Case 850 & 855 Dozer Track Parts

Case 850 and 855 dozer and loader track parts for rebuilding complete undercarriage systems, correcting track tension problems, and replacing worn guards and drive components. This category fits Case 850, 850B, 850C, 850D, 850E, 850G, 850H, 850K, 850L, 850M, plus 855C, 855D, and 855E machines where noted. Coverage includes rock guards, track adjuster and recoil spring parts, and undercarriage wear components like sprockets, rollers, idlers, track shoes, and hardware. These Case 850/855 track parts are designed to restore proper sprocket engagement, idler alignment, and undercarriage protection across standard, LT, LGP, WT, XLT, and serial-specific configurations.

Fits:
850, 850B, 850C
850D, 850E, 850G, 850H
850K, 850L, 850M
855C, 855D, 855E

Common Repair Issues

• Loose or uneven track tension

• Worn sprocket teeth or poor chain engagement

• Flat-spotted or leaking bottom rollers

• Bent or missing track guards/rock guards

• Uneven track shoe wear and broken hardware

• Idler and guide plate wear causing misalignment

Parts Covered in This Category

• Rock guard sets (5-roller and 6-roller)

• Front, center, and rear track guards and end covers

• Track guard spacers and spacer bolt kits

• Complete track tension adjusters (standard and 5-roller kits)

• Recoil assemblies and recoil spring components

• Track adjuster rods, tubes, and idler yokes

• Track adjuster seal kits

• Drive sprockets (standard, LGP/wide track, long track/XLT)

• Top rollers and top roller brackets

• Bottom rollers (single and double flange)

• Track idlers and idler shafts

• Track idler wear kits and guide plates

• Track shoes and track shoe bolt kits

These Case 850/855 track parts are manufactured for factory-style fit across multiple undercarriage layouts (including 5-roller vs 6-roller), track frame gauges, and serial number breaks (such as 850D/855D sprocket fitment before Serial #JAK0002254). Track shoe coverage includes common widths and configurations for standard, LT, LGP, and WT machines. USA-made options are available on select spacer/extension components where noted.

Key Notes:

Application: Complete track system coverage for Case 850 and 855 dozers and crawler loaders.
Coverage: Standard, LT, LGP, WT, XLT configurations with model- and serial-specific fitment where noted.
Material/Build: Heavy-duty steel components for drive, support, and undercarriage protection.
Function: Restores track tension, alignment, traction, and reduces debris-related undercarriage wear.
Made In / Brands: USA-made options available on select parts; varies by part.

Why Choose Broken Tractor:

✅ Model-Specific Parts for 850/855 Variants
✅ Exact-Fit Options for 5 & 6 Roller Frames
✅ Heavy-Duty Wear & Protection Components