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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
$218.00
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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
$78.00
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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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Case 850 and 855 dozer and crawler loader rock guards designed to protect the undercarriage from debris, packed mud, and rock damage. This category fits Case 850B, 850C, 850D, 850E, 850G, 850H, 850K (select guards), and 855C, 855D, 855E machines, including 5-roller and 6-roller undercarriage configurations where specified. Coverage includes complete rock guard sets, front guards, center guards, rear guards, inner covers, spacers, and mounting hardware.

These Case 850/855 rock guards help prevent material buildup between the track chain, rollers, and frame, reducing premature wear on rollers, idlers, sprockets, and track links. Properly installed guards improve undercarriage life and reduce downtime in forestry, demolition, land clearing, and rocky soil conditions.

Fits:
850B
850C
850D (Standard & LT)
850E
850G
850H
855C
855D
855E

Common Repair Issues

  • Bent or missing track guards

  • Excessive debris packing in roller frame

  • Premature roller and idler wear

  • Broken or rusted guard mounting bolts

  • Worn center guard plates on 5- or 6-roller frames

Parts Covered in This Category

  • Complete rock guard sets (5-roller & 6-roller undercarriage)

  • Front left and right track guards

  • Center track guards (left, right, and single-piece styles)

  • Rear left and right outer guards

  • Rear inner track covers

  • Rear end covers (LT models)

  • Track guard spacers

  • Track guard spacer bolt and nut kits

Rock guard sets are available for both standard and long track (LT) machines, with model-specific coverage such as 850B/850C/850D 5-roller configurations and 850D LT, 850E, 850G, and 850H 6-roller frames. Individual replacement guards allow targeted repairs without replacing a full set.

Key Notes:

Application: Undercarriage protection for Case 850 and 855 dozers and crawler loaders.
Coverage: 5-roller and 6-roller frames, including LT configurations where specified.
Function: Prevents debris buildup and protects rollers, idlers, and track chains.
Installation: Uses model-specific spacers and bolt kits for correct alignment and clearance.
Made In / Brands: Varies by part.

Why Choose Broken Tractor:

✅ Complete Rock Guard Sets & Individual Panels
✅ Exact Fit for 5 & 6 Roller Frames
✅ Heavy-Duty Steel Construction

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