Overview
The ZF 4699.372.074 STEERING PINION is a critical control component within the WG100, WG130, and WG131 transmission assemblies. This OEM genuine part translates rotational input from the steering system into precise linear motion, engaging the shift mechanism that governs gear selection. As a precision-machined element, the pinion interfaces directly with the steering housing and bearing cover to ensure smooth, responsive shifting under load. The SKU 4699.372.074 is engineered to ZF’s exacting tolerances, making it a direct replacement for worn units in heavy-duty industrial applications.
Symptoms of Failure
- Erratic gear engagement or delayed shifting: When the steering pinion wears, its teeth lose profile, causing hesitation or missed shifts during operation.
- Oil leaks around the steering housing: A degraded pinion shaft seal allows transmission fluid to escape, often visible as drips near the 4699101046: HOUSING interface.
- Increased steering effort or binding: Worn splines or corrosion on the pinion create resistance, making gear changes feel stiff or unresponsive.
- Metallic grinding noises during shifting: Metal-on-metal contact from a failing pinion produces audible sounds, indicating imminent failure of the 4699301017: BEARING COVER or adjacent components.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 4699.372.074 |
| Material | Case-hardened alloy steel |
| Overall Length | 185 mm (estimated) |
| Spline Diameter | 28 mm (estimated) |
| Weight | 1.2 kg (estimated) |
| OEM Reference | ZF 4699.372.074 |
| Surface Treatment | Phosphate coating for corrosion resistance |
Compatibility
This steering pinion is specifically designed for ZF WG-series transmissions, including the WG100, WG130, and WG131 models. It also fits select variants of the WG180 and WG200 series where the steering housing configuration matches. For proper installation, verify that the 4699301109: HOUSING and 4699301085: COVER are free from damage, as these parts work in tandem with the pinion to maintain alignment and seal integrity.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4699101046 | HOUSING | Encloses and supports the steering pinion assembly |
| 4699301109 | HOUSING | Secondary housing for shift mechanism alignment |
| 4699301017 | BEARING COVER | Secures pinion bearings and prevents axial play |
| 4699301085 | COVER | Protects internal components from debris |
| 4699301014 | THREAD PROTECTIVE SHIELD | Guards pinion threads during installation |
| 0634303141 | O-RING | Seals the pinion-to-housing interface |
| 0734307407 | PROTECTION CAP | Covers exposed pinion end during transport |
| 0634309600 | SHAFT SEAL | Prevents fluid leakage along the pinion shaft |
| 0637885612 | BREATHER | Equalizes pressure inside the transmission housing |
| 0636102023 | CAP SCREW | Fastens the bearing cover to the housing |
ZF 4699.372.074 STEERING PINION – Gear RFQ Support
Use ZF 4699.372.074 STEERING PINION as the reference when requesting gear support. Photos, visible markings, and transmission context help reduce sourcing uncertainty.
Part-Number Summary
Use ZF number 4699.372.074 when sending your RFQ. PartsZF can review dotted, spaced, and compact number formats against the available product and documentation records.
Application Context
- Illustration section: LOOSE PARTS
- Illustration section: KIT STEERING GEAR SET
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 | 4699.372.074 |
|---|---|
| Normalized SKU | 4699372074 |
| Part name | STEERING PINION |
| 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.
Related Parts
- ZF 4661.302.010 GEAR
- ZF 2094.306.024 GEAR SHIFT RAIL
- ZF 4642.353.026 SPUR GEAR
- ZF 4143.142.013 GEAR SHIFT SENSOR
- ZF 4143.142.022 GEAR SHIFT SENSOR
