ZF 4656.183.019 LOOSE PARTS for WG160 | OEM Genuine Part

Overview

The ZF 4656.183.019 LOOSE PARTS kit is a critical service component designed specifically for the WG 160 series transmission. This assembly contains the necessary fasteners, seals, and small hardware required to secure and seal the main transmission housing sections during overhaul or repair. As an OEM genuine part, SKU 4656.183.019 ensures precise fitment and long-term durability, preventing fluid migration and maintaining structural integrity between the TRANSMISSION HOUSING and its adjoining sections. Without this kit, reassembly of the WG160 gearbox is incomplete, leading to potential contamination and pressure loss.

Symptoms of Failure

When the components within the ZF 4656.183.019 LOOSE PARTS kit degrade or are missing, operators will notice specific performance issues. External oil seepage around the housing mating surfaces is the most common indicator, often appearing as wet spots on the bell housing or rear cover. Gear engagement hesitation or slipping can occur if internal fasteners loosen, altering clutch pack clearances. Unusual metallic rattling or vibration from the transmission mid-section suggests loose hardware contacting rotating assemblies. Finally, contaminated transmission fluid with metal particles may signal that a missing bolt or pin has allowed component wear inside the HOUS.FRONT SECT.

Technical Specifications

Compatibility

This LOOSE PARTS kit is engineered for the ZF WG 160 series transmission family. While its primary application is the WG160, the hardware set also fits the WG180 and WG200 models due to shared housing bolt patterns and seal dimensions. It is essential for securing the HOUSING REAR PART and the HOUSING REAR PART (alternate variant) to the main casing. Always verify your transmission serial number to confirm fitment, as minor revisions exist between early and late WG160 builds.

Related Components

Frequently Asked Questions

Q: Can I reuse the original bolts from my old housing instead of buying the 4656.183.019 kit?
A: ZF recommends against reusing fasteners due to torque-to-yield stretching. The LOOSE PARTS kit includes new cap screws and pins that meet factory clamping specifications, ensuring the TRANSMISSION HOUSING seal integrity is restored.

Q: Does this kit include the gasket for the rear housing?
A: No, the 4656.183.019 kit contains only loose hardware (bolts, pins, washers). The sealing gasket for the HOUSING REAR PART must be ordered separately as part of a full overhaul gasket set.

Q: Will this part work on a ZF WG200 transmission?
A: Yes, the bolt pattern and pin dimensions are shared across the WG160, WG180, and WG200 series. However, always cross-reference your housing casting number with the HOUSING REAR PART variant to confirm compatibility.