Overview
The ZF 6057.018.276 CONTROL UNIT is a critical electro-hydraulic module designed specifically for the WG 171 Series transmission. This OEM genuine part governs the precise flow of transmission fluid, managing shift timing and clutch engagement within the valve body assembly. As the central command interface between the transmission control module and the hydraulic circuits, this unit directly influences drivability and torque delivery. The SKU 6057.018.276 is engineered to meet original factory specifications, ensuring seamless integration with the transmission’s internal architecture. When installed alongside a robust TRANSMISSION HOUSING, this control unit maintains the hydraulic integrity required for heavy-duty industrial applications.
Symptoms of Failure
- Erratic or delayed gear engagement: When the control unit wears, hydraulic pressure regulation fails, causing harsh shifts or a noticeable lag when moving from neutral to drive. This is a common search query for “ZF WG171 transmission shift delay.”
- Transmission fluid seepage at the valve body interface: Deteriorated seals within the control unit lead to external oil leaks, often mistaken for a failing gasket. Technicians frequently search for “ZF 6057.018.276 oil leak repair.”
- Intermittent gear slipping under load: A compromised control unit cannot maintain clutch pack pressure, resulting in momentary power loss during acceleration. This symptom is often described as “WG171 transmission slipping in 3rd gear.”
- Fault code P07XX related to solenoid performance: Internal electrical degradation triggers diagnostic trouble codes, requiring replacement of the unit rather than individual solenoids.
Technical Specifications
| Specification | Detail |
|---|---|
| OEM Part Number | 6057.018.276 |
| Material | Die-cast aluminum with integrated steel solenoid valves |
| Weight | 2.8 kg (6.2 lbs) |
| Dimensions (L x W x H) | 310 mm x 180 mm x 95 mm |
| Operating Pressure Range | 8–22 bar |
| OEM Reference | ZF 6057.018.276 (Genuine) |
Compatibility
This control unit is primarily designed for the ZF WG 171 Series transmission, commonly found in municipal trucks, fire apparatus, and medium-duty construction vehicles. While the WG171 is the direct application, the hydraulic architecture shares cross-compatibility with the WG180 and WG200 series when used with the correct HOUS.FRONT SECT and SCREEN SHEET. For proper installation, ensure the TUBE assembly is free of debris. Always verify the transmission serial number against ZF application charts before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4656101028 | TRANSMISSION HOUSING | Encloses and protects all internal gear and valve assemblies |
| 4656301066 | HOUS.FRONT SECT | Front section housing for pump and converter support |
| 4656201015 | SCREEN SHEET | Fine mesh filter protecting control unit from debris |
| 4656301037 | TUBE | Fluid transfer conduit between pump and valve body |
| 0634313514 | O-RING | Seals control unit ports against external leakage |
| 0636100803 | CAP SCREW | Secures control unit to valve body |
| 4656301042 | HOUSING REAR PART | Rear section housing for output shaft support |
| 0631306816 | CYLINDRICAL PIN | Alignment pin for control unit positioning |
| 0636100801 | CAP SCREW | Fastener for housing sections |
| 0636100160 | CAP SCREW | Mounting bolt for rear housing |
Frequently Asked Questions
Q: Can the ZF 6057.018.276 control unit be rebuilt instead of replaced?
A: While some technicians attempt solenoid replacement, the unit is laser-welded and calibrated as a sealed assembly. Rebuilding is not recommended due to the risk of hydraulic cross-leakage; OEM replacement ensures proper shift pressure curves.
Q: Does this part require programming after installation?
A: No. The 6057.018.276 is a passive hydraulic control unit and does not contain programmable memory. However, the vehicle’s transmission control module may need a relearn procedure after installation to adapt to the new valve tolerances.
Q: What is the typical lifespan of this control unit in a WG171?
A: In normal municipal service with proper fluid changes every 60,000 miles, the unit typically lasts 8–10 years. Contaminated fluid or debris from a failing SCREEN SHEET can significantly reduce this lifespan.
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ZF 6057.018.276 CONTROL UNIT – Control Unit RFQ Support
PartsZF helps B2B buyers source ZF 6057.018.276 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 6057.018.276 when sending your RFQ. PartsZF can review dotted, spaced, and compact number formats against the available product and documentation records.
Application Context
- Documentation reference: 4656073035
- 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 | 6057.018.276 |
|---|---|
| Normalized SKU | 6057018276 |
| 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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