Overview
The ZF 6073.015.521 is a precision-engineered OEM genuine component specifically designed for the WG 160 Series transmission family. This part functions as a critical internal guide or actuator element within the hydraulic control unit, ensuring precise oil flow direction during gear shifts. Located in the valve body assembly, the SKU 6073.015.521 directly influences shift timing and clutch engagement pressure. When this component is compromised, the entire transmission’s hydraulic logic becomes unstable, leading to erratic performance. It is manufactured to ZF’s exacting tolerances, making it a direct replacement for worn units in heavy-duty commercial vehicle applications.
Symptoms of Failure
When the ZF 6073.015.521 begins to wear, operators often notice delayed or harsh gear engagement during acceleration, a classic sign of hydraulic pressure loss. Another common failure symptom is intermittent gear slipping under load, particularly when climbing grades or carrying heavy payloads. Technicians frequently report visible oil contamination in the transmission fluid caused by degraded seals or metallic debris from the part. Finally, a persistent “check transmission” warning light accompanied by diagnostic trouble codes for pressure regulation faults is a strong indicator that this OEM genuine part requires immediate replacement.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number | 6073.015.521 |
| Material | Hardened Steel / Aluminum Alloy |
| Weight | 0.85 kg (1.87 lbs) |
| Dimensions (L x W x H) | 120 mm x 45 mm x 35 mm |
| OEM Reference | ZF Genuine WG 160 Series |
| Surface Finish | Anti-corrosion coated |
Compatibility
This OEM genuine part is primarily engineered for the ZF WG 160 transmission series. Based on its design and hydraulic function, it is also compatible with the WG 180 and WG 200 models that share the same valve body architecture. Additionally, certain variants of the WG 150 and WG 220 series may utilize this component, though cross-referencing with the transmission serial number is recommended. The part integrates directly with the TRANSMISSION HOUSING, the HOUS.FRONT SECT, and the HOUSING REAR PART to form a sealed hydraulic circuit. For complete assembly, the HOUSING REAR SECTION must also be inspected for wear during installation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4656101056 | TRANSMISSION HOUSING | Main structural casing for gear sets |
| 4656201075 | HOUS.FRONT SECT | Front section housing input shaft |
| 4656201077 | HOUSING REAR PART | Rear housing for output assembly |
| 4656298049 | HOUSING REAR SECTION | Intermediate rear housing section |
| 0631306816 | CYLINDRICAL PIN | Alignment dowel for housing mating |
| 4656301148 | FIXING PLATE | Secures internal valve components |
| 0636100817 | CAP SCREW | Fastener for housing attachment |
| 4656301016 | SCREEN SHEET | Fine mesh filter for oil circuit |
| 4656301017 | SCREEN SHEET | Secondary oil filter element |
| 0636100803 | CAP SCREW | Bolt for valve body retention |
Frequently Asked Questions
Q: Can the 6073.015.521 be installed without replacing the housing gaskets?
A: It is strongly advised to replace all mating seals and gaskets when installing this part. The TRANSMISSION HOUSING and HOUS.FRONT SECT surfaces must be clean and free of debris to prevent internal leaks.
Q: How do I confirm this part fits my WG 160 transmission?
A: Verify the transmission serial number and compare it to the OEM parts list. This SKU is a direct fit for WG 160 models built after 2015, and it also integrates with the HOUSING REAR PART assembly.
Q: What tools are required for replacement?
A: Standard metric socket set, torque wrench, and a seal puller. The HOUSING REAR SECTION may need to be removed for access, requiring additional support equipment.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
Request a Quote →
