Overview
This genuine OEM ZF 6029.199.275 PLUG KIT is a critical sealing assembly designed for the WG171, WG191, and WG210 series transmissions. It serves as the primary closure for the transmission’s hydraulic control bore, preventing fluid bypass and maintaining consistent line pressure. The kit (SKU: 6029.199.275) includes all necessary plugs and seals to restore the integrity of the valve body housing. When installed alongside the 4656101072: TRANSMISSION HOUSING, it ensures a leak-free interface between the pump and the main case. This part is essential for any rebuild or overhaul of the WG series gearbox.
Symptoms of Failure
- External oil seepage at the plug bore: A worn plug kit often causes visible transmission fluid drips near the rear of the bell housing, especially after the vehicle has been parked.
- Erratic shift quality or delayed engagement: When the plug loses its seal, hydraulic pressure drops, leading to soft shifts or a noticeable lag when moving from Neutral to Drive.
- Whining noise from the transmission pump: Air ingestion through a compromised plug can aerate the fluid, producing a high-pitched whine under load.
- Low fluid level without visible external leaks: Internal leakage past the plug can cause fluid to migrate into the torque converter housing, mimicking a slow leak.
Technical Specifications
| Specification | Value |
|---|---|
| OEM Part Number | 6029.199.275 |
| Material | Steel with Nitrile Rubber Seals |
| Weight | 0.12 kg (0.26 lbs) |
| Outer Diameter | 28.5 mm |
| Length | 32.0 mm |
| Seal Type | Integrated O-Ring (Dual Lip) |
| OEM Reference | 6029.199.275 (ZF Genuine) |
Compatibility
This plug kit is engineered for the ZF WG series of powershift transmissions. It is a direct fit for the WG171, WG191, WG210, WG211, and WG94 series. The part is commonly used in agricultural tractors, construction loaders, and industrial material handlers. For proper installation, ensure the mating surface on the 4656301168: HOUS.FRONT SECT is clean and free of debris. Always replace the 4656201015: SCREEN SHEET and the 4656301037: TUBE during the same service interval to prevent contamination from entering the new plug bore.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4656101072 | TRANSMISSION HOUSING | Main structural case for gear assembly |
| 4656301168 | HOUS.FRONT SECT | Front section housing the pump and converter |
| 4656201015 | SCREEN SHEET | Fine mesh filter protecting valve body |
| 4656301037 | TUBE | Oil delivery tube between pump and cooler |
| 0634313514 | O-RING | Seals the tube connection |
| 0636100803 | CAP SCREW | Fastens housing sections together |
| 4656301169 | HOUSING REAR PART | Rear section enclosing output shaft |
| 0631306816 | CYLINDRICAL PIN | Alignment dowel for housing halves |
| 0636100801 | CAP SCREW | Secures the plug kit in place |
| 0636100160 | CAP SCREW | Mounts the screen sheet bracket |
Frequently Asked Questions
Q: Can I reuse the old plug kit if it looks clean?
A: No. The ZF 6029.199.275 plug kit contains a compression seal that deforms permanently upon installation. Reusing it will almost certainly cause a leak within 50 operating hours.
Q: Does this kit work with the WG180 or WG200 series?
A: While the WG180 and WG200 share the same plug bore diameter, we recommend verifying your transmission serial number. The 6029.199.275 is officially listed for WG171, WG191, WG210, WG211, and WG94. For other models, cross-reference the housing part number.
Q: What torque should I use for the retaining screw?
A: Use 18 Nm (13 ft-lbs) for the cap screw (0636100801) that holds the plug kit. Over-tightening can distort the housing bore and cause immediate seal failure.
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Phone: +86 158 2286 3467 |
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