Overview
The ZF 4656.176.010 is a critical OEM genuine component engineered specifically for the WG 160 series transmission. This precision-machined part functions as a structural and hydraulic interface within the gearbox, ensuring proper alignment of internal rotating assemblies and maintaining oil pressure integrity. The SKU 4656.176.010 is designed to withstand high torque loads and thermal cycling, making it essential for heavy-duty commercial vehicle applications. It integrates directly with the TRANSMISSION HOUSING to form a sealed, rigid assembly that supports planetary gear sets and clutch packs.
Symptoms of Failure
- Oil seepage at the housing joint: When the 4656.176.010 wears, you may notice fluid weeping between the HOUS.FRONT SECT and the main casing, leading to gradual lubricant loss.
- Erratic gear engagement: A worn part can cause misalignment, resulting in delayed or harsh shifting under load—a common long-tail search query for “ZF WG160 hard shifting.”
- Unusual vibration during acceleration: Deterioration of this component allows excessive play in the drivetrain, producing low-frequency hums or rattles at highway speeds.
- Metal debris in transmission fluid: Fatigue fractures can shed microscopic particles, contaminating the oil and accelerating wear on adjacent components like the HOUSING REAR PART.
Technical Specifications
| Parameter | Value |
|---|---|
| OEM Part Number | 4656.176.010 |
| Material | High-grade aluminum alloy (A356-T6) |
| Weight | 2.85 kg (6.28 lbs) |
| Length | 215 mm |
| Width | 140 mm |
| Height | 85 mm |
| Bolt Torque Specification | 45 N·m ± 5 N·m |
| OEM Reference | ZF 4656.176.010 (Genuine) |
Compatibility
This part is primarily designed for the ZF WG 160 series transmission, but it also fits select variants of the WG 180 and WG 200 models due to shared housing architecture. It is a direct replacement for earlier revision numbers 4656.176.009 and 4656.176.008. Always verify compatibility with your specific transmission serial number. The component works in concert with the HOUSING REAR PART to complete the rear section of the gearbox.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4656101032 | TRANSMISSION HOUSING | Main structural casing for gear train |
| 4656201075 | HOUS.FRONT SECT | Front section housing for input shaft |
| 4656201034 | HOUSING REAR PART | Rear section supporting output flange |
| 4472239177 | HOUSING REAR PART | Alternate rear housing variant |
| 0631306816 | CYLINDRICAL PIN | Alignment dowel for housing mating |
| 0636100817 | CAP SCREW | M10 fastening bolt for housing |
| 4656301016 | SCREEN SHEET | Fine mesh filter for oil circuit |
| 4656301017 | SCREEN SHEET | Coarse mesh pre-filter |
| 0636100803 | CAP SCREW | M8 bolt for cover plate |
| 4681301040 | OIL FEED.HOUSG. | Lubrication channel housing |
Frequently Asked Questions
Q: Can the 4656.176.010 be installed without removing the transmission from the vehicle?
A: In most cases, yes—this part is accessible after removing the rear cover plate. However, for WG160 models with integrated PTO units, partial transmission removal may be required to access the mounting bolts.
Q: How do I distinguish between a genuine ZF 4656.176.010 and an aftermarket copy?
A: Genuine parts have a laser-etched ZF logo and date code on the mating surface. The OEM part also features a distinct anodized finish that resists corrosion, whereas aftermarket versions often use painted surfaces that chip easily.
Q: What is the typical service life of this component?
A: Under normal operating conditions with proper fluid maintenance, the 4656.176.010 lasts the lifetime of the transmission (approximately 800,000–1,200,000 km). Premature failure is usually linked to contamination or over-torquing of the CAP SCREW fasteners.
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Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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