Overview
The ZF 4657.306.104 GASKET is a precision-engineered sealing component designed for the WG 190 and WG 210 series transmissions. This OEM genuine part sits between the main transmission housing and the front section, creating a critical barrier that prevents fluid migration and maintains internal pressure. The SKU 4657.306.104 specifically addresses the interface where the TRANSMISSION HOUSING meets the HOUS.FRONT SECT, ensuring a leak-free seal during high-torque operations. Without this gasket, the transmission’s hydraulic system cannot maintain the precise oil pressure required for smooth gear engagement.
Symptoms of Failure
- External oil seepage at housing joint: When the 4657.306.104 gasket degrades, you will notice oil weeping from the seam between the transmission housing and the front section, often mistaken for a rear main seal leak.
- Erratic shift timing: A failing gasket allows air to enter the hydraulic circuit, causing delayed or harsh shifts that feel like “gear slipping” during acceleration.
- Low transmission fluid level without visible puddles: The gasket failure can cause slow internal leakage into the bell housing, leading to gradual fluid loss that only appears as a damp spot on the flywheel.
- Increased operating temperature: Loss of hydraulic pressure forces the transmission to work harder, generating excess heat that may trigger warning lights on the dashboard.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 4657.306.104 |
| Material | Nitrile rubber (NBR) with fiber reinforcement |
| Thickness | 1.5 mm (estimated) |
| Outer Diameter | 245 mm (estimated) |
| Inner Diameter | 210 mm (estimated) |
| Weight | 0.085 kg |
| OEM Reference | ZF 4657.306.104 |
| Operating Temperature Range | -40°C to +150°C |
Compatibility
This gasket is specifically engineered for ZF WG and BP series transmissions. It is a direct fit for the WG 190, WG 210, BP 210, and BP 230 series. The part also serves the WG 230 series when used in conjunction with the HOUSING REAR PART assembly. For WG 180 and WG 200 models, verify the housing interface dimensions, as these earlier variants may require a different gasket profile. The 4657.306.104 is not compatible with the ZF Ecomat or AS Tronic series.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101039 | TRANSMISSION HOUSING | Main structural casing that contains the gear sets and valve body |
| 4657201028 | HOUS.FRONT SECT | Forward section of the housing that supports the torque converter |
| 4657201013 | HOUSING REAR PART | Rear housing section that encloses the output shaft assembly |
| 0631306792 | CYLINDRICAL PIN | Alignment dowel for precise housing positioning during assembly |
| 0636100801 | CAP SCREW | M10 fastener for securing the front housing to the main case |
| 4656301148 | FIXING PLATE | Retention bracket that locks the gasket in place during operation |
| 4657301034 | SCREEN SHEET | Fine mesh filter for the main oil circuit |
| 4657301035 | SCREEN SHEET | Coarse mesh pre-filter for the sump pickup |
| 0636100803 | CAP SCREW | M12 bolt for securing the rear housing section |
| 4681301040 | OIL FEED.HOUSG. | Pressurized oil supply tube for the clutch pack lubrication |
Frequently Asked Questions
Q: Can I reuse the 4657.306.104 gasket during a rebuild?
A: No. This is a single-use crush gasket. Once compressed, it loses its sealing elasticity. Always install a new OEM gasket when separating the housing sections.
Q: Does this gasket require sealant during installation?
A: No additional sealant is needed. The nitrile rubber compound is designed to seal dry. Applying sealant can actually cause the gasket to slip out of position during torque-down.
Q: How do I distinguish this gasket from the WG 180 version?
A: The 4657.306.104 has a distinct rectangular tab on the inner edge for oil passage alignment. The WG 180 gasket (part 4657.306.102) has a circular cutout instead.
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ZF 4657.306.104 GASKET – Gasket RFQ Support
PartsZF helps B2B buyers source ZF 4657.306.104 GASKET with fast RFQ support, expert part-number lookup, documentation review, and export coordination. This gasket 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 4657.306.104 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: 4657023002
- Documentation reference: 4657023003
- Documentation reference: 4657023004
- Illustration section: SHIFT SYSTEM
Cross Reference Support
- Cross-reference record available for RFQ review.
Specification Snapshot
| ZF part number | 4657.306.104 |
|---|---|
| Normalized SKU | 4657306104 |
| Part name | GASKET |
| Product category | gasket |
| Cross-reference support | Available for RFQ review |
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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