See Details 850 Pin, Torsion Bar Equalizer Lever D39631
$64.00
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Case 850 1150 dozer suspension lower link pin D35848 — Made in USA See Details 850, 1150 Suspension Lower Link Pin D35848
$82.00
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Case 650 850 855 dozer idler spacer plate R45568 — Made in USA See Details 650, 650G, 650H, 750H, 850, 850B, 850C, 850D, 850E, 850G, 850H, 855C, 855D, 855E, 850, 850B, 850C, 850D, 850E, 850G, 850H, 855C, 855D, 855E Idler Spacer Plate R45568
$31.00
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Replacement undercarriage parts for Case 850 and 855 series crawler dozers, covering track rollers, idlers, drive sprockets, master pins, single grouser track shoes, and track shoe hardware across standard, LGP, wide track, and long track configurations.

Fits Models At A Glance

  • 850 Series: 850, 850B, 850C, 850D, 850E, 850G, 850H, 850K, 850L, 850M
  • 850 Configurations: 850C LGP, 850D LGP, 850E LGP, 850G LGP, 850H LGP, 850K XLT, 850L XLT, 850M LT/WT
  • 855 Series: 855C, 855D, 855E

Key Notes

  • Application: Full undercarriage coverage including rollers, idlers, sprockets, and track shoes
  • Track Shoes: Single grouser widths from 16 inch through 29 inch
  • Serial Breaks: Several sprockets and shoes split before and after serial JAK0002254
  • Configurations: Standard, LGP, wide track, and long track options available

Why Choose Broken Tractor

  • ✅ Deep undercarriage inventory for Case crawler dozers
  • ✅ Fast shipping from two US locations
  • ✅ Fitment help by serial number and configuration

Frequently Asked Questions

How do I know which track drive sprocket fits my Case 850D or 855D?

Case 850D and 855D dozers split at serial number JAK0002254, so the correct sprocket depends on your serial number. We carry SKU R52597 for 850C and 855C plus 850D and 855D before serial JAK0002254, and SKU R56464 for 850D and 855D machines built after that break. Match your serial number to the fitment or confirm with the Broken Tractor parts team before ordering.

What size single grouser track shoes are available for a Case 850 dozer?

Broken Tractor carries single grouser track shoes for Case 850 series dozers in widths from 16 inch through 29 inch. Standard, LGP, wide track, and long track configurations are covered, including 18 inch (SKU CA756/18) and 20 inch (SKU CA756/20) for earlier 850 through 850C machines. Wider LGP shoes such as the 24 inch (SKU CA880/24) and 29 inch (SKU CA880/29) fit 850D, 850E, and 850G LGP models.

Do the track shoes for a Case 850D depend on the serial number?

Yes, Case 850D track shoes split at serial number JAK0002254. The 20 inch shoe (SKU CA756/20) fits 850D built before that serial, while the 16 inch (SKU CA880/16), 18 inch (SKU CA880/18), and 24 inch (SKU CA880/24) shoes fit 850D 2nd Type machines built after JAK0002254. Check your serial number against the fitment to order the right shoe.

What is the difference between a single flange and double flange bottom roller for a Case 850 dozer?

Both bottom rollers fit Case 850 through 850M and 855C through 855E dozers, but they mount in different positions along the track frame. Broken Tractor carries the single flange bottom roller (SKU R56593) and the double flange bottom roller (SKU R56874). Refer to your undercarriage layout to confirm which position needs which roller before ordering.

Which track drive sprocket fits a Case 850 LGP dozer?

For Case 850C LGP and early 850D LGP dozers, Broken Tractor carries SKU R53117. For later LGP machines including 850D LGP, 850E LGP, 850G LGP, and 850H LGP, we offer SKU R56535. Match your model and configuration to the fitment listed for each sprocket, and contact the parts team if you are unsure.

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Product: Category: Case 850 & 855 Undercarriage Parts Brand: Head Title: Case 850 & 855 Undercarriage Parts | Broken Tractor