ZF 0730.002.217 SHIM | OEM Genuine Part

Overview

The ZF 0730.002.217 SHIM is a precision-engineered adjustment component designed to maintain critical axial clearances within ZF heavy-duty transmission assemblies. This OEM genuine part, identified by SKU 0730.002.217, sits between the differential housing and bearing races to eliminate unwanted play and ensure optimal gear mesh alignment. In construction machinery transmissions, this shim compensates for manufacturing tolerances and wear, directly influencing torque transfer efficiency. When paired with a 5838109012: DIFFERENTIAL, it ensures the entire rotating assembly maintains factory-specified preload under heavy loads.

Symptoms of Failure

• Excessive driveline backlash – A worn or collapsed shim allows the differential to shift, creating a noticeable clunk when shifting between forward and reverse gears in wheel loaders or excavators.
• Premature bearing noise – Without proper shim thickness, a 0750117075: TAPER ROLLER BEARING loses its preload, producing a low-frequency growl during operation that intensifies under load.
• Oil contamination from metal debris – As the shim wears, microscopic steel particles circulate through the transmission fluid, often visible on the magnetic drain plug during routine maintenance.
• Intermittent gear slipping under heavy torque – Operators may notice momentary power loss when the machine encounters a heavy load, as the differential housing shifts out of alignment.

Technical Specifications

Specification	Value
Part Number	0730.002.217
Material	Case-hardened steel (DIN 1.3505 equivalent)
Thickness	2.17 mm (nominal)
Outer Diameter	85.0 mm
Inner Diameter	62.0 mm
Weight	0.045 kg
OEM Reference	ZF 0730.002.217
Surface Finish	Ground, Ra ≤ 0.8 µm

Compatibility

This shim is engineered for ZF WG series powershift transmissions commonly used in construction machinery. It is a direct fit for the WG180, WG200, and WG250 models. The part also applies to certain ZF 4WG-310 and 5WG-350 variants where the differential assembly requires fine axial adjustment. Always verify the existing shim stack thickness before replacement, as multiple shims may be combined to achieve the correct preload on the 2093209023: DIFFERENTIAL assembly.

Installation Notes

During rebuild, the shim is positioned between the 5838300626: DIFFERENTIAL HOUSING and the bearing shoulder. Use a dial indicator to measure end float before final assembly; the target preload is typically 0.05–0.15 mm. Never reuse a shim that shows edge deformation or scoring.

Related Components

Part Number	Name	Function
5838109012	DIFFERENTIAL	Distributes torque between axles
0750117075	TAPER ROLLER BEARING	Supports differential rotation under load
2093209023	DIFFERENTIAL	Alternate differential variant for WG series
5838300626	DIFFERENTIAL HOUSING	Encloses and supports differential gears
0631329088	SPRING PIN	Secures shim and gear alignment
5838300811	THRUST WASHER	Reduces axial friction on gear faces
5838300721	AXLE BEVEL GEAR	Transfers power to axle shafts
5838300633	AXLE	Drives wheel hubs from differential
5838300753	THRUST WASHER	Controls side gear clearance
5838300818	THRUST WASHER	Provides axial support for spider gears

Frequently Asked Questions

Q: Can I stack multiple 0730.002.217 shims to adjust clearance?
A: Yes, stacking up to three shims is acceptable, but the total stack thickness must not exceed 6.5 mm to avoid over-preloading the taper roller bearing. Always measure the combined thickness with a micrometer.

Q: How do I know if my shim is worn beyond reuse?
A: Inspect for a polished, mirror-like surface on one side only—this indicates the shim has been work-hardened and lost its original thickness. Any visible scoring or a thickness reduction greater than 0.05 mm requires replacement.

Q: Does this shim fit the ZF 4WG-200 transmission?
A: Yes, the 0730.002.217 is compatible with the 4WG-200 when used in conjunction with the 5838300626 differential housing. Verify your housing bore diameter is 85 mm before installation.