Overview
The ZF 6057.318.279 EPROM Memory is a critical electronic component within the transmission control system of heavy-duty construction machinery. This OEM genuine part stores the firmware and calibration data that governs shift timing, pressure modulation, and torque converter lock-up strategies. Located on the main control unit board inside the transmission housing, the EPROM chip ensures that the gearbox operates according to the specific load and speed parameters of the vehicle. The SKU 6057.318.279 is a factory-programmed memory module that cannot be reflashed in the field, making a direct replacement essential for restoring factory performance. When paired with a functioning 6009365007: CONTROL UNIT, this EPROM delivers precise electronic commands to solenoids and valves.
Symptoms of Failure
- Erratic shift patterns and harsh engagement: A corrupted EPROM memory causes the transmission to shift at incorrect RPMs or slam into gear, often triggering a “transmission fault” warning on the dashboard.
- Loss of programmed torque converter lock-up: The converter fails to lock at highway speeds, leading to excessive heat buildup and a 15-20% drop in fuel efficiency during operation.
- Intermittent “limp mode” activation: The control unit defaults to a single gear (usually 2nd) when the EPROM fails to communicate calibration data, forcing the machine to operate at reduced speed until the chip is replaced.
- Complete no-shift condition: In severe cases, the transmission remains in neutral or park, with no response to gear selector inputs, as the control unit cannot read the stored shift maps.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 6057.318.279 |
| Component Type | EPROM Memory Chip (Erasable Programmable Read-Only Memory) |
| Memory Capacity | 64 KB (estimated) |
| Operating Voltage | 5V DC (from control unit) |
| Material | Ceramic package with UV-erasable quartz window |
| Weight | 0.02 kg (0.04 lbs) |
| Dimensions (L x W x H) | 20 mm x 12 mm x 4 mm |
| OEM Reference | ZF 6057.318.279 |
| Operating Temperature | -40°C to +125°C |
Compatibility
This EPROM memory is specifically programmed for ZF transmissions used in construction and agricultural machinery. Based on the part type and control unit interface, it is compatible with the following ZF transmission models: WG180, WG200, WG211, and WG310. These gearboxes are commonly found in wheel loaders, excavators, and telescopic handlers from manufacturers such as Caterpillar, Volvo, and JCB. Always verify the existing control unit revision before installation; the 6009365800: TYPE PLATE on the transmission housing provides the exact model code and serial number needed to confirm compatibility.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 6009365007 | CONTROL UNIT | Houses the EPROM and executes shift logic; processes sensor inputs |
| 6009365800 | TYPE PLATE | Provides transmission model and serial number for part verification |
| 6057.318.279 | EPROM MEMORY | Stores calibration data and shift maps for the control unit |
| 6009365015 | WIRING HARNESS | Connects control unit to solenoids and speed sensors |
| 6009365022 | PRESSURE SENSOR | Monitors clutch pressure for adaptive shift control |
