ZF 4681.298.020 REPAIR KIT for BP210/BP230 | OEM Genuine Part

Overview

The ZF 4681.298.020 REPAIR KIT is a critical OEM genuine service assembly designed specifically for the BP210 and BP230 series transmissions. This kit contains all necessary seals, gaskets, and wear components required to restore hydraulic integrity and mechanical performance within the main valve body and clutch housing area. As a direct replacement for the original factory part, the SKU 4681.298.020 ensures that internal pressures remain stable and that the transmission’s shift quality is fully restored during a major overhaul. When installed alongside the 4681101002: TRANSMISSION HOUSING, this repair kit provides a complete sealing solution for the core assembly.

Symptoms of Failure

When the ZF 4681.298.020 REPAIR KIT components begin to degrade, operators will notice distinct performance issues. Oil leaks at the housing joint are the most common early indicator, often appearing as drips beneath the bell housing. Erratic gear engagement or delayed shifting occurs as internal seals lose their elasticity, causing pressure drops in the clutch circuits. Contaminated transmission fluid with metallic debris signals that internal wear particles have bypassed the filter screen. Finally, slipping under load—particularly in reverse or low gear—indicates that the repair kit’s sealing elements can no longer maintain the required hydraulic clamping force.

Technical Specifications

Compatibility

This genuine ZF repair kit is engineered for the BP210 and BP230 series transmissions, which are commonly found in medium-duty commercial vehicles, buses, and off-highway equipment. The 4681.298.020 kit is also compatible with the WG180, WG200, and WG210 model variants that share the same hydraulic circuit architecture. For complete assembly integrity, this kit should be used in conjunction with the 4681201007: HOUS.FRONT SECT and the 4681201008: HOUSING REAR PART to ensure proper alignment and sealing of the main casing. Additionally, the 4681298001: CASE is a direct structural partner for this repair kit during a full transmission rebuild.

Related Components

Frequently Asked Questions

Q: Can the 4681.298.020 REPAIR KIT be used on a ZF WG180 transmission?
A: Yes, this kit is fully compatible with the WG180, WG200, and WG210 models that share the BP210/BP230 hydraulic architecture. Always verify the serial number on your transmission tag before ordering.

Q: What is the typical service interval for replacing this repair kit?
A: ZF recommends replacing the 4681.298.020 kit during every major transmission overhaul, typically at 300,000 to 500,000 km (or 5,000 operating hours) depending on load conditions and fluid maintenance history.

Q: Does this kit include the filter screen and all O-rings?
A: Yes, the kit contains all necessary sealing elements, including the main filter screen (equivalent to 4681301016), O-rings, gaskets, and snap rings. For additional screen options, see the 4681301017: SCREEN SHEET for coarse filtration needs.