ZF 0501.340.872 PROTECTION CAP | OEM Genuine Part

Overview

The ZF 0501.340.872 PROTECTION CAP is a critical sealing component designed to shield internal transmission assemblies from contaminants, moisture, and debris. Positioned at the housing interface of ZF construction machinery gearboxes, this OEM genuine part ensures that hydraulic passages and bearing cavities remain free from foreign particle ingress. The SKU 0501.340.872 fits precisely into the transmission housing to maintain system pressure integrity. When installed alongside the 4699101159 HOUSING or the 4699301254 HOUSING, this cap forms a robust barrier that prevents lubricant loss and environmental contamination.

Symptoms of Failure

• External oil seepage around the cap perimeter: A worn or cracked 0501.340.872 protection cap allows transmission fluid to weep past the seal, leaving visible residue on the housing exterior.
• Contaminated transmission fluid: When the cap fails, dirt and water enter the system through the opening, causing premature wear on clutches and bearings.
• Erratic gear engagement or slipping: Loss of hydraulic pressure due to a compromised cap leads to delayed shifting or clutch slip under load in WG-series transmissions.
• Unusual whining or grinding noises: Debris ingress from a degraded protection cap accelerates bearing wear, producing audible metallic sounds during operation.

Technical Specifications

Compatibility

This protection cap is engineered for ZF WG-series powershift transmissions commonly used in construction machinery. It directly fits the following models: WG180, WG200, WG210, and WG250. The cap is also compatible with certain ZF Ecomat and Ecolite series where the housing bore matches the 68 mm outer diameter. For complete assembly, pair this cap with the 4699298049 HOUSING KIT and the 4699309123 HOUSING COVER to ensure all sealing points are addressed.

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