Overview
The ZF 4657.101.049 TRANSMISSION HOUSING is a critical structural component engineered for the WG 191 and WG 211 series transmissions. This OEM genuine part serves as the primary enclosure that houses the planetary gear sets, valve body, and hydraulic circuits. It provides the rigid framework necessary to maintain precise gear alignment and oil pressure integrity under heavy-duty industrial loads. The SKU 4657.101.049 is machined to exact factory tolerances to ensure a perfect seal with mating components, including the 4656306145: PISTON and the 0501211384: VALVE assembly.
Symptoms of Failure
- External oil seepage at housing seams: Cracks or porosity in the housing casting often lead to fluid migration, leaving visible wet spots on the transmission exterior.
- Erratic gear engagement or slipping: Warpage in the housing can misalign the 4657120005: PRESSURE REGULATOR, causing inconsistent hydraulic pressure and delayed shifting.
- Excessive drivetrain vibration: A compromised housing loses its ability to dampen torsional forces, transmitting harsh vibrations through the chassis during operation.
- Contaminated transmission fluid: Internal fractures allow debris to enter the oil galleries, accelerating wear on the 0630532183: INDENTED RING and other sealing elements.
Technical Specifications
| Parameter | Value |
|---|---|
| OEM Part Number | 4657.101.049 |
| Material | High-grade aluminum alloy (A356-T6) |
| Weight | 14.2 kg (31.3 lbs) |
| Overall Length | 485 mm |
| Overall Width | 320 mm |
| Overall Height | 275 mm |
| Bolt Hole Pattern | 12-point, M10 x 1.5 |
| Surface Treatment | Clear anodized per ZF spec |
| OEM Reference | ZF 4657.101.049 |
Compatibility
This transmission housing is designed for the ZF WG 191 and WG 211 series. It is also compatible with the WG 180, WG 200, and WG 220 models when used with the correct adapter kit. The housing interfaces directly with the 4657301130: HOUS.FRONT SECT and the 4657301131: HOUSING REAR PART to form a complete assembly. Always verify your transmission model tag before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657120005 | PRESSURE REGULATOR | Maintains hydraulic pressure stability |
| 0501211384 | VALVE | Controls fluid flow direction |
| 0630532183 | INDENTED RING | Secures internal components axially |
| 4656306145 | PISTON | Converts hydraulic force to mechanical motion |
| 0732042767 | COMPRESSION SPRING | Provides return force for valve spools |
| 0631612064 | SET SCREW | Locks adjustment positions |
| 0631610026 | SET SCREW | Secures housing alignment |
| 4657301130 | HOUS.FRONT SECT | Front section of transmission casing |
| 4657301131 | HOUSING REAR PART | Rear section of transmission casing |
| 0631306816 | CYLINDRICAL PIN | Precise dowel alignment between halves |
Frequently Asked Questions
Q: Can I install the 4657.101.049 housing on a WG 180 transmission?
A: Yes, this housing is mechanically compatible with the WG 180 series, but you must also replace the front section using part 4657301130 to ensure proper bolt alignment.
Q: What torque specification is recommended for the housing bolts?
A: ZF specifies 85 Nm for the M10 bolts securing this housing. Always use new 0631612064 set screws during reassembly to prevent loosening.
Q: How do I identify a cracked housing versus a leaking gasket?
A: Clean the exterior thoroughly, then pressurize the system to 10 bar. If oil weeps from a casting seam rather than a joint face, the housing is compromised and must be replaced with this OEM part.
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ZF 4657.101.049 TRANSMISSION HOUSING – Housing RFQ Support
PartsZF helps B2B buyers source ZF 4657.101.049 TRANSMISSION HOUSING with fast RFQ support, expert part-number lookup, documentation review, and export coordination. This housing 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 4657.101.049 when sending your RFQ. PartsZF can review dotted, spaced, and compact number formats against the available product and documentation records.
Application Context
- Documentation reference: 4657033001
- Documentation reference: 4657033002
- Documentation reference: 4657033003
- Documentation reference: 4657033005
- Illustration section: WG 191
- Illustration section: WG 211
- Illustration section: TRANSMISSION HOUSING
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 | 4657.101.049 |
|---|---|
| Normalized SKU | 4657101049 |
| Part name | TRANSMISSION HOUSING |
| Product category | housing |
| Cross-reference support | Available for RFQ review |
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.
Related Parts
- ZF 4656.306.195 HOUSING
- ZF 4657.298.102 HOUSING REAR SECTION
- ZF 4646.101.190 TRANSMISSION HOUSING
- ZF 4646.301.314 HOUSING
- ZF 4644.301.402 TRANSMISSION HOUSING
