ZF 2093.078.022 T 7226 L | OEM Genuine Part

Overview

This OEM genuine ZF 2093.078.022 T 7226 L is a critical internal component engineered for the demanding environment of construction machinery transmissions. Specifically, this part functions as a precision-machined spacer or thrust element within the differential assembly of heavy-duty ZF drivelines. It ensures correct axial clearance and load distribution between rotating gears and housings, directly influencing torque transfer efficiency and long-term gear alignment. The SKU 2093.078.022 is a factory-original reference, guaranteeing exact metallurgical composition and dimensional tolerances required for sustained operation under high shock loads. When installed alongside a 2093109002: DIFFERENTIAL, this part helps maintain the precise preload necessary to prevent premature wear on adjacent gear sets.

Symptoms of Failure

When the ZF 2093.078.022 component degrades or is damaged, operators will notice distinct operational anomalies. The most common failure symptom is a pronounced “clunking” noise during directional shifts, indicating excessive axial play within the differential housing. A second critical sign is intermittent gear slipping under load, particularly when the machine is climbing or digging, which results from lost preload on the bevel gear set. Third, you may observe fine metallic debris in the transmission oil filter, a direct indicator of accelerated wear on the 0750117075: TAPER ROLLER BEARING caused by improper spacing. Finally, chronic oil seepage from the differential housing gasket can occur as vibration increases due to component instability.

Technical Specifications

Compatibility

This OEM genuine spacer is primarily utilized in ZF’s heavy-duty powershift transmission series designed for wheel loaders, dozers, and graders. It is a standard service part for the ZF WG180 and ZF WG200 transmission families, which are common in 15-25 ton construction machinery. It also appears in select variants of the ZF 4WG-200 and ZF 5WG-200 series. For proper assembly, this component must be paired with the 2093209095: DIFFERENTIAL and the 2093309071: DIFF.HOUSING to ensure correct gear mesh depth and bearing preload.

Related Components

Frequently Asked Questions

Q: Can I reuse the 2093.078.022 spacer if it shows only minor surface wear?
A: No. This component is a precision shim that sets critical bearing preload. Any measurable wear or deformation will alter gear mesh patterns and lead to rapid failure of the 0750117075: TAPER ROLLER BEARING. Always replace with a new OEM part during differential rebuilds.

Q: Is this part compatible with ZF 4WG-160 transmissions?
A: No. The 2093.078.022 is dimensionally specific to the WG180 and WG200 series. The 4WG-160 uses a different spacer thickness (typically 3.2 mm). Verify your transmission model plate before ordering.

Q: What is the typical service interval for replacing this spacer?
A: ZF recommends inspecting this component during every major transmission overhaul, typically at 6,000-8,000 operating hours for construction machinery. It should always be replaced when the 2093309071: DIFF.HOUSING is replaced or machined.