Overview
The ZF 4681.024.013 4 BP 190 BASICPOWER Transmission Assembly is a complete, ready-to-install unit designed for heavy-duty commercial vehicle applications. This assembly integrates the hydraulic control system, planetary gear sets, and torque converter into a single, factory-sealed package. As a core component of the ZF BASICPOWER series, it manages power distribution from the engine to the driveline, ensuring smooth gear engagement under high load conditions. The SKU 4681.024.013 specifically denotes a 4-speed configuration with a BP 190 rating, optimized for mid-range torque demands in municipal trucks and construction machinery.
Symptoms of Failure
When the ZF 4681.024.013 assembly begins to degrade, operators typically notice these specific failure modes:
- Delayed or harsh engagement when shifting from Neutral to Drive or Reverse, often accompanied by a loud clunk. This indicates worn clutch packs or valve body wear.
- Intermittent gear slipping under load, particularly when climbing grades or accelerating from a stop. The transmission may momentarily lose power before re-engaging.
- External oil seepage at the bell housing or output flange, leaving visible drips on the ground. This is a classic sign of seal degradation in the BASICPOWER series.
- Erratic shift patterns where the transmission hunts between gears or refuses to shift into 4th gear, pointing to solenoid or hydraulic pressure loss.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number / SKU | 4681.024.013 |
| Assembly Type | Complete Unit (4 BP 190 BASICPOWER) |
| Dry Weight (approx.) | 185 kg (408 lbs) |
| Overall Length | 720 mm |
| Housing Material | High-tensile aluminum alloy |
| Torque Capacity | 1,900 Nm (1,401 lb-ft) |
| OEM Reference | ZF 4681.024.013 |
| Fluid Type | ZF TE-ML 04D / Dexron III |
Compatibility
This assembly is engineered for the ZF BASICPOWER BP 210 and BP 230 Series transmission families. It directly replaces units in the following models:
- ZF WG180 (4-speed variants with BP 190 rating)
- ZF WG200 (all BASICPOWER configurations)
- ZF 4 BP 190 (original equipment in MAN TGM and DAF LF chassis)
- ZF 4 BP 210 (early production runs with aluminum housings)
Note: Always verify the bell housing pattern and torque converter pilot diameter before installation. This unit is not backward-compatible with the older ZF 4 HP 500 series without adapter plates.
