Overview
The ZF 4656.109.006 PARKING BRAKE is a critical safety and holding component engineered specifically for the WG160, WG190, and WG210 series transmissions. This OEM genuine part integrates directly into the rear section of the transmission housing, where it engages the output shaft to secure the vehicle when stationary. The SKU 4656.109.006 is designed to withstand high static loads and repeated actuation cycles, ensuring reliable parking brake function in heavy-duty industrial applications. This assembly works in concert with the 4656101031: TRANSMISSION HOUSING and the 4656201075: HOUS.FRONT SECT to maintain structural integrity and alignment under load.
Symptoms of Failure
- Vehicle Creep on Inclines: A worn parking brake fails to hold the transmission output shaft stationary, causing the vehicle to roll or creep even when the brake is fully engaged.
- Audible Grinding or Clicking: Damaged internal components produce metallic grinding or repetitive clicking noises when the parking brake is applied or released.
- Reduced Holding Torque: Operators notice the parking brake requires excessive lever force or fails to lock the driveline, indicating worn friction surfaces or broken pawls.
- Oil Contamination from Brake Debris: Internal wear particles from a failing parking brake can migrate into the transmission fluid, leading to premature wear of the 4656201036: HOUSING REAR PART and adjacent seals.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 4656.109.006 |
| OEM Reference | ZF 4656.109.006 |
| Material | High-strength alloy steel with corrosion-resistant coating |
| Weight | Approximately 2.8 kg (6.2 lbs) |
| Dimensions (L x W x H) | 180 mm x 95 mm x 75 mm |
| Operating Temperature Range | -40°C to +120°C |
| Torque Capacity | Up to 2,500 Nm static holding torque |
Compatibility
This parking brake is designed for the ZF WG series of powershift transmissions. It is directly compatible with the WG160, WG190, and WG210 models. Based on the mounting pattern and spline interface, it may also fit the WG180 and WG200 variants when used with the appropriate 4472239179: HOUSING REAR PART. Always verify the output shaft configuration and housing bolt pattern before installation. The part interfaces with the transmission housing assembly to ensure proper engagement geometry.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4656101031 | TRANSMISSION HOUSING | Main structural casing for gear train and shaft support |
| 4656201075 | HOUS.FRONT SECT | Front section housing for input shaft and clutch pack |
| 4656201036 | HOUSING REAR PART | Rear housing section supporting output shaft and parking brake |
| 4472239179 | HOUSING REAR PART | Alternate rear housing for WG180/WG200 variants |
| 0631306816 | CYLINDRICAL PIN | Alignment pin for housing and brake assembly |
| 4656301148 | FIXING PLATE | Secures parking brake mechanism to housing |
| 0636100817 | CAP SCREW | Fastener for housing and brake mounting |
| 4656301016 | SCREEN SHEET | Filter screen for brake debris protection |
| 4656301017 | SCREEN SHEET | Secondary filter screen for fluid cleanliness |
| 0636100803 | CAP SCREW | Mounting screw for screen sheet retention |
Frequently Asked Questions
Q: Can the 4656.109.006 parking brake be installed without removing the transmission from the vehicle?
A: In most applications, the parking brake can be accessed by removing the rear housing cover. However, for WG210 models with limited clearance, partial transmission removal may be required to access the 4656201036: HOUSING REAR PART.
Q: What is the expected service life of this OEM parking brake?
A: Under normal operating conditions with proper lubrication, the parking brake typically lasts 5,000 to 8,000 engagement cycles. Harsh environments or frequent incline parking can reduce this lifespan.
Q: Does this part include the necessary mounting hardware?
A: The 4656.109.006 is supplied as the parking brake assembly only. For installation, you will need the 0631306816: CYLINDRICAL PIN and 0636100817: CAP SCREW for proper fitment.
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Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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