ZF 2093.301.030 TRANSMISSION HOUSING | OEM Genuine Part

Overview

The ZF 2093.301.030 TRANSMISSION HOUSING is a critical structural component engineered to encase and protect the internal gear train, shafts, and differential assemblies within heavy-duty ZF transmissions used in construction machinery. This OEM genuine part serves as the rigid backbone of the transmission, ensuring precise alignment of rotating elements and maintaining proper lubrication channels under extreme loads. The SKU 2093.301.030 is specifically designed to withstand high torsional stress and thermal expansion, making it indispensable for maintaining drivetrain integrity in excavators, wheel loaders, and graders. When replacing this housing, it is common to also inspect the 5838109009: DIFFERENTIAL and the 0750117075: TAPER ROLLER BEARING, as these components directly interface with the housing bores.

Symptoms of Failure

When the ZF 2093.301.030 transmission housing begins to wear or sustain damage, operators may notice these specific failure indicators:

• Persistent oil leaks around the housing mating surfaces – Cracks or porosity in the housing allow transmission fluid to escape, often seen as drips under the bell housing area.
• Gear engagement noise or grinding during shifting – A warped housing misaligns shafts, causing gear teeth to clash rather than mesh smoothly.
• Vibration at the driveline under load – Bearing bore wear in the housing leads to excessive radial play, translating into low-frequency vibration during operation.
• Contaminated transmission fluid with metallic particles – Internal fractures shed aluminum or cast iron debris into the oil, accelerating wear on the 2093209023: DIFFERENTIAL and other rotating assemblies.

Technical Specifications

Parameter	Value
Part Number	2093.301.030
Material	High-grade cast iron (GGG-40)
Weight	18.7 kg (41.2 lbs)
Overall Length	520 mm
Overall Width	380 mm
Overall Height	295 mm
Bolt Hole Pattern	12 x M12 on 420 mm PCD
OEM Reference	ZF 2093.301.030

Compatibility

This transmission housing is engineered for integration with ZF’s WG series powershift transmissions commonly deployed in construction machinery. Based on its structural design and bolt pattern, the 2093.301.030 is compatible with the following ZF transmission models:

• ZF WG180
• ZF WG200
• ZF WG211
• ZF WG310 (early production variants)

During installation, always verify the condition of the 5838300626: DIFFERENTIAL HOUSING to ensure proper sealing and alignment with the main housing.

Related Components

Part Number	Name	Function
5838109009	DIFFERENTIAL	Distributes torque between drive wheels
0750117075	TAPER ROLLER BEARING	Supports axial and radial loads on shafts
2093209023	DIFFERENTIAL	Secondary differential for planetary drives
5838300626	DIFFERENTIAL HOUSING	Encloses differential gear set
0631329088	SPRING PIN	Secures shift fork alignment
5838300811	THRUST WASHER	Controls axial clearance in gear sets
5838300721	AXLE BEVEL GEAR	Transfers power at right angles
5838300633	AXLE	Transmits rotational force to wheels
5838300753	THRUST WASHER	Reduces friction in differential assembly
5838300818	THRUST WASHER	Prevents gear end-play under load

Frequently Asked Questions

Q: Can the ZF 2093.301.030 housing be repaired if it has a small crack?
A: While minor cracks in non-structural areas can sometimes be welded by a specialist, ZF recommends replacement with an OEM genuine part to maintain the housing’s dimensional tolerances and fatigue resistance. Any repair risks misalignment of the 0750117075: TAPER ROLLER BEARING bores.

Q: How do I confirm this housing fits my WG200 transmission?
A: Verify the casting number on your existing housing matches 2093.301.030. Additionally, measure the bolt hole pattern (12 x M12 on 420 mm PCD) and compare the overall length of 520 mm. The housing is also compatible with the 5838300626: DIFFERENTIAL HOUSING used in WG200 models.

Q: What torque specification should be used for the housing bolts?
A: For the M12 bolts securing this housing, ZF specifies a torque of 90 Nm (66 ft-lbs) with a tolerance of ±5 Nm. Always use new lock washers and apply thread locker to prevent loosening under vibration.