Boat Registration Number Decals – 3" Red Waterproof Stickers for Boats & PWC
These 3-inch red boat registration number and letter decals are designed for clear vessel identification on boats, yachts, and personal watercraft. Manufactured from waterproof, UV-resistant vinyl, these stickers are built to withstand harsh marine environments. When properly installed, they meet both US Coast Guard and state guidelines for displaying registration numbers.
This kit is a direct replacement for other popular 3" red decal sets, including NorthBoat 3" Red Hard, Hardline Products RED350EC, and STIFFIE Whipline WL Series.
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Installation Method: Simple peel-and-apply process for DIY application.
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Material: Marine-Grade Vinyl with a protective UV clear coating.
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Complete Set: Includes four full sets of letters A-Z and numbers 0-9.
Part Number Cross-Reference
Use this table to confirm equivalent part numbers across other brands.
| Brand |
Part Number |
| NorthBoat |
3" Red Hard |
| Hardline Products |
RED350EC |
| STIFFIE |
Whipline WL Series |
Compatible Vessels
These decals are suitable for a wide range of watercraft requiring registration numbers.
Recreational Vessels
| Vessel Type |
Notes |
| Boats |
All types requiring registration numbers |
| Yachts |
All types requiring registration numbers |
| Pontoons |
All types requiring registration numbers |
| Center Consoles |
All types requiring registration numbers |
| Bow-Riders |
All types requiring registration numbers |
Personal Watercraft (PWC)
| Vessel Type |
Notes |
| Jet Skis |
All brands requiring registration numbers |
| Waverunners |
All brands requiring registration numbers |
| Sea-Doos |
All brands requiring registration numbers |
| Jet Boats |
All brands requiring registration numbers |
Technical Specifications
| Specification |
Value |
| Product Type |
Boat Registration Number & Letter Decals |
| Installation |
Peel and Apply |
| Material |
Marine-Grade Vinyl with UV Clear Coating |
| Color |
Red |
| Size |
3" (76.2 mm) |
| Quantity |
4 Sets (A-Z and 0-9) |
| Total Decals |
144-146 pieces |
| Waterproof |
Yes |
| UV Resistant |
Yes |
| Adhesive Type |
High-Tack Permanent Waterproof |
| Scratch Resistant |
Yes |
| Surface Compatibility |
Gel-Coat, Fiberglass, Aluminum, Metal, Paint, Wood, SMC, Plastic |
| Font Style |
Block/Smooth |
| Application |
Both sides of vessel (Starboard and Port) |
| Regulatory Compliance |
Meets US Coast Guard & State guidelines when installed correctly |
Package Contents
4 x Complete Sets of Letters A-Z and Numbers 0-9 (144-146 total decals)
Note on Installation Type: This is a DIY package containing individual character decals. Some sellers offer premium pre-aligned decals on application tape for an additional fee; this package does not include that service.
Installation Guide
Follow these steps for a secure, long-lasting application:
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Select Location: Choose an area on both sides of the forward half of your vessel where the numbers will be clearly visible, per USCG and state regulations.
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Clean Surface: Thoroughly clean the application area with soap and water, followed by an isopropyl alcohol wipe to remove any wax, oil, or residue.
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Ensure Dryness: The surface must be completely dry before applying the decals.
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Create Guideline: Use a measuring tape and masking tape to create a straight, level line to guide your placement.
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Peel and Position: Carefully peel each decal from its backing paper. Avoid touching the adhesive. Position the decal along your guideline.
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Apply Firm Pressure: Starting from the center and moving outwards, press the decal down firmly. Use a squeegee or credit card to smooth it out and eliminate air bubbles.
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Repeat for All Characters: Apply the remaining characters, ensuring consistent spacing (typically a character's width) between each letter and number. A hyphen or space must separate the letters and numbers.
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Final Press: Once all decals are in place, go over them one last time with the squeegee to ensure a strong bond.
Troubleshooting & FAQ
Q: How do I ensure my registration numbers meet legal requirements?
A: To comply with US Coast Guard and state rules, the numbers must be painted on or affixed to both sides of the bow, be in block letters at least 3 inches high, and contrast with the hull color. Our 3" red decals meet the size and font requirements. Ensure they contrast with your boat's color and are spaced correctly.
Q: What is the best way to apply these decals for maximum longevity?
A: The most critical step is surface preparation. The area must be perfectly clean and dry. Applying them in a shaded, temperature-controlled environment (above 50°F / 10°C) also helps the adhesive cure properly for a permanent bond.
Q: Can these decals be removed?
A: While they use a permanent adhesive for durability, they can be removed. Gently warming the decal with a heat gun or hair dryer will soften the adhesive, allowing you to peel it off. Any remaining residue can be cleaned with an adhesive remover.
Q: OEM vs. Aftermarket?
A: This listing is an aftermarket replacement part (not an OEM component). We build to OEM specifications using comparable-grade materials. Production is done in an ISO9002-certified facility, and each batch is inspected for consistent performance.
Q: How fast do you ship and how much does it cost?
A: We offer fast global shipping—typically 5–15 days worldwide—and standard shipping is free. Expedited options are available at checkout depending on your location.
Q: What is your warranty and return policy?
A: This product includes a 1-year warranty against manufacturing defects under normal use. If something goes wrong, contact our support team with your order details. Returns are accepted within our standard return window (unused & in original condition); please see our policy page or reach out for instructions.
Important Notes
- Verify that the product specifications (size, color) match your requirements and will contrast properly with your vessel's hull for regulatory compliance.
- This product is an aftermarket replacement part and is not an OEM component.
- Careful application is recommended to ensure a secure, long-lasting, and compliant finish.
Why Choose JLM MARINE?
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Quality Assured: As a trusted manufacturer for over 20 years, we supply top marine brands globally.
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Fast Global Shipping: Free delivery worldwide in 5–15 days.
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Direct from Manufacturer: Competitive pricing without compromising quality.