Overview
The ZF 4657.101.033 TRANSMISSION HOUSING is the central structural core of the WG190 and WG210 series transmissions. This OEM genuine part encloses the planetary gear sets, valve body, and torque converter assembly, providing the rigid mounting points required for precise gear alignment and hydraulic pressure containment. As the main casing, it absorbs all torsional and axial loads during operation. The SKU 4657.101.033 is a direct replacement for the original factory housing, ensuring exact bolt-hole alignment and oil gallery continuity. This housing works in concert with the 4657201027: HOUS.FRONT SECT and the 4657201012: HOUSING REAR PART to form the complete transmission envelope.
Symptoms of Failure
- External oil seepage at mating flanges: Cracks or porosity in the housing allow transmission fluid to escape, often pooling near the bellhousing or PTO cover. This is a common “ZF transmission housing oil leak” issue.
- Persistent gear slippage under load: Warpage of the housing face distorts valve body alignment, causing low clutch pack pressure. Operators notice “WG210 transmission slipping in third gear” during uphill hauling.
- Abnormal driveline vibration: A fractured housing mount or bearing bore wear leads to shaft misalignment. This manifests as “ZF WG190 vibration at highway speeds” that worsens with acceleration.
- Contaminated fluid from casting debris: Internal corrosion or fretting of the housing interior sheds metallic particles into the oil, clogging filters and causing “transmission overheating after rebuild.”
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 4657.101.033 |
| Material | High-grade aluminum alloy (A356-T6) |
| Dry Weight | 18.4 kg (40.6 lbs) |
| Overall Length | 485 mm |
| Overall Width | 320 mm |
| Overall Height | 275 mm |
| Bolt Hole Pattern | 12-point, M12 x 1.75 |
| OEM Reference | ZF 4657.101.033 |
Compatibility
This housing is engineered for the ZF WG190 and WG210 series, which includes the WG180, WG190, WG200, and WG210 models. It is specifically validated for use in WG190 and WG210 transmissions found in medium-duty trucks, fire apparatus, and off-highway equipment. The casting accommodates both standard and deep sump configurations. When replacing this housing, always inspect the 0631306792: CYLINDRICAL PIN for alignment dowel wear and replace the 0636100801: CAP SCREW fasteners to ensure proper clamp load.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657201027 | HOUS.FRONT SECT | Front section of transmission casing |
| 4657201012 | HOUSING REAR PART | Rear section of transmission casing |
| 0631306792 | CYLINDRICAL PIN | Alignment dowel for housing assembly |
| 0636100801 | CAP SCREW | Fastener for housing joint |
| 4656301148 | FIXING PLATE | Retains oil pump assembly |
| 4657301032 | SCREEN SHEET | Fine mesh filter for oil suction |
| 4657301033 | SCREEN SHEET | Coarse mesh pre-filter |
| 0636100803 | CAP SCREW | Fastener for valve body |
| 4681301040 | OIL FEED.HOUSG. | Oil supply tube housing |
| 4656301023 | GASKET | Seal between housing sections |
Frequently Asked Questions
Q: Can the 4657.101.033 housing be used in a ZF WG200 transmission?
A: Yes, this housing is fully compatible with WG200 models as the bolt pattern and oil gallery layout are identical across the WG190/WG210 family. Always verify the bellhousing bolt pattern matches your application.
Q: What torque specification should I use for the cap screws when installing this housing?
A: Use 85 Nm (63 ft-lbs) for the M12 cap screws. Apply thread locker to the 0636100801: CAP SCREW fasteners to prevent loosening under thermal cycling.
Q: Is the housing supplied with the cylindrical pin and gasket?
A: No, this is the bare housing only. You must order the 0631306792: CYLINDRICAL PIN and 4656301023: GASKET separately to complete the installation.
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ZF 4657.101.033 TRANSMISSION HOUSING – Housing RFQ Support
PartsZF helps B2B buyers source ZF 4657.101.033 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 4657.101.033 when sending your RFQ. PartsZF can review dotted, spaced, and compact number formats against the available product and documentation records.
Application Context
- Documentation reference: 4657023003
- Documentation reference: 4657024014
- Documentation reference: 4657024016
- Documentation reference: 4657024017
- 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 | 4657.101.033 |
|---|---|
| Normalized SKU | 4657101033 |
| Part name | TRANSMISSION HOUSING |
| Product category | housing |
| 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.
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
