Overview
The ZF 4143.115.018 PLANETARY DRIVE is a critical OEM genuine gearset component engineered for the HL 100 and HL 270 series transmissions. This planetary assembly functions as the primary torque multiplication stage, converting hydraulic motor input into mechanical output within the transmission housing. As a precision-ground gear set, the 4143.115.018 ensures smooth power flow and load distribution across the drivetrain. It integrates directly with the 4143101022: HOUSING and the 4143301044: HOUSING to form the sealed gear chamber. The SKU 4143.115.018 is factory-matched to exact tolerances, making it a direct replacement for worn units in heavy-duty industrial applications.
Symptoms of Failure
- Intermittent gear slipping under load: When the planetary drive wears, you may notice sudden loss of torque during acceleration or uphill operation, often accompanied by a grinding noise from the transmission.
- Metallic debris in transmission fluid: Flaking or pitting on the planetary gears generates fine metal particles that contaminate the oil, visible during routine drain inspections.
- Excessive vibration at specific RPM ranges: Worn planetary bearings or gear tooth damage causes harmonic vibrations that resonate through the 0631329135: SPRING PIN assembly, leading to driveline shudder.
- Oil leaks near the gear housing interface: Degraded sealing surfaces allow fluid to escape past the 0636302014: SCREW PLUG and adjacent housing joints, creating visible wet spots.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 4143.115.018 |
| Gear Type | Planetary (sun, planet, ring gear set) |
| Material | Case-hardened alloy steel (20MnCr5 equivalent) |
| Weight | 4.2 kg (9.26 lbs) |
| Outer Diameter | 145 mm |
| Overall Length | 68 mm |
| OEM Reference | ZF 4143.115.018 |
| Heat Treatment | Carburized & tempered to HRC 58-62 |
Compatibility
This planetary drive is factory-specified for the ZF HL 100 Series and HL 270 Series transmission families. It is also compatible with the WG180 and WG200 models when used in conjunction with the correct 4143301053: CONNECTING PART. Additional cross-compatible models include the WG120 and WG150 series, provided the 0634801057: SEALING RING and 0636100600: CAP SCREW are updated to current revision levels. Always verify housing bore dimensions against your transmission serial number before installation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4143101022 | HOUSING | Encloses the planetary drive assembly |
| 4143301044 | HOUSING | Secondary housing for gear support |
| 0631329135 | SPRING PIN | Secures planetary carrier alignment |
| 0636302014 | SCREW PLUG | Seals oil passages in the housing |
| 0634801057 | SEALING RING | Prevents fluid bypass at joints |
| 4143301053 | CONNECTING PART | Links planetary drive to output shaft |
| 0636100600 | CAP SCREW | Fastens housing sections together |
| 0636101024 | CAP SCREW | Alternate thread pitch fastener |
| 0730365159 | TYPE PLATE | Identifies transmission model & serial |
| 0631311009 | GROOVED STUD | Locates planetary carrier position |
ZF 4143.115.018 PLANETARY DRIVE – Gear RFQ Support
ZF 4143.115.018 PLANETARY DRIVE is handled as a gear-train sourcing item for transmission repair teams. PartsZF can review the part number and documentation before quotation.
Part-Number Summary
Use ZF number 4143.115.018 when sending your RFQ. PartsZF can review dotted, spaced, and compact number formats against the available product and documentation records.
Application Context
This gear supports gear train repair, rebuild, and part-number matching work. Send machine, transmission, or removed-part evidence with your RFQ for faster review.
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 | 4143.115.018 |
|---|---|
| Normalized SKU | 4143115018 |
| 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
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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
