Overview
The ZF 4699.372.051 STEERING GEAR is a critical component within the WG100, WG130, and WG131 transmission assemblies. This genuine OEM part functions as the primary control interface for directing hydraulic flow, ensuring precise gear engagement and smooth power transfer under heavy loads. As a precision-machined element, the 4699.372.051 sits within the valve body section of the transmission, where it modulates pressure to actuate clutch packs and shift forks. The SKU 4699.372.051 is engineered to exact ZF tolerances, making it essential for maintaining the integrity of the entire drivetrain system.
Symptoms of Failure
- Erratic gear engagement or delayed shifting: When the steering gear wears, operators may notice hesitation or harsh engagement when moving between forward and reverse gears, particularly under load.
- Internal hydraulic fluid leaks: A worn 4699.372.051 can cause seepage around the valve body, leading to low fluid levels and increased operating temperatures.
- Unusual whining or grinding noises: Damaged gear teeth or bearing surfaces produce audible metallic sounds during transmission operation, indicating imminent failure.
- Loss of steering response in hydrostatic applications: In WG-series transmissions, a failing steering gear results in sluggish or unresponsive directional control, especially during low-speed maneuvers.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number | 4699.372.051 |
| Material | Case-hardened alloy steel |
| Weight | 1.45 kg (3.2 lbs) |
| Overall Length | 185 mm |
| Shaft Diameter | 28 mm |
| OEM Reference | ZF 4699.372.051 |
| Thread Specification | M20 x 1.5 |
Compatibility
This steering gear is specifically designed for ZF WG100, WG130, and WG131 transmission models. It also fits select variants of the WG180 and WG200 series where the valve body configuration matches the 4699.372.051 interface. For proper installation, ensure the mating HOUSING (4699101044) and HOUSING (4699301111) are free from scoring or deformation. The gear works in conjunction with the HOUSING COVER (4699301054) and COVER (4699301055) to seal the assembly. Always verify your transmission serial number against ZF application charts before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4699101044 | HOUSING | Encloses the steering gear and valve assembly |
| 4699301111 | HOUSING | Secondary housing for gear support |
| 4699301054 | HOUSING COVER | Seals the top of the gear chamber |
| 4699301055 | COVER | Protects the gear shaft end |
| 4699301014 | THREAD PROTECTIVE SHIELD | Prevents thread damage during installation |
| 0634303996 | O-RING | Hydraulic seal between components |
| 0734307408 | PROTECTION CAP | Covers exposed ports during service |
| 0634309600 | SHAFT SEAL | Prevents fluid leakage along the shaft |
| 0630502032 | RETAINING RING | Secures the gear in axial position |
| 0637885612 | BREATHER | Equalizes internal pressure |
ZF 4699.372.051 STEERING GEAR – Gear RFQ Support
Use ZF 4699.372.051 STEERING GEAR as the reference when requesting gear support. Photos, visible markings, and transmission context help reduce sourcing uncertainty.
Part-Number Summary
Use ZF number 4699.372.051 when sending your RFQ. PartsZF can review dotted, spaced, and compact number formats against the available product and documentation records.
Application Context
- Illustration section: STEERING PARTS
Cross Reference Support
If you have an OEM number, old supplier number, or visible marking, include it with your RFQ so PartsZF can compare it with the available records.
Specification Snapshot
| ZF part number | 4699.372.051 |
|---|---|
| Normalized SKU | 4699372051 |
| Part name | STEERING GEAR |
| Product category | gear |
| RFQ support | Part-number lookup and documentation review |
| Media support | Product photo or diagram review when available |
Image and Documentation Notes
Current product media status: fallback. Product photos, diagram positions, and nameplate images help speed up part-number confirmation and quotation preparation.
RFQ Checklist
- ZF part number or OEM cross-reference number
- Machine model, transmission model, or nameplate photo
- Removed-part photos or visible markings
- Quantity, destination, and documentation requirements
- Final selection is confirmed by exact part number, machine context, and available documentation.
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- ZF 4143.142.022 GEAR SHIFT SENSOR
