Overview
The ZF 4699.172.024 STEERING PARTS component is a critical OEM genuine part designed for the hydraulic steering control system within ZF construction machinery transmissions. This precision-engineered part regulates oil flow to the steering clutch pack, ensuring smooth directional changes and load-holding capability under heavy stress. The SKU 4699.172.024 sits directly in the valve body assembly, interfacing with the main control housing to modulate pressure. For optimal assembly integrity, this part is frequently installed alongside the 4699101044: HOUSING and the 4699301111: HOUSING, which provide the structural enclosure for the steering circuit.
Symptoms of Failure
- Erratic steering response or delayed engagement: When the 4699.172.024 wears, operators notice a lag between steering input and machine movement, often accompanied by jerky starts.
- Hydraulic oil seepage around the valve body: A common failure mode is internal seal degradation, leading to visible oil leaks near the steering section. This can be exacerbated if the adjacent 4699301054: HOUSING COVER or 4699301055: COVER is also compromised.
- Increased steering effort or “spongy” feel: Worn internal spools or bores cause pressure loss, making the steering wheel feel loose or requiring excessive force to turn.
- Unintended machine creep in neutral: A failing steering part can allow residual pressure to partially engage clutches, causing the vehicle to drift when the steering wheel is centered.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number | 4699.172.024 |
| Type | Steering Control Valve Component |
| Material | Hardened Steel / Aluminum Alloy |
| Weight | 0.85 kg (1.87 lbs) |
| Length | 95 mm |
| Width | 55 mm |
| Height | 40 mm |
| OEM Reference | ZF 4699.172.024 |
| Seal Compatibility | Requires 0634303996: O-RING and 0634309600: SHAFT SEAL |
Compatibility
This genuine ZF steering part is engineered for the WG180, WG200, and WG211 series powershift transmissions commonly found in wheel loaders, graders, and heavy forklifts. It also fits select models in the 4WG-200 and 6WG-200 families. Always verify the transmission serial number against the OEM parts catalog. For complete steering assembly rebuilds, consider the 4699301014: THREAD PROTECTIVE SHIELD and 0734307408: PROTECTION CAP to safeguard exposed threads during installation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4699101044 | HOUSING | Main steering valve housing |
| 4699301111 | HOUSING | Secondary housing for steering circuit |
| 4699301054 | HOUSING COVER | Seals the steering valve cavity |
| 4699301055 | COVER | Protective cover for steering assembly |
| 4699301014 | THREAD PROTECTIVE SHIELD | Prevents thread damage during service |
| 0634303996 | O-RING | Hydraulic seal for valve connections |
| 0734307408 | PROTECTION CAP | Caps unused hydraulic ports |
| 0634309600 | SHAFT SEAL | Prevents oil leakage along rotating shafts |
| 0630502032 | RETAINING RING | Secures internal valve components |
| 0637885612 | BREATHER | Equalizes pressure in the steering housing |
