ZF 4657.174.064 CLUTCH for WG 190/WG 210 | OEM Genuine Part

Overview

The ZF 4657.174.064 CLUTCH is a critical torque-transfer component engineered specifically for the WG 190 and WG 210 series transmissions. This OEM genuine part, identified by SKU 4657.174.064, sits within the planetary gear set assembly, where it engages and disengages power flow between the input shaft and the intermediate shaft. By precisely modulating hydraulic pressure, this clutch ensures smooth gear shifts and reliable power delivery under heavy industrial loads. It is a direct replacement unit designed to restore factory-specified performance in ZF WG 191 and WG 211 transmission variants.

Symptoms of Failure

• Delayed or harsh gear engagement: When the 4657.174.064 clutch wears, operators often report a noticeable lag or a jarring “clunk” when shifting from neutral into drive or reverse, especially under load.
• Transmission oil overheating: A failing clutch generates excessive friction, causing the transmission fluid to overheat rapidly. This can trigger warning lights or cause a burnt smell from the breather.
• Slipping under load: If the clutch discs are worn or glazed, the transmission may momentarily lose power during acceleration or when climbing grades, with engine RPM rising without a corresponding increase in vehicle speed.
• Intermittent loss of forward or reverse: Severe wear can cause the clutch to fail to hold pressure, resulting in a complete loss of drive in one or more gear ranges, often accompanied by low fluid level warnings.

Technical Specifications

Compatibility

This clutch assembly is engineered for the ZF WG 190 and WG 210 transmission families. It is directly compatible with the WG 191 Series and WG 211 Series, which are commonly found in medium-duty trucks, construction loaders, and agricultural tractors. The part also fits select variants of the WG 180 and WG 200 transmissions where the clutch pack configuration matches the 174 mm outer diameter. Always verify the spline count and stack height against your transmission’s service manual before installation.

Related Components

When replacing the 4657.174.064 CLUTCH, it is essential to inspect and often replace the surrounding assembly components. The clutch sits inside the TRANSMISSION HOUSING, which provides structural support and fluid containment. The HOUS.FRONT SECT and HOUSING REAR PART sandwich the clutch pack, while a CYLINDRICAL PIN aligns these housings during assembly. Below is a complete list of parts that are frequently ordered together with this clutch.

Frequently Asked Questions

Q: Can I install the 4657.174.064 clutch without replacing the transmission housing?
A: Yes, the clutch can be replaced independently, but we strongly recommend inspecting the TRANSMISSION HOUSING for wear or scoring. If the housing shows damage, it must be replaced to prevent premature clutch failure.

Q: How do I know if my WG 210 transmission uses this exact clutch?
A: Check the clutch pack stack height. The 4657.174.064 has a total assembled thickness of 38.5 mm. If your original clutch measures within 0.5 mm of this value and has 6 friction discs, this part is the correct replacement.

Q: What torque should I use for the cap screws when reinstalling the housings?
A: For the CAP SCREW (0636102489) and CAP SCREW (0636102463), apply 45 Nm of torque in a cross-tightening pattern. Always use a new FIXING PLATE to lock the fasteners.