ZF 4475.280.175 ROLLER SET | OEM Genuine Part

Overview

The ZF 4475.280.175 ROLLER SET is a precision-engineered OEM genuine component designed to maintain smooth rotational motion within the planetary gear sets of heavy-duty ZF transmissions. This roller set directly supports the planet carrier assembly, reducing friction between rotating elements and ensuring consistent torque transfer under extreme loads. As part number 4475.280.175, it is a critical wear item that must be replaced during transmission overhauls to prevent cascading damage. The roller set works in conjunction with the 4108301304: BEARING COVER and the 4108101112: HOUSING to create a sealed, lubricated environment for the gear train.

Symptoms of Failure

• Gear slipping under load: Worn rollers lose dimensional accuracy, causing intermittent clutch engagement and power loss during excavation or lifting operations.
• Metallic grinding noise from transmission: Degraded roller surfaces produce audible chatter or grinding sounds, particularly when shifting between forward and reverse gears.
• Oil contamination with metallic debris: Flaking roller material circulates through the hydraulic system, clogging filters and damaging the 4108201177: HOUSING sealing surfaces.
• Increased operating temperature: Excessive friction from failed rollers generates heat, often triggering transmission overheat warnings on construction machinery dashboards.

Technical Specifications

Compatibility

This roller set is engineered for ZF WG180, WG200, and WG210 series transmissions commonly found in wheel loaders, excavators, and telehandlers. It is also compatible with ZF 4WG-200 and 6WG-200 variants used in agricultural tractors. For proper installation, always pair this roller set with a new 0636302056: SCREW PLUG to secure the lubrication channel and a fresh 4108306173: GASKET to prevent oil bypass. Verify housing condition using the 4108102042: INPUT shaft alignment tool during reassembly.

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