Overview
The ZF 4681.086.013 6 BP 230 BASICPOWER Transmission Assembly represents a complete, drop-in replacement unit engineered for the BP 210 and BP 230 series of powershift transmissions. This assembly integrates the torque converter, planetary gear sets, and hydraulic control system into a single, pre-assembled module. As a fully validated OEM-grade component, the SKU 4681.086.013 eliminates the need for individual part sourcing and complex rebuilds, restoring original shift quality and torque capacity in heavy-duty mobile equipment. It sits as the central power transfer unit, converting engine torque into controlled, multi-speed output for demanding applications.
Symptoms of Failure
When the ZF 4681.086.013 assembly begins to degrade, operators typically notice specific performance declines. Identifying these failure modes early can prevent catastrophic drivetrain damage.
- Erratic or delayed gear engagement: A worn assembly often causes hesitation when shifting from neutral into forward or reverse, particularly under load. This symptom is frequently searched as “transmission hesitation when shifting ZF BP 230.”
- Internal hydraulic oil leaks: Degraded seals within the assembly lead to visible fluid seepage around the bell housing or cooler lines. Searching for “ZF transmission oil leak from housing” often points to this part.
- Torque converter shudder: A failing assembly produces a distinct vibration or shudder during low-speed maneuvering or under heavy torque application, commonly described as “ZF torque converter shudder fix.”
- Complete loss of forward or reverse: Advanced wear can result in a total inability to engage one or more gear ranges, requiring immediate replacement of the entire unit.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number / SKU | 4681.086.013 |
| Assembly Type | Complete Transmission Unit (6 BP 230 BASICPOWER) |
| Overall Length (approx.) | 685 mm (27.0 in) |
| Overall Width (approx.) | 410 mm (16.1 in) |
| Overall Height (approx.) | 480 mm (18.9 in) |
| Dry Weight (approx.) | 195 kg (430 lbs) |
| Housing Material | High-strength cast iron (GGG-40) |
| Torque Converter Type | Single-stage, 3-element |
| OEM Reference | ZF 4681.086.013 |
Compatibility
This complete assembly is specifically designed for the ZF BP 210 and BP 230 series powershift transmissions. It is a direct fit for the following transmission models and their variants:
- ZF WG 180 (when configured with BP 210/230 output)
- ZF WG 200 (when configured with BP 210/230 output)
- ZF 6 BP 210 (all sub-variants)
- ZF 6 BP 230 (all sub-variants, including BASICPOWER)
- ZF 4 BP 210 (retrofit applications)
Always verify the transmission model plate and current assembly configuration before ordering. This unit replaces both the 4681.086.012 and earlier production variants.
