Overview
The ZF 4699.172.106 STEERING PARTS component is a critical OEM genuine part engineered for precision steering control within ZF construction machinery drivelines. This steering assembly interfaces directly with the transmission’s hydraulic circuit, modulating oil flow to enable smooth directional changes and load-handling stability. Specifically, the 4699.172.106 part regulates pressure to the steering cylinder, ensuring responsive articulation in heavy equipment. As a genuine ZF unit, it guarantees exact fitment and durability under high-torque conditions. This SKU is commonly paired with the 4699004116: GK25 II gearbox unit, which transfers rotational force from the transmission to the steering mechanism. Additionally, the 4699101124: HOUSING encloses the steering valve assembly, protecting internal components from debris and contamination.
Symptoms of Failure
When the ZF 4699.172.106 steering part deteriorates, operators may notice these specific failure indicators:
- Erratic steering response or “jerky” articulation: Worn internal seals cause inconsistent hydraulic pressure, leading to unpredictable machine movement during low-speed maneuvers.
- Visible oil seepage around the steering valve body: Cracks or degraded O-rings allow hydraulic fluid to escape, often pooling near the 4699102132: INPUT shaft connection.
- Increased steering effort or “heavy” wheel feel: Blocked internal passages reduce flow to the 4699103026: OUTPUT port, requiring more force to turn the machine.
- Unusual whining or groaning noises from the steering circuit: Air entrainment due to failed seals creates cavitation sounds, especially during full-lock turns.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 4699.172.106 |
| Component Type | Steering Valve / Control Spool |
| Material | Hardened Steel / Aluminum Alloy Body |
| Weight | 2.8 kg (6.2 lbs) |
| Dimensions (L x W x H) | 180 mm x 95 mm x 75 mm |
| OEM Reference | ZF 4699.172.106 |
| Operating Pressure | 250 bar (max) |
| Seal Type | NBR / Viton O-Ring |
Compatibility
This steering part is engineered for ZF transmissions commonly used in wheel loaders, excavators, and telehandlers. It is compatible with the following ZF transmission models:
- WG180 series (WG180/181/182)
- WG200 series (WG200/201/202)
- WG250 series (WG250/251)
- ERGO 200 series (ERGO 200/210)
Always verify your transmission serial number before ordering. The 4699.172.106 replaces earlier revisions of the steering spool assembly and is backward-compatible with most post-2010 ZF drivelines.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4699004116 | GK25 II | Gearbox unit transferring torque to steering mechanism |
| 4699101124 | HOUSING | Encloses steering valve assembly |
| 4699102132 | INPUT | Input shaft connecting to steering pump |
| 4699103026 | OUTPUT | Output port delivering hydraulic fluid to cylinder |
| 4699105107 | TURNTABLE BEARING | Rotary support for steering column |
| 4699301209 | HOUSING | Secondary housing for steering control block |
| 4699301015 | HOUSING COVER | Seals the top of the steering valve housing |
| 4699301085 | COVER | Protective cap for steering port |
| 4699301014 | THREAD PROTECTIVE SHIELD | Prevents thread damage during installation |
| 0634303980 | O-RING | Seals hydraulic connections |
