0337017002 Diesel Fuel Cap for Freightliner 96 18 Cascadia Columbia 2 Pack

Product Overview

The 2x Locking Diesel Fuel Cap set provides secure, key-matched protection for both fuel tanks on Freightliner Cascadia and Columbia trucks. Designed for fleet operators and owner-operators of 1996–2018 Freightliner Cascadia and Columbia, this 2x Locking Diesel Fuel Cap deters fuel theft and prevents contamination. These 2x locking diesel fuel caps install easily without modification and keep your diesel tanks sealed on the road.

Key Features & Performance

• Set of two keyed-alike locking caps secures both saddle tanks with one key
• Compatible with diesel fuel tanks on 1996–2018 Freightliner Cascadia and Columbia
• Direct replacement for OEM part 03-37017-002; snaps and locks in place
• Durable construction resists corrosion, UV exposure, and diesel fuel
• Prevents theft, unauthorized fueling, and dirt ingress
• Includes keys; simple push-and-turn locking operation

Fitment & Compatibility

• 1996–2018 Freightliner Cascadia (all diesel models)
• 1996–2018 Freightliner Columbia (all diesel models)
• Any 1996–2018 Freightliner with factory diesel saddle tanks using cap 03-37017-002

Common Uses

• Replacing missing or damaged fuel caps on heavy-duty diesel trucks
• Upgrading to locking caps to prevent fuel theft in fleet operations
• Standardizing keyed-alike caps across multiple trucks in a fleet
• Securing diesel tanks during long-haul parking and overnight stops

Technical Specifications

• Part Number(s): 03-37017-002
• Quantity: 2 locking caps
• Lock Type: Keyed with included keys (both caps keyed alike)
• Fuel Type: Diesel
• Material: Heavy-duty polymer with metal locking cylinder

Frequently Asked Questions

Q: Do both caps use the same key? A: Yes, both caps are keyed alike and come with matching keys that operate both locks, so you only need one key for both tanks.

Q: Will these caps trigger a check engine light or fuel system warning? A: No, they seal tightly to the filler neck and maintain proper tank pressure, so you won’t experience vacuum leaks or fuel system warnings when installed correctly.

Product appearance and specifications may vary slightly by batch. Compatibility may vary by serial number. Verify fitment before purchase.