Overview
The ZF 4699.172.084 STEERING PARTS component is a precision-engineered OEM genuine part designed for the demanding environment of construction machinery. This steering system element plays a critical role in translating hydraulic pressure into precise directional control, directly influencing the maneuverability and safety of heavy equipment. As an integral part of the transmission assembly, it ensures that power is efficiently directed to the steering mechanism without lag or loss. The SKU 4699.172.084 is manufactured to ZF’s exacting tolerances, guaranteeing a direct fit and long service life in wheel loaders, graders, and other off-highway vehicles.
Symptoms of Failure
When the ZF 4699.172.084 steering part begins to wear, operators will notice distinct performance issues. Recognizing these failure symptoms early can prevent costly downtime:
- Erratic steering response or “jerky” movement: The machine may hesitate or lurch during turns, indicating internal wear or hydraulic bypass within the steering assembly.
- Visible hydraulic fluid leaks near the steering gear: Worn seals or housing cracks allow oil to escape, leading to low fluid levels and potential system cavitation.
- Increased steering effort or heavy steering: The operator must apply more force to the wheel, suggesting internal binding or loss of hydraulic pressure due to a failing component.
- Unusual whining or grinding noises during turns: Metal-on-metal contact from worn bearings or scored surfaces produces audible distress signals.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number | 4699.172.084 |
| Type | Steering Parts (Valve/Spool Assembly) |
| Material | High-grade alloy steel with hardened surface |
| Weight | Approx. 2.8 kg (6.2 lbs) |
| Dimensions (L x W x H) | 185 mm x 95 mm x 75 mm |
| OEM Reference | ZF 4699.172.084 |
| Sealing Surface Finish | Ra ≤ 0.4 µm |
Compatibility
This OEM genuine steering part is engineered for use in ZF’s heavy-duty transmission series commonly found in construction machinery. It is compatible with the following ZF transmission models:
- WG180 – Widely used in wheel loaders and telehandlers.
- WG200 – Found in graders and compactors.
- WG211 – Applied in larger articulated dump trucks.
- 4WG200 – Four-speed variant for heavy earthmoving equipment.
During installation, this steering component integrates directly with the 4699101044: HOUSING and the 4699301111: HOUSING to form a sealed hydraulic chamber. The 4699301054: HOUSING COVER and 4699301055: COVER complete the assembly, protecting internal components from contamination.
Related Components
For a complete steering system overhaul, consider these companion parts that are frequently replaced alongside the 4699.172.084:
| Part Number | Name | Function |
|---|---|---|
| 4699101044 | HOUSING | Main structural body for steering valve assembly |
| 4699301111 | HOUSING | Secondary housing for hydraulic flow channels |
| 4699301054 | HOUSING COVER | Seals the top of the steering housing |
| 4699301055 | COVER | Protects internal spool from debris |
| 4699301014 | THREAD PROTECTIVE SHIELD | Prevents thread damage during installation |
| 0634303996 | O-RING | Static seal between housing interfaces |
| 0734307408 | PROTECTION CAP | Covers exposed ports during transport |
| 0634309600 | SHAFT SEAL | Dynamic seal for rotating steering shaft |
| 0630502032 | RETAINING RING | Secures bearings and spacers in position |
| 0637885612 | BREATHER | Equalizes pressure inside the steering housing |
