3957079 5086870AA Supply Line Fuel Rail for Diesel High Pressure CP3 Pump Tube

Product Overview

This aftermarket replacement high-pressure diesel fuel supply tube is identified for CP3 pump and fuel rail applications and cross-references part numbers 3957079 and 5086870AA. A fuel supply tube carries fuel between components within a diesel injection system.

Key Features & Performance

• Functions as a high-pressure diesel fuel supply tube.
• Supports fuel transfer between the CP3 pump and fuel rail system.
• Cross-references part number 3957079.
• Cross-references part number 5086870AA.
• Used when servicing or replacing the corresponding fuel system tube.

Common Uses

• Replacing a worn, leaking, damaged, or malfunctioning fuel supply tube.
• Routine service of the diesel high-pressure fuel system.
• Restoring the normal fuel transfer path after the existing tube has failed.

Technical Specifications

• Product Type: Diesel high-pressure fuel supply tube
• Part Number(s): 3957079, 5086870AA
• General Application: CP3 pump and fuel rail system

Frequently Asked Questions

Q: What does this high-pressure fuel supply tube do? A: It carries diesel fuel between components within a high-pressure injection system, including the CP3 pump and fuel rail.

Q: How should fitment be verified? A: Compare the complete part number, including 3957079 or 5086870AA, with the existing component and confirm the complete equipment model designation before purchase.

This is an aftermarket replacement part and is not represented as genuine or original equipment. Product appearance and specifications may vary slightly by batch. Compatibility may vary by serial number, model year, or existing part number. Verify fitment before purchase.