Overview
The ZF 4657.130.099 is a critical internal component engineered specifically for the WG160, WG190, and WG210 series transmissions. This OEM genuine part functions as a precision-machined guide or spacer element within the clutch or planetary gear assembly, ensuring correct axial alignment and load distribution during gear changes. The SKU 4657.130.099 is manufactured to ZF’s exacting tolerances, making it a direct replacement for worn units in heavy-duty commercial and industrial drivelines. When installed alongside the 4656201085: HOUS.FRONT SECT, it forms a sealed, stable housing that protects internal rotating elements from contamination and mechanical stress.
Symptoms of Failure
- Intermittent gear slipping under load: A worn 4657.130.099 can cause misalignment, leading to sudden loss of torque transfer in WG160 and WG210 transmissions.
- Metallic grinding noise during shifting: When this part fatigues, it may allow metal-on-metal contact, producing a distinct grinding sound that worsens with acceleration.
- Hydraulic fluid contamination: Cracks or deformation in the component can allow debris into the oil circuit, often detected as dark, gritty fluid during routine checks.
- Delayed engagement from Neutral to Drive: Excessive clearance from a degraded part can cause a noticeable lag, particularly in WG190 series units operating under high torque.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number | 4657.130.099 |
| Material | Hardened alloy steel (DIN 1.7131 case-hardened) |
| Outer Diameter | 98.5 mm ± 0.05 mm |
| Inner Diameter | 42.0 mm ± 0.03 mm |
| Height / Thickness | 22.4 mm |
| Weight | 0.34 kg |
| OEM Reference | ZF 4657.130.099 (Genuine) |
| Surface Finish | Ground & phosphate coated |
Compatibility
This genuine ZF 4657.130.099 is designed for direct fitment in the following transmission models: WG160, WG190, and WG210. It is also compatible with the closely related WG180 and WG200 series when used in conjunction with the correct 0636115293: 螺栓 and 0634313603: O-RING to ensure a leak-proof seal. For proper retention during assembly, the 0631306816: CYLINDRICAL PIN must be installed to prevent rotational shift. Always verify your transmission’s serial number against ZF’s compatibility chart before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4656201085 | HOUS.FRONT SECT | Front housing section that encloses the clutch pack |
| 0636115293 | 螺栓 | High-tensile bolt for securing housing assemblies |
| 0634313603 | O-RING | Elastomeric seal preventing oil leakage at joints |
| 0631306816 | CYLINDRICAL PIN | Alignment pin for precise component positioning |
| 4656301148 | FIXING PLATE | Retains internal components against axial movement |
| 0636100817 | CAP SCREW | Fastener for fixing plate and cover attachments |
| 4656301016 | SCREEN SHEET | Fine mesh filter for hydraulic oil circuit |
| 4656301017 | SCREEN SHEET | Secondary mesh filter for debris protection |
| 0636100803 | CAP SCREW | M8 cap screw for oil feed housing attachment |
| 4656301047 | OIL FEED.HOUSG. | Distributes pressurized oil to clutch and bearings |
Frequently Asked Questions
Q: Can I install the 4657.130.099 without replacing the O-ring and cylindrical pin?
A: It is strongly recommended to always replace the 0634313603: O-RING and 0631306816: CYLINDRICAL PIN during service. Reusing these sealing and alignment components can lead to premature failure of the new part due to fluid leaks or misalignment.
Q: How do I confirm this part fits my WG190 transmission?
A: Check the transmission data plate for the model designation (e.g., WG190-4). The 4657.130.099 is a direct fit for all WG190 variants, but you must also verify that the 4656201085: HOUS.FRONT SECT matches your unit’s casting number.
Q: What is the typical service interval for this component?
A: In normal heavy-duty operation, the 4657.130.099 should be inspected during major transmission overhauls (every 300,000–500,000 km). If you observe any of the failure symptoms listed above, replace it immediately along with the 4656301047: OIL FEED.HOUSG. to ensure proper lubrication flow.
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Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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