Hexagon Flange Head Cap Screw Cummins 3066498

Product Overview

The 3066498 Hexagon Flange Head Cap Screw is a high-performance fastener specifically engineered for Cummins heavy-duty diesel engines. Featuring a built-in flange, this screw eliminates the need for a separate washer, providing a larger bearing surface to distribute clamping pressure evenly and prevent loosening under intense engine vibrations and dynamic loads.

Technical Specifications

• Part Number: 3066498
• Thread Size: 7/16 – 14
• Length: 3 inches
• Head Type: Hexagon Flange
• Material: High-strength steel for maximum durability
• Weight: 0.15 lb

Engine Compatibility

This versatile fastener is utilized across several critical Cummins engine platforms, including:

• K19 and K38 Series
• QSK19 (CM2350 K144G)
• QSK38 (CM2150 MCRS, CM850 MCRS)
• QSK50 (CM2150 MCRS, CM2350 K108)

System Integration

The 3066498 screw is essential for maintaining structural integrity in various engine systems:

• Turbocharging & Air Supply: Secures compressor wheels and turbine housings.
• Exhaust Systems: Critical for manifold mounting to withstand high thermal expansion and pressure.
• Cooling Systems: Used to attach fan blades to hubs for stable, wobble-free operation.
• Mechanical Components: Secures engine mounts, control rods, and drive mechanisms.