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Fit Models: HITACHI EX300-2 / EX300-3
Core Platform: Kawasaki M2X210
Condition: Brand New / Replacement Reman Available
1.Fitment & Cross-Reference
Machine Models: Hitachi EX300-2, EX300-3 (Swing Assembly)
OEM Assembly Number: 4294479
Core Platform: Kawasaki M2X210 Swing Motor
Interchange Part Numbers (Reference):
Hitachi: 4294479 (others can be verified upon request)
Kawasaki: M2X210 series sub-models (M2X210-xx, suffix varies by machine)
2.Technical Specifications (Reference)
| Item | Typical Data |
| Type | Axial piston swing motor with parking brake |
| Displacement | ≈210 cm³/rev (M2X210 characteristic) |
| Control | Hydraulic pilot, bi-directional rotation |
| Pressure | Rated / max working pressure – see nameplate |
| Speed | Rated speed – see nameplate |
| Output Shaft | Spline/Flange (OEM match) |
| Brake | Multi-disc wet brake (spring applied, hydraulically released) |
| Valve Block | Relief, makeup, counterbalance, cushion valves (depending on version) |
| Ports | P, T, A, B; brake port (Brake) |
| Hydraulic Oil | ISO VG46 anti-wear hydraulic oil or OEM spec |
| Installation | Direct fit with EX300-2/3 bolt holes, locating shoulder, and port orientation |
3.Packing
4.Model We Can Supply
| Various models of excavator swing motor | |
| Cooperative Brands | Available Model |
| HYUNDAI | R55 R60 R80 R130LC-3-5 R200 R200-5 R210 R215-7/9 R220-5 R225LC-7/9 R290 R290 R290LC-7 R300LC R305LC R330LC R375 R360LC-7 R450LC |
| ZXAIS/HITACAI | EX35 EX40 EX55 EX60 EX60-3 ZX200 ZX210 ZX250 ZX290 ZX330 ZX470 EX1000 EX1200 |
| VOLVO | EC55 EC60 EC140BP EW145BP EW160BB EC210 EC240 EC290 EC360LC EC380.EC460 EC480 EC700 |
| CAT | 305.5 306 307 308 312 315 320 323 324 325 326 330 336 345 349 365 374 CAT390 |
| KOMATSU | PC45 PC50 PC55 PC56 PC60-5-6-7 PC60-8 PC70-8 PC78 PC100-3 PC120-6 PC130-7 PC200-7/8 PC220 PC270 PC240 PC300-6/7 PC360 PC400-6/7/8,PC450-6 PC600-6 PC650-3 PC650 PC800 PC1000 PC1200 PC1250 |
| KOBELCO | SK35 SK50 SK60 SK75 SK100 SK120 SK200-1-2-3-4-5-6 SK230 SK250 SK260 SK280 SK300 SK330 SK330-6 SK350 SK400 SK450 SK480 |
| DOOSAN/DAEWOO | DH35 DH55 DH60 DH55 DH60 DH80 DH80-7 DH80GOLD DH150 DH200 DH220-3-5 DH280-5 DX60-DX200-DX225 DX260 DH290 DH360 DH420 DH500 |
| SUMITOMO | SH55 SH60 SH75 SH50 SH100 SH120 SH200 SH200-3-5 SH220-2-3 SH280 SH300 SH350 SH400 SH450 |
| KATO | HD820 HD1023 HD1430 HD2045 HD700 |
| SANY | SY55 SY60 SY65 SY70 SY75 SY85 SY95 SY115 SY135 SY155 SY195 SY200 SY205 SY215 SY220 SY225 SY235 SY245 SY285 SY305 SY335 SY365 SY375 SY395 SY415 SY485 |
| LIUGONG | CLG904 CLG9055 CLG906 CLG907 CLG9075 CLG908 CLG915 CLG150 CLG920 CLG921 CLG922 CLG225 CLG924 CLG925 CLG933 CLG936 CLG939 CLG942 |
| CLG948 CLG950 CLG952 CLG200 CLG205 CLG220 CLG225 | |
| KUBOTA | KX135 KX185 KX155 KX161 KX163 KX165 KX183 |
| IHI | IHI35 IHI50 IHI60 IHI55 IHI80 IHI100 |
| XCMG | XE55 XE60 XE65 XE75 XE80 XE85 XE135 XE150 XE155 XE200 XE205 XE215 XE225 XE245 XE270 XE305 XE335 XE370 XE380 XE400 XE470 XE490 XE700 |
| YANMAR | ViO35 ViO55 ViO75 |
| CASE | CX50 CX55 CX58 CX75 CX210 CX240 CX290 CX330 |
| YUCHAI | YC35 YC50 YC55 YC60 YC65 YC85 YC135 YC230 |
| JCB | JS130 JS210 JS220 JS290 JS330 |
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