ZF 12882200551 NEEDLE CAGE | OEM Genuine Part

Overview

The ZF 12882200551 NEEDLE CAGE is an OEM genuine component engineered for the planetary gear sets within ZF heavy-duty construction machinery transmissions. This precision-machined cage retains and guides a set of cylindrical rollers, ensuring correct load distribution and rotational stability between the sun gear and planetary gears. As a critical wear element, the 12882200551 needle cage directly supports torque transfer and smooth gear engagement. When rebuilding a transmission, this part is frequently replaced alongside the 2098117002: HOUSING and the 2098301052: REAR AXLE HOUS. to restore factory clearances.

Symptoms of Failure

• Transmission gear slipping under load: A worn needle cage allows roller misalignment, causing intermittent power loss during excavation or grading operations.
• Metallic grinding noise from the planetary section: As the cage fatigues, roller-to-cage contact produces a distinct high-pitched whine or grinding sound, especially in lower gears.
• Contaminated transmission fluid with metallic debris: Flaking or fractured cage material circulates through the oil, often visible during routine filter inspections.
• Increased operating temperature in the axle housing: Excessive friction from a failing needle cage generates heat, detectable near the REAR AXLE HOUS. during operation.

Technical Specifications

Compatibility

This needle cage is designed for ZF WG series powershift transmissions commonly used in wheel loaders, dozers, and telehandlers. It is a direct fit for the following ZF models: WG180, WG200, WG210, and WG310. The part is installed in the planetary gear carrier assembly, where it interfaces with the sun gear shaft. For complete assembly, secure the cage using the 0636103300: STUD and 0637101164: HEXAGON NUT to maintain proper preload.

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