• Fast shipping

  • Free help & advice

  • Hassle-free returns

  • Factory direct prices

Welcome Aboard!

FLASHSALE26

Diesel Only Sticker – Fits Universal Diesel Engines (Replaces N/A)

Regular price $7.99

Worry-free returns

Shop with confidence. If you’re not completely satisfied, eligible items may be returned within the return window, provided they are unused and in original packaging.


If the return is due to our error or a defective item, we’ll make it right.


Please contact us before returning any item.

Delivery and Shipping

Orders are typically processed within 1–2 business days.


U.S. orders usually arrive within 6–15 days, depending on stock location and destination.


International delivery times may vary due to customs processing.


Tracking information will be provided once your order ships.

If you have any questions, feel free to email us at info@seasierra.com, and we’ll get back to you within 20–36 hours.

Product Details

This pair of bright green Diesel Only Sticker for Fuel Cap – 1 Pair Green Labels (Prevents Misfueling) provides a clear visual reminder to prevent costly misfueling errors. Designed for universal application, these labels fit most diesel fuel caps on boats, cars, trucks, tractors, and heavy equipment. Their weatherproof and UV-resistant construction ensures durability in harsh marine and industrial environments.

  • Simple peel-and-stick application for quick installation.
  • Made from weatherproof vinyl with a strong industrial adhesive suitable for metal and plastic surfaces.
  • Each pack includes two stickers for multiple vehicles or as a spare.

Engine & Model Compatibility

Confirm your engine model/year in the table below.

Brand Model Rated HP Stroke Years OEM Part No. Notes
Universal Diesel engines All 2- & 4-Stroke All Compatible with cars, trucks, vans, boats, tractors, bulldozers, heavy equipment, construction & agricultural equipment

Technical Specs

Product Type
Fuel Cap Identification Sticker
Installation
Peel-and-stick application
Fuel Type
Diesel (identification purpose only)
Housing Material
Weatherproof vinyl
Housing Color
Green background with white text
Other Technical Attributes
UV-resistant, industrial adhesive compatible with both metal and plastic caps
Warranty
2-Year Replacement Warranty

What’s in the Box

  • 1 x Pair of Diesel Only Stickers for fuel caps

Installation Notes

  1. Ensure the fuel cap surface is thoroughly cleaned of dirt, grease, and moisture.
  2. Dry the surface completely before application for best adhesion.
  3. Carefully peel the sticker from its backing.
  4. Align the sticker on the center of the fuel cap and apply it, smoothing from the center outwards to avoid air bubbles.
  5. Press firmly across the entire surface to ensure a secure bond.

Troubleshooting & FAQ

Will this sticker fit my specific boat/truck model?

This sticker is designed with a universal fit for most standard diesel fuel caps on vehicles, boats, and equipment. As exact cap dimensions vary, we recommend measuring your cap to ensure it provides a suitable surface area for the sticker before purchasing.

How resistant is the sticker to fuel spills and weather?

The sticker is made from commercial-grade, weatherproof vinyl with a UV-resistant coating. It is designed to withstand exposure to diesel fuel, sunlight, rain, and salt spray, making it ideal for marine and outdoor use.

Can the sticker be removed without damaging the fuel cap?

Yes, while the industrial adhesive is strong, the sticker can typically be removed by gently heating it with a hairdryer to soften the adhesive and then peeling it off. Any remaining residue can be cleaned with an appropriate adhesive remover.

What is the difference between these and OEM labels?

This is an aftermarket identification product designed to be a universal solution. It serves the same function as an OEM warning label—preventing misfueling—but is not a direct copy or affiliated with any specific equipment manufacturer.

Why is it important to use a "Diesel Only" sticker?

Putting gasoline in a diesel engine (or vice-versa) can cause catastrophic engine damage, leading to expensive repairs. A bright, clear label on the fuel cap is a simple and effective preventative measure, especially for equipment used by multiple operators.

How long will the sticker last?

With proper surface preparation, the sticker is designed to last for many years. It is covered by a 2-year replacement warranty against defects like peeling or significant fading under normal operating conditions.

OEM vs. Aftermarket?

This listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, batch-inspected for consistency.

Shipping speed & cost

We ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.

Warranty & returns

Covered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact support with your order details. Returns are accepted within our standard window (unused & in original condition). See our policy page or reach out for instructions.

Safety & Important Info

  • Verify images/specifications vs your original part. If anything differs—even if your model appears compatible—do not purchase.
  • This is an aftermarket replacement, not an OEM component.
  • Professional installation is recommended for safety and performance.

About Sea Sierra

  • Pro-Grade Standards — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.
  • Fast Global Fulfillment — Free standard delivery to most regions in 5–15 days.
  • Manufacturer-Direct Value — Fair pricing without compromising on materials or QC.

Payment & Security

Payment methods

  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • JCB
  • Maestro
  • Mastercard
  • PayPal
  • Union Pay
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.