3548221C1 | Genuine OEM International/Navistar Non-Locking Fuel Cap

3548221C1 is a Genuine OEM International/Navistar Non-Locking Fuel Cap designed for compatible heavy-duty truck diesel fuel tanks. It provides a secure closure for the fuel tank while helping protect the fuel system from dirt, debris, and contamination.

PRODUCT INFORMATION

• Part Number: 3548221C1
• Brand: International/Navistar
• Condition: New
• Component: Fuel Cap
• Type: Non-Locking Fuel Cap
• Fuel Type: Diesel
• System: Diesel Fuel Tank / Fuel System

APPLICATIONS

• Compatible International/Navistar heavy-duty truck fuel systems
• Diesel fuel tanks where 3548221C1 is specified
• Exact fitment depends on vehicle model, model year, fuel tank configuration, and OE specifications.

FUNCTION

The fuel cap seals the fuel tank opening and helps prevent fuel contamination and unwanted exposure to external debris. Properly fitted fuel caps also help maintain the integrity of the fuel tank and fuel system.

A worn, damaged, or failing Fuel Cap may cause symptoms such as:

• Loose or improper fit
• Difficulty securing the fuel cap
• Fuel odor around the tank
• Damaged or deteriorated sealing surface
• Increased risk of fuel contamination
• Cracks or visible physical damage

WHY REPLACE A NON-LOCKING FUEL CAP?

A damaged or improperly fitting fuel cap can compromise the fuel tank seal and allow dirt, moisture, or other contaminants to enter the fuel system. Replacing a worn cap with the correct OEM-specification part helps maintain proper fuel tank closure and protection.

FITMENT INFORMATION

Always verify the part number, vehicle model, model year, fuel tank configuration, and OE specifications before ordering. Exact fitment may vary by vehicle configuration.

If you are unsure whether this part is correct for your vehicle, please contact us with your VIN and original part number. We are happy to help verify compatibility before purchase.

GENUINE INTERNATIONAL/NAVISTAR PART

Part Number: 3548221C1