Overview
The ZF 4657.201.170 HOUSING REAR PART is a critical structural component designed specifically for the WG190 transmission series, though it also serves select variants within the WG 210 and WG 230 families. This OEM genuine part forms the aft enclosure of the gearbox, protecting internal rotating assemblies while providing precise alignment for output shafts and bearing sets. The SKU 4657.201.170 interfaces directly with the 4657101082: TRANSMISSION HOUSING to create a sealed, pressurized environment essential for proper lubrication and torque transfer. Manufactured from high-strength cast alloy, this housing rear part ensures dimensional stability under extreme thermal and mechanical loads.
Symptoms of Failure
- Persistent oil seepage at the rear flange: When the housing rear part develops stress fractures or corrosion, transmission fluid often escapes around the mating surface, leading to low fluid levels and potential gear damage.
- Abnormal driveline vibration during acceleration: A warped or cracked housing rear part can misalign the output bearing support, causing rhythmic shaking that intensifies under load.
- Whining or grinding noises from the rear section: Worn mounting points allow the 4657298102: HOUSING REAR SECTION to shift slightly, creating metal-on-metal contact with rotating gears.
- Difficulty engaging reverse gear: Structural deformation in the housing rear part can obstruct shift fork travel, resulting in incomplete gear engagement.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 4657.201.170 |
| Material | High-grade cast aluminum alloy (A356-T6) |
| Weight | 4.8 kg (10.6 lbs) |
| Overall Length | 312 mm |
| Flange Diameter | 198 mm |
| Bolt Hole Pattern | 8 x M12 on 170 mm PCD |
| OEM Reference | ZF 4657.201.170 |
| Seal Type | Integrated lip seal groove (Ø85 mm) |
Compatibility
This housing rear part is engineered primarily for the ZF WG190 transmission, but it also fits select builds within the WG180, WG200, WG210, and WG230 series. It is commonly paired with the 4657201166: HOUS.FRONT SECT to complete the main casing assembly. For proper installation, the 0631306816: CYLINDRICAL PIN must be used to align the housing halves precisely. Always verify your transmission’s serial number against ZF’s compatibility charts before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101082 | TRANSMISSION HOUSING | Main structural body for gear and shaft support |
| 4657201166 | HOUS.FRONT SECT | Front section enclosing the input shaft and pump |
| 4657298102 | HOUSING REAR SECTION | Alternate rear housing variant for specific ratios |
| 0631306816 | CYLINDRICAL PIN | Alignment dowel for housing mating surfaces |
| 0636100801 | CAP SCREW | Fastener for securing housing sections |
| 4656301148 | FIXING PLATE | Retains bearing outer race in position |
| 4657301032 | SCREEN SHEET | Fine mesh filter for oil return circuit |
| 4657301033 | SCREEN SHEET | Coarse mesh pre-filter for sump protection |
| 0636100803 | CAP SCREW | Longer fastener for rear housing attachment |
| 4681301040 | OIL FEED.HOUSG. | Pressurized oil delivery channel to bearings |
Frequently Asked Questions
Q: Can the 4657.201.170 housing rear part be repaired if cracked?
A: Welding is not recommended due to the complex thermal stresses in cast aluminum. Replacement with an OEM genuine part ensures the original fatigue life and dimensional accuracy.
Q: Does this part include the rear seal?
A: No, the housing rear part is supplied as a bare casting without seals. You must order the appropriate output shaft seal separately based on your transmission’s shaft diameter.
Q: How do I confirm compatibility with my WG210 transmission?
A: Check the casting number on your existing housing rear part. If it matches 4657.201.170, it is a direct fit. For WG210 units with a different suffix, consult our compatibility team with your full transmission serial number.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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ZF 4657.201.170 HOUSING REAR PART – Housing RFQ Support
PartsZF helps B2B buyers source ZF 4657.201.170 HOUSING REAR PART 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 4657.201.170 when sending your RFQ. PartsZF can review dotted, spaced, and compact number formats against the available product and documentation records.
Application Context
- Documentation reference: 4657023101
- Documentation reference: 4657023102
- Documentation reference: 4657053101
- Documentation reference: 4657053103
- 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 | 4657.201.170 |
|---|---|
| Normalized SKU | 4657201170 |
| Part name | HOUSING REAR PART |
| 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
