Overview
The ZF 4656.199.023 is a precision-engineered OEM genuine part designed specifically for the WG 160 Series transmission. This component serves as a critical sealing and alignment element within the transmission’s rear housing assembly, ensuring proper oil flow and preventing contamination between internal chambers. As an original ZF part, the SKU 4656.199.023 guarantees exact fitment and durability under high-torque industrial applications. It integrates directly with the TRANSMISSION HOUSING and the HOUS.FRONT SECT to maintain structural integrity in heavy-duty drivelines.
Symptoms of Failure
When the ZF 4656.199.023 begins to wear, operators may notice specific performance declines. Common failure indicators include:
- Oil seepage at the rear housing joint – A worn 4656.199.023 often leads to visible fluid leaks around the mating surface between the HOUSING REAR PART and the main case.
- Intermittent gear engagement hesitation – Loss of hydraulic pressure due to a compromised seal can cause delayed shifting, especially under load.
- Contaminated transmission fluid – Debris ingress through a degraded seal accelerates wear on internal components, often detected during routine oil analysis.
- Vibration or whining noise from the rear section – Misalignment caused by a failing part can generate abnormal sounds during operation.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 4656.199.023 |
| Material | High-grade steel with corrosion-resistant coating |
| Weight | 0.85 kg (approx.) |
| Dimensions (L x W x H) | 120 mm x 80 mm x 25 mm |
| OEM Reference | ZF 4656.199.023 |
| Compatible Housing | HOUSING REAR PART (4472239178) |
Compatibility
This OEM genuine part is primarily engineered for the WG 160 Series transmission, but it also fits select models in the WG180 and WG200 families where rear housing configurations share identical sealing interfaces. Always verify compatibility with your specific transmission serial number. The 4656.199.023 works in conjunction with the TRANSMISSION HOUSING and HOUS.FRONT SECT to ensure proper alignment across multiple ZF gearbox variants.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4656101037 | TRANSMISSION HOUSING | Main structural casing for gear assembly |
| 4656201075 | HOUS.FRONT SECT | Front section housing for input shaft support |
| 4656201035 | HOUSING REAR PART | Rear housing section for output shaft alignment |
| 4472239178 | HOUSING REAR PART | Alternate rear housing variant for specific models |
| 0631306816 | CYLINDRICAL PIN | Precision alignment pin for housing mating |
| 4656301148 | FIXING PLATE | Secures internal components against axial movement |
| 0636100817 | CAP SCREW | Fastener for housing attachment points |
| 4656301016 | SCREEN SHEET | Filter mesh for fluid debris protection |
| 4656301017 | SCREEN SHEET | Secondary filter screen for high-flow circuits |
| 0636100803 | CAP SCREW | Mounting bolt for screen sheet retention |
Frequently Asked Questions
Q: Can the ZF 4656.199.023 be reused after disassembly?
A: No. This OEM part is designed as a single-use sealing component. Reusing it may lead to immediate fluid leaks and pressure loss. Always install a new 4656.199.023 during rebuilds.
Q: How do I confirm this part fits my WG160 transmission?
A: Check the serial number on your transmission’s data plate. The 4656.199.023 is standard for WG160 models manufactured after 2015. For earlier units, cross-reference with the HOUSING REAR PART configuration.
Q: What tools are needed for installation?
A> Standard socket set, torque wrench, and a seal driver tool. Ensure the mating surfaces on the TRANSMISSION HOUSING are clean and free of old gasket material before fitting.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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