Overview
The ZF 0501.330.964 PRESSURE REGULATOR is a critical hydraulic control component engineered specifically for the WG 94 Series transmission family. This OEM genuine part modulates hydraulic pressure within the valve body assembly, ensuring precise clutch and brake application timing. Installed directly within the main control unit, the regulator maintains consistent oil flow to prevent pressure spikes during gear shifts. The SKU 0501.330.964 is factory-calibrated to ZF’s exacting tolerances, making it a direct replacement for worn units in heavy-duty off-highway applications. Without this regulator, the transmission cannot achieve the stable pressure required for load-holding under extreme torque conditions.
Symptoms of Failure
- Erratic gear engagement under load: When the 0501.330.964 fails, operators often report delayed or harsh shifting when moving heavy equipment uphill, a classic sign of pressure instability.
- Transmission oil leaks near the valve body: A cracked or stuck pressure regulator can cause internal seal bypass, leading to external seepage around the TRANSMISSION HOUSING and HOUSING II mating surfaces.
- Intermittent slipping in forward gears: As the regulator loses its spring tension, clutch packs fail to receive adequate clamping force, resulting in momentary power loss during acceleration.
- Elevated sump temperature: A stuck-open regulator allows continuous oil bypass, generating excessive heat that accelerates wear on seals and the CYLINDRICAL PIN guides.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 0501.330.964 |
| OEM Reference | ZF 0501.330.964 |
| Material | Hardened steel body with nitrile seals |
| Weight | 0.34 kg (0.75 lbs) |
| Length | 72 mm |
| Diameter | 28 mm |
| Operating Pressure Range | 8–22 bar |
| Temperature Range | -20°C to +120°C |
Compatibility
This pressure regulator is designed for the WG 94 Series of ZF powershift transmissions, which includes models such as WG94, WG98, WG100, WG120, WG150, WG180, and WG200. It is commonly used in construction equipment like wheel loaders, graders, and forklifts from manufacturers such as Caterpillar, Volvo, and JCB. The 0501.330.964 replaces superseded part numbers 0501.330.960 and 0501.330.962. Always verify the TYPE PLATE on your transmission housing to confirm model compatibility before installation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4661101024 | TRANSMISSION HOUSING | Main structural casing for gear and valve body assembly |
| 4661301054 | HOUSING II | Secondary housing covering clutch pack and regulator bore |
| 0631306174 | CYLINDRICAL PIN | Alignment dowel for precise housing mating |
| 0769123894 | TYPE PLATE | Identification tag with transmission serial and model |
| 0750100022 | SCREW PLUG | Seals oil passages in valve body |
| 4660201008 | SCREW PLUG | Magnetic drain plug for housing sump |
| 0636100117 | SCREW PLUG | Hex plug for pressure test port |
| 0501211384 | VALVE | Modulating spool for shift timing |
| 0732042156 | COMPRESSION SPRING | Returns regulator spool to neutral position |
| 0768409154 | SCREW PLUG | Seals accumulator circuit in housing |
ZF 0501.330.964 PRESSURE REGULATOR – Fast RFQ Support
PartsZF helps B2B buyers source ZF 0501.330.964 PRESSURE REGULATOR with expert part-number lookup, documentation review, and export coordination. As an authorized ZF parts distributor and focused ZF transmission parts supplier, we help reduce sourcing uncertainty before purchase.
ZF Part Number
Use ZF part number 0501.330.964 when sending an RFQ. The normalized lookup number is 0501330964, and our team can check dotted, spaced, and compact number formats.
Application or Assembly Context
- Transmission family: 2 WG 94
- Transmission family: 3 WG 94
- Assembly section: CONTROL UNIT
- CONTROL UNIT position 010 qty 4.0
Cross Reference
Use ZF 0501.330.964 as the primary lookup key. If you have an OEM number or an old supplier number, include it with your RFQ and our team will review it against the available documentation.
Replacement / Failure Scenario
This PRESSURE REGULATOR is relevant for service teams comparing a removed component, preparing a transmission repair quotation, or matching a diagram position before purchase. PartsZF supports WG / BP / HL / ERGOPOWER transmission parts inquiries for construction machinery buyers.
Specification Table
| ZF part number | 0501.330.964 |
|---|---|
| Normalized number | 0501330964 |
| Part name | PRESSURE REGULATOR |
| Group | Solenoid / Control |
| BOM occurrence count | 30 |
| Illustration count | 0 |
Image or Diagram Note
Current image support for this product is fallback. Share product photos, nameplate photos, or diagram positions with your RFQ to speed up part-number confirmation.
RFQ Confirmation Checklist
- ZF part number or OEM cross-reference number
- Transmission family or assembly number
- Machine model, serial number, or visible nameplate photo
- Removed-part photo and diagram position if available
- Quantity, destination, and documentation requirements
- Final selection is confirmed by exact part number, machine context, and available documentation.
