Overview
The ZF 4681.354.018 OUTPUT GEAR is a critical power-delivery component engineered specifically for the BP230 series transmission. This OEM genuine part transfers rotational force from the planetary gearset to the output shaft, ensuring smooth torque flow to the driveline. Positioned at the rear of the main gearbox assembly, the output gear interfaces directly with the HOUSING REAR PART and the HOUS.FRONT SECT to maintain precise alignment. The SKU 4681.354.018 is manufactured to ZF’s original tolerances, making it a direct replacement for worn units in heavy-duty industrial applications.
Symptoms of Failure
- Transmission gear slipping under load: A worn output gear loses tooth engagement, causing intermittent power loss during acceleration or uphill operation.
- Metallic grinding noise from the rear housing: Damaged gear teeth produce a distinct whining or grinding sound, especially noticeable at low speeds or during deceleration.
- Oil contamination with metal debris: As the gear surface erodes, fine metallic particles circulate through the transmission fluid, often visible during routine oil changes.
- Vibration through the chassis: Uneven wear on the output gear creates rotational imbalance, transmitting noticeable vibration to the vehicle frame at highway speeds.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 4681.354.018 |
| Material | Case-hardened alloy steel (20MnCr5 equivalent) |
| Outside Diameter | 168 mm |
| Tooth Count | 32 |
| Spline Bore Diameter | 45 mm |
| Weight | 3.2 kg |
| OEM Reference | ZF 4681.354.018 (Genuine) |
Compatibility
This output gear is primarily designed for the ZF BP230 series, but it also fits select models in the WG180, WG200, and WG210 families when used with the correct TRANSMISSION HOUSING. The gear’s spline profile matches output shafts found in BP230, BP250, and early BP300 variants. Always verify the tooth count and bore diameter against your existing part before installation. The CYLINDRICAL PIN (0631306074) is required to secure the gear to the shaft during assembly.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4681101005 | TRANSMISSION HOUSING | Encloses and supports all internal gear components |
| 4681201007 | HOUS.FRONT SECT | Front section housing for input shaft bearing support |
| 4681201019 | HOUSING REAR PART | Rear housing that aligns output gear and shaft |
| 0631306074 | CYLINDRICAL PIN | Locks output gear to shaft preventing rotation |
| 0636100801 | CAP SCREW | Secures housing sections together |
| 4681301015 | FIXING PLATE | Retains output gear axial position |
| 4681301016 | SCREEN SHEET | Filters debris from oil flow near output gear |
| 4681301017 | SCREEN SHEET | Secondary oil filtration screen |
| 0636100803 | CAP SCREW | Fastener for rear housing attachment |
| 0750100162 | OIL FEED.HOUSG. | Delivers lubricant to output gear bearings |
Frequently Asked Questions
Q: How do I know if the 4681.354.018 output gear is compatible with my BP230 transmission?
Check the existing gear’s tooth count (32 teeth) and spline bore diameter (45 mm). If these match, the gear is a direct fit. Also verify that your TRANSMISSION HOUSING is from the BP230 series.
Q: What other parts should I replace when installing a new output gear?
It is strongly recommended to replace the CYLINDRICAL PIN (0631306074) and inspect the FIXING PLATE for wear. Also replace the SCREEN SHEET filters to prevent debris from damaging the new gear.
Q: Can a worn output gear cause transmission overheating?
Yes. Excessive gear wear increases friction and generates metal particles that clog oil passages, reducing lubrication flow and causing elevated operating temperatures.
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ZF 4681.354.018 OUTPUT GEAR – Gear RFQ Support
PartsZF helps B2B buyers source ZF 4681.354.018 OUTPUT GEAR with fast RFQ support, expert part-number lookup, documentation review, and export coordination. This gear 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 4681.354.018 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: POWER TAKE OFF
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 | 4681.354.018 |
|---|---|
| Normalized SKU | 4681354018 |
| Part name | OUTPUT GEAR |
| Product category | gear |
| 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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