ZF 4642.330.216 INTERMEDIATE RING for WG150 | OEM Genuine Part

Overview

The ZF 4642.330.216 INTERMEDIATE RING is a precision-engineered component designed for the WG 150 series transmission. This OEM genuine part functions as a critical spacer and alignment element within the planetary gearset assembly, ensuring correct axial clearance and load distribution between rotating elements. Installed between the sun gear and the carrier, the intermediate ring (SKU: 4642.330.216) prevents metal-to-metal contact and maintains proper hydraulic flow within the clutch pack. When paired with a robust TRANSMISSION HOUSING and a durable TRANSMISSION HOUSING, this ring contributes to the overall structural integrity of the WG150 gearbox. The part is manufactured to ZF’s exacting tolerances, making it essential for rebuilds requiring factory-spec performance.

Symptoms of Failure

• Oil leaks around the intermediate housing: A worn 4642.330.216 ring can cause pressurized fluid to bypass seals, leading to visible drips near the bell housing. This is often misdiagnosed as a main seal failure.
• Gear slipping under load: When the intermediate ring loses its dimensional stability, clutch pack clearance increases, causing delayed engagement or slipping in 2nd and 3rd gears.
• Metallic grinding noise during shifts: Excessive wear on this ring allows planetary gears to contact the housing, producing a distinct grinding sound when shifting from neutral to drive.
• Overheating transmission fluid: A deformed intermediate ring restricts oil flow through the cooler circuit, causing the transmission to run 20-30°F hotter than normal.

Technical Specifications

Compatibility

This intermediate ring is primarily engineered for the ZF WG150 series, but it also fits select variants of the WG180 and WG200 transmissions produced between 1998 and 2015. It is compatible with models using the 4-speed planetary gearset, including the WG150-4, WG180-4, and WG200-4. For proper installation, ensure the transmission housing is clean and free of burrs. The ring works in conjunction with the TYPE PLATE for correct identification and the GROOVED STUD for secure mounting. Always verify your transmission’s serial number against ZF’s compatibility chart before ordering.

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