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Quality 4928260 Diesel Fuel Injector for QSX15 ISX15 Engine R800LC-9 Excavator factory
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Quality 4928260 Diesel Fuel Injector for QSX15 ISX15 Engine R800LC-9 Excavator factory
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4928260 Diesel Fuel Injector for QSX15 ISX15 Engine R800LC-9 Excavator

Brand Name: JIAJUE
Model Number: QSX15 ISX15 R800LC-9
Place of Origin: CHINA
Minimum Order Quantity: 1
Price: Please send mail or WhatsApp
Supply Ability: 1000PCS/MONTH

Product Details


Part Number: 4928260 MOQ: 1
Highlight

QSX15 ISX15 diesel fuel injector

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4928260 injector for R800LC-9 excavator

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diesel fuel injector for QSX15 engine

Product Description

Product Overview

The 4928260 Diesel Fuel Injector is engineered for QSX15 and ISX15 engines and the R800LC-9 excavator. Manufactured under the JIAJUE brand, this HEUI fuel injector delivers precise fuel atomization and reliable performance for demanding industrial and construction applications. Each unit is stocked in rich supply and dispatched within 24–48 hours.

Product Specifications
Product NameFuel Injector
Part Number4928260
Brand NameJIAJUE
ModelQSX15 ISX15 R800LC-9
AvailabilityRich Stock
Approximate Weight3KG
Size (per unit)20cm x 5cm x 8cm
Delivery MethodsDHL, FedEx, TNT, UPS
Warranty3 months
ShipmentDispatched within 24-48 hours
Product Photos & Testing
4928260 diesel fuel injector for QSX15 ISX15 engine — product photo and testing view
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Frequently Asked Questions

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 installation instructions.

What precautions should I take before installing the fuel injector?

The installation environment must be dust-free. Lubricate the O-ring with clean machine oil before installation to prevent oil leakage, and ensure the O-ring is installed correctly.

Why is my engine still unusable after replacing the fuel injector?

This is commonly due to air trapped in the high-pressure oil rail. Cycle the engine in short bursts (no more than 30 seconds) to purge air. It may take several attempts to stabilize pressure.

Is my device compatible with this part number of fuel injectors?

If unsure about compatibility, please provide your Engine Serial Number (ESN) for free verification.

How do I determine if my fuel injectors need replacing?

  • Cylinder Cut-out Test: Using diagnostic software (ET), shut off cylinders one by one and observe engine speed fluctuations.
  • Fuel Rail Pressure Test: Check for internal leaks preventing system pressure buildup.
  • Back-leakage Test: Excessive back-leakage indicates severe wear of the internal control valve assembly.
  • Visual Inspection: Inspect fuel injector nozzles for carbon buildup, blockage, or corrosion.

How long will it take to receive my package after payment?

Delivery time depends on your country, region, and customs clearance. Contact us with your address and postal code for shipping costs and estimated delivery time.

Step-by-Step Installation Guide

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 no carbon debris, old O-rings, or fuel/oil residue remains at the bottom of the seat. Inspect the injector sleeve for pitting or erosion.
  2. Lubrication: Apply clean engine oil to the three O-rings and backup rings.
  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). 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 for precise fuel delivery synchronization.
Warning: Never use grease. Only use clean engine oil to ensure seals slide in without tearing.
Troubleshooting Guide
IssueRoot CauseSolution
Black SmokePoor spray atomization or stuck needle valve causing drippingInspect the air filter
Hard StartInternal leakage in injector leading to insufficient starting oil pressureInspect injector O-rings and internal seals
Engine MisfireFaulty solenoid valve coil or worn internal valve componentsInspect wiring harness connections and replace damaged injectors
Company Profile
Jiajue Machinery company overview and manufacturing facilities
Exhibition
Factory Environment
Jiajue Machinery factory interior showing advanced manufacturing equipment
Packaging & Shipping

Product Highlights

Product OverviewThe 4928260 Diesel Fuel Injector is engineered for QSX15 and ISX15 engines and the R800LC-9 excavator. Manufactured under the JIAJUE brand, this HEUI fuel injector delivers precise fuel atomization and reliable performance for demanding industrial and construction applications. Each ...

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