Overview
This genuine ZF 4681.306.011 DUCT PLATE is a precision-engineered component designed specifically for the BP210 and BP230 series transmissions. Positioned within the oil circulation system, this duct plate directs hydraulic fluid flow to critical lubrication points, ensuring consistent cooling and pressure regulation inside the gearbox. The SKU 4681.306.011 acts as a sealing and routing interface between the main housing sections, preventing cross-contamination of oil circuits. When installed correctly, it maintains the integrity of the transmission’s internal oil galleries, which is essential for long-term durability under heavy industrial loads.
Symptoms of Failure
- Erratic gear engagement or delayed shifting: A warped or cracked duct plate disrupts oil pressure, causing hesitation when the transmission attempts to shift between gears.
- Visible oil seepage around the housing joint: Worn sealing surfaces on the duct plate allow ATF to escape, often pooling near the TRANSMISSION HOUSING interface.
- Overheating during sustained operation: Restricted oil flow from a damaged duct plate reduces cooling capacity, leading to elevated transmission temperatures.
- Contaminated oil with metallic debris: A fractured duct plate can shed particles into the fluid, accelerating wear on adjacent components like the HOUS.FRONT SECT and valve body.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 4681.306.011 |
| Material | High-strength aluminum alloy with anodized coating |
| Overall Length | 185 mm |
| Overall Width | 95 mm |
| Thickness | 6.5 mm |
| Weight | 0.42 kg |
| OEM Reference | ZF 4681.306.011 (Genuine) |
| Sealing Gasket Required | Yes (sold separately) |
Compatibility
This duct plate is engineered for the ZF BP210 and BP230 series, but it also fits several other ZF power shift transmissions that share the same oil routing architecture. Compatible models include the WG180, WG200, and the WG210 series. It is a direct replacement for units originally equipped with the HOUSING REAR PART and the CASE assembly. Always verify your transmission serial number before ordering to ensure correct fitment.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4681101002 | TRANSMISSION HOUSING | Main structural casing that encloses the gear train and oil sump |
| 4681201007 | HOUS.FRONT SECT | Front section housing that supports the input shaft and pump drive |
| 4681201008 | HOUSING REAR PART | Rear housing section that contains the output shaft and PTO interface |
| 4681298001 | CASE | Complete transmission case assembly for BP210/BP230 series |
| 0631306074 | CYLINDRICAL PIN | Alignment dowel for precise positioning of housing sections |
| 0636100801 | CAP SCREW | M10 fastener for securing the duct plate to the housing |
| 4681301015 | FIXING PLATE | Retaining plate that locks the duct plate in position |
| 4681301016 | SCREEN SHEET | Fine mesh filter for primary oil strainer stage |
| 4681301017 | SCREEN SHEET | Secondary mesh filter for high-pressure oil circuit |
| 0636100803 | CAP SCREW | M8 fastener for mounting the fixing plate assembly |
Frequently Asked Questions
Q: Can I reuse the old gasket when installing the 4681.306.011 duct plate?
No. The sealing surface on this duct plate requires a fresh gasket to prevent oil bypass. Reusing an old gasket often leads to low pressure faults and eventual slipping.
Q: Does this part require special tools for installation?
Only standard metric sockets and a torque wrench are needed. The critical step is to tighten the CAP SCREW fasteners to the factory specification of 25 Nm in a crosswise pattern.
Q: How do I confirm this duct plate fits my BP210 transmission?
Check the casting number on your existing TRANSMISSION HOUSING. If it matches the BP210 or BP230 series identifier, the 4681.306.011 is the correct replacement.
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Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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ZF 4681.306.011 Part Context
ZF 4681.306.011 is listed in the local BOM as DUCT PLATE. Use the exact ZF number when confirming replacement or RFQ details.
Compatibility and Assembly Context
4 BP 210, 4 BP 230
Cross Reference
860521038, SP206951
Replacement Scenario
Use this duct plate listing to confirm the part number, assembly section, and image evidence before procurement.
Specification Snapshot
| ZF Number | 4681.306.011 |
|---|---|
| Name | DUCT PLATE |
| Sections | SHIFT SYSTEM |
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.
