Overview
The ZF 4681.086.014 6 BP 230 BASICPOWER Transmission Assembly represents a complete, drop-in replacement unit engineered for medium-duty commercial and industrial drivetrains. As a fully assembled gearbox, this SKU integrates the main housing, planetary gear sets, valve body, and torque converter into a single, pre-tested module. Designed for the BP 210 and BP 230 series, this assembly eliminates the need for piecemeal component sourcing, reducing installation downtime. The 4681.086.014 is specifically calibrated for the BASICPOWER variant, offering a robust 6-speed forward configuration that prioritizes consistent torque delivery under sustained load conditions.
Symptoms of Failure
When the ZF 4681.086.014 assembly begins to degrade, operators often notice distinct performance issues. Delayed or harsh engagement between forward and reverse gears is a primary indicator, often accompanied by a noticeable shudder during initial acceleration. Another common failure symptom is intermittent gear slipping under load, particularly when climbing grades or carrying heavy payloads, which manifests as a sudden RPM flare without corresponding vehicle speed increase. Fluid contamination with metallic debris is a critical sign, typically discovered during routine oil changes, indicating internal bearing or clutch pack wear. Finally, erratic shift patterns—such as skipping gears or refusing to upshift—suggest valve body or solenoid degradation within the assembly.
Technical Specifications
| Specification | Detail |
|---|---|
| OEM Part Number | 4681.086.014 |
| Assembly Type | Complete Transmission Unit (6 BP 230 BASICPOWER) |
| Gear Configuration | 6 Forward / 1 Reverse |
| Input Torque Capacity | Approx. 600 Nm (442 lb-ft) |
| Dry Weight | Approx. 95 kg (209 lbs) |
| Housing Material | High-Strength Aluminum Alloy (Die-Cast) |
| Fluid Capacity | 12.5 Liters (ZF TE-ML 04D or 05K) |
| Overall Length (Bell to Tail) | Approx. 620 mm |
| Mounting Pattern | SAE 3 Bellhousing Standard |
Compatibility
This complete assembly is engineered for the ZF BP 210 and BP 230 series transmission families. It is a direct fit for the following specific models and their derivatives:
- ZF WG180 (early and late variants requiring BASICPOWER calibration)
- ZF WG200 (non-overdrive versions with 6-speed logic)
- ZF 6 BP 210 (all sub-variants using the 4681.086.014 base code)
- ZF 6 BP 230 (BASICPOWER and standard torque converter models)
- ZF 6 HP 210 (when retrofitted with BASICPOWER valve body kits)
Always verify the transmission control unit (TCU) software version and bellhousing bolt pattern against your existing unit before installation. This assembly is not compatible with the HP 500 series or Ecodrive 2 variants without significant adapter modifications.
