Locking Fuel Cap 7X7700 for Caterpillar Excavator 320C Dozers D3C Loaders 931B

Locking Fuel Cap for Caterpillar

This locking fuel cap with part number 7X7700 replaces the original fuel cap on Caterpillar excavators, dozers, and loaders, providing secure locking to prevent fuel theft and contamination.

Overview

This locking fuel cap is a direct-fit replacement for Caterpillar 320C excavators, D3C dozers, and 931B loaders, designed to seal the fuel tank and deter unauthorized access. The built-in lock mechanism ensures only the key holder can open the cap, while the robust construction withstands harsh job-site conditions. Maintaining a proper fuel cap seal also helps keep dirt and moisture out of the fuel system.

Built For Performance

• Heavy-duty metal housing resists impact and corrosion
• Keyed lock with duplicate key included for convenience
• Neoprene gasket creates a tight, leak-proof seal
• Tether strap prevents cap loss during refueling
• Engineered to match OEM specifications for secure fitment

Fits These Machines

• for Caterpillar Excavator 320C
• for Caterpillar Dozer D3C
• for Caterpillar Loader 931B

On-The-Job Use

• Securing fuel tanks on construction excavators during overnight parking
• Replacing worn or missing caps on bulldozers in mining operations
• Preventing fuel theft on loader fleets at aggregate yards
• Ensuring fuel system integrity on equipment operating in dusty environments

Specs At A Glance

Good To Know

Q: Does this cap come with keys? A: Yes, each locking fuel cap includes two keys for convenience.

Q: Will it fit a Caterpillar 320C with a different serial number? A: This cap is designed for the standard fuel tank on 320C series; always verify your existing cap part number matches 7X7700.

Slight variation in finish or dimensions may occur between production runs, and confirm compatibility before ordering.