eBay

🛒 Title
DEF No Fill Decal | No Diesel Exhaust Fluid Tank Sticker | Truck DEF Safety Label | Semi Truck Fuel Tank Warning Decal | Pair
📦 What's Included
• Quantity: 1 Pair (2 decals)
• DEF NO FILL warning decals
• Printed on transparent clear vinyl
• Professional no-background appearance
📏 Size
• 3.5" x 3.5" each decal
⭐ Perfect For
• Semi truck fuel tanks
• Auxiliary fuel tanks
• Transfer tanks
• Service trucks
• Fleet vehicles
• Construction equipment
• Agricultural equipment
• Diesel fueling locations
⚠️ Why You Need It
Mis-fueling a diesel tank with DEF can cause major engine damage and expensive repairs. These decals help drivers, mechanics, and fuel attendants quickly identify tanks that should not receive Diesel Exhaust Fluid.
🧪 Material & Durability
• Printed on transparent clear vinyl
• Strong adhesive that is weatherproof
• Printed with eco solvent inks for long lasting color
• Professional appearance with no white background
• Fuel and road grime resistant
• Suitable for indoor or outdoor use
🚛 Built for Real Working Trucks
Designed for commercial vehicles, fleet operations, owner-operators, service trucks, and equipment where clear fuel identification is critical.
🇺🇸 Proudly Made in the USA
All decals are designed, printed, sold, and shipped from our shop in the USA.
We are a veteran family-owned business.
🚚 Shipping
Fast handling — items ship same day or next business day.
📦 Tracking Notice
USPS tracking updates are based on package scans and may not always update in real time. Occasionally a package may show delivered early and arrive the following day. Please allow extra time for delivery and check with your local post office if needed.
❓ Questions
If you have any questions, feel free to ask. Thank you for supporting a small American business!
Disclaimer:
Some listing images may be AI-generated mockups intended to show possible placement ideas. Actual decal size should be determined using the listed measurements above.

Best applied to smooth painted metal or aluminum to get good adhesion