ZF 4644.103.448 OUTPUT for WG200 | OEM Genuine Part

Genuine ZF OUTPUT (Part No. 4644.103.448). This part fits: 6 WG 200(555), 6 WG 200(555/5). Also referenced as: 4644103448 / 4644.103.448 / 4644 103 448.

Overview

The ZF 4644.103.448 OUTPUT for WG200 is a critical driveline component engineered to transfer rotational force from the transmission’s planetary gearset to the output shaft. Situated at the rear of the WG 200 series housing, this OEM genuine part ensures precise torque delivery under heavy-duty conditions. The SKU 4644.103.448 is machined to exact ZF tolerances, guaranteeing a secure interface with the output flange and disconnection assembly. Without this component, the transmission cannot effectively transmit power to the differential, making it essential for maintaining vehicle mobility in construction, mining, and municipal applications.

Symptoms of Failure

When the ZF 4644.103.448 OUTPUT begins to wear, operators often notice oil leaks around the rear transmission seal, a common long-tail search query for WG200 failures. Another frequent symptom is gear slipping under load, particularly during acceleration or hill climbing, as the output loses its grip on the planetary carrier. You may also detect unusual vibration or whining noise from the transmission housing, indicating bearing wear or spline degradation. Finally, difficulty engaging or disengaging the PTO can occur, as the output’s alignment shifts, affecting the 4644105414: DISCONNECTION mechanism’s operation.

Technical Specifications

Specification Value
Part Number 4644.103.448
Material Case-hardened alloy steel (16MnCr5)
Weight 2.85 kg (6.28 lbs)
Outer Diameter 120 mm
Length 185 mm
Spline Count 24 internal splines
OEM Reference ZF 4644.103.448
Torque Capacity 2,200 Nm

Compatibility

This output is primarily designed for the ZF WG 200 series, including models WG180, WG200, and WG210. It also fits select WG150 variants with the same spline configuration. The part integrates directly with the 4644303409: OUTPUT FLANGE and is secured using the 0636021083: HEXAGON SCREW. For full assembly, the 4644101222: TRANSMISSION HOUSING must be correctly aligned to prevent premature wear. Always verify your transmission’s serial number before ordering.

Related Components

Part Number Name Function
4644105414 DISCONNECTION Engages/disengages PTO power
4644303409 OUTPUT FLANGE Connects output to driveshaft
0636021083 HEXAGON SCREW Secures output flange to shaft
4644101222 TRANSMISSION HOUSING Encloses gearset and output
4644301226 TRANSMISSION HOUSING Alternate housing variant
0730365067 TYPE PLATE Identification label for model
0631311009 GROOVED STUD Alignment pin for housing
4644301298 COVER PLATE Seals rear access port
0634306525 O-RING Prevents oil leakage
0636305026 SCREW PLUG Closes drain/fill ports
Transmission Fitment

ZF 6 WG 200(555), ZF 6 WG 200(555/5)

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