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Case 850 & 855 Rock Guards

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Case 850 & 855 Rock Guards parts list
Image Fits Model Description Part # Price Product Details
Case PV645 track rock guard set 5 roller undercarriage See Details 850B, 850C, 850D, 855C, 855D* Rock Guard Set (5-Roller) PV645
From $3,625.00
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Rock guard kit for Case 750H 6 roller undercarriage See Details 750H, 850D Long Track, 850E, 850G, 850H Rock Guard Set (6-Roller) PV646
From $3,792.00
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Front Left-Hand Guard for Case 750H, 850H Dozers & 855E Crawlers See Details 750H, 850D LT, 850E, 850G, 850H, 855D, 855E Front Left Track Guard R56620
$258.00
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Front Right-Hand Guard for Case 750H, 850H Dozers & 855E Crawlers See Details 750H, 850B, 850C, 850D, 850E, 850G, 850H, 855C, 855D, 855E Front Right Track Guard R56629
$283.00
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Left-Hand Front Track Guard Case 750K See Details 750K, 850K Front Left Track Guard 419377A1
$259.00
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Right-Hand Front Track Guard Case 750K See Details 750K, 850K Front Right Track Guard 419378A1
$259.00
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Case 850B center track guard R52343 See Details 850B, 850C, 850D, 855C, 855D Center Track Guard R52343
$359.00
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Case 850D LT center track guard left R55833 See Details 750H, 850D LT, 850E, 850G, 850H, 855D, 855E Center Track Guard (Left) R55833
$396.00
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Case 850D LT center track guard right R55832 See Details 750H, 850D LT, 850E, 850G, 850H, 855D, 855E Center Track Guard (Right) R55832
$396.00
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Case Dozer Rear Left Track Guard See Details 850B, 850C, 850D, 855C, 855D Rear Left Guard R52339
$242.00
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Case 850B Rear Right Track Guard | R52340 See Details 850B, 850C, 850D, 855C, 855D Rear Right Guard R52340
$224.00
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Case 850D rear left guard R56633 See Details 650, 650G, 650H, 750H, 850B, 850C, 850D, 850E, 850G, 850H, 855C, 855D, 855E Rear Left Guard R56633
$242.00
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Case 850D LT rear right track guard R56646 See Details 750H, 850D LT, 850E, 850G, 850H, 855D, 855E Rear Right Track Guard R56646
$242.00
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Case Dozer Rear Left Inner Track Cover -- R44467 | Broken Tractor See Details 850B, 850C, 850D, 855C, 855D Track Cover (Rear Left Inner) R44467
$75.00
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Case Rear Right Inner Track Guard | R44468 See Details 850B, 850C, 850D, 855C, 855D Track Guard, Rear Right Inner R44468
$78.00
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Case 850B Rear Left Track Guard | R54464 See Details 850B, 850C, 850D, 855C, 855D Track Guard, Rear Left Outer R54464
$87.00
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Case 850B Rear Right Outer Track Guard | R54465 See Details 850B, 850C, 850D, 855C, 855D Track Guard, Rear Right Outer R54465
$74.00
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Case 850D LT, 850E, 850G, 850H Dozer Rear Track Guard Cover -- R56637 See Details 750H, 850D LT, 850E, 850G, 850H, 855D, 855E Rear End Cover R56637
$87.00
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Case track guard spacer bolt 413-12152 See Details 750H, 850D LT, 850E, 850G, 850H, 855D, 855E Track Guard Spacer Bolt & Nut 413-12152
$28.00
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Case track guard spacer D35698 See Details 750H, 850D LT, 850E, 850G, 850H, 855D, 855E Track Guard Spacer D35698
$32.00
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Track rock guards, spacers, and inner and outer track covers for Case 850 and 855 series dozers, covering front, center, and rear guard positions across 5-roller and 6-roller undercarriage configurations.

Fits Models At A Glance

  • 850 Series: 850B, 850C, 850D, 850D LT, 850E, 850G, 850H, 850K
  • 855 Series: 855C, 855D, 855E

Key Notes

  • Application: Shield the undercarriage and track components from rocks and debris
  • Positions: Front, center, and rear guards in left and right variants
  • Coverage: Includes inner and outer track covers, spacers, and mounting hardware
  • Configurations: Fits both 5-roller and 6-roller track setups

Why Choose Broken Tractor

  • ✅ Guards matched to correct roller configurations
  • ✅ Fast shipping from two US locations
  • ✅ Knowledgeable support for Case dozer fitment

Frequently Asked Questions

Do I need the 5-roller or 6-roller rock guard set for my Case 850?

It depends on your undercarriage configuration. The Track Rock Guard Set SKU PV645 fits 5-roller setups on the 850B, 850C, 850D, 855C, and 855D, while the Track Rock Guard Set SKU PV646 fits 6-roller setups on the 750H, 850D Long Track, 850E, 850G, and 850H. Count your track rollers or confirm your machine's configuration before ordering.

What track guard positions does Broken Tractor carry for the Case 850 and 855?

We carry front, center, and rear track guards in both left and right variants for Case 850 and 855 series dozers. This includes inner and outer rear track covers, center guards, spacers, and the spacer bolt hardware. Match the position and side to the guard you are replacing.

Which front track guard fits a Case 850K dozer?

The Case 850K uses the Front Left-Hand Guard SKU 419377A1 and the Front Right-Hand Guard SKU 419378A1, both listed for 750K and 850K dozers. The K-series front guards are separate from the front guards used on earlier 850 models, so verify your model before ordering.

Will the rear track guards for a Case 850B also fit a 855C?

Yes, the Rear Left Track Guard SKU R52339 and Rear Right Track Guard SKU R52340 are both listed to fit the 850B, 850C, 850D, 855C, and 855D. The matching outer guards SKU R54464 and R54465 and inner covers SKU R44467 and R44468 share the same fitment. Confirm the side and inner or outer position for your machine.

Do I need spacers and mounting hardware with my Case 850 track guards?

Broken Tractor offers the Track Guard Spacer SKU D35698 and the Track Guard Spacer Bolt with Nut SKU 413-12152, both listed for the 850D LT, 850E, 850G, 850H, 855D, and 855E. If your guards mount with spacers, order these alongside the guard to complete the installation. Match part numbers to your setup or confirm fitment with our parts team.

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Product: Category: Case 850 & 855 Rock Guards Brand: Head Title: Case 850 & 855 Rock Guards | Broken Tractor