ZF 4168.034.126 for WG190/WG191/WG210 | OEM Genuine Part

Overview

The ZF 4168.034.126 is a precision-engineered OEM genuine component designed for the WG190, WG191, and WG210 series transmissions. This part functions as a critical sealing and alignment element within the transmission’s rear housing assembly, ensuring proper oil flow and structural integrity between the main gear case and the output section. As an OEM genuine part, SKU 4168.034.126 guarantees exact fitment and factory-specified tolerances, reducing the risk of premature wear in heavy-duty industrial applications. It is often replaced in conjunction with the 4657101082: TRANSMISSION HOUSING to maintain a sealed, vibration-resistant assembly.

Symptoms of Failure

• Oil seepage at the rear housing joint: When the 4168.034.126 loses its sealing capacity, transmission fluid may weep from the mating surface between the main housing and the rear section, often visible as a wet streak along the bell housing.
• Abnormal gear engagement noise: A worn or misaligned part can cause a low-frequency rumbling or clunking sound during gear shifts, particularly under load, as the internal support structure loses rigidity.
• Intermittent gear slipping in higher ranges: Loss of precise alignment can lead to hydraulic pressure fluctuations, resulting in momentary slipping in WG191 or WG210 units during uphill or heavy-load operation.
• Increased vibration at the output flange: Deterioration of this component may allow the rear housing to shift slightly, transmitting excessive vibration through the driveline during acceleration.

Technical Specifications

Compatibility

This genuine ZF part is engineered for the following transmission series: WG180, WG190, WG191, WG200, WG210, WG211, and WG230. It is specifically validated for use in the rear housing section of WG190/WG191/WG210 models, where it interfaces directly with the 4657201166: HOUS.FRONT SECT and the 4657201170: HOUSING REAR PART. For complete rear housing replacement, the 4657298102: HOUSING REAR SECTION is also a direct companion component. Always verify your transmission’s serial number before ordering.

Related Components

Frequently Asked Questions

Q: Can the 4168.034.126 be used in a WG230 transmission?
A: Yes, this part is listed as compatible with the WG230 series. However, we recommend cross-referencing your transmission’s serial number with the OEM catalog to confirm fitment, as some WG230 variants use a different rear housing profile.

Q: What tools are required to replace this part?
A: Replacement typically requires a torque wrench, a set of hex sockets (10mm to 18mm), and a sealant applicator. You will also need to remove the 4657201170: HOUSING REAR PART to access the mounting bolts.

Q: Is this part interchangeable with aftermarket versions?
A: While aftermarket copies may fit, only the OEM genuine 4168.034.126 guarantees the exact material hardness and sealing surface flatness required for long-term reliability in heavy-duty cycles. Using non-OEM parts can void transmission warranties.