Overview
This OEM genuine ZF 4656.183.149 is a precision-engineered component specifically designed for the WG 115 Series transmission. It serves as a critical internal sealing and alignment element within the gear train assembly, ensuring proper oil flow and preventing contamination between hydraulic circuits. The part number 4656.183.149 is manufactured to ZF’s original factory tolerances, guaranteeing a direct fit and long service life. This component works in concert with the 4656101037: TRANSMISSION HOUSING to maintain structural integrity under high torque loads.
Symptoms of Failure
- Erratic gear engagement or delayed shifting — When the 4656.183.149 wears, internal pressure drops can cause hesitation when shifting between forward and reverse gears.
- Oil seepage around the main case joint — A compromised seal leads to visible fluid leaks near the bell housing, often mistaken for a pan gasket failure.
- Whining or grinding noise during acceleration — Metal fatigue in this part allows vibration transfer, producing a distinct high-pitched sound under load.
- Transmission overheating — Reduced oil circulation due to a failing 4656.183.149 forces the system to work harder, raising operating temperatures.
Technical Specifications
| Specification | Value |
|---|---|
| OEM Part Number | 4656.183.149 |
| Material | Hardened alloy steel with corrosion-resistant coating |
| Weight | 0.85 kg (1.87 lbs) |
| Outer Diameter | 68.5 mm |
| Inner Diameter | 32.0 mm |
| Height | 24.3 mm |
| Compatible Series | WG 115, WG 180, WG 200 |
Compatibility
While primarily engineered for the WG 115 Series, the 4656.183.149 is also compatible with ZF WG180 and WG200 transmissions that share the same hydraulic control architecture. It integrates directly with the 4656201075: HOUS.FRONT SECT and the 4656201035: HOUSING REAR PART to form a sealed assembly. For heavy-duty applications, pairing this part with the 4472239178: HOUSING REAR PART ensures optimal alignment and leak prevention.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4656101037 | TRANSMISSION HOUSING | Main structural casing for gear and shaft support |
| 4656201075 | HOUS.FRONT SECT | Front section housing for input shaft bearing |
| 4656201035 | HOUSING REAR PART | Rear housing section for output shaft support |
| 4472239178 | HOUSING REAR PART | Alternate rear housing for heavy-duty variants |
| 0631306816 | CYLINDRICAL PIN | Alignment dowel for precise housing positioning |
| 4656301148 | FIXING PLATE | Secures internal components against axial movement |
| 0636100817 | CAP SCREW | High-tensile fastener for housing attachment |
| 4656301016 | SCREEN SHEET | Fine mesh filter for hydraulic fluid debris |
| 4656301017 | SCREEN SHEET | Secondary filter for high-pressure circuits |
| 0636100803 | CAP SCREW | M10 bolt for valve body mounting |
Frequently Asked Questions
Q: Can the 4656.183.149 be replaced without removing the entire transmission?
Yes, in most WG115 applications, this part is accessible after draining the fluid and removing the oil pan and valve body. However, we recommend inspecting the 4656201075: HOUS.FRONT SECT for wear simultaneously.
Q: What is the typical lifespan of this OEM part?
Under normal operating conditions and with proper fluid maintenance, the 4656.183.149 lasts 150,000 to 200,000 miles. Premature failure often indicates contamination or misalignment with the 4656201035: HOUSING REAR PART.
Q: Does this part require any special tools for installation?
Standard metric sockets and a torque wrench are sufficient. We recommend replacing the 0636100817: CAP SCREW and 0631306816: CYLINDRICAL PIN as a set to ensure proper clamping force.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
Request a Quote →
