Overview
The ZF 0630.361.038 SEALING CAP is a precision-engineered closure component designed to seal critical fluid passages within the WG 190, WG 191, WG 210, and WG 211 transmission series. This OEM genuine part sits at the interface between the TRANSMISSION HOUSING and the HOUS.FRONT SECT, preventing pressurized oil from escaping during high-torque operations. The SKU 0630.361.038 ensures a tight, vibration-resistant seal that maintains consistent hydraulic pressure across the gear train. When paired with the HOUSING REAR PART, this cap completes the sealed assembly that protects internal planetary gearsets from contamination.
Symptoms of Failure
- Oil weeping around the transmission bell housing — A worn 0630.361.038 cap allows thin oil films to escape, often mistaken for a main seal leak.
- Intermittent gear engagement delay — Loss of sealing integrity reduces hydraulic pressure, causing hesitation when shifting from neutral to drive.
- Visible corrosion or cracking on the cap surface — Thermal cycling can embrittle the material, leading to micro-fractures that bypass fluid.
- Contaminated transmission fluid — A failed seal lets dirt and moisture enter through the cap interface, accelerating wear on clutch packs.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number | 0630.361.038 |
| Material | Nitrile rubber with steel insert |
| Outer Diameter | 38 mm |
| Inner Diameter | 28 mm |
| Height | 12 mm |
| Weight | 0.018 kg |
| OEM Reference | ZF 0630.361.038 |
| Operating Temperature Range | -40°C to +150°C |
Compatibility
This sealing cap is engineered for the ZF WG 190, WG 191, WG 210, and WG 211 transmission families. It also fits select variants of the WG 180 and WG 200 series where the CYLINDRICAL PIN alignment bore matches the cap’s seating depth. Always verify the housing casting number before installation, as the cap interfaces directly with the TRANSMISSION HOUSING and HOUS.FRONT SECT to ensure proper sealing.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101039 | TRANSMISSION HOUSING | Main structural casing that encloses gear sets |
| 4657201028 | HOUS.FRONT SECT | Front section of the transmission housing |
| 4657201013 | HOUSING REAR PART | Rear housing section supporting output shaft |
| 0631306792 | CYLINDRICAL PIN | Alignment pin for housing assembly |
| 0636100801 | CAP SCREW | Fastener for securing sealing cap |
| 4656301148 | FIXING PLATE | Retainer plate for cap assembly |
| 4657301034 | SCREEN SHEET | Fine mesh filter for oil intake |
| 4657301035 | SCREEN SHEET | Coarse mesh filter for debris protection |
| 0636100803 | CAP SCREW | Secondary fastener for housing joint |
| 4681301040 | OIL FEED.HOUSG. | Oil supply channel to lubrication points |
Frequently Asked Questions
Q: Can the 0630.361.038 sealing cap be reused after removal?
A: No. The nitrile rubber compound compresses permanently during installation. Reusing the cap risks immediate oil bypass and pressure loss. Always install a new OEM cap.
Q: Does this cap require special sealant during installation?
A: No additional sealant is needed. The cap’s integrated steel insert provides a mechanical interference fit. However, ensure the mating surface on the TRANSMISSION HOUSING is clean and free of old gasket material.
Q: How does a failing cap affect shift quality in WG 210 series transmissions?
A: A compromised seal reduces clutch apply pressure by 10-15%, causing soft shifts and eventual clutch slip. This symptom is often misdiagnosed as a valve body issue.
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ZF 0630.361.038 SEALING CAP – Seal RFQ Support
PartsZF helps B2B buyers source ZF 0630.361.038 SEALING CAP 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 0630.361.038 when sending your RFQ. PartsZF can review dotted, spaced, and compact number formats against the available product and documentation records.
Application Context
- Documentation reference: 4657023001
- Documentation reference: 4657023003
- Documentation reference: 4657023004
- Documentation reference: 4657024014
- Illustration section: TRANSMISSION HOUSING
- Illustration section: POWER TAKE OFF
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 | 0630.361.038 |
|---|---|
| Normalized SKU | 0630361038 |
| Part name | SEALING CAP |
| Product category | seal |
| Cross-reference support | Available for RFQ review |
| Weight | 0.001 |
Image and Documentation Notes
Current product media status: diagram. 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
