Injector Fuel Supply Tube 3944688 for Engine 6C8.3 QSB6.7 QSC8.3 B5.9 ISC8.3 ISL9 Hyundai Loader HL770-7 Excavator R360LC-7

3944688 Injector Fuel Supply Tube for cumm-ins 6C8.3 QSB6.7 QSC8.3 B5.9 ISC8.3 ISL9 & Hyundai HL770-7 R360LC-7

Search Keywords

3944688, injector fuel supply tube, high pressure fuel injection pipe, cumm-ins 6C8.3 B5.9 ISL9 fuel tube, Hyundai HL770-7 loader R360LC-7 excavator spare parts

Product Overview

ARKENOU Injector Fuel Supply Tube 3944688 is heavy-duty high-pressure fuel pipe, compatible with cumm-ins 6C8.3, QSB6.7, QSC8.3, B5.9, ISC8.3, ISL9 diesel engines, widely fitted on Hyundai HL770-7 wheel loader and R360LC-7 excavator. It delivers high-pressure fuel from fuel pump to injector to guarantee stable fuel injection and engine power output.

Detailed Specifications

Key Features & Advantages

• ✅ Seamless high tensile steel pipe Withstands extreme working pressure, anti-burst and no fuel leakage.
• ✅ CNC precision bending & machined end fittings Same shape as OEM, direct fit, easy installation.
• ✅ Vibration & fatigue resistant treatment Reliable under continuous engine vibration and temperature variation.
• ✅ 100% pressure tested before shipment Eliminate hidden leakage risk for construction equipment.
• ✅ Perfect replacement for engine overhaul & field maintenance

Application Scope

• cumm-ins 6C8.3 / QSB6.7 / QSC8.3 / B5.9 / ISC8.3 / ISL9 diesel engines
• Hyundai HL770-7 Wheel Loader
• Hyundai R360LC-7 Excavator

Our Company Advantage

We are a professional supplier of full range cumm-ins and construction machinery engine spare parts, including fuel supply tubes, camshaft bushings, piston kits and overhaul kits.

• Ready stock for multiple engine series
• Competitive factory direct price
• Fast shipment for in‑stock goods
• Accept mixed container order for one‑stop spare parts purchasing
• Provide professional technical matching service for your part number inquiry

Packaging & Shipping

1. Fuel tube packed in branded blue plastic protective bag with ARKENOU label
2. Outer export carton for sea shipment
3. Support sea freight, air freight, express delivery for small trial order
4. Full export documents available: Commercial Invoice, Packing List

Contact Us

If you need injector fuel supply tubes or other construction machinery engine spare parts, please send your part list to us. We will offer you our best quotation immediately.