Case 921G Wheel Loader – Parts, Specs

Description:

Serial Number Location:

For Case 921G Wheel Loaders (manufactured from 2020 onward), the serial number plate is typically mounted on the left side of the front frame near the articulation joint or behind the left front tire. Always verify the serial number when ordering parts—especially to differentiate between early Tier 4 Final builds and later G-Series Evolution variants with upgraded telematics and controls.

Key Specifications

Years Manufactured: 2020 – Present

Engine Model: FPT N67 Tier 4 Final / Stage V diesel

Net Horsepower: 255 HP @ 1,800 rpm

Displacement: 408 cu in (6.7 L)

Transmission Type: 5-speed Powershift with lock-up torque converter

Hydraulic Pressure: 3,625 psi

Hydraulic Flow Rate: 42.8 gal/min

Operating Weight: Approx. 51,250 lbs

Bucket Capacity: 4.5 – 5.25 cubic yards

Breakout Force: 46,297 lbs

Top Travel Speed: 24.5 mph

Dimensions (L×W×H): Approx. 29.1 ft × 9.9 ft × 11.8 ft

Performance & Design Highlights

FPT N67 Tier 4 Final Engine: Clean-burning, high-efficiency diesel power with SCR-only aftertreatment—no DPF or regeneration required.

G-Series Evolution Cab: Redesigned interior with 8" touchscreen, integrated payload system, rearview camera, and Bluetooth compatibility.

Efficient Lock-Up Torque Converter: Boosts travel performance while reducing fuel burn during load-and-carry operations.

Heated Rearview Mirrors & Enhanced LED Lighting: Improves visibility and safety in poor weather and low-light conditions.

Mid-Mounted Cooling Module: Features reversible fan and swing-out panels for fast debris removal and easy cleaning.

Routine Maintenance

• Engine Oil & Filter: Change every 500 hours

• DEF Filter: Replace every 3,000 hours

• Fuel Filters: Replace every 500 hours

• Hydraulic Oil & Filters: Change every 1,000 hours

• Transmission Fluid & Filter: Replace every 1,000 hours

• Air Filters: Inspect every 250 hours; replace when needed

• Cooling System: Clean every 250 hours; flush annually

Common Issues & Fixes

SCR/DEF System Errors: Caused by aged or poor-quality DEF—replace fluid, inspect tank sensors, and check for injector blockages.

Touchscreen Display Freeze: Reboot via power cycle or software update—inspect CAN bus wiring if unresponsive.

Lift Arm Drift or Delay: Likely caused by air in lines or weak pilot pressure—bleed hydraulic system and test control valve.

Hydraulic Noise or Heat: Clean debris from cooling stack and inspect pump for cavitation due to low fluid or clogged suction screen.

Transmission Shift Lag: May be due to worn solenoids or incorrect calibration—perform electronic transmission diagnostics.

Rearview Camera Flicker: Commonly caused by a loose harness connection or EMI interference—secure connectors and reroute if needed.