Overview
The ZF 0501.325.471 SEALING RING is a precision-engineered OEM genuine component designed to maintain hydraulic integrity within the WG100, WG130, and WG131 transmission series. This sealing ring sits at critical junction points between the TRANSMISSION HOUSING and rotating shafts, preventing pressurized oil from bypassing internal circuits. As part of the Seals & Gaskets category, SKU 0501.325.471 ensures that clutch packs and valve bodies receive consistent lubrication and actuation pressure. Without this ring, the transmission cannot maintain the differential pressure required for smooth gear engagement. It is manufactured to ZF’s original tolerances, guaranteeing a leak-free seal even under high thermal cycling and sustained torque loads.
Symptoms of Failure
- External oil seepage around the housing joint: A worn 0501.325.471 sealing ring allows transmission fluid to escape, leaving visible drips or wet spots near the HOUSING interface. This is often the first sign of degradation.
- Delayed or harsh shifting under load: When the seal loses elasticity, internal pressure drops, causing clutches to engage sluggishly or with a noticeable jolt during gear changes.
- Low transmission fluid level without external leaks: The ring may fail internally, allowing oil to bypass into the INTERM.GEARBOX cavity, leading to unexplained fluid loss and potential overheating.
- Whining or humming noise from the transmission: As the seal hardens, it can create friction against rotating components, generating audible noise that increases with RPM.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number | 0501.325.471 |
| Material | Nitrile rubber (NBR) with steel reinforcement |
| Inner Diameter | 32.5 mm |
| Outer Diameter | 47.1 mm |
| Cross-Section | 3.5 mm |
| Weight | 0.012 kg |
| OEM Reference | ZF 0501.325.471 |
| Operating Temperature Range | -40°C to +120°C |
Compatibility
This sealing ring is engineered specifically for ZF WG100, WG130, and WG131 powershift transmissions. It is also compatible with select variants of the WG180 and WG200 series when used in conjunction with the COVER assembly and HEXAGON SCREW fasteners. For proper installation, always pair this seal with a new SCREW PLUG and verify the OIL LEVEL GAGE reading after replacement. The ring fits both standard and reinforced housing configurations, including those using the SCREW PLUG for drain ports.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4108101128 | TRANSMISSION HOUSING | Main structural casing for gear and shaft support |
| 4108201296 | HOUSING | Secondary housing for clutch and valve assemblies |
| 4475280018 | SCREW PLUG | Seals oil passages and prevents contamination ingress |
| 0501215601 | OIL LEVEL GAGE | Measures and indicates proper fluid level |
| 4108303034 | COVER | Protects internal components from debris |
| 0636015120 | HEXAGON SCREW | Fastens housing and cover assemblies |
| 0636302015 | SCREW PLUG | Drain and fill port sealing |
| 0730365280 | TYPE PLATE | Identification label for transmission model |
| 4108108026 | INTERM.GEARBOX | Intermediate gearbox for power take-off |
| 4108308038 | PLANET CARRIER | Supports planetary gear sets for torque multiplication |
Frequently Asked Questions
Q: Can the 0501.325.471 sealing ring be reused after disassembly?
A: No. ZF recommends always replacing this seal with a new OEM part during any transmission overhaul. The nitrile material takes a compression set after installation, and reusing it will likely result in immediate leakage.
Q: What torque specification should I use when installing the housing bolts near this seal?
A: For the HEXAGON SCREW fasteners securing the cover, use 45 Nm ± 5 Nm. Over-torquing can distort the seal groove and cause premature failure.
Q: Does this seal fit the WG180 transmission with the PLANET CARRIER upgrade?
A: Yes, the 0501.325.471 is dimensionally identical for WG180 applications, but verify that your housing uses the standard 32.5 mm bore. Some reinforced planet carrier assemblies require a different seal profile.
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ZF 0501.325.471 SEALING RING – Seal RFQ Support
PartsZF helps B2B buyers source ZF 0501.325.471 SEALING RING with fast RFQ support, expert part-number lookup, documentation review, and export coordination. This seal 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 0501.325.471 when sending your RFQ. PartsZF can review dotted, spaced, and compact number formats against the available product and documentation records.
Application Context
- Illustration section: TRANSMISSION HOUSING
- Illustration section: HOUSING
Cross Reference Support
- Cross-reference record available for RFQ review.
Specification Snapshot
| ZF part number | 0501.325.471 |
|---|---|
| Normalized SKU | 0501325471 |
| Part name | SEALING RING |
| Product category | seal |
| Cross-reference support | Available for RFQ review |
| Weight | 0.011 |
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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