Overview
The ZF 4681.201.008 HOUSING REAR PART is a critical structural component engineered specifically for the BP210 and BP230 series transmissions. This OEM genuine part encloses the rear section of the gear train, providing essential support for the output shaft and bearing assemblies. By maintaining precise alignment of internal components, the housing rear part ensures efficient torque transfer and long-term durability. The SKU 4681.201.008 is precision-cast from high-strength aluminum alloy to withstand extreme thermal and mechanical loads. It works in concert with the 4681101002: TRANSMISSION HOUSING and the 4681201007: HOUS.FRONT SECT to form a complete, sealed transmission envelope.
Symptoms of Failure
- Rear housing oil leaks: Cracks or warping in the rear housing cause transmission fluid to seep from the output shaft area, leading to low fluid levels and overheating.
- Gear slipping under load: A worn housing rear part allows bearing play, misaligning gears and causing intermittent power loss during acceleration.
- Unusual whining or grinding noises: Distorted housing surfaces create uneven gear mesh, producing metallic sounds that worsen with speed.
- Vibration at the driveshaft: Structural fatigue in the rear housing transmits excessive vibration through the driveline, especially during deceleration.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number | 4681.201.008 |
| Material | Die-cast aluminum alloy (A356-T6) |
| Weight | 4.2 kg (9.3 lbs) |
| Dimensions (L x W x H) | 320 mm x 240 mm x 180 mm |
| OEM Reference | ZF 4681.201.008 |
| Bolt Torque Spec | 45 Nm ± 5 Nm |
| Sealing Surface | Machined flatness ≤ 0.05 mm |
Compatibility
This housing rear part is designed for ZF BP210 and BP230 series transmissions, commonly found in medium-duty trucks, buses, and industrial equipment. It is also compatible with the WG180 and WG200 models that share the same rear housing architecture. For complete assembly, pair this part with the 4681298001: CASE and secure it using the 0631306074: CYLINDRICAL PIN for precise alignment. Always verify your transmission model number before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4681101002 | TRANSMISSION HOUSING | Main structural shell for gear assembly |
| 4681201007 | HOUS.FRONT SECT | Front section housing for input shaft |
| 4681298001 | CASE | Enclosure for internal gear sets |
| 0631306074 | CYLINDRICAL PIN | Alignment dowel for housing sections |
| 0636100801 | CAP SCREW | Fastener for housing attachment |
| 4681301015 | FIXING PLATE | Secures internal components |
| 4681301016 | SCREEN SHEET | Filter mesh for oil flow |
| 4681301017 | SCREEN SHEET | Secondary filter element |
| 0636100803 | CAP SCREW | High-torque fastener |
| 0750100162 | OIL FEED.HOUSG. | Lubrication supply line |
Frequently Asked Questions
Q: Can the 4681.201.008 housing rear part be repaired if cracked?
A: Welding is not recommended due to thermal distortion risks. Replacement with an OEM genuine part ensures proper sealing and alignment.
Q: What gasket or seal is required with this housing?
A: Use a new OEM gasket (not included) and apply thread-locking compound to all cap screws. The 0636100803: CAP SCREW is recommended for secure fastening.
Q: Does this part fit the ZF WG210 series?
A: Yes, the 4681.201.008 is compatible with WG210 models that share the BP210/BP230 rear housing design. Always cross-reference your transmission serial number.
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ZF 4681.201.008 Part Context
ZF 4681.201.008 is listed in the local BOM as HOUSING REAR PART. Use the exact ZF number when confirming replacement or RFQ details.
Compatibility and Assembly Context
4 BP 210, 4 BP 230
Cross Reference
SP206936
Replacement Scenario
Use this housing rear part listing to confirm the part number, assembly section, and image evidence before procurement.
Specification Snapshot
| ZF Number | 4681.201.008 |
|---|---|
| Name | HOUSING REAR PART |
| Sections | TRANSMISSION HOUSING |
Related PartsZF Hubs
FAQ
Can this part be ordered directly from the number?
Use the ZF number as the primary lookup key, then confirm assembly context and cross-reference evidence before purchase.
Does this page replace fitment confirmation?
No. Final fitment should be confirmed against the machine, transmission family, and available BOM or diagram evidence.
