CAT 503-7393 Caterpillar C9.3B Fuel Tube Assembly | Engine Fuel System Parts
CAT 503-7393 Caterpillar C9.3B Fuel Tube Assembly | Engine Fuel System Parts
CAT 503-7393 Caterpillar C9.3B Fuel Tube Assembly
OEM-quality fuel tube assembly for Caterpillar C9.3B diesel engines. Conveys high-pressure or low-pressure fuel between the fuel pump, fuel rail, injectors, and other fuel system components, maintaining a leak-free sealed fuel circuit under continuous operating pressures and temperatures. Manufactured to OEM specifications for correct tube diameter, wall thickness, end fitting configuration, and routing length, ensuring reliable fuel delivery and long service life under continuous heavy-duty operating conditions. Essential for fuel system overhaul and fuel line replacement. Ideal for global parts retailers, repair service providers, and heavy-duty diesel engine workshops.
Part Specifications
- Part Number: 503-7393
- Brand: Caterpillar (CAT)
- Component: Fuel Tube Assembly (TUBE AS-FUEL)
- Condition: New / OEM Replacement
- Country of Origin: China
- HS Code: 8413.91
- Application: Industrial / Construction / Power Generation
Compatible Engine Models
- Caterpillar C9.3B
- Please confirm compatibility with your engine serial number before ordering.
Cross Reference Numbers
503-7393 | 5037393 | CAT5037393
Why Choose Us?
- Global B2B wholesale supply
- Bulk pricing available — contact us for a quote
- Fast international shipping
- OEM & aftermarket options
Need bulk pricing or a custom quote? Submit an RFQ →