Overview
The ZF 4699.199.035 LOOSE PARTS assembly is a critical internal component cluster designed for heavy-duty construction machinery transmissions. This OEM genuine part serves as a precision-machined interface kit that secures and aligns planetary gear sets within the main transmission housing. Specifically, it functions as a retention and spacing system that prevents axial movement of rotating assemblies under extreme torque loads. The SKU 4699.199.035 is engineered to maintain exacting clearances, directly influencing shift quality and overall driveline durability. When installed, this loose parts set works in concert with the 4699101080: HOUSING to create a sealed, pressurized environment for hydraulic clutch packs.
Symptoms of Failure
- Intermittent gear slipping under load: Worn components within the 4699.199.035 assembly can cause planetary gears to lose proper engagement, resulting in momentary power loss during excavation or grading operations.
- Metallic debris in transmission fluid: As the loose parts degrade, microscopic metal particles contaminate the hydraulic circuit, often first detected during routine oil analysis or when inspecting the 0634306309: O-RING seal surfaces.
- Abnormal whining or grinding noises: A high-pitched whine from the transmission bell housing typically indicates that the 0630513065: SNAP RING has lost its tension, allowing gear train components to shift out of alignment.
- Hydraulic pressure fluctuations: Internal leakage caused by a failing 0501329881: HOUSING COVER seal can trigger erratic pressure readings, leading to delayed clutch engagement.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 4699.199.035 |
| Material Composition | Case-hardened alloy steel (DIN 1.7131) with phosphate coating |
| Overall Dimensions (L x W x H) | 145 mm x 85 mm x 40 mm |
| Weight | 0.87 kg (1.92 lbs) |
| OEM Reference | ZF 4699.199.035 (Genuine) |
| Operating Temperature Range | -40°C to +120°C |
| Hardness Rating | 58-62 HRC (Rockwell C scale) |
Compatibility
This loose parts kit is primarily compatible with ZF’s WG series powershift transmissions used in wheel loaders, graders, and excavators. Verified model applications include the WG180, WG200, and WG211 series. It also fits select iterations of the 4WG-200 and 6WG-200 transmissions manufactured between 2008 and 2020. For precise fitment verification, always cross-reference your transmission serial number with the OEM parts catalog.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4699101080 | HOUSING | Main structural enclosure for gear train |
| 0501329881 | HOUSING COVER | Seals and protects internal components |
| 0630513065 | SNAP RING | Retains shafts and bearings axially |
| 0634306309 | O-RING | Hydraulic seal for pressure circuits |
| 0637885612 | BREATHER | Equalizes internal pressure |
| 0501319149 | SCREW PLUG | Closes oil passages |
| 0636302022 | SCREW PLUG | Seals drain/fill ports |
| 0634801038 | SEALING RING | Prevents fluid bypass |
| 0730365801 | TYPE PLATE | Identification and rating label |
| 4699001080 | GK10 | Gasket kit for overhaul |
