ZF 4616.306.103 INTERMEDIATE PLATE for WG65 | OEM Genuine Part

Overview

The ZF 4616.306.103 INTERMEDIATE PLATE is a critical structural component within the WG65 series transmission. It serves as the central mounting interface between the main gear housing and the output section, precisely aligning the planetary gear sets and directing hydraulic fluid flow. This OEM genuine part (SKU: 4616.306.103) ensures that the torque path remains stable under heavy load. When installed alongside the 4616105413 OUTPUT and the 4616203017 OUTPUT FLANGE, it creates a rigid assembly that prevents axial play. The plate also seals against the 4616101117 TRANSMISSION HOUSING, using precision-machined surfaces to maintain oil pressure integrity.

Symptoms of Failure

• Oil weeping from the intermediate joint: When the plate surface warps or corrodes, transmission fluid seeps between the housing and the plate, causing visible drips under the bell housing area.
• Intermittent gear slipping under load: A warped intermediate plate misaligns the clutch pack clearances, leading to delayed engagement or sudden loss of drive torque during uphill hauling.
• Metallic grinding noise during shifts: Worn locating dowels on the plate allow the output shaft to contact the housing, producing a distinct scraping sound when changing from forward to reverse.
• Erratic hydraulic pressure readings: Cracks in the plate’s internal oil galleries cause pressure drops, triggering fault codes for low clutch feed pressure in the WG65 control unit.

Technical Specifications

Compatibility

This intermediate plate is engineered for the WG 65 Series family of ZF transmissions. It is directly compatible with models including WG65, WG80, WG100, WG120, WG150, WG180, and WG200. The plate is also used in certain WG250 variants where the intermediate housing bolt pattern matches the 12-hole configuration. Always verify the casting number on your existing plate before ordering, as later WG65 revisions use a different oil port layout.

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