ZF 2094.222.008 BUSH | OEM Genuine Part

Overview

The ZF 2094.222.008 BUSH is a precision-engineered, OEM genuine component designed to serve as a critical wear surface within the planetary gearset of heavy-duty ZF transmissions. This bushing acts as a sacrificial liner between rotating shafts and stationary housings, reducing friction and maintaining precise axial alignment under extreme loads. Specifically, it is installed in the clutch pack and main shaft support areas to absorb radial forces and prevent metal-on-metal contact. The SKU 2094.222.008 is manufactured to ZF’s exacting tolerances, ensuring consistent oil film distribution and long service life in demanding construction machinery applications.

Symptoms of Failure

• Transmission oil leaks near the bell housing: A worn 2094.222.008 bushing can cause shaft wobble, breaking the seal between the housing and the main shaft, leading to visible fluid seepage.
• Intermittent gear slipping under load: When the bushing loses its clearance, the main shaft can shift axially, preventing full clutch engagement and causing the transmission to slip during excavation or grading operations.
• Metallic grinding noise during gear changes: Excessive radial play from a degraded bushing allows the shaft to contact the housing, producing a distinct grinding sound, particularly when shifting from neutral to drive.
• Vibration in the driveline at low RPM: Worn bushings fail to dampen torsional vibrations, transmitting harsh oscillations through the transmission case and into the operator cab.

Technical Specifications

Specification	Value
Part Number / SKU	2094.222.008
Inner Diameter (ID)	45.0 mm
Outer Diameter (OD)	55.0 mm
Length	30.0 mm
Material	Steel-backed bronze alloy (sintered)
Weight	0.12 kg
OEM Reference	ZF 2094.222.008 (Genuine)

Compatibility

This bushing is engineered for integration into ZF’s heavy-duty powershift transmission series commonly found in wheel loaders, dozers, and graders. It is a direct fit for the ZF WG180, WG200, and WG250 transmission models. Additionally, it is compatible with the ZF 4WG-200 and ZF 6WG-250 series, where it supports the main shaft assembly. Always verify your transmission model code before ordering.

Installation Context

When replacing the 2094.222.008 bushing, it is standard practice to inspect and replace the 2094104412: MAIN SHAFT if scoring or wear is detected. The bushing works in tandem with the 2094304054: MAIN SHAFT to maintain concentricity. Additionally, the 2094106010: SHIFT SYSTEM and the 2094206001: GEARSHIFT SHAFT must be correctly aligned to prevent premature bushing failure. Always replace the snap rings and springs during a full overhaul.

Related Components

Part Number	Name	Function
2094104412	Main Shaft	Transfers torque from the engine to the planetary gears
2094304054	Main Shaft	Secondary shaft for clutch pack engagement
2094106010	Shift System	Hydraulic valve body for gear selection
2094206001	Gearshift Shaft	Mechanical linkage for shift fork movement
2094306053	Gearshift Shaft	Alternate shaft for reverse gear engagement
0630513070	Snap Ring	Secures the bushing in its bore
2094306019	Washer	Thrust washer for axial load distribution
0732040444	Compression Spring	Provides preload to the shift rail
0732040728	Compression Spring	Heavy-duty spring for clutch piston return
2093206001	Bush	Alternative bushing for auxiliary drive shafts

Frequently Asked Questions

Q: Can I reuse the old snap ring when installing the 2094.222.008 bushing?
A: No. ZF recommends always replacing the snap ring (part 0630513070) because it loses its tension after removal. A reused snap ring can dislodge, causing the bushing to spin and damage the housing.

Q: How do I know if the bushing is worn without disassembling the transmission?
A: Measure the radial play at the main shaft flange using a dial indicator. If play exceeds 0.20 mm, the bushing is likely worn. You may also see fine bronze particles in the transmission oil filter.

Q: Is this bushing compatible with the ZF 4WG-200 transmission?
A: Yes, the 2094.222.008 bushing is a standard component in the 4WG-200 series, specifically in the input shaft support area. Always cross-reference your transmission serial number for absolute confirmation.