ZF 2093.310.103 DISC CARRIER | OEM Genuine Part

Overview

The ZF 2093.310.103 DISC CARRIER is a precision-engineered OEM genuine component designed for the internal clutch pack assembly within heavy-duty ZF powershift transmissions. This disc carrier functions as the rotating hub that houses and aligns the friction and steel discs, transmitting torque from the clutch piston to the planetary gear set. As a critical load-bearing element, the SKU 2093.310.103 ensures consistent oil flow to the clutch discs for proper cooling and engagement. It is commonly found in construction machinery such as wheel loaders, graders, and dozers, where it operates under extreme thermal and mechanical stress. Replacing this part with the genuine OEM unit is essential to maintain factory-specified clearances and prevent premature clutch failure.

Symptoms of Failure

• Erratic gear engagement or clutch slipping: When the disc carrier splines wear or the hub distorts, the clutch pack cannot fully compress, leading to delayed or incomplete gear shifts under load.
• Metallic debris in transmission oil: A cracked or fatigued disc carrier sheds metal particles into the lubrication system, often detected during routine oil changes or filter inspections.
• Overheating transmission housing: If the carrier fails to maintain proper disc separation, continuous friction generates excessive heat, causing the transmission to run hotter than normal.
• Loss of forward or reverse drive: Severe carrier failure can prevent the clutch pack from locking, resulting in a complete loss of torque transfer in one or more gear ranges.

Technical Specifications

Compatibility

This disc carrier is engineered for ZF WG series powershift transmissions, specifically the WG180, WG200, and WG211 models used in construction machinery. It also fits select variants of the ZF 4WG-200 and 4WG-310 transfer cases. Always verify the transmission serial number and clutch pack configuration before installation. The carrier interfaces directly with the 2093109029: DIFFERENTIAL and the 2093209094: DIFFERENTIAL assembly, while the 0750117075: TAPER ROLLER BEARING supports the carrier shaft. The 2093309078: DIFF.HOUSING encloses the entire assembly.

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Frequently Asked Questions

Q: How do I know if my ZF 2093.310.103 disc carrier is worn out?
A: Inspect the spline teeth for visible galling or step wear. Also check for radial cracks near the oil feed holes. If the clutch pack shows uneven wear patterns, the carrier is likely distorted.

Q: Can I reuse the old snap rings or seals when installing this disc carrier?
A: No. Always replace all seals, O-rings, and snap rings during carrier replacement to prevent oil leaks and ensure proper clutch clearance. We recommend pairing this carrier with a new 0730300820: THRUST WASHER.

Q: Is this part compatible with ZF 4WG-200 transmissions?
A: Yes, the 2093.310.103 is a direct fit for most 4WG-200 and 4WG-310 series transmissions used in Volvo, Case, and Caterpillar machinery. Confirm your transmission tag number before ordering.