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Wheel Loader ZF 4BP230 powershift transmission K3 Clutch Shaft Assembly 4681 373 002
Belongs to the K3 clutch shaft assembly. Within the internal numbering sequence for the ZF 4BP230, the 4681 373 xxx series specifically designates the K3 clutch assembly (with 4681 373 001 representing the K3 idler gear and 4681 373 002 representing the corresponding K3 clutch shaft). This is a high-torque, countershaft-type powershift transmission (featuring 4 forward and 3 reverse gears) designed for medium-to-heavy-duty wheeled loaders in the 6-ton class and above.
• XCMG: Large wheel loaders such as the XC968E (equipped with assemblies from Liuzhou ZF/LZZF).
• LiuGong: 6-ton class wheel loaders such as the CLG862H.
• Foton Lovol: FL968H wheel loader.
• Other construction machinery: Motor graders or specialized heavy-duty towing equipment, some of which are equipped with the 4BP230 model (assembly numbers such as 4681.084.xxx).
K3 Clutch Assembly Core Components (Shaft, Gear & Friction Pack)
| Item No. | Part Name | ZF OEM Part No. | Assembly Group & Replacement Notes |
|---|---|---|---|
| 1 | K3 Shaft | 4681 373 002 | Core replacement part; inspect rotary sealing ring grooves for step wear and verify oil passages are clear |
| 2 | K3 Idler Gear | 4681 373 001 | Gear meshing directly with K3 shaft (adjacent reference: K4 Idler Gear 4681 374 002) |
| 3 | Clutch Piston | 4681 275 012 / 4681 275 015 | Installed inside the clutch drum; inspect piston seal grooves for scoring or deformation |
| 4 | Compression Spring | 0732 042 711 / 0732 042 654 | Clutch piston return spring; check tension and replace fatigued springs during overhaul |
| 5 | Outer Clutch Disc (Friction) | 0501 212 371 / 0501 212 373 | Sintered bronze or paper-based friction discs; must replace as a complete set if blackened, burnt, or peeling |
| 6 | Inner Clutch Disk (Steel) | 0501 316 590 / 0501 316 591 | Steel mating plates (available in selective thicknesses 590/591/592 to adjust clutch pack clearance) |
| 7 | End Shim | 0501 340 818 / 0501 340 819 | Installed at the end of the clutch pack to precisely adjust axial clearance (alternative ref: 4657 371 045) |
Mandatory Replacement Seals, Thrust Washers & Snap Rings (One-Time Consumables)
| Category / Component | ZF OEM Part No. / Spec | Specifications & Maintenance Notes |
|---|---|---|
| Overhaul Sealing Kit | 4681 010 001 | Includes housing paper gaskets, O-rings, and shaft end seals (excludes clutch friction set) |
| Piston Guide Ring / Rotary Sealing Ring | e.g., 4642 308 083 | Mandatory replacement upon disassembly; prevents K3 hydraulic pressure drop and clutch slippage |
| Snap Ring (Retaining Ring) | e.g., 0730 513 697 | Mandatory replacement upon disassembly; locks bearings and clutch carrier components on the shaft |
| Axial Thrust Washer / Support Shim | e.g., 0730 105 318 / 0730 011 028 | Inspect for wear or scoring; replace during major overhaul to maintain proper axial end-play |
| Bearings (Tapered Roller & Needle Cage) | Match to Transmission Spec | Inspect both shaft end tapered roller bearings and K3 idler gear needle roller cage; replace if pitted |
| Pressure Oil Filter Element | ZF / OEM Approved Filter | Mandatory replacement after overhaul to prevent metal debris from clogging the electro-hydraulic control valve |
| Transmission Oil | ZF TE-ML 03 Compliant | Heavy-duty off-highway transmission fluid; refill to specified level after reassembly |
DETAILS
| DESCRIPTION | K3 Clutch Shaft Assembly | PART NUMBER | 4681 373 002 |
| WEIGHT | 10kg | VOLUME |
45 × 15 × 15 cm |
| TRUCK MOLDE | ZF | QUALITY | Copy,High Copy, OEM,Original |
| MOQ | 1 | WARRANTY | 1 year |
| PAYMENT | TT/WESTEN UNION | SHIPMENT | by air/sea/railway |
| BRAND | SINOSACHS | PLACE OF ORIGIN | JINAN CITY,CHINA |
| STOCK | IN STOCK | APPLICABLE SITE | GEARBOX |
| PACKAGE | Carton/Woodenbox | PORT OF LANDING | Qingdao Port,China |
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