Overview
The ZF 4681.054.037 4 BP 210 BASICPOWER Transmission Assembly represents a complete, ready-to-install unit engineered for demanding industrial driveline applications. This assembly integrates the hydraulic control system, planetary gear sets, and torque converter into a single, pre-assembled package, serving as the core power transfer module for heavy-duty machinery. As a full replacement assembly, it eliminates the need for piecemeal component rebuilding, reducing downtime significantly. The SKU 4681.054.037 is specifically calibrated for the BASICPOWER series, offering a balance of robust torque handling and operational efficiency. It sits at the heart of the powertrain, directly managing gear ratio changes and power distribution from the engine to the output shaft.
Symptoms of Failure
When the ZF 4681.054.037 assembly begins to degrade, operators will notice distinct performance issues. Recognizing these signs early can prevent catastrophic driveline damage.
- Delayed or harsh engagement: A noticeable lag when shifting from neutral to drive or reverse, often accompanied by a jarring clunk. This indicates internal hydraulic pressure loss or worn clutch packs within the assembly.
- Intermittent gear slipping under load: The transmission may momentarily lose power delivery during uphill climbs or when towing heavy loads, with engine RPMs rising without a corresponding increase in vehicle speed.
- External fluid seepage at housing seams: Oil leaks developing around the main gasket surfaces or near the output flange suggest seal degradation. This is a common long-tail search query for “ZF BP210 oil leak repair.”
- Overheating and burnt fluid odor: Persistent high operating temperatures, often indicated by a dashboard warning light, combined with a sharp, acrid smell from the transmission fluid, point to internal friction damage or a failing torque converter stator.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number | 4681.054.037 |
| Assembly Type | Complete Unit (4 BP 210 BASICPOWER) |
| Dry Weight (approx.) | 185 kg (408 lbs) |
| Overall Length | 720 mm |
| Housing Material | High-Strength Aluminum Alloy |
| Max Input Torque Capacity | 2,100 Nm |
| Fluid Capacity (dry fill) | 18.5 Liters |
| OEM Reference | ZF 4681.054.037 |
| Bolt Torque Spec (bell housing) | 85 Nm |
Compatibility
This complete assembly is designed for direct integration into specific ZF transmission families. It is a primary fit for the BP 210 Series and BP 230 Series platforms. Based on its BASICPOWER designation and physical configuration, it is compatible with the following ZF model variants:
- ZF WG180 (select off-highway configurations)
- ZF WG200 (power take-off equipped units)
- ZF 4 BP 210 (standard and heavy-duty versions)
- ZF 4 BP 230 (high-torque variants)
This unit is not cross-compatible with the Ecomat series or older 3-speed models without significant adapter modifications. Always verify the bell housing pattern and output flange spline count against your existing transmission before installation.
