Overview
The ZF 4699.172.047 STEERING PARTS component is a critical OEM genuine element within the steering control assembly of heavy-duty construction machinery transmissions. This precision-engineered part directly governs hydraulic flow to the steering cylinders, ensuring responsive and accurate machine articulation. As an integral component of the steering valve body, the 4699.172.047 interfaces with the main 4699101081: HOUSING to maintain proper pressure regulation. When installed correctly, this part eliminates steering lag and provides consistent torque transfer, which is essential for loader and grader operations. The SKU 4699.172.047 is manufactured to ZF’s exacting tolerances, guaranteeing a direct fit without modification.
Symptoms of Failure
- Erratic steering response or jerky articulation: When the 4699.172.047 wears internally, operators often report unpredictable steering behavior, especially under load. This manifests as sudden lurching or delayed reaction when turning the wheel.
- Hydraulic fluid contamination from internal wear: Degraded steering parts shed metallic particles into the transmission oil. This symptom is frequently searched as “ZF steering valve debris in oil” and can accelerate damage to the 0634306309: O-RING and adjacent seals.
- Persistent oil seepage around the steering housing: A failing 4699.172.047 often causes pressure spikes that compromise the 0501329881: HOUSING COVER gasket, leading to visible drips or wet spots on the transmission exterior.
- Increased steering effort at low engine RPM: Operators may notice that the steering wheel becomes heavy or requires excessive force when idling, indicating the part is no longer maintaining proper pilot pressure.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number (SKU) | 4699.172.047 |
| Material | Hardened alloy steel with anti-corrosion coating |
| Weight | 0.85 kg (1.87 lbs) |
| Dimensions (L x W x H) | 95 mm x 45 mm x 35 mm |
| OEM Reference | ZF 4699.172.047 (Genuine) |
| Operating Pressure | Up to 250 bar (3,625 psi) |
| Temperature Range | -40°C to +120°C |
| Related Sealing Kit | 0634801038: SEALING RING |
| Associated Plugs | 0501319149: SCREW PLUG & 0636302022: SCREW PLUG |
| Identification | 0730365801: TYPE PLATE |
| Assembly Group | 4699001126: GK10 & 4699102064: INPUT |
Compatibility
This OEM genuine steering part is primarily designed for ZF WG180 and WG200 series transmissions commonly found in construction machinery such as wheel loaders, telehandlers, and graders. It also fits select models of the ZF 4WG-200 and 4WG-180 power shift transmissions. The 4699.172.047 is compatible with machines that utilize the 0637885612: BREATHER assembly for pressure equalization. Always verify your transmission serial number against ZF’s OEM catalog to ensure correct fitment, as variations exist between early and late production units.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4699101081 | HOUSING | Main steering valve body enclosure |
| 0501329881 | HOUSING COVER | Seals the steering assembly top |
| 0634306309 | O-RING | Hydraulic seal between components |
| 0637885612 | BREATHER | Pressure vent for transmission housing |
| 0501319149 | SCREW PLUG | Oil port closure (M18) |
| 0636302022 | SCREW PLUG | Oil port closure (M22) |
| 0634801038 | SEALING RING | Copper washer for plug sealing |
| 0730365801 | TYPE PLATE | Identification label for transmission |
| 4699001126 | GK10 | Gear kit for steering pump drive |
| 4699102064 | INPUT | Steering input shaft assembly |
