Overview
The ZF 6029.199.013 PLUG KIT is a critical sealing assembly designed for the hydraulic control circuits within ZF WG180, WG201, and WG65 series transmissions. This OEM genuine part ensures that pressurized transmission fluid remains contained within the valve body and clutch housing channels, preventing cross-contamination between circuits. The kit includes all necessary sealing elements to restore factory-specified fluid integrity. When paired with a robust 4616101140: TRANSMISSION HOUSING, this plug kit maintains the precise hydraulic pressure required for smooth gear engagement. The SKU 6029.199.013 is a direct replacement for the original factory-installed assembly.
Symptoms of Failure
- Hydraulic fluid seepage around the valve body cover: A worn plug kit allows transmission oil to weep past the sealing surfaces, often visible as dark stains on the housing exterior.
- Erratic or delayed gear engagement: When the plug kit loses its seal, internal pressure drops, causing hesitation when shifting from Neutral to Drive or Reverse in WG65 models.
- Audible whining or buzzing from the transmission pump: Air ingestion through a degraded plug kit creates cavitation noise, particularly under load in WG180 and WG201 units.
- Intermittent transmission overheating: Loss of hydraulic pressure forces the torque converter to work harder, generating excess heat that may trigger warning lights.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 6029.199.013 |
| Material | Nitrile rubber (NBR) with steel insert |
| Outer Diameter | 28.5 mm |
| Inner Diameter | 18.0 mm |
| Height | 12.0 mm |
| Weight | 0.045 kg |
| OEM Reference | ZF 6029.199.013 |
| Operating Temperature Range | -40°C to +150°C |
| Sealing Pressure Rating | 18 bar (261 psi) |
Compatibility
This plug kit is engineered for the following ZF transmission series: WG180 (all sub-variants including WG180A and WG180B), WG201 (standard and high-torque versions), and WG65 (compact off-highway models). It interfaces directly with the valve body cover and the main 4616301304: HOUSING assembly. For installations requiring additional sealing integrity, the 0636011118: HEXAGON SCREW and the 4616301309: HOUSING are commonly replaced concurrently. Always verify your transmission’s serial number against ZF’s parts catalog to confirm fitment.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4616101140 | TRANSMISSION HOUSING | Main structural casing for gear and clutch assembly |
| 0636011118 | HEXAGON SCREW | Fastener for securing valve body cover |
| 4616301304 | HOUSING | Intermediate housing for clutch pack support |
| 4616301309 | HOUSING | Rear housing for output shaft bearing |
| 0636011038 | HEXAGON SCREW | Mounting bolt for oil pan |
| 0636016015 | HEXAGON SCREW | Fastener for torque converter housing |
| 0631306085 | CYLINDRICAL PIN | Alignment dowel for valve body positioning |
| 0634313118 | O-RING | Static seal for hydraulic line connections |
| 0636304019 | SCREW PLUG | Threaded plug for test port sealing |
| 0634801152 | SEALING RING | Copper crush washer for drain plug |
