Case 721E Tier 3 NA Wheel Loader Service Parts Catalogue

The Case 721E Tier 3 NA wheel loader spends its life in quarries, feed yards, and construction sites, loading trucks and feeding hoppers all day. This Service Parts Catalogue is what I use to pinpoint the exact components on your machine so we order the right parts the first time. Say the loader shows a hydraulic leak around a boom cylinder port—this book lets me trace that assembly, identify the correct seals, fittings, and hardware, and confirm they match your Tier 3 North American variant before I touch a wrench.

Applications & Use Cases

• Cross-check full exploded views to see how cylinders, linkages, and brackets stack together before disassembly.
• Isolate the correct hose, seal kit, or bushing when several similar options exist across revisions.
• Verify axle, transmission, and differential variants by comparing component layouts and part references.
• Identify small O-rings, shims, clips, and fasteners that are easy to miss when rebuilding sub-assemblies.
• Build accurate parts lists for quotes so the counterman and technician are talking about the same components.
• Confirm superseded part numbers and compatible replacements to avoid returns and downtime.

FAQ

Q: Can I use this catalogue on a tablet in the field?

A: Yes, it’s practical to zoom in on diagrams, search part descriptions, and cross-check components right beside the machine.

Q: Is it worth printing pages from this manual?

A: Many techs print only the relevant exploded views and bring them to the loader for marking and notes during teardown.

Safety Note

Always verify parts visually on the machine and follow the official service procedures and lockout/tagout rules before starting any work.

Case 721E Tier 3 NA Wheel Loader Index:

PICTORIAL INDEX – MAIN SECTIONS
PICTORIAL INDEX – SERVICE & MAINTENANCE
PICTORIAL INDEX – ENGINE
PICTORIAL INDEX – TRANSMISSION, POWERSHUTTLE
PICTORIAL INDEX – FOUR WHEEL DRIVE SYSTEM, 4WD
PICTORIAL INDEX – FRONT AXLE SYSTEM, 4WD
PICTORIAL INDEX – REAR AXLE SYSTEM
PICTORIAL INDEX – BRAKES & CONTROLS
PICTORIAL INDEX – HYDRAULIC SYSTEMS
PICTORIAL INDEX – FRAMES AND BALLASTING
PICTORIAL INDEX – STEERING, 4WD
PICTORIAL INDEX – WHEELS, 4WD
PICTORIAL INDEX – CAB CLIMATE CONTROL
PICTORIAL INDEX – ELECTRICAL SYSTEMS
PICTORIAL INDEX – FRONT LOADER AND BUCKET
PICTORIAL INDEX – BOOMS, DIPPERS & BUCKET
PICTORIAL INDEX – ACCESSORIES
PICTORIAL INDEX – PLATFORM, CAB, BODYWORK AND DECALS
IDENTIFICATION PLATES AND VERSION LIST
OPTIONAL EQUIPMENT
SECTION INDEX – SERVICE & MAINTENANCE
SECTION INDEX – ENGINE
SECTION INDEX – TRANSMISSION, POWERSHUTTLE
SECTION INDEX – FOUR WHEEL DRIVE SYSTEM, 4WD
SECTION INDEX – FRONT AXLE SYSTEM, 4WD
SECTION INDEX – REAR AXLE SYSTEM
SECTION INDEX – BRAKES & CONTROLS
SECTION INDEX – HYDRAULIC SYSTEMS
SECTION INDEX – CAB CLIMATE CONTROL
SECTION INDEX – ELECTRICAL SYSTEMS
SECTION INDEX – FRONT LOADER AND BUCKET
SECTION INDEX – BOOMS, DIPPERS & BUCKET
SECTION INDEX – ACCESSORIES
SECTION INDEX – PLATFORM, CAB, BODYWORK & DECALS

CNH