Overview
The ZF 4681.054.046 4 BP 210 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 module into a single, pre-assembled package. As a complete unit, it eliminates the need for individual component sourcing and complex internal rebuilds. The SKU 4681.054.046 is specifically designed to restore full power transfer and shift quality in heavy-duty industrial vehicles, functioning as the central driveline component between the engine and the final drive.
Symptoms of Failure
When the ZF 4681.054.046 assembly begins to degrade, operators will notice distinct performance issues. Recognizing these signs early can prevent catastrophic driveline damage.
- Delayed or harsh engagement when shifting from neutral to forward or reverse. This symptom, often described as “clunking” or “banging,” indicates internal clutch pack wear or hydraulic pressure loss within the assembly.
- Persistent transmission fluid leaks around the bell housing or output shaft seal. External oil seepage from the assembly housing is a clear indicator of degraded gaskets or seal failure, leading to low fluid levels and eventual overheating.
- Gear slippage under load, particularly when climbing grades or during heavy PTO operation. The transmission may momentarily lose power delivery, causing the engine to rev without proportional vehicle movement, a classic sign of worn friction discs or a failing torque converter stator.
- Unusual whining or grinding noises emanating from the transmission center section. These audible cues often point to bearing fatigue or planetary gear damage within the assembly, requiring immediate attention to avoid total seizure.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number / SKU | 4681.054.046 |
| Assembly Type | Complete Unit (4 BP 210 BASICPOWER) |
| Overall Length (approx.) | 620 mm |
| Dry Weight (approx.) | 185 kg (408 lbs) |
| Housing Material | High-strength cast iron (GGG-40) |
| Input Torque Capacity | 2100 Nm (max) |
| Number of Forward Speeds | 4 (Powershift) |
| OEM Reference | ZF 4681.054.046 / 0501.210.001 |
| Fluid Capacity (assembly) | Approx. 14 liters (ATF Dexron III) |
Compatibility
This complete assembly is engineered for direct installation into ZF transmission models that utilize the BP 210 and BP 230 series architecture. It is the primary power core for the following transmission families:
- ZF WG180 (all sub-variants using BP 210 gearset)
- ZF WG200 (models with 4-speed powershift configuration)
- ZF 4 BP 210 (BASICPOWER and ECOMAT variants)
- ZF 4 BP 230 (heavy-duty off-highway applications)
- ZF 4 WG-210 (industrial and construction equipment series)
This unit is commonly found in forklifts, wheel loaders, telehandlers, and reach stackers from manufacturers such as Liebherr, Manitou, and JCB. Always verify the bell housing pattern and torque converter pilot diameter against your specific vehicle model before installation.
