Boat Registration Number Stickers – Fits All Boats & Personal Watercraft (Replaces STIFFIE Uniline, Hardline, QuickMarine)
Boat Registration Number Stickers – Fits All Boats & Personal Watercraft (Replaces STIFFIE Uniline, Hardline, QuickMarine) is backordered and will ship as soon as it is back in stock.
Worry-free returns
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
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.
Boat Registration Number Stickers – Fits All Boats & Personal W...
Boat Registration Number Stickers – Fits All Boats & Personal Watercraft (Replaces STIFFIE Uniline, Hardline, QuickMarine) is backordered and will ship as soon as it is back in stock.
Product Details
These universal Boat Registration Number Stickers are designed for easy application on all boat types, including yachts, personal watercraft (PWC), and jet skis that require hull registration numbers. The 3-inch height meets federal and state requirements for vessel identification.
Directly replaces common registration kits, including STIFFIE Uniline White 3" Decals, Hardline Products USA Series 350 Kits, and QuickMarine Alpha-Numeric Sets.
- Simple peel-and-stick application for quick, bubble-free installation.
- Made from high-tack adhesive vinyl with a UV coating for maximum durability.
- Resistant to water, salt, UV rays, scratches, and fuel.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number / Reference |
|---|---|
| STIFFIE | Uniline White 3" Registration Decals |
| Hardline Products | USA Series 350 3-Inch Registration Kit |
| QuickMarine | 4 Sets 3" Alpha-Numeric Registration Numbers |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
| Brand | Model | Notes |
|---|---|---|
| Universal | Boats | Required by federal law for all registered boats |
| Universal | Yachts | For vessel registration identification |
| Universal | Personal Watercraft | Includes Sea-Doo, WaveRunner, Jet Ski |
Technical Specs
- Product Type
- Boat Registration Number Stickers
- Installation
- Peel and Stick Application
- Housing Material
- High-Tack Adhesive Vinyl with UV Coating
- Housing Color
- White (Multiple colors available: White, Black, Green, Blue, Red)
- Dimensions
- 3" tall letters and numbers
- Weight
- 8.8 ounces (0.25 kg)
- Other Technical Attributes
- Waterproof, UV-resistant, scratch-resistant, fuel-resistant, saltwater-resistant
What’s in the Box
- 4 x Complete Sets of Letters A-Z and Numbers 0-9 (Total 144 characters)
Installation Notes
- Clean the application area thoroughly with soap and water or rubbing alcohol to remove any dirt, wax, or grime. Ensure the surface is completely dry.
- Carefully plan the spacing and alignment of your registration numbers. A common standard is a 1-inch space between characters. Use a measuring tape and masking tape to create a straight guideline.
- Peel the backing off the first character. Avoid touching the adhesive side.
- Align the character with your guideline and press it firmly onto the surface, starting from the center and smoothing outwards to prevent bubbles.
- Repeat for all characters, ensuring consistent spacing.
- Once all characters are applied, rub them firmly with a squeegee or a credit card to ensure a strong bond.
Troubleshooting & FAQ
Do these numbers meet legal requirements?
Yes. The 3-inch character height meets both US federal and state regulations for boat registration numbers. The clean, block-style font ensures they are clearly legible from a distance.
How do I remove old decals?
Gently heat the old decals with a hairdryer or heat gun on a low setting to soften the adhesive. Use a plastic scraper or your fingernail to peel them off. Any remaining adhesive residue can be removed with a dedicated adhesive remover or rubbing alcohol.
Are the stickers resistant to fuel and saltwater?
Absolutely. They are made from fuel-resistant and saltwater-resistant vinyl with a protective UV coating, making them ideal for the harsh marine environment.
Can I apply these on an inflatable boat or PWC?
Yes, these stickers are suitable for rigid hull surfaces on personal watercraft (PWCs) like Jet Skis and WaveRunners. For inflatable boats, ensure the surface is clean and smooth; for best results, apply to a rigid mounting plate if available.
What's the best way to ensure the numbers are straight?
Use a strip of masking tape as a straight-edge guide on the hull. Align the bottom of each sticker along the top edge of the tape for perfect alignment.
How many sets of numbers and letters are included?
The package contains four complete sets of all letters (A-Z) and numbers (0-9), providing more than enough characters for both sides of your vessel plus spares.
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
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