Description
Product Overview
The Cummins 3964817 banjo bolt connects fluid lines—such as fuel or oil—to diesel engine systems. It helps deliver fuel or oil efficiently, supporting engine performance and preventing leaks. Designed for a perfect fit, this bolt plays a key role in keeping your engine running smoothly.
Key Features
Perfect Fit for Cummins Engines: Designed to match Cummins’ engine specs, the bolt connects fluid lines securely and without leaks.
Built to Last: Made of high-strength steel and treated with a corrosion-resistant coating, it withstands high pressure and heat.
Supports Fuel and Oil Flow: A cross-drilled design allows fluid to flow through the bolt with minimal restriction.
Leak-Free Operation: Used with sealing washers, the bolt prevents leakage even under vibration and fluctuating pressure.
Reliable Performance: This small part contributes to the stable operation of larger systems by keeping fluid lines secure.
Applications
This banjo bolt works in many heavy-duty applications. You’ll find it in commercial trucks, construction equipment, diesel generators, and agricultural machinery. It is commonly used with these engine models:
Cummins ISLe / ISDe series
Cummins 6BT and 4BT
QSB and QSL series
Other diesel platforms with compatible fuel or oil line systems
Typical uses include:
Connecting fuel supply or return lines
Securing oil lines to filters or turbos
Mounting banjo-type hose fittings to pumps or injectors
Technical Specifications
Part Number: 3964817
Thread Type: Metric (verify thread pitch before installation)
Material: Hardened steel
Surface Finish: Zinc or phosphate coating
Design: Hex head with drilled passage for fluid flow
Sealing Method: Copper washers or rings (not included)
Installation Guidelines
For best results, follow these steps:
Clean both the bolt and the mounting surfaces.
Use the correct sealing washers.
Tighten the bolt using the torque values specified in your Cummins service manual.
Check for leaks after installation.
To ensure long-term performance, inspect for wear or corrosion before each use. Proper installation reduces the chance of leaks and keeps your fuel or oil system working as intended.
Built to Cummins Standards
Cummins ensures every bolt meets high standards. The 3964817 banjo bolt is inspected for quality, durability, and fit. It performs reliably under pressure, heat, and continuous use. Whether in the field or on the highway, it supports engine health by keeping fluid connections tight and leak-free.
Why Choose the 3964817 Banjo Bolt?
Choosing genuine or OEM-grade parts helps protect your engine. The 3964817 bolt is small but essential. It supports safe and efficient engine operation, reduces downtime, and helps you avoid costly repairs caused by leaks or improper fittings.
Summary
The Cummins 3964817 banjo bolt provides a strong, secure connection for fuel or oil lines. With its precise engineering, tough material, and leak-resistant design, it’s ideal for demanding diesel engine environments. For anyone maintaining Cummins engines, this bolt is a smart and reliable choice.
