Overview
The ZF 4699.302.207 DRIVE PINION (SKU: 4699.302.207) is a precision-machined component engineered for the input shaft assembly of ZF WG100, WG130, and WG131 transmissions. This OEM genuine part transfers rotational force from the engine to the planetary gearset, ensuring smooth torque delivery and load distribution. As a critical wear item, the drive pinion interfaces directly with the 4699101099 HOUSING and the 4699301177 HOUSING, where it must maintain precise axial alignment to prevent premature gear tooth fatigue. Manufactured to ZF’s original specifications, this pinion replaces worn units in both on-highway and industrial driveline applications.
Symptoms of Failure
- Whining or growling noise during acceleration: A worn drive pinion produces a distinct metallic whine that increases with engine RPM, often misdiagnosed as a bearing issue. This indicates pitting or spalling on the pinion gear teeth.
- Transmission gear slippage under load: When the pinion’s helical teeth lose their original profile, the gear train can momentarily lose engagement, causing intermittent slipping during uphill climbs or heavy towing.
- Metal particles in transmission fluid: Flaking from the pinion’s hardened surface contaminates the oil, visible as glitter-like debris on the dipstick or during a drain. This accelerates wear on the 0636102013 CAP SCREW and adjacent housings.
- Vibration at specific road speeds: A damaged pinion creates harmonic vibrations felt through the shift lever or floorboard, typically between 45-55 mph, signaling uneven tooth contact with the mating gear.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 4699.302.207 |
| Material | Case-hardened alloy steel (20MnCr5 equivalent) |
| Tooth Count | 17 (helical, pressure angle 20°) |
| Overall Length | 98.5 mm |
| Shaft Diameter | 32.0 mm (bearing journal) |
| Weight | 0.85 kg |
| OEM Reference | ZF 4699.302.207 |
| Hardness | 58-62 HRC (case depth 0.8 mm) |
Compatibility
This drive pinion is designed exclusively for the ZF WG100, WG130, and WG131 series transmissions used in medium-duty trucks, buses, and agricultural equipment. It is not interchangeable with WG180 or WG200 models due to different shaft diameters and tooth profiles. For proper installation, ensure the 4699301178 HOUSING COVER is inspected for wear at the pinion bore. Always replace the pinion in conjunction with the 0631302072 CYLINDRICAL PIN to maintain timing accuracy.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4699101099 | HOUSING | Encloses the pinion and gearset; provides bearing support |
| 4699301177 | HOUSING | Secondary housing for output shaft alignment |
| 4699301178 | HOUSING COVER | Seals the pinion access port; retains lubricant |
| 0636102013 | CAP SCREW | Secures housing cover with M10 thread |
| 0631302072 | CYLINDRICAL PIN | Locates pinion timing during assembly |
| 0501319149 | SCREW PLUG | Seals oil gallery access hole |
| 0636302013 | SCREW PLUG | Magnetic drain plug for debris collection |
| 0634801038 | SEALING RING | Prevents oil leakage at housing joints |
| 0637885612 | BREATHER | Equalizes internal pressure; vents moisture |
| 0730365266 | TYPE PLATE | Identification tag with transmission serial number |
ZF 4699.302.207 DRIVE PINION – Gear RFQ Support
Use ZF 4699.302.207 DRIVE PINION as the reference when requesting gear support. Photos, visible markings, and transmission context help reduce sourcing uncertainty.
Part-Number Summary
Use ZF number 4699.302.207 when sending your RFQ. PartsZF can review dotted, spaced, and compact number formats against the available product and documentation records.
Application Context
- Illustration section: INPUT
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 | 4699.302.207 |
|---|---|
| Normalized SKU | 4699302207 |
| Part name | DRIVE 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
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- 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
