Overview
The ZF 5838.300.411 FEED PIPE is a critical hydraulic component engineered for precise oil delivery within heavy-duty construction machinery transmissions. This OEM genuine part channels pressurized transmission fluid to the rotating clutch packs and planetary gear sets, ensuring consistent lubrication and cooling under extreme load conditions. Positioned internally within the transmission housing, the feed pipe interfaces directly with the valve body and rotating shafts. The SKU 5838.300.411 is manufactured to ZF’s exacting tolerances, guaranteeing a leak-free seal and uninterrupted fluid flow. When this feed pipe fails, it compromises the entire hydraulic circuit, often necessitating simultaneous inspection of the 5838022003: REAR AXLE and 5838109001: DIFFERENTIAL for contamination from debris.
Symptoms of Failure
- External transmission fluid seepage – Cracks or fatigue in the feed pipe body cause visible oil drips near the bell housing or transmission pan, often mistaken for a pan gasket leak.
- Erratic gear engagement or delayed shifting – Reduced hydraulic pressure from a compromised feed pipe leads to soft shifts, clutch slip, or failure to engage forward/reverse gears under load.
- Overheating transmission oil – Insufficient lubrication flow to planetary gears generates excessive heat, triggering warning lights or burnt oil odor during operation.
- Metallic debris in oil filter – A fractured feed pipe can shed metal fragments into the hydraulic circuit, accelerating wear on the 0750117075: TAPER ROLLER BEARING and 5838300128: DIFFERENTIAL HOUSING.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 5838.300.411 |
| OEM Reference | ZF 5838.300.411 |
| Material | High-tensile steel with anti-corrosion coating |
| Overall Length | 245 mm (estimated) |
| Outer Diameter | 18 mm (estimated) |
| Wall Thickness | 2.5 mm (estimated) |
| Weight | 0.35 kg (estimated) |
| Seal Type | Integrated O-ring groove (O-ring sold separately) |
Compatibility
This feed pipe is designed for ZF powershift transmissions commonly used in wheel loaders, graders, and excavators. Based on the part type and hydraulic routing, the 5838.300.411 is compatible with the following ZF transmission models: WG180, WG200, WG211, and WG310. It also fits select variants of the 4WG-200 and 6WG-310 series. Always verify the transmission serial number against ZF parts catalogs before installation, as minor revisions in oil gallery routing may affect fitment.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 5838022003 | REAR AXLE | Transmits torque from differential to wheels |
| 5838109001 | DIFFERENTIAL | Distributes power between left/right wheels |
| 0750117075 | TAPER ROLLER BEARING | Supports axial and radial loads in axle assembly |
| 5838300128 | DIFFERENTIAL HOUSING | Encloses differential gears and bearings |
| 0631329086 | SPRING PIN | Secures feed pipe alignment in housing bore |
| 5838300129 | THRUST WASHER | Controls axial clearance in differential assembly |
| 5838300130 | THRUST WASHER | Secondary axial shim for differential preload |
| 5838300131 | AXLE BEVEL GEAR | Transfers power from driveshaft to differential |
| 5838300132 | COMPENS. STUB AXLE | Left-side axle shaft for load compensation |
| 5838300133 | COMPENS. STUB AXLE | Right-side axle shaft for load compensation |
