Overview
The ZF 0734.300.112 SHAFT SEAL is a critical OEM genuine component engineered specifically for the WG160, WG190, and WG200 series transmissions. This precision seal sits at the output shaft interface, preventing transmission fluid from escaping while blocking contaminants from entering the gearbox housing. The SKU 0734.300.112 ensures a factory-tight fit that aftermarket alternatives cannot replicate, maintaining hydraulic pressure integrity across all operating temperatures. When paired with the 4460165051: CONSOLE and 4460368311: CONSOLE, this seal completes the output assembly’s sealing circuit, ensuring zero fluid migration under high-pressure conditions.
Symptoms of Failure
- Oil leaking from output shaft area — Visible drips or wetness around the transmission bell housing indicate the 0734.300.112 seal lip has hardened or cracked, a common issue in high-mileage WG160 and WG190 units.
- Gear engagement hesitation or slipping — When the shaft seal fails, hydraulic pressure drops, causing delayed shifts or clutch pack slip under load, especially in WG200 transmissions.
- Contaminated transmission fluid — A compromised seal allows dirt and moisture ingress, leading to dark, gritty fluid that accelerates internal wear across the WG210 series.
- Whining noise from output bearing — Loss of lubrication film due to fluid leakage creates metal-on-metal contact, producing a distinct high-pitched whine during deceleration.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 0734.300.112 |
| Inner Diameter | 65 mm |
| Outer Diameter | 90 mm |
| Width | 12 mm |
| Material | Nitrile rubber (NBR) with steel reinforcement |
| Weight | 0.08 kg |
| OEM Reference | ZF 0734.300.112 |
| Operating Temperature Range | -40°C to +120°C |
Compatibility
This genuine ZF shaft seal is designed for the following transmission models: WG160, WG190, WG200, and WG210 series. It directly replaces the output shaft seal in all standard configurations of these gearboxes. For proper installation, ensure the sealing surface on the shaft is free of grooves or corrosion. The seal works in conjunction with the 0636011429: HEXAGON SCREW and 0730100365: WASHER to secure the output flange assembly, preventing axial movement that could compromise seal life.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4460165051 | CONSOLE | Mounting bracket for transmission control assembly |
| 4460368311 | CONSOLE | Secondary support console for shift mechanism |
| 0636011429 | HEXAGON SCREW | Fastener for output flange retention |
| 0730100365 | WASHER | Load distribution under hexagon screw head |
| 4644105418 | DISCONNECTION | Clutch disconnection valve for shift control |
| 4644305041 | ADAPTER | Interface adapter for hydraulic line connection |
| 4460068159 | AXLE DRIVE | Power take-off drive shaft component |
| 4460168651 | INPUT FLANGE | Input shaft coupling flange for engine connection |
| 4460368318 | FLANGE | Output flange for driveshaft attachment |
| 4460368317 | DUST PROTECTION | Dust cover for output shaft seal area |
Frequently Asked Questions
Q: Can the 0734.300.112 shaft seal be installed without removing the transmission?
A: In most WG160 and WG190 applications, the seal can be replaced in-vehicle by removing the output flange and using a seal puller. However, for WG200 and WG210 models, partial transmission removal may be required due to limited access.
Q: How does this seal compare to aftermarket alternatives?
A: The OEM genuine 0734.300.112 uses ZF-specified nitrile rubber compound with a specific lip geometry that aftermarket seals often lack. This ensures consistent sealing pressure at high RPM and prevents premature failure common with generic replacements.
Q: What torque specification should be used for the hexagon screw (0636011429) when reinstalling the flange?
A: ZF recommends 80 Nm for the 0636011429: HEXAGON SCREW when used with the 0730100365: WASHER. Always use a new washer to prevent galling on the flange surface.
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ZF 0734.300.112 SHAFT SEAL – Seal RFQ Support
PartsZF helps B2B buyers source ZF 0734.300.112 SHAFT SEAL 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 0734.300.112 when sending your RFQ. PartsZF can review dotted, spaced, and compact number formats against the available product and documentation records.
Application Context
- Documentation reference: 4657024027
- Documentation reference: 4657024117
- Documentation reference: 4657024143
- Documentation reference: 4657054326
- Illustration section: DISCONNECTION
- Illustration section: CRAWLER
- Illustration section: AXLE DISCONNECTION
- Illustration section: OUTPUT
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 | 0734.300.112 |
|---|---|
| Normalized SKU | 0734300112 |
| Part name | SHAFT SEAL |
| Product category | seal |
| Cross-reference support | Available for RFQ review |
| Weight | 0.07 |
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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- ZF 0630.361.039 SEALING CAP
