Illustrative photo — the delivered item may differ in appearance. Orders are fulfilled by catalog part number (SKU).
Fuel Supply Tube Cummins 3966128 | 3966131, 3979403, 3966130, 3966129, 3979330
Ensure consistent and reliable fuel delivery with this premium fuel supply tube for Cummins 8.9L ISC and ISL engines. Engineered for a precise fit and long-lasting durability under high pressure.
Description
High-Performance Fuel Supply Tube for Cummins ISC & ISL Engines
The Cummins 3966128 fuel supply tube is a critical component of your engine’s fuel delivery system, designed to transport fuel efficiently from the fuel pump to the injectors. Engineered specifically for Cummins 8.9-liter ISC and ISL engines, this tube ensures a consistent and leak-free supply of fuel, which is essential for maintaining optimal combustion, engine performance, and fuel efficiency.
This part is also available under the numbers: 3966131, 3979403, 3966130, 3966129. Built to withstand high operating pressures and extreme under-hood temperatures, this fuel supply tube offers exceptional durability and resistance to wear, vibration, and corrosion. Replacing a worn or damaged fuel line is vital to prevent fuel leaks, pressure drops, and potential engine damage.
Key Features & Benefits
- Precise Fitment: Designed to meet exact specifications for Cummins 8.9L ISC and ISL engines, ensuring a seamless installation.
- Durable Construction: Manufactured from high-grade materials to resist corrosion, high pressures, and thermal stress.
- Optimal Engine Performance: Maintains steady fuel pressure and flow to support efficient combustion and reduce emissions.
- Reliable Seal: Engineered to prevent leaks, protecting your engine compartment and maintaining system integrity.
Compatible Engine Models
- Cummins ISC (8.9L)
- Cummins ISL / ISL9 (8.9L)
- Cummins QSL9
Cross-Reference / Interchange Part Numbers
This part replaces / is interchangeable with the following part numbers:
- 3966128
- 3966131
- 3979403
- 3966130
- 3966129
- 3979330
