Overview
The ZF 4168.034.131 CONVERTER Torque Converter Assembly is a complete, drop-in replacement unit designed to transfer and multiply engine torque within ZF powershift transmissions. Positioned between the engine flywheel and the transmission input shaft, this hydraulic coupling uses stator, turbine, and impeller components to smooth power delivery and provide torque multiplication during low-speed operation. The SKU 4168.034.131 is a fully assembled converter, eliminating the need for disassembly or core balancing during installation. This part is critical for maintaining driveline efficiency in heavy-duty industrial applications, including construction loaders, forklifts, and material handling equipment.
Symptoms of Failure
- Torque converter shudder or vibration during acceleration: Worn internal clutch plates or damaged stator bearings cause noticeable shuddering when the converter locks up, often described as a “chuggle” at low RPM.
- Transmission fluid overheating and darkening: A failing torque converter generates excessive heat due to internal slippage, leading to burnt-smelling, dark fluid and potential transmission damage.
- Delayed or harsh engagement when shifting from neutral to drive: Loss of hydraulic pressure within the converter assembly results in a lag of 2–3 seconds before engagement, followed by a jarring shift.
- Oil leaks from the bell housing area: Failed seals on the converter hub allow transmission fluid to escape, leaving puddles under the vehicle and reducing fluid levels.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 4168.034.131 |
| Type | Complete Torque Converter Assembly |
| Diameter (Approx.) | 340 mm (13.4 in) |
| Weight (Approx.) | 18.5 kg (40.8 lbs) |
| Housing Material | Cast Iron / Steel |
| Impeller Material | Heat-Treated Alloy Steel |
| OEM Reference | ZF 4168.034.131 |
| Stall Torque Ratio | 2.0:1 – 2.5:1 (estimated) |
Compatibility
This torque converter assembly is engineered for ZF WG series powershift transmissions, specifically the WG 160 Series, WG 171 Series, WG 190 Series, WG 191 Series, WG 210 Series, and WG 211 Series. It is commonly used in ZF WG180 and WG200 configurations found in telehandlers, wheel loaders, and industrial tractors. Always verify your transmission model and serial number before ordering.
Installation Context
When replacing the torque converter, it is essential to inspect the surrounding structural components. The 4656101056: TRANSMISSION HOUSING must be free of cracks or warping to ensure proper converter alignment. Additionally, the 4656201075: HOUS.FRONT SECT and the 4656201077: HOUSING REAR PART should be checked for wear at the bearing seats. For complete rear-end integrity, the 4656298049: HOUSING REAR SECTION must also be evaluated for damage.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4656101056 | TRANSMISSION HOUSING | Main structural casing that encloses gears and shafts |
| 4656201075 | HOUS.FRONT SECT | Front section of the transmission housing supporting the converter |
| 4656201077 | HOUSING REAR PART | Rear housing section covering output shaft area |
| 4656298049 | HOUSING REAR SECTION | Additional rear housing segment for extended transmissions |
| 0631306816 | CYLINDRICAL PIN | Alignment pin for precise housing assembly |
| 4656301148 | FIXING PLATE | Retaining plate for securing internal components |
| 0636100817 | CAP SCREW | Fastener for housing and cover attachment |
| 4656301016 | SCREEN SHEET | Fine mesh filter for transmission fluid |
| 4656301017 | SCREEN SHEET | Secondary mesh filter for debris protection |
| 0636100803 | CAP SCREW | Bolt for securing filter screens and covers |
Frequently Asked Questions
Q: Can the ZF 4168.034.131 torque converter be rebuilt, or must it be replaced as a complete unit?
A: While some shops rebuild converters, the 4168.034.131 is designed as a complete, balanced assembly. Replacing it as a unit ensures proper stator and clutch clearances, reducing the risk of vibration or premature failure.
Q: What transmission fluid is recommended for use with this converter in a WG 191 series transmission?
A: ZF recommends using a high-quality Dexron III or ZF TE-ML 03D approved fluid. Always check the transmission dipstick or manual for the exact specification, as incorrect fluid can cause shuddering or overheating.
Q: How do I confirm that the 4168.034.131 fits my WG 210 series transmission?
A: Verify the transmission model tag located on the housing. The 4168.034.131 is listed for WG 210 series, but you should also measure the converter pilot diameter and bolt pattern to ensure compatibility with your flywheel.
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Phone: +86 158 2286 3467 |
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