Overview
The ZF 4699.298.015 INPUT (SKU: 4699.298.015) is a critical OEM genuine component engineered for the primary power transfer stage within heavy-duty ZF transmissions. This input shaft assembly receives torque directly from the engine coupling, channeling rotational force into the planetary gear sets. As the first point of mechanical engagement, it must withstand high cyclic loads and thermal stress. When replacing this unit, always inspect the mating 4699101070 HOUSING for wear, as misalignment can accelerate input shaft failure. The 4699.298.015 is precision-machined to factory tolerances, ensuring seamless integration with downstream components in construction machinery drivelines.
Symptoms of Failure
- Transmission input shaft oil leaks: Worn seals or shaft surface scoring allow hydraulic fluid to escape near the bell housing, often visible as drips after shutdown.
- Hard shifting or gear slipping under load: A damaged input shaft can cause intermittent power loss, especially when climbing grades or moving heavy material.
- Abnormal vibration at engine idle: Bearing journal wear on the 4699.298.015 produces low-frequency rumble that intensifies with RPM, indicating imminent failure.
- Metallic debris in transmission fluid: Flaking from the splined section contaminates the oil, often accompanied by a burnt odor during operation.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 4699.298.015 |
| OEM Reference | ZF 4699.298.015 |
| Material | Case-hardened alloy steel (20MnCr5 equivalent) |
| Overall Length | 285 mm |
| Spline Diameter | 42 mm (involute spline) |
| Weight | 4.8 kg |
| Surface Treatment | Black oxide + phosphate coating |
| Max Torque Capacity | 2,200 Nm |
Compatibility
This input shaft is designed for ZF WG-series transmissions commonly used in wheel loaders, graders, and dump trucks. Verified compatible models include WG180, WG200, and WG210 series. It also fits select ZF 4WG-200 and ZF 6WG-250 variants. For proper assembly, always pair with the 4699301146 HOUSING and secure using the 0636101411 CAP SCREW kit. The 4699309085 HOUSING COVER must also be inspected for cracks during installation to prevent contamination.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4699101070 | HOUSING | Encloses input shaft assembly |
| 4699301146 | HOUSING | Intermediate support housing |
| 4699309085 | HOUSING COVER | Seals the rear housing cavity |
| 0636101411 | CAP SCREW | Fastens housing to transmission |
| 0631302212 | CYLINDRICAL PIN | Aligns housing components |
| 0634801038 | SEALING RING | Prevents oil leakage at joints |
| 0501319149 | SCREW PLUG | Closes oil passages |
| 0637885613 | BREATHER | Equalizes internal pressure |
| 0730365801 | TYPE PLATE | Identification label for transmission |
| 4699102130 | INPUT | Alternate input shaft variant |
