Overview
The ZF 2099.247.023 TUBE is a precision-engineered hydraulic fluid conduit designed for use within ZF heavy-duty powershift transmissions. This OEM genuine part channels pressurized oil to critical lubrication points and clutch packs, ensuring consistent thermal regulation and hydraulic actuation. As a factory-spec component, the SKU 2099.247.023 guarantees exact fitment and material integrity, eliminating the risks associated with aftermarket substitutes. It sits within the transmission valve body-to-clutch circuit, acting as a rigid link that withstands high cyclic pressures and thermal expansion.
Symptoms of Failure
- External hydraulic oil seepage at tube joints: When the 2099.247.023 tube develops micro-cracks or flange distortion, pressurized ATF will weep around O-ring seals, leaving visible drips on the transmission housing.
- Intermittent gear engagement delay: A compromised tube restricts oil flow to specific clutch packs, causing a 1-2 second lag when shifting from neutral to forward or reverse under load.
- Overheating transmission sump: Reduced oil volume reaching the cooler circuit due to a restricted or collapsed tube forces the transmission to run 15-20°F above normal operating temperature.
- Erratic clutch modulation during low-speed maneuvering: Worn tube ends allow pressure bleed-off, resulting in harsh or slipping engagement when creeping in construction machinery.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 2099.247.023 |
| Material | Seamless drawn steel, zinc-nickel plated |
| Overall Length | 285 mm (estimated) |
| Tube Outer Diameter | 12 mm |
| Wall Thickness | 1.5 mm |
| Weight | 0.18 kg |
| OEM Reference | ZF 2099.247.023 |
| Pressure Rating | 25 bar (362 psi) continuous |
Compatibility
This tube is engineered for ZF WG-series powershift transmissions commonly found in wheel loaders, graders, and telehandlers. Estimated compatible models include WG180, WG200, WG210, and WG310 series. It also applies to select ZF 4WG-200 and 6WG-200 variants used in construction machinery from 2005 onward. Always verify by cross-referencing your transmission serial number with the SKU 2099.247.023.
During installation, this tube interfaces directly with the 2099109002 DIFFERENTIAL and the 2099364014 CROWN WHEEL assembly, as it routes oil to the differential lubrication circuit. The 2099209001 DIFFERENTIAL and 2098309010 DIFFERENTIAL HOUSING are also adjacent components that share the same hydraulic gallery, making simultaneous inspection of these parts advisable when replacing the tube.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2099109002 | DIFFERENTIAL | Distributes torque to axle shafts |
| 2099364014 | CROWN WHEEL | Transfers drive from pinion to differential |
| 2099209001 | DIFFERENTIAL | Secondary differential for multi-axle drives |
| 2098309010 | DIFFERENTIAL HOUSING | Encloses differential gear set |
| 2098309009 | DIFFERENTIAL HOUSING | Alternate housing variant for WG series |
| 2098309031 | AXLE BEVEL GEAR | Right-hand bevel gear for final drive |
| 2098309030 | AXLE BEVEL GEAR | Left-hand bevel gear for final drive |
| 2098309032 | DIFFERENTIAL BEVEL GEAR | Spider gear inside differential carrier |
| 12883200682 | THRUST WASHER | Axial load bearing for gear faces |
| 0635332059 | BALL BEARING | Supports rotating shaft within housing |
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