Product Details
Place of Origin: MADE IN CHINA
Brand Name: KBZE
Certification: ISO9001
Model Number: 6751-71-5421
Payment & Shipping Terms
Minimum Order Quantity: Acceptable Trial Order
Price: DIRECTLY FACTORY PRICE
Packaging Details: PP Bag & Carton Box
Delivery Time: 3-5DAYS AFTER RECEIVED PAYMENT(WORKING DAYS)
Payment Terms: T/T, Western Union, MoneyGram
Supply Ability: 50000 SET/WEEK
MATERIAL: |
TUBE |
COLOR: |
BLACK |
QUALITY: |
OEM |
CONDITION: |
100% NEW |
FLEXIBILITY: |
FLEXIBLE AND EASY INSTALL |
APPLICATION: |
EXCAVATOR |
DURABILITY: |
LONG-LASTING AND RELIABLE |
COMPATIBILITY: |
KOMATSU S4D107E |
MATERIAL: |
TUBE |
COLOR: |
BLACK |
QUALITY: |
OEM |
CONDITION: |
100% NEW |
FLEXIBILITY: |
FLEXIBLE AND EASY INSTALL |
APPLICATION: |
EXCAVATOR |
DURABILITY: |
LONG-LASTING AND RELIABLE |
COMPATIBILITY: |
KOMATSU S4D107E |
PRODUCT DESCRIPTION
| PRODUCT NAME: |
KOMATSU S4D107E 6751-71-5421 FUEL DRAIN TUBE FITS FOR PC200-8 PC160-8 KBZE AFTERMARKET BRAND |
| PART NO: | 6751-71-5421 |
| BRAND NAME: | KBZE INJECTOR LEAK OFF PIPE |
| APPLICABLE MACHINE: |
KOMATSU S4D107E DIESEL ENGINE |
| SIZE: | STANDARD SIZE |
| MOQ: | ONE PCS |
| PLACE OF ORIGIN: | MADE IN CHINA |
| CONDITION: | 100% NEW GENUINE |
| CUSTOMIZED: | OEM & ODM |
| DELIVERY METHOD: | AIR, SEA, FEDEX, DHL, UPS, EMS |
| PORT | CHINA PORT |
| SUITABLE MODEL: |
KOMATSU EXCAVATOR |
WE CAN SUPPLY OTHER FUEL PIPE
| 65.05701-5530 | 65.05701-5530 | 42014-00226 | 65.05701-5636A |
| ME015431 | ME444147 | ME221415 | ME224460 |
| ME22598 | 8-98030531-0 | 8-94364888-1 | 6271-71-5210 |
| 6754-71-5130 | 4933417 | 3942597 | 6754-71-5130 |
| 6754-71-5170 | 6745-71-4150 | 6156-71-4113 | 6156-71-4122 |
| 6751-71-4120 | 6251-71-4110 | 6261-71-4112 | 6218-71-4110 |
| 6245-71-5181 | 6219-71-5141 | 6219-71-5121 | 296-4740 |
| 294-1798 | 396-2610 | 396-2611 | 3525A221 |
| 371-2256 | 3932034 | 3932035 | 8-97312509-3 |
| 8-97603307-0 | 1-5416812-1 | 1-15416811-1 | 8-97603102-0 |
The injector leak-off pipe, also known as a fuel return line or spill pipe, is critical in diesel engines, especially in heavy machinery like excavators. Here are the main advantages of an injector leak-off pipe:
### 1. **Prevents Excess Pressure in Injectors**
- The injector leak-off pipe channels excess fuel back to the tank, preventing fuel pressure build-up within the injectors, which helps maintain stable engine performance and protects components from damage.
### 2. **Improves Engine Efficiency**
- By efficiently handling excess fuel, the leak-off pipe ensures that the injectors only use the required amount of fuel, leading to optimized fuel consumption and better overall engine efficiency.
### 3. **Ensures Smooth Engine Operation**
- It helps eliminate air bubbles from the fuel system. Air in the injectors can lead to engine misfires or rough idling, so the leak-off pipe contributes to smooth engine running.
### 4. **Prevents Fuel Waste**
- The pipe directs unused fuel back to the fuel tank instead of allowing it to leak out, reducing fuel waste and improving cost-efficiency.
### 5. **Enhances Injector Lifespan**
- By preventing excess pressure and ensuring consistent fuel flow, the leak-off pipe helps protect injectors from wear and tear, extending their operational life.
### 6. **Maintains Fuel Temperature Stability**
- The continuous return of excess fuel to the tank helps regulate the temperature of the fuel, preventing overheating in the fuel lines, which can affect injector performance.
In heavy-duty applications like excavators, the injector leak-off pipe is essential for maintaining fuel system health, contributing to smoother engine operation, reduced maintenance needs, and improved overall performance.
| Pos. | Part No | Qty | Parts name | Comments |
| 1 | 6751-21-7160 | [1] | Plate Komatsu China | |
| ["SN: 26508146-UP"] | ||||
| 2 | 6751-71-5130 | [1] | Bolt Komatsu China | |
| ["SN: 26508146-UP"] | ||||
| 3 | 6733-71-5840 | [2] | Bolt Komatsu China | |
| ["SN: 26508146-UP"] | ||||
| 4 | 6754-71-5450 | [1] | Bracket Komatsu China | |
| ["SN: 26508146-UP"] | ||||
| 5 | 04434-51708 | [2] | Clip Komatsu China | |
| ["SN: 26508146-UP"] | ||||
| 6 | 07095-40211 | [2] | Cushion Komatsu | 0.02 kg. |
| ["SN: 26572022-UP"] | ||||
| 6 | 07095-20211 | [2] | Cushion Komatsu | 0.01 kg. |
| ["SN: 26508146-26572021", "SCC: A2"] | ||||
| 7 | 154-61-16570 | [2] | Washer Komatsu | 0.006 kg. |
| ["SN: 26508146-UP"] | ||||
| 8 | 01435-60820 | [2] | Bolt Komatsu | 0.014 kg. |
| ["SN: 26580909-UP"] analogs:["6732713220"] | ||||
| 8 | 6732-71-3220 | [2] | Bolt Komatsu | 0.014 kg. |
| ["SN: 26508146-26580908"] analogs:["0143560820"] | ||||
| 9 | 01435-60816 | [1] | Bolt Komatsu | 0.01 kg. |
| ["SN: 26589052-UP"] analogs:["6732213120", "6736215310"] | ||||
| 9 | 6732-21-3120 | [1] | Bolt Komatsu | 0.01 kg. |
| ["SN: 26508146-26589051"] analogs:["6736215310", "0143560816"] | ||||
| 10 | 6732-61-3110 | [1] | Bolt Komatsu | 0.022 kg. |
| ["SN: 26508146-UP"] | ||||
| 11 | 6732-21-6630 | [1] | Screw Komatsu | 0.02 kg. |
| ["SN: 26508146-UP"] | ||||
| 12 | 6751-71-5421 | [1] | Tube Komatsu China | |
| ["SN: 26548224-UP"] | ||||
| 12 | 6751-71-5420 | [1] | Tube Komatsu China | |
| ["SN: 26508146-26548223"] | ||||
| 13 | 6754-71-5430 | [1] | Valve, Check Komatsu | 0.04 kg. |
| ["SN: 26508146-UP"] | ||||
| 14 | 6731-74-5910 | [1] | Washer, Seal Komatsu OEM | 0.01 kg. |
| ["SN: 26508146-UP", "KIT-FLAG: S"] | ||||
| 15 | 6745-71-1130 | [1] | Seal, Washer Komatsu | 0.001 kg. |
| ["SN: 26508146-UP", "KIT-FLAG: S"] | ||||
| 16 | 6751-71-5110 | [1] | Tube Komatsu | 0.332 kg. |
| ["SN: 26508146-UP"] | ||||
| 18 | 6751-71-5120 | [4] | Clamp Komatsu China | |
| ["SN: 26508146-UP"] | ||||
| 19 | 6751-71-5411 | [1] | Connector Komatsu China | |
| ["SN: 26524166-UP"] | ||||
| 19 | 6751-71-5410 | [1] | Connector Komatsu China | |
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