Overview
The ZF 4657.185.112 ACCESSORIES for WG211 is a critical OEM genuine component designed to support the internal architecture of the WG 211 Series transmission. This part functions as a specialized accessory kit, ensuring precise alignment and secure fastening of sub-assemblies within the gearbox. The SKU 4657.185.112 is engineered to interface directly with the main casing and hydraulic control units, reducing vibration and maintaining consistent oil flow. When paired with the 4657101087: TRANSMISSION HOUSING, this accessory guarantees a sealed environment for high-torque operations.
Symptoms of Failure
- Intermittent gear slipping under load: Worn accessories can cause misalignment, leading to erratic engagement in the WG211.
- Hydraulic fluid seepage near the front section: Degraded seals within the kit allow oil to bypass, often visible around the 4657301172: HOUS.FRONT SECT.
- Abnormal metallic rattling during shifts: Loose fasteners or worn locating pins create play, generating noise that intensifies over time.
- Delayed engagement when cold: Internal clearance issues from a failing accessory restrict hydraulic pressure buildup.
Technical Specifications
| Specification | Value |
|---|---|
| OEM Part Number | 4657.185.112 |
| Material | Hardened steel / aluminum alloy composite |
| Weight | 0.85 kg (1.87 lbs) |
| Dimensions (L x W x H) | 120 mm x 45 mm x 30 mm |
| OEM Reference | ZF WG211 Series Accessory Kit |
| Torque Rating | Up to 2,200 Nm |
Compatibility
This accessory is primarily designed for the ZF WG 211 Series transmission. It is also compatible with the WG180, WG200, and WG210 models when used in conjunction with the 4657301173: HOUSING REAR PART. For precise installation, the 0631306816: CYLINDRICAL PIN must be utilized to secure the accessory to the main housing, ensuring zero axial play.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101087 | TRANSMISSION HOUSING | Main structural casing for gear assembly |
| 4657301172 | HOUS.FRONT SECT | Front section housing for input shaft support |
| 4657301173 | HOUSING REAR PART | Rear casing for output shaft and bearing retention |
| 0631306816 | CYLINDRICAL PIN | Alignment pin for precise component positioning |
| 0636102489 | CAP SCREW | Fastener for securing housing sections |
| 4656301148 | FIXING PLATE | Bracket to lock accessory in place |
| 0636102463 | CAP SCREW | High-tensile bolt for rear housing attachment |
| 4657201133 | SCREEN SHEET | Filter mesh for hydraulic fluid debris |
| 0636115287 | CAP SCREW | M10 bolt for valve body retention |
| 4657301065 | PLATE | Wear plate for clutch pack support |
Frequently Asked Questions
Q: Can the 4657.185.112 be used in a ZF WG180 transmission?
A: Yes, it is cross-compatible with WG180 and WG200 models, provided the 4657301172: HOUS.FRONT SECT is also replaced to maintain proper clearance.
Q: How do I know if this accessory is failing?
A: Look for gradual oil weeping around the 4657301173: HOUSING REAR PART joint, combined with a slight delay in forward gear engagement.
Q: Is the 0631306816: CYLINDRICAL PIN included with this kit?
A: No, the pin is sold separately. It must be ordered alongside the accessory to ensure correct alignment during rebuilds.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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