Overview
The ZF 4143.115.403 PLANETARY DRIVE is a critical torque-multiplying assembly within the ZF HL 100 and HL 270 series transmissions. This OEM genuine part, identified by SKU 4143.115.403, sits directly between the torque converter and the output shaft housing, managing gear reduction and load distribution. It interfaces seamlessly with the 4143101031 HOUSING and the 4143301055 HOUSING, ensuring precise alignment of planetary gears. Without this drive, the transmission cannot achieve its rated torque capacity or smooth power flow.
Symptoms of Failure
- Erratic gear slipping under load: When the planetary drive wears, you may notice intermittent loss of power during acceleration, especially in heavy-duty applications. This is often misdiagnosed as a clutch issue.
- Metallic grinding or whining noise: A high-pitched whine from the transmission housing, particularly in lower gears, indicates worn planetary bearings or gear teeth within the 4143.115.403 unit.
- Oil contamination with metallic debris: Inspect the transmission fluid for silver or bronze particles. This points to internal gear degradation, often accompanied by failure of the 0631329135 SPRING PIN that secures the carrier.
- Delayed engagement or harsh shifting: A failing planetary drive can cause noticeable hesitation when shifting from neutral to drive or reverse, as the gear set struggles to mesh properly.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number | 4143.115.403 |
| OEM Reference | ZF 4143.115.403 |
| Material | Case-hardened alloy steel (gears), aluminum carrier |
| Weight | Approx. 8.7 kg (19.2 lbs) |
| Outer Diameter | 185 mm |
| Overall Length | 142 mm |
| Number of Planets | 3 (standard configuration) |
| Max Input Torque | 1,200 Nm |
Compatibility
This planetary drive is engineered for the ZF HL 100 and HL 270 series, but it also fits select WG transmission models that share the same planetary carrier architecture. Verified compatible transmissions include: WG180, WG200, WG210, and WG250. It is also used in certain off-highway and industrial drivelines where the 4143298040 CASE is employed. Always cross-reference your transmission serial number with the OEM parts list before installation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4143101031 | HOUSING | Encloses the planetary drive and supports input shaft |
| 4143301055 | HOUSING | Intermediate housing for gear alignment |
| 4143298040 | CASE | Outer casing for planetary assembly |
| 0631329135 | SPRING PIN | Secures planetary carrier to shaft |
| 0636101024 | CAP SCREW | Fastens housing to transmission body |
| 4475280099 | SCREW PLUG | Seals oil passages in the housing |
| 0634303266 | O-RING | Prevents oil leaks between housings |
| 4143301045 | SCREEN SHEET | Filters debris from transmission fluid |
| 0636420051 | COUNTERSUNK SCREW | Mounts screen sheet in place |
| 0501200072 | VENT VALVE | Regulates internal pressure |
ZF 4143.115.403 PLANETARY DRIVE – Gear RFQ Support
Use ZF 4143.115.403 PLANETARY DRIVE as the reference when requesting gear support. Photos, visible markings, and transmission context help reduce sourcing uncertainty.
Part-Number Summary
Use ZF number 4143.115.403 when sending your RFQ. PartsZF can review dotted, spaced, and compact number formats against the available product and documentation records.
Application Context
- Illustration section: HL 250
- Illustration section: PLANETARY DRIVE
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 | 4143.115.403 |
|---|---|
| Normalized SKU | 4143115403 |
| Part name | PLANETARY DRIVE |
| 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
