ZF 0501.211.932 DISC CARRIER for WG131 | OEM Genuine Part

Overview

The ZF 0501.211.932 DISC CARRIER is a critical internal component engineered for the WG 131 Series transmission. This genuine OEM part functions as the primary hub that supports and positions the clutch disc packs within the planetary gearset. By precisely aligning the friction discs and steel plates, the disc carrier ensures smooth torque transfer and consistent hydraulic pressure distribution during gear shifts. The SKU 0501.211.932 is specifically machined to withstand high rotational loads and thermal stress, making it essential for maintaining drivetrain integrity in heavy-duty commercial vehicles. When installed alongside the 4656101028: TRANSMISSION HOUSING, it creates a sealed environment that prevents contamination from entering the clutch assembly.

Symptoms of Failure

• Delayed or harsh gear engagement: A worn disc carrier causes misalignment of clutch packs, leading to noticeable hesitation or jarring shifts during acceleration.
• Transmission fluid contamination: Cracks in the carrier allow debris to circulate, resulting in dark, metallic-flecked oil that accelerates wear on other components.
• Intermittent power loss under load: When the carrier loses its dimensional stability, clutch packs slip under torque, causing the vehicle to lose speed on inclines or during heavy hauling.
• Unusual grinding noises from the transmission housing: Metal-on-metal contact from a failing carrier produces a distinct whirring or grinding sound, especially in lower gears.

Technical Specifications

Compatibility

This disc carrier is primarily designed for the ZF WG 131 Series transmission, which is commonly found in municipal trucks, fire apparatus, and medium-duty construction vehicles. Based on the part’s spline pattern and clutch pack dimensions, it is also compatible with the following ZF models: WG 131, WG 150, WG 180, and WG 200. Always verify the transmission serial number before installation. For complete assembly, pair this carrier with the 4656301066: HOUS.FRONT SECT and the 4656201015: SCREEN SHEET to ensure proper oil flow and structural support. Additionally, the 4656301037: TUBE must be inspected for wear during carrier replacement to avoid premature failure.

Related Components

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