Overview
The ZF 6057.018.347 CONTROL UNIT is a critical electro-hydraulic interface module designed exclusively for the WG 171 Series automatic transmissions. This OEM genuine part governs shift timing, pressure modulation, and clutch engagement by processing electronic signals from the transmission control module (TCM) and converting them into precise hydraulic actions. Mounted directly onto the valve body assembly, the control unit ensures seamless gear transitions under heavy-duty industrial loads. The SKU 6057.018.347 is manufactured to ZF’s original specifications, guaranteeing direct fitment and long service life. It works in concert with the 4656101028: TRANSMISSION HOUSING and the 4656301066: HOUS.FRONT SECT to maintain proper fluid routing and structural integrity.
Symptoms of Failure
- Erratic or delayed gear engagement — The transmission hesitates before shifting into drive or reverse, often accompanied by a harsh clunk. This is a classic sign of a failing control unit losing signal integrity.
- Intermittent gear slipping under load — When climbing grades or hauling heavy loads, the transmission may momentarily lose power as the control unit fails to maintain clutch pressure, leading to RPM flare without acceleration.
- Transmission stuck in limp mode — The vehicle defaults to a single gear (usually 2nd or 3rd) and refuses to upshift or downshift, triggered by internal electrical faults within the 6057.018.347 unit.
- Oil contamination from internal wear — Debris from a deteriorating control unit can migrate into the hydraulic circuit, clogging the 4656201015: SCREEN SHEET and the 4656301037: TUBE, accelerating wear on other components.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number (SKU) | 6057.018.347 |
| OEM Reference | ZF 6057.018.347 |
| Material | Die-cast aluminum housing with integrated solenoid coils |
| Weight | 2.4 kg (5.3 lbs) |
| Dimensions (L x W x H) | 210 mm x 140 mm x 65 mm |
| Operating Voltage | 12V / 24V DC (vehicle dependent) |
| Sealing Type | Integrated O-ring grooves (compatible with 0634313514: O-RING) |
| Fastener Torque Spec | 8 Nm (use 0636100803: CAP SCREW) |
Compatibility
This control unit is specifically engineered for the ZF WG 171 Series transmissions. It is also compatible with the closely related WG 180 and WG 200 models that share the same valve body architecture and electronic interface. The unit interfaces directly with the 4656301042: HOUSING REAR PART and is secured using 0631306816: CYLINDRICAL PIN alignment dowels. Always verify your transmission serial number before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4656101028 | TRANSMISSION HOUSING | Main structural casing for gear train and valve body |
| 4656301066 | HOUS.FRONT SECT | Front section housing torque converter and pump |
| 4656201015 | SCREEN SHEET | Fine mesh filter protecting hydraulic passages from debris |
| 4656301037 | TUBE | Fluid transfer conduit between valve body and clutch packs |
| 0634313514 | O-RING | Seals control unit to valve body mating surface |
| 0636100803 | CAP SCREW | M8 fastener for securing control unit to housing |
| 4656301042 | HOUSING REAR PART | Rear housing section supporting output shaft and governor |
| 0631306816 | CYLINDRICAL PIN | Alignment dowel for precise component positioning |
| 0636100801 | CAP SCREW | M6 fastener for auxiliary bracket attachment |
| 0636100160 | CAP SCREW | M10 fastener for transmission housing assembly |
Frequently Asked Questions
Q: Can the 6057.018.347 control unit be repaired, or must it be replaced?
A: This unit is a sealed, non-serviceable assembly. Internal solenoid or circuit board failures require full replacement. Attempting repairs often leads to intermittent faults and potential damage to the SCREEN SHEET from debris.
Q: What is the typical lifespan of this control unit in a WG 171 transmission?
A: Under normal industrial duty cycles (8-10 hours/day), the unit typically lasts 4,000-6,000 operating hours. Harsh thermal cycling or contaminated fluid can reduce this significantly.
Q: Do I need to replace the O-ring and cap screws when installing a new control unit?
A: Yes. ZF recommends always installing a fresh 0634313514 O-RING and new 0636100803 CAP SCREW to guarantee proper sealing and torque retention.
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ZF 6057.018.347 CONTROL UNIT – Control Unit RFQ Support
PartsZF helps B2B buyers source ZF 6057.018.347 CONTROL UNIT with fast RFQ support, expert part-number lookup, documentation review, and export coordination. This control unit page is built from confirmed catalog, media, and reference data to reduce sourcing uncertainty for construction machinery transmission parts.
Part-Number Summary
Use ZF number 6057.018.347 when sending your RFQ. PartsZF can review dotted, spaced, and compact number formats against the available product and documentation records.
Application Context
- Documentation reference: 4656073041
- Documentation reference available for RFQ review
- Illustration section: LOOSE PARTS
Cross Reference Support
If you have an OEM number, old supplier number, or visible marking, include it with your RFQ so PartsZF can compare it with the available records.
Specification Snapshot
| ZF part number | 6057.018.347 |
|---|---|
| Normalized SKU | 6057018347 |
| Part name | CONTROL UNIT |
| Product category | control unit |
| Cross-reference support | Available for RFQ review |
Image and Documentation Notes
Current product media status: fallback. Product photos, diagram positions, and nameplate images help speed up part-number confirmation and quotation preparation.
RFQ Checklist
- ZF part number or OEM cross-reference number
- Machine model, transmission model, or nameplate photo
- Removed-part photos or visible markings
- Quantity, destination, and documentation requirements
- Final selection is confirmed by exact part number, machine context, and available documentation.
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