Serial Number Location:
For Case 421G Wheel Loaders (produced from 2017 to present), the serial number plate is typically located on the left side of the machine frame, near the articulation joint and below the operator’s cab. Always verify your serial number before ordering model-specific parts.
Key Specifications
| Feature |
Specification |
| Years Manufactured |
2017 – Present |
| Engine Model |
FPT F4HFE413J (4-cylinder diesel) |
| Net Horsepower |
74 HP (55 kW) @ 2,200 rpm |
| Gross Horsepower |
75 HP (56 kW) @ 2,200 rpm |
| Max Torque |
232 lb-ft (315 Nm) @ 1,400 rpm |
| Displacement |
207 cu in (3.4 L) |
| Transmission Type |
Hydrostatic with 2-speed travel |
| Hydraulic Flow Rate (Standard) |
20.5 gal/min (77.5 L/min) |
| Hydraulic Flow Rate (High-Flow) |
30.5 gal/min (115.5 L/min) |
| Hydraulic Pressure |
3,625 psi (250 bar) |
| Operating Weight |
11,354 lbs (5,150 kg) |
| Bucket Capacity |
1.0 cu yd (0.76 m³) |
| Breakout Force |
11,100 lbs (5,034 kg) |
| Travel Speed (Max) |
21.7 mph (35 km/h) |
| Dimensions (L×W×H) |
18.7' × 6.3' × 8.7' (5.7 × 1.9 × 2.66 m) |
Performance & Design Highlights
Efficient Engine
The 421G is powered by a Tier 4 Final FPT engine, delivering reliable performance with reduced emissions and excellent fuel efficiency.
Hydrostatic Transmission
Smooth hydrostatic 2-speed transmission provides responsive control, ideal for material handling and tight maneuvering.
Powerful Hydraulics
Standard and high-flow hydraulic options support demanding attachments and increased productivity.
Robust Breakout Force
With over 11,000 lbs of breakout force, the 421G handles heavy-duty loading and lifting with ease.
Operator Comfort
Spacious cab with excellent visibility, ergonomic controls, and adjustable seating reduce fatigue during long shifts.
Maintenance & Common Issues
Routine Maintenance
| Component |
Service Interval |
| Engine Oil & Filter |
Replace every 500 hours |
| Hydraulic Fluid & Filter |
Service every 1,000 hours |
| Air Filter |
Inspect every 250 hours; replace as needed |
| Fuel Filter |
Replace every 500 hours |
| Transmission Fluid |
Replace every 1,000 hours |
| Cooling System |
Clean and inspect every 1,000 hours |
Common Issues & Fixes
| Issue |
Quick Fix |
| Hydraulic Leaks |
Inspect hoses, fittings, and cylinders; replace worn components |
| Transmission Response Lag |
Check hydrostatic system fluid and settings; recalibrate if needed |
| DEF System Warnings |
Inspect DEF quality and sensors; clean or replace as needed |
| Loader Arm Play |
Inspect and replace worn bushings or pins |
| Engine Overheating |
Clean radiator and coolers; inspect coolant level and thermostat |