3-Inch Blue Marine Boat Registration Letter & Number Decal Kit – Replacement for STIFFIE SH05, Hardline BLU350EC & STIFFIE HL102
3-Inch Blue Marine Boat Registration Letter & Number Decal Kit – Replacement for STIFFIE SH05, Hardline BLU350EC & STIFFIE HL102 is backordered and will ship as soon as it is back in stock.
Worry-free returns
Worry-free returns
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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.
3-Inch Blue Marine Boat Registration Letter & Number Decal Kit ...
3-Inch Blue Marine Boat Registration Letter & Number Decal Kit – Replacement for STIFFIE SH05, Hardline BLU350EC & STIFFIE HL102 is backordered and will ship as soon as it is back in stock.
Product Details
This blue 3-inch marine boat registration letter and number decal kit provides adhesive characters for displaying a vessel registration number on a clean, smooth surface. The decals are suitable for many boats and personal watercraft when the application surface, character contrast, spacing, and local registration requirements are appropriate.
The kit is commonly cross-referenced as a replacement for STIFFIE Shift Blue SH05, Hardline Products BLU350EC, and STIFFIE Hardline Fl. Blue/Pink HL102. Confirm the character style, color, size, and quantity required for your vessel before ordering.
- Easy Installation: Peel and apply the self-adhesive decals to a clean, smooth surface.
- Marine-Use Construction: Outdoor vinyl is designed for exposure to sunlight, water, and normal marine conditions.
- Complete Character Selection: Includes four sets of letters A-Z and numbers 0-9 for creating registration markings.
Part Number Matrix
The following aftermarket and manufacturer references are provided as cross-reference information. They are not an indication that this product is manufactured by those brands.
| Brand | Part Number |
|---|---|
| STIFFIE | SH05 |
| Hardline Products | BLU350EC |
| STIFFIE | HL102 |
Compatibility
This is a universal registration decal product rather than an engine-specific part. It may be used on compatible boats and personal watercraft from brands such as Sea-Doo, Yamaha, Kawasaki, Honda, and others when the vessel has a clean, smooth application area and the decals meet the applicable registration requirements. Always verify the required size, color, layout, and character style with the relevant registration authority.
Technical Specs
- Product Type
- Marine registration letter and number decal kit
- Installation
- Peel-and-apply adhesive decals
- Material
- Outdoor vinyl
- Color
- Blue
- Character Height
- 3 inches (76.2 mm)
- Features
- Designed for outdoor marine use with resistance to sunlight, water, and normal surface wear
What's in the Box
- 4 sets of letters A-Z
- 4 sets of numbers 0-9
- Total: 144 individual decals
Installation Notes
- Prepare the Surface: Clean the application area with soap and water or rubbing alcohol to remove dirt, wax, and grease. Allow the surface to dry completely.
- Plan the Layout: Arrange the required characters before removing the backing. Use a measuring tape and masking tape to establish straight, evenly spaced positioning on the hull.
- Apply the Decals: Peel each decal from its backing and apply it carefully from one edge, smoothing as you go to minimize air bubbles.
- Secure Adhesion: Press firmly across each decal with a squeegee or plastic card to help establish contact with the surface.
- Allow Bonding Time: Keep the surface dry and allow at least 24 hours for the adhesive to bond before exposing the vessel to water, when practical.
Troubleshooting & FAQ
Are these decals automatically compliant with USCG or state registration requirements?
No decal alone guarantees compliance. The characters are 3 inches high, but requirements may also address placement, contrast, spacing, character style, and visibility. Check the rules of the applicable registration authority before installation.
What is the best way to align the numbers and letters?
Use painter's or masking tape to create a straight baseline on the hull. Align the bottom of each character with the tape as you apply it. A small level can help keep the layout horizontal.
Can I apply these to an inflatable boat or flexible PWC surface?
These decals are intended for rigid, smooth surfaces such as fiberglass or painted aluminum. Adhesion may be poor on flexible, textured, dirty, waxed, or porous surfaces. Test a small area first and follow the surface manufacturer's recommendations.
How do I remove old registration numbers?
Gently warm old decals with a hairdryer or a heat gun on a low setting. Lift them with a plastic scraper or fingernail, then remove residue with a suitable adhesive remover or rubbing alcohol that is safe for the hull finish.
Will the color fade in the sun?
The outdoor vinyl is designed to resist normal sun exposure, but fading can vary with climate, exposure time, cleaning products, and surface conditions.
Is this an OEM product?
No. This listing is for an aftermarket replacement decal kit. The cross-reference numbers identify comparable reference products and do not indicate OEM manufacture or endorsement.
How quickly will my order ship?
Available shipping methods, delivery estimates, and costs are shown at checkout and may vary by destination and service level.
What is the warranty and return policy?
Warranty coverage and return eligibility are governed by the applicable store policies. Contact support with your order details if you receive damaged, defective, or incorrect items.
Safety & Important Information
- Verify the character size, color, style, quantity, and placement requirements for your vessel before purchase and installation.
- This is an aftermarket registration decal kit, not an OEM component.
- Do not apply decals over dirt, wax, grease, loose paint, damaged surfaces, or areas that prevent secure adhesion.
- Allow the adhesive to bond before washing, launching, or exposing the vessel to substantial water.
About Sea Sierra
- Pro-Grade Standards — We supply marine products selected for practical use in real-world conditions.
- Global Fulfillment — Available delivery options and estimated transit times are displayed during checkout.
- Manufacturer-Direct Value — We aim to provide dependable replacement products at fair prices.
Payment & Security
Payment methods
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