Overview
The ZF 4681.086.001 6 BP 230 BASICPOWER Transmission Assembly represents a complete, factory-grade replacement unit engineered for medium-duty driveline applications. As a fully assembled drop-in solution, this component integrates the hydraulic control unit, clutch packs, and planetary gear sets into a single, pre-tested housing. Designated under SKU 4681.086.001, this assembly sits at the core of the transmission’s power flow, converting engine torque into controlled output speed. It is specifically calibrated for the BASICPOWER series, bridging the BP 210 and BP 230 categories to deliver reliable performance in municipal vehicles, construction loaders, and agricultural tractors.
Symptoms of Failure
When the ZF 4681.086.001 assembly begins to degrade, operators often notice distinct operational issues. Recognizing these signs early can prevent costly secondary damage.
- Erratic gear engagement or delayed shifting: Worn internal seals or valve body wear within the assembly cause hesitation when shifting from neutral to drive or reverse.
- Persistent hydraulic oil leaks near the bell housing: Degraded gaskets or cracked housing sections allow transmission fluid to escape, leaving visible puddles under the vehicle.
- Torque converter shudder under load: Internal clutch pack slippage generates a vibration or shudder during acceleration, particularly when climbing grades or carrying heavy payloads.
- Unusual whining or grinding noises: Bearing fatigue or planetary gear wear produces a metallic sound that intensifies with speed, indicating imminent internal failure.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number / SKU | 4681.086.001 |
| Assembly Type | Complete Unit (6-speed BASICPOWER) |
| Overall Length | 685 mm (27.0 in) |
| Dry Weight | 195 kg (430 lbs) |
| Housing Material | High-tensile cast aluminum alloy |
| Max Input Torque | 600 Nm (442 lb-ft) |
| OEM Reference | ZF 4681.086.001 (Direct replacement) |
| Fluid Capacity | 12.5 liters (13.2 quarts) |
Compatibility
This complete unit is engineered for ZF transmission models that share the BASICPOWER architecture. It is a direct fit for the BP 210 Series and BP 230 Series platforms. Verified compatible transmission models include:
- ZF WG180 (with BASICPOWER upgrade)
- ZF WG200 (BP 210 variant)
- ZF 6 BP 230 (standard production)
- ZF 6 BP 210 (early and late revisions)
Always cross-reference your existing transmission’s serial number with the 4681.086.001 SKU to confirm housing bolt pattern and valve body configuration. This assembly is not backward-compatible with the older 4 HP series without significant adapter modifications.
