Overview
The ZF 2093.298.128 TRANSMISSION HOUSING is a critical structural component within the ZF power-shift transmission assembly. It serves as the primary enclosure that houses the gear sets, shafts, and hydraulic control valves, ensuring precise alignment and protection from external contaminants. As an OEM genuine part, this housing maintains the exact tolerances required for reliable torque transfer and oil circulation. The SKU 2093.298.128 is engineered to withstand high cyclic loads and thermal expansion, making it indispensable for heavy-duty construction machinery applications.
Symptoms of Failure
- External oil seepage around mating surfaces: A cracked or warped housing often leads to persistent transmission fluid leaks, especially near the bell housing or PTO cover.
- Abnormal gear engagement noise: When the housing loses its dimensional stability, bearing bores can shift, causing whining or grinding sounds during shifting.
- Intermittent clutch slip or harsh shifts: Distortion in the housing can misalign valve body passages, resulting in erratic hydraulic pressure and delayed gear changes.
- Visible cracks or porosity on the casting: Stress fractures typically appear around bolt bosses or ribbed sections, leading to complete structural failure if ignored.
Technical Specifications
| Parameter | Value |
|---|---|
| Material | High-grade aluminum alloy (A356-T6) |
| Weight | 14.2 kg (31.3 lbs) |
| Overall Length | 520 mm |
| Overall Width | 380 mm |
| Overall Height | 290 mm |
| Bolt Hole Pattern | 6x M12 on 180 mm PCD |
| OEM Reference | 2093.298.128 |
| Surface Treatment | Clear anodized (corrosion resistant) |
Compatibility
This transmission housing is specifically designed for ZF’s heavy-duty powershift series, including the WG180, WG200, and WG210 models. It is also compatible with select variants of the WG150 and WG250 transmissions used in wheel loaders, graders, and dump trucks. Always verify the casting number against your existing unit before installation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2093101054 | HOUSING | Secondary cover for valve body access |
| 2093301072 | TRANSMISSION HOUSING | Main structural casing for gear train |
| 0501209878 | TAPPET SWITCH | Monitors clutch piston position |
| 0501311096 | PROTECTING SLEEVE | Shields wiring harness from chafing |
| 0730365092 | TYPE PLATE | Identification tag for transmission model |
| 0666690171 | ADHESIVE | Sealant for gasketless joints |
| 4475280150 | SCREW PLUG | Closes oil drain or test ports |
| 0634304731 | O-RING | Seals plug-to-housing interface |
| 0637510223 | SCREW PLUG | Magnetic drain plug for debris collection |
| 0634306328 | O-RING | High-temperature seal for magnetic plug |
Frequently Asked Questions
Q: Can I reuse the old gasket when installing this housing?
A: No. Always replace all seals and O-rings, including the 0634304731 O-RING and 0666690171 ADHESIVE, to prevent fluid bypass.
Q: Does this housing come with the protective sleeve installed?
A: No. The 0501311096 PROTECTING SLEEVE and 0501209878 TAPPET SWITCH are sold separately to allow custom routing.
Q: What torque specification should I use for the housing bolts?
A: Tighten M12 bolts to 85 Nm (63 ft-lbs) in a crosswise pattern, using 4475280150 SCREW PLUG for any open ports.
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