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FLASHSALE26

Outboard Decal Set – Fits Yamaha 40HP 2-Stroke & 4-Stroke Engines (Replaces OEM Parts)

Regular price $36.50

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@sierramarines.com, and we’ll get back to you within 20–36 hours.

Product Details

This aftermarket Marine Outboard Decal Set is designed to fit a wide range of Yamaha 40HP engines, providing a complete refresh for your motor's appearance. It is compatible with 2-Stroke models from 1984 to the present (including EK40GMH/JMH/JW series) and 4-Stroke F40LA models from 1999 to the present.

  • Features a simple peel-and-stick application with pre-cut decals for an exact fit.
  • Engineered for harsh marine environments, both freshwater and saltwater.
  • The set includes all primary decals for a comprehensive replacement.

Engine & Model Compatibility

Confirm your engine model/year in the table below.

Brand Model Rated HP Stroke Years OEM Part No. Notes
Yamaha EK40GMH/JMH/JW 40 2-Stroke 1984–Present Various OEM Numbers Universal aftermarket kit
Yamaha F40LA 40 4-Stroke 1999–Present Various OEM Numbers Universal aftermarket kit

Technical Specs

Product Type
Marine Engine Decal Set
Installation
Pre-cut, peel-and-stick application
Material
Marine-grade PVC vinyl
Printing Technology
Digital UV-resistant inks
Surface Treatment
Protective clear lamination
Adhesive Type
High-performance acrylic
UV Protection
8-10 years fade resistance
Temperature Range
-40°F to 225°F (-40°C to 107°C)
Water Resistance
100% waterproof (fresh & salt water)
Chemical Resistance
Fuel, oil, and solvent resistant
Thickness
3 mil (0.076mm) premium grade
Warranty
5-year performance guarantee
Certifications
ISO9002 certified manufacturing

What’s in the Box

  • For 2-Stroke engines: A 6-piece decal set, pre-cut to OEM dimensions.
  • For 4-Stroke engines: A 7-piece decal set, including a FourStroke-specific decal, pre-cut to OEM dimensions.

Installation Notes

  1. Prepare the surface by thoroughly cleaning the engine cowling to remove all wax, oil, and debris. Ensure the surface is completely dry.
  2. For best results, apply decals in a shaded area at a temperature between 50°F and 90°F (10°C–32°C).
  3. Carefully peel the decal from its backing paper. A light mist of application spray or soapy water on the surface can help with positioning.
  4. Align the decal and gently press it onto the surface, starting from the center and working your way out.
  5. Use a squeegee or soft cloth to smooth out the decal and remove any air bubbles or excess water.
  6. Allow the adhesive to cure for at least 24 hours before exposing the engine to heavy use or water.

Troubleshooting & FAQ

How do I know if this decal set fits my 40HP engine?

This kit is designed for Yamaha 40HP 2-Stroke engines (1984–Present) and 4-Stroke F40LA models (1999–Present). Please check the Engine & Model Compatibility table and compare it with your engine's model and year to ensure a correct fit.

What is the difference between the 2-Stroke and 4-Stroke decal kits?

The 2-Stroke kit contains 6 pieces, while the 4-Stroke kit contains 7 pieces, which includes a specific "FourStroke" decal. The designs are tailored to match the cowlings of their respective engine types.

Can I install these decals myself?

Yes, installation is straightforward. The decals are pre-cut and use a peel-and-stick application. For best results, follow the installation notes provided and take your time to ensure proper alignment.

How long will these decals last in a marine environment?

These decals are made from marine-grade PVC with UV-resistant inks and a protective laminate, offering an expected fade resistance of 8-10 years. They are 100% waterproof and resistant to fuel, oil, and solvents.

What is the best way to remove old, cracked decals?

Gently heat the old decals with a heat gun or hairdryer to soften the adhesive. Use a plastic scraper or razor blade to carefully lift the edges. Once the decal is removed, use an adhesive remover to clean off any remaining residue before applying the new set.

Is this an OEM part?

This listing is an aftermarket replacement (not OEM). It is built to OEM-level specifications with comparable materials. The product is manufactured in an ISO 9002 facility and batch-inspected for consistency.

What are the shipping speed and cost?

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

What is the warranty and return policy?

This product is covered by a 1-year warranty against manufacturing defects under normal use. If any issues arise, contact our support team with your order details. Returns are accepted within our standard window for unused items in their original condition. Please 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.

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