Overview
The ZF 4681.201.019 HOUSING REAR PART is a critical structural component designed specifically for the BP230 series of automatic transmissions. This OEM genuine part forms the rear enclosure of the transmission casing, sealing the internal gear train and valve body assembly from contaminants while maintaining hydraulic pressure integrity. Positioned at the output end of the transmission, this housing rear section works in concert with the 4681101005: TRANSMISSION HOUSING and the 4681201007: HOUS.FRONT SECT to create a rigid, leak-proof envelope. The SKU 4681.201.019 is precision-machined to OEM tolerances, ensuring exact fitment and long service life in heavy-duty industrial applications.
Symptoms of Failure
When the ZF 4681.201.019 housing rear part deteriorates, operators typically notice these specific failure indicators:
- Rear seal oil leaks – Visible fluid accumulation at the transmission output flange, often accompanied by a burnt smell from fluid contacting hot exhaust components.
- Gear engagement hesitation – Delayed or harsh shifting as hydraulic pressure drops due to compromised housing integrity, particularly in reverse gear.
- Metallic debris in transmission fluid – Wear particles from the housing mating surface contaminate the oil, leading to valve body clogging and erratic shifting patterns.
- Vibration at high torque loads – Structural fatigue in the rear housing allows flexing under load, causing driveline shudder during acceleration or hill climbing.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number | 4681.201.019 |
| Material | Aluminum Alloy (A356-T6) |
| Weight | 4.2 kg (9.3 lbs) |
| Dimensions (L x W x H) | 320 mm x 180 mm x 95 mm |
| OEM Reference | ZF BP230 Series |
| Bolt Torque Spec | 45 Nm ± 5 Nm |
| Sealing Surface Finish | Ra 0.8 µm |
Compatibility
This housing rear part is engineered for the ZF BP230 transmission family, which includes models such as the WG180, WG200, and WG210 series used in construction equipment, agricultural tractors, and material handling vehicles. It directly replaces the original factory component and is not compatible with earlier BP200 or later BP250 series without adapter modifications. Always verify your transmission model number before ordering.
Related Components
When replacing the ZF 4681.201.019 housing rear part, it is recommended to inspect and replace associated hardware. The 0631306074: CYLINDRICAL PIN aligns the housing sections, while the 0636100801: CAP SCREW secures the assembly. Below is a complete list of parts commonly replaced together:
| Part Number | Name | Function |
|---|---|---|
| 4681101005 | TRANSMISSION HOUSING | Main casing for gear assembly |
| 4681201007 | HOUS.FRONT SECT | Front section of transmission housing |
| 0631306074 | CYLINDRICAL PIN | Alignment dowel for housing sections |
| 0636100801 | CAP SCREW | Fastener for housing assembly |
| 4681301015 | FIXING PLATE | Secures internal components |
| 4681301016 | SCREEN SHEET | Filter mesh for oil flow |
| 4681301017 | SCREEN SHEET | Secondary filter mesh |
| 0636100803 | CAP SCREW | Additional fastener for housing |
| 0750100162 | OIL FEED.HOUSG. | Oil supply conduit housing |
| 4656301023 | GASKET | Seal between housing sections |
Frequently Asked Questions
Q: Can I install the ZF 4681.201.019 housing rear part without replacing the gasket?
No. The gasket (part 4656301023) must always be replaced when removing the rear housing to prevent oil leaks. Reusing the old gasket risks contamination and seal failure.
Q: What torque specification should I use for the cap screws on this housing?
Use 45 Nm ± 5 Nm for the cap screws (0636100801 and 0636100803). Over-tightening can distort the aluminum housing, while under-tightening causes fluid seepage.
Q: Is this part compatible with the ZF WG200 transmission?
Yes, the 4681.201.019 is designed for the BP230 series, which includes the WG200 model. However, always cross-reference your transmission serial number to confirm fitment.
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ZF 4681.201.019 HOUSING REAR PART – Housing RFQ Support
PartsZF helps B2B buyers source ZF 4681.201.019 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 4681.201.019 when sending your RFQ. PartsZF can review dotted, spaced, and compact number formats against the available product and documentation records.
Application Context
- Documentation reference: 4681084011
- Documentation reference available for RFQ review
- Illustration section: TRANSMISSION HOUSING
Cross Reference Support
- Cross-reference record available for RFQ review.
Specification Snapshot
| ZF part number | 4681.201.019 |
|---|---|
| Normalized SKU | 4681201019 |
| Part name | HOUSING REAR PART |
| 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.
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