ZF 4699.303.102 TOOTHED DISC | OEM Genuine Part

Overview

The ZF 4699.303.102 TOOTHED DISC (SKU: 4699.303.102) is an OEM genuine component engineered for precise torque transfer within ZF heavy-duty powershift transmissions. This disc sits directly inside the clutch pack assembly, engaging with the hub to lock or release planetary gear sets during load shifts. As a friction-critical element, it ensures smooth power flow under extreme torque loads in construction machinery. The 4699.303.102 is typically paired with the 4699101155 HOUSING and the 4699201018 HOUSING to form a sealed clutch chamber. Its hardened steel core and precision-cut teeth guarantee consistent engagement, reducing wear on adjacent components like the 4699309077 HOUSING COVER.

Symptoms of Failure

• Delayed gear engagement under load: When the toothed disc wears, the clutch pack fails to lock quickly, causing hesitation during loader or dozer operation.
• Erratic shifting or gear slipping: Worn teeth allow the disc to skip under torque, leading to sudden loss of drive power on inclines.
• Metallic grinding noises from the transmission: Damaged teeth produce a distinct chatter during gear changes, often accompanied by vibration in the driveline.
• Contaminated transmission fluid with metallic debris: As the disc disintegrates, steel particles circulate through the oil, accelerating wear on the 0636100132 TORX SCREW and sealing surfaces.

Technical Specifications

Compatibility

This toothed disc is designed for ZF WG180, WG200, and WG211 series powershift transmissions commonly found in wheel loaders, excavators, and telehandlers. It also fits select ZF 4WG-200 and 6WG-200 variants used in construction machinery. For proper installation, ensure the disc is paired with the correct 0631302072 CYLINDRICAL PIN and 0634801038 SEALING RING to prevent oil bypass. Always verify your transmission model against the OEM parts catalog before ordering.

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