ZF 4616.308.108 GEAR for WG65 | OEM Genuine Part

Overview

The ZF 4616.308.108 GEAR is a precision-machined component engineered specifically for the WG 65 Series transmission family. This OEM genuine part functions as a critical load-bearing gear within the planetary gearset, facilitating smooth torque transfer and speed regulation under heavy-duty operating conditions. The SKU 4616.308.108 is designed to mesh precisely with adjacent shafts and clutches, ensuring minimal backlash and consistent power delivery. When installed alongside the 4616105402: OUTPUT and the 4005303005: OUTPUT FLANGE, this gear forms the core of the driveline assembly, directly influencing overall transmission efficiency and durability.

Symptoms of Failure

• Whining or grinding noise during gear engagement: A worn 4616.308.108 gear often produces a high-pitched whine or metallic grinding sound, particularly under load or during acceleration. This indicates tooth surface degradation or pitting.
• Intermittent gear slipping under torque: When the gear teeth lose their hardened profile, the transmission may momentarily slip out of the intended ratio, causing a sudden loss of power to the wheels.
• Metal particles in transmission fluid: Advanced wear of this gear sheds microscopic steel fragments into the oil. Inspecting the fluid for a metallic sheen or sludge is a reliable diagnostic step.
• Vibration at specific road speeds: Uneven tooth wear creates imbalance, leading to noticeable driveline vibration that intensifies as the gear rotates faster.

Technical Specifications

Compatibility

This gear is a direct fit for the ZF WG 65 Series, including the WG65, WG80, and WG100 models. It also serves as a replacement in certain WG120 and WG150 transmissions where the planetary gearset shares identical tooth geometry. For proper installation, ensure the 4616101119: TRANSMISSION HOUSING is free of cracks and the 0636011038: HEXAGON SCREW is torqued to factory specifications. Always verify the gear’s spline count against your existing unit before ordering.

Related Components

{
“@context”: “https://schema.org”,
“@type”: “FAQPage”,
“mainEntity”: [
{
“@type”: “Question”,
“name”: “What transmission models use the ZF 4616.308.108 gear?”,
“acceptedAnswer”: {
“@type”: “Answer”,
“text”: “The 4616.308.108 gear is primarily designed for the ZF WG 65 Series, including WG65, WG80, and WG100 models. It may also fit select WG120 and WG150 transmissions with compatible planetary gear sets.”
}
},
{
“@type”: “Question”,
“name”: “How can I tell if my 4616.308.108 gear is failing?”,
“acceptedAnswer”: {
“@type”: “Answer”,
“text”: “Common symptoms include whining or grinding noises during gear changes, intermittent slipping under load, metallic particles in the transmission fluid, and noticeable vibration at certain speeds.”
}
},
{
“@type”: “Question”,
“name”: “Is the 4616.308.108 gear a direct OEM replacement?”,
“acceptedAnswer”: {
“@type”: “Answer”,
“text”: “Yes, this is an OEM genuine ZF part (SKU 4616.308.108) and serves as a direct replacement for the original gear in compatible WG-series transmissions.”
}
}
]
}

Authorized ZF Distributor

We are a certified supplier of genuine ZF components.