| Category |
KOMATSU Spare Parts |
| Name |
Support, Idler Pulley |
| Parts No |
6743-61-4411 6743-61-3441 6743-61-3440 6742-01-5231 |
| Machine Number |
PC300 PC300HD WA380 WA430 |
| Lead time |
1-3 DAYS |
| Quality |
Brand new, OEM quality |
| MOQ |
1 PCS |
| Means of transport |
By sea/air, DHL FEDEX UPS TNT |
| Packing |
As request or standard packing |
- Key functions & working principle
| Working Principle |
1. Mounted to the engine block via high-tensile bolts, providing a fixed base for the idler pulley |
| 2. The idler pulley’s bearing is press-fitted into the support’s precision bore, positioning the pulley in the drive belt path |
| 3. Maintains consistent belt tension by stabilizing the pulley, preventing slippage and ensuring efficient power transmission to accessories (alternator, water pump) |
| 4. Absorbs engine vibration and dynamic loads, protecting the pulley and belt from premature wear |
| Core Functions |
1. Secure idler pulley mounting: Prevents pulley displacement or misalignment during equipment operation |
| 2. Belt tension maintenance: Ensures drive belt stays taut, avoiding slippage and power loss |
| 3. Vibration damping: Reduces stress on the pulley bearing and belt, extending their service life |
| 4. Structural support: Protects the engine’s accessory drive system from damage due to impact or harsh conditions |
EXCAVATORS PC300 PC300HD
WHEEL LOADERS WA380 WA430 Komatsu
- More other support applied to KOMATSU heavey machine
| 395-62-15970 SUPPORT |
| WH609, WH713 |
| |
| 426-23-11312 SUPPORT |
| WD600, WF600T |
| |
| 395-62-13990 SUPPORT |
| WH609, WH713 |
| |
| 22E-43-11610 SUPPORT |
| PC110R, PC75R, PC95R, PW110R, PW75R, PW95R |
| |
| 42N-43-12250 SUPPORT |
| WB93R, WB93S, WB97R, WB97S |
| |
| 37A-846-1570 SUPPORT |
| SK714 |
| |
| 42N-01-11642 SUPPORT, R.H. |
| WB91R, WB93R, WB97R |
| |
| 416-877-1350 SUPPORT |
| 512, 518, WA100, WA100SS, WA100SSS, WA120, WA150, WA180, WR11, WR11SS |
| |
| 22L-09-R2A20 SUPPORT |
| PC14R, PC16R, PC18MR |
| |
| 42N-56-11510 SUPPORT |
| WB93R, WB93S, WB97R, WB97S |
| |
| 419-06-33116 SUPPORT |
| FRONT, WA320, WA320L, WA320PT |
| |
| 21D-54-11790 SUPPORT |
| PC95R, PW95R |
| Pos. |
Part No |
Qty |
Parts name |
Comments |
| 1 |
6743-61-3430 |
[1] |
BOLT (M10-1.50x60) Komatsu |
0.05 kg. |
| |
|
|
|
|
| 2 |
6743-61-3610 |
[2] |
BOLT (M10-1.50x50) Komatsu |
0.04 kg. |
| |
|
|
|
|
| 3 |
6743-62-3710 |
[1] |
BELT, V-RIBBED Komatsu China |
0.26 kg. |
| |
|
|
analogs:["6732813330", "1257765H1"] |
|
| 4 |
6743-61-3440 |
[1] |
PULLEY, IDLER Komatsu OEM |
0.7 kg. |
| |
|
|
analogs:["6743613441", "6742015231"] |
|
| 5 |
6742-01-5123 |
[1] |
SHAFT, IDLER Komatsu |
0.15 kg. |
| |
|
|
|
|
| 6 |
6743-61-4411 |
[1] |
SUPPORT, IDLER PULLEY Komatsu |
0.45 kg. |
| |
|
|
|
|
| 7 |
6742-01-4560 |
[1] |
SHIELD, DUST Komatsu |
0.01 kg. |
- We could supply the following spare parts
1 Hydraulic parts: hydraulic pump, main valve, hydraulic cylinder, final drive, travel motor, swing machinery, swing motor etc.
2 Engine parts: engine ass’y, piston, piston ring, cylinder block, cylinder head, crankshaft, turbocharger, fuel injection pump, starting motor and alternator etc.
3 Undercarriage part: Track roller, Carrier roller, Track Link, Track shoe, Sprocket, Idler and Idler cushion etc.
4 Cab parts: operator’s cab, wiring harness, monitor, controller, seat, door etc.
5 Cooling parts: Radiator, air conditioner, compressor, after cooler etc.
6 Other parts: Service kit, swing circle, engine hood, swing joint, fuel tank, filter, boom, arm, bucket etc.
Packing Details :
inner packing : plastic film for wrapping
external packing : wooden
Shipping :
within 3 days after received the payment , by air or by express or by sea on the basis of the
quantity and emergency circumstances.
1. By Couriers: DHL, UPS, FEDEX, TNT are the main courier companies we are cooperated,
2. By Air: Delivery from the Guangzhou air port to customer's destination city air port.
3. By Sea: Delivery from the Huangpu port .
Por favor verifique seu email!
