ZF 4143.315.061 PLANET SHAFT for WG100/WG130/WG131 | OEM Genuine Part

Overview

The ZF 4143.315.061 PLANET SHAFT is a critical load-bearing component engineered for the planetary gear sets within ZF WG100, WG130, and WG131 transmissions. This OEM genuine part, identified by SKU 4143.315.061, serves as the central axis for planetary gears, transmitting torque from the sun gear to the carrier while managing high radial loads. Positioned inside the main gear housing, it interfaces directly with the 4143101016: HOUSING and the 4143301039: HOUSING to ensure precise gear alignment. A proper seal is maintained by the 0501318136: GASKET, while the assembly is secured using the 0636101084: CAP SCREW. Without this shaft, the planetary gearset cannot transfer power effectively, leading to total transmission failure.

Symptoms of Failure

• Planet shaft worn causing gear slipping: When the shaft surface wears unevenly, planetary gears lose proper engagement, resulting in intermittent power loss under load.
• Metallic grinding noise from transmission: A worn 4143.315.061 shaft allows excessive gear play, producing a distinct grinding or rumbling sound during acceleration or deceleration.
• Oil contamination with metal debris: As the shaft degrades, fine metallic particles enter the transmission fluid, often visible during oil changes as silver or bronze flakes.
• Hard shifting or delayed engagement: Increased friction on the planet shaft causes binding in the planetary carrier, making gear changes sluggish or requiring higher RPMs to shift.

Technical Specifications

Compatibility

This ZF 4143.315.061 PLANET SHAFT is specifically designed for the following ZF transmission models: WG100, WG130, WG131. It is also compatible with the HL 100 Series and HL 270 Series transfer cases that share the same planetary gear architecture. While primarily used in WG-series off-highway transmissions, it may fit select WG180 and WG200 variants that utilize identical planet carrier assemblies. Always verify your transmission serial number before installation. For sealing and fastening, pair this shaft with the 0634306198: O-RING and 0634801057: SEALING RING to prevent fluid leaks.

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