Overview
The ZF 4657.174.045 CLUTCH is a critical torque-transfer component engineered specifically for the WG 190 and WG 210 series transmissions. This OEM genuine part sits within the clutch pack assembly, where it engages and disengages power flow between the input shaft and planetary gear sets. The SKU 4657.174.045 is precision-machined to factory tolerances, ensuring consistent hydraulic pressure application and smooth gear shifts under heavy-duty industrial loads. When paired with the TRANSMISSION HOUSING, this clutch maintains structural alignment and prevents axial play during high-torque operations.
Symptoms of Failure
- Delayed or harsh gear engagement: When the clutch disc wears, hydraulic pressure drops, causing noticeable hesitation or jerking when shifting from neutral to drive or reverse.
- Torque converter shudder at low RPM: A worn 4657.174.045 clutch can cause vibration during acceleration from a stop, often misdiagnosed as a converter issue.
- Burning smell or dark transmission fluid: Friction material degradation generates excessive heat, leading to a distinct burnt odor and discolored oil.
- Intermittent gear slipping under load: As the clutch loses clamping force, the transmission may momentarily lose power delivery when climbing grades or hauling heavy loads.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 4657.174.045 |
| OEM Reference | ZF 4657.174.045 |
| Outer Diameter | 245 mm (estimated) |
| Inner Diameter | 165 mm (estimated) |
| Friction Plate Thickness | 3.2 mm (estimated) |
| Material | Sintered bronze friction lining on steel core |
| Weight | 1.8 kg (estimated) |
| Hydraulic Pressure Rating | 12–18 bar |
Compatibility
This clutch is primarily designed for the ZF WG 210 series, with confirmed fitment in the WG 190 series as well. It is also compatible with earlier WG 180 and WG 200 transmissions, provided the clutch pack stack height is verified. The part integrates directly with the HOUS.FRONT SECT and the HOUSING REAR PART to form the complete clutch drum assembly. Always confirm spline count and friction plate count before installation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101033 | TRANSMISSION HOUSING | Main structural casing for gear train |
| 4657201027 | HOUS.FRONT SECT | Front section housing pump and clutch |
| 4657201012 | HOUSING REAR PART | Rear section supporting output shaft |
| 0631306792 | CYLINDRICAL PIN | Alignment dowel for housing mating |
| 0636100801 | CAP SCREW | Fastener for clutch drum retention |
| 4656301148 | FIXING PLATE | Secures clutch pack in housing |
| 4657301032 | SCREEN SHEET | Fine mesh filter for hydraulic circuit |
| 4657301033 | SCREEN SHEET | Coarse mesh pre-filter for oil sump |
| 0636100803 | CAP SCREW | Bolt for valve body attachment |
| 4681301040 | OIL FEED.HOUSG. | Distributes lubricant to clutch pack |
Frequently Asked Questions
Q: Can the 4657.174.045 clutch be installed without removing the transmission?
A: In most WG 210 applications, the clutch pack is accessible after removing the oil pan and valve body. However, full transmission removal is recommended for proper clearance and to inspect the CYLINDRICAL PIN for wear.
Q: What is the typical lifespan of this clutch under normal operating conditions?
A: With proper fluid maintenance and moderate loads, the OEM 4657.174.045 clutch typically lasts 150,000–200,000 miles. Heavy towing or frequent stop-and-go operation may reduce this to 80,000–100,000 miles.
Q: Is the friction lining asbestos-free?
A: Yes, this genuine ZF part uses a sintered bronze material that is fully asbestos-free and compliant with current environmental regulations.
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Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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