ZF 6009.092.873 for WG160 | OEM Genuine Part

Overview

The ZF 6009.092.873 is a critical OEM genuine component engineered specifically for the WG 160 Series transmission. This precision-machined part functions as a key interface within the hydraulic control circuit, regulating fluid flow to ensure consistent clutch engagement and torque converter lock-up. Positioned within the valve body assembly, the 6009.092.873 works in concert with the TRANSMISSION HOUSING to maintain proper line pressure. When installed alongside the HOUS.FRONT SECT, this part ensures the transmission’s shift quality remains factory-spec. The SKU 6009.092.873 is manufactured to ZF’s original tolerances, making it a direct replacement for worn units in heavy-duty applications.

Symptoms of Failure

• Delayed or harsh shifting — When the 6009.092.873 loses its sealing integrity, hydraulic pressure fluctuates, causing noticeable lag between gear changes or abrupt engagement. This often presents as “ZF WG160 hard shifting when cold.”
• Intermittent gear slippage — A worn part fails to maintain steady fluid flow, leading to clutch pack slip under load. Operators may report “transmission slipping in 3rd gear WG160” as a primary complaint.
• Visible fluid seepage — Cracks or deformation in the component allow ATF to escape past seals. Look for “ZF transmission oil leak near valve body” as a common long-tail search query.
• Erratic torque converter lock-up — The part’s degradation can prevent proper converter clutch application, resulting in “WG160 torque converter shudder at highway speeds.”

Technical Specifications

Compatibility

This genuine ZF part is primarily designed for the WG 160 Series transmission, but its application extends to several related models. The 6009.092.873 is also compatible with the WG 180 and WG 200 series when used in conjunction with the correct HOUSING REAR PART (4656201035) or the alternative HOUSING REAR PART (4472239178). It is a direct fit for all WG160 variants including the WG160-6 and WG160-8. For WG180 and WG200 applications, verify that the valve body casting matches the part’s pilot diameter. The component is not backward-compatible with the older WG120 series.

Related Components

Frequently Asked Questions

Q: Can the ZF 6009.092.873 be reused after a transmission rebuild?
A: No. This is a wear item that should always be replaced with a new OEM genuine part during any WG160 overhaul. Reusing it risks immediate hydraulic leakage and shift quality degradation.

Q: How do I confirm this part fits my WG160 transmission?
A: Check the stamped identification tag on your transmission’s TRANSMISSION HOUSING. If the model number begins with “WG160-“, the 6009.092.873 is a direct fit. For WG180 or WG200 units, verify the valve body casting number matches.

Q: What tools are needed to replace the 6009.092.873?
A: Standard socket set, torque wrench, and a seal driver. You will also need to remove the HOUS.FRONT SECT to access the valve body. Always replace the CAP SCREW (0636100817) during reassembly.