1278216 Injector for 3116 3114 Engine
Product Details
| Part Number: | 1278216 | MOQ: | 1 |
|---|---|---|---|
| Highlight |
3116 engine fuel injector,3114 diesel injector,1278216 injector replacement |
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Product Description
The 1278216 Fuel Injector is a precision-engineered replacement component designed for 3116 and 3114 diesel engines. Manufactured under the JIAJUE brand, this injector delivers reliable fuel atomization and consistent performance for demanding industrial and heavy-equipment applications. Each unit is stocked in quantity and backed by a 3-month warranty.
| Product Name | Fuel Injector |
|---|---|
| Part Number | 1278216 |
| Brand Name | JIAJUE |
| Model | 3116 / 3114 |
| Availability | Rich Stock |
| Warranty | 3 Months |
| Shipment | Dispatched within 24–48 hours |
Q1: How do I install my fuel injector after purchasing it?
Please refer to the "Step-by-Step Installation Guide" on our product details page, which contains detailed instructions for installing the injector correctly.
Q2: What precautions should I take before installing the BEBE4C0000120 20440388 fuel injector?
The installation environment must be dust-free. Lubricate the O-ring with clean machine oil before installation to prevent oil leakage caused by cutting the O-ring during installation, and always verify that the O-ring is installed correctly.
Q3: Why is my engine still unusable after replacing the fuel injector?
This is common and is usually due to air trapped in the high-pressure oil rail. Cycle the engine in short bursts (no more than 30 seconds) to purge the air. It may take several attempts to stabilize the pressure.
Q4: Is my device compatible with this part number of fuel injectors?
If you are unsure whether this part fits your machine, please send us your Engine Serial Number (ESN) for free verification.
Q5: How do I determine if my fuel injectors need replacing?
- Cylinder Cut-out Test: Using diagnostic software (ET), cylinders are shut off one by one and engine speed fluctuations are observed to locate the faulty cylinder.
- Fuel Rail Pressure Test: Check for internal leaks that prevent the system from building up the critical pressure required for starting.
- Back-leakage Test: Excessive back-leakage usually indicates severe wear of the internal control valve assembly.
- Visual Inspection: Inspect the fuel injector nozzles for carbon buildup, blockage, or corrosion.
Q6: How long will it take to receive my package after I make the payment?
Delivery time depends on your country and region, as well as customs clearance time. Please contact us with your address and postal code so we can check shipping costs and estimate delivery time for you.
Pro-Tip: HEUI (Hydraulic Electronic Unit Injection) systems are extremely sensitive to contamination. A single speck of dust can cause premature failure.
1. Preparation
Clean the injector bores thoroughly. Ensure there is no carbon debris, old O-rings, or fuel/oil residue at the bottom of the seat. Inspect the injector sleeve for any signs of pitting or erosion.
2. Lubrication
Apply clean engine oil to the three O-rings and the backup rings. Warning: Never use grease. Only use clean engine oil to ensure the seals slide in without tearing.
3. Seating the Injector
Push the injector down firmly by hand until you feel it "seat." Install the hold-down clamp and bolt.
4. Torque Specifications
Tighten the bolt to 30 N⋅m ± 7 N⋅m (22 lb-ft). Note: Over-tightening can crack the injector body; under-tightening causes combustion gas leakage.
5. Trim Code Programming
Locate the 6-digit alphanumeric code on the top of the injector solenoid. Use ET (Electronic Technician) software to program this code into the ECM to ensure precise fuel delivery synchronization.
| Issue | Root Cause | Solution |
|---|---|---|
| Black Smoke | Poor spray atomization or a stuck needle valve can cause dripping. | Inspect the air filter. |
| Hard Start | Internal leakage in the injector can lead to insufficient starting oil pressure. | Inspect the injector O-rings and internal seals. |
| Engine Misfire | A faulty solenoid valve coil or worn internal valve components can cause this. | Inspect the wiring harness connections and replace any damaged injectors. |
Product Highlights
Product Overview The 1278216 Fuel Injector is a precision-engineered replacement component designed for 3116 and 3114 diesel engines. Manufactured under the JIAJUE brand, this injector delivers reliable fuel atomization and consistent performance for demanding industrial and heavy-equipment ...
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