Overview
The ZF 0750.115.381 NEEDLE CAGE is a precision-engineered OEM genuine component designed to maintain correct roller alignment within ZF heavy-duty transmissions. This needle cage sits between the planetary gear set and the output shaft, ensuring that needle rollers remain evenly spaced and properly lubricated under extreme torque loads. As a critical wear item in construction machinery drivelines, the SKU 0750.115.381 directly supports load distribution and rotational stability. When paired with a 5838109012: DIFFERENTIAL, this cage prevents metal-on-metal contact that would otherwise accelerate gear fatigue.
Symptoms of Failure
- Transmission whining or grinding noise during load shifts — Worn needle cages allow roller skewing, producing a distinct metallic chatter under acceleration.
- Intermittent gear slipping in forward or reverse — As the cage loses structural integrity, roller spacing becomes irregular, causing momentary torque loss.
- Visible metallic debris in transmission fluid — Cage fragmentation introduces steel particles into the oil circuit, often detected during routine filter inspections.
- Increased operating temperature near the differential housing — Friction from misaligned rollers generates excess heat, which may trigger thermal warnings on construction equipment dashboards.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number | 0750.115.381 |
| Material | Case-hardened steel with phosphated finish |
| Outer Diameter | 115 mm |
| Inner Diameter | 100 mm |
| Width / Thickness | 38 mm |
| Weight | 0.45 kg |
| OEM Reference | ZF 0750.115.381 |
| Roller Pocket Count | 24 |
Compatibility
This needle cage is engineered for ZF WG180, WG200, and WG211 series transmissions commonly used in wheel loaders, excavators, and telehandlers. It also fits select ZF Ecolife and AS-Tronic off-highway variants. For complete driveline restoration, always inspect the 0750117075: TAPER ROLLER BEARING and the 2093209023: DIFFERENTIAL for matching wear patterns. The 5838300626: DIFFERENTIAL HOUSING must also be checked for scoring when replacing the needle cage.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 5838109012 | DIFFERENTIAL | Distributes torque between drive wheels |
| 0750117075 | TAPER ROLLER BEARING | Supports axial and radial loads on shaft |
| 2093209023 | DIFFERENTIAL | Secondary differential for planetary gear sets |
| 5838300626 | DIFFERENTIAL HOUSING | Encloses differential gears and bearings |
| 0631329088 | SPRING PIN | Secures needle cage to carrier |
| 5838300811 | THRUST WASHER | Reduces axial friction between rotating parts |
| 5838300721 | AXLE BEVEL GEAR | Transfers power at right angles in differential |
| 5838300633 | AXLE | Connects differential to wheel hub |
| 5838300753 | THRUST WASHER | Controls end-play in planetary carrier |
| 5838300818 | THRUST WASHER | Provides wear surface for sun gear |
Frequently Asked Questions
Q: Can I reuse the old needle cage if it looks intact?
A: No. Even minor cage distortion leads to uneven roller spacing. Always replace the 0750.115.381 cage during any transmission overhaul to prevent premature bearing failure.
Q: Does this needle cage fit ZF 4WG-200 transmissions?
A: Yes. The 0750.115.381 is a direct OEM replacement for 4WG-200, 4WG-210, and 5WG-180 series. Verify your transmission serial number against ZF parts catalogs for absolute confirmation.
Q: What lubricant is recommended with this part?
A: Use ZF-approved synthetic transmission oil (SAE 50 or 80W-90 depending on ambient temperature). The needle cage requires consistent oil flow to prevent roller skidding.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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